ai engineer

full stack engineer

lead software engineer

machine learning engineer

platform engineer

software engineer backend

Zapp

<div><p><b>Principal Software Engineer, Backend</b></p><p>
Nine Elms, London. Full time (4 Days Onsite)</p><p>
You'll need the right to work in the UK and be based in London. We are not able to offer visa sponsorship for this role.</p><p><b>
About Zapp</b></p><p>
We deliver the essentials in minutes, 24/7, from our own network of stores. Every order is a real-time race against the clock, and the systems that win it are the backend you would own.</p><p>
Quick commerce is a genuinely hard backend problem. Stock changes by the second, orders and riders move in real time, and we make sub-minute promises we have to keep, at high throughput with no room for downtime. Getting that right, fast and reliably, is the job.</p><p>
We're AI-first and we mean it as a way of working, not a slogan: AI-assisted development is part of the daily toolkit, we ship LLM-powered features where they genuinely earn their place, and we expect every engineer to shape how we use it.</p><p>
Backed by the world's leading investors, built by people who've scaled Amazon, Deliveroo, Tesco, Just Eat and Stuart.</p><p><b>
Our Leadership Principles</b></p><p>
These five principles describe what great looks like at Zapp. They are the single framework we use across performance reviews, growth conversations, and leadership expectations.</p><ul><li><p>
Creating Magic</p></li><li><p>
Taking Ownership</p></li><li><p>
Raising the Bar</p></li><li><p>
Winning Together</p></li><li><p>
Delivering with Speed</p></li></ul><p><b>
The role</b></p><p>
You'll be the most senior backend engineer at Zapp, owning the technical direction of the services that run the business, from ordering and inventory to logistics and the platform underneath. This is a hands-on Principal role: you set the architecture and the standard, and you're still in the code every week shipping the hardest parts yourself.</p><p>
You'll work across the whole backend rather than one corner of it, going where the hardest problem is. You'll take ownership from a rough problem all the way to production and on-call, and you'll lift the engineers around you while you do it. When the team needs a pattern set, a hard call made, or the gnarly bit untangled, that's you.</p><p><b>
What you'll do</b></p><ul><li><p>
Set the technical direction. Own the architecture of the backend across services, and make the calls on patterns, boundaries and tooling that the rest of the team builds on.</p></li><li><p>
Build the hard parts yourself. Design and ship the services, APIs and data models behind ordering, inventory and logistics, and set the standard for what good looks like.</p></li><li><p>
Raise the bar. Lift the engineers around you through design review, pairing, and the standard you set, and leave the team stronger than you found it.</p></li><li><p>
Own reliability and scale. Keep high-throughput, real-time systems fast and available, and design for the failure modes that come with sub-minute delivery.</p></li><li><p>
Own delivery end-to-end. Pick up a problem, design the solution, ship it to production, and be on the on-call rotation that stands behind it.</p></li><li><p>
Bring AI into how we build. Use AI in your daily work, share the patterns that help the team move faster, and learn from what others discover.</p></li><li><p>
Help shape AI in our product. Build the backend behind LLM-powered features, from the data and APIs to the guardrails that keep them safe in production.</p></li><li><p>
Work across the boundary. Partner with mobile, data and ops engineers on the contracts and systems that tie the product together.</p></li></ul><p><b>
You're a great fit if you</b></p><ul><li><p>
Experienced. 7+ years building backend systems in production, with real scale behind you.</p></li><li><p>
Strong in TypeScript. It's core to our backend and you're genuinely fluent, not just passing through.</p></li><li><p>
Polyglot. You've shipped production code in more than one language and reach for the right tool for the job.</p></li><li><p>
Distributed systems depth. You design services, APIs and data models that hold up under real-time, high-throughput load.</p></li><li><p>
Own the data layer. Confident with relational and non-relational stores, and clear on the trade-offs between them.</p></li><li><p>
Lead without a title. You set technical direction and bring people with you through clarity and example, not authority.</p></li><li><p>
Production minded. Reliability, observability, performance and security are things you design in from the start, not bolt on after the incident.</p></li><li><p>
Comfortable in uncertainty. You move forward when the path isn't clear, instead of waiting for someone to define it.</p></li><li><p>
Test as you build. Automated tests are how you ship code you trust.</p></li><li><p>
Pragmatic about delivery. You measure your work by what shipped and held up, not the elegance of the design doc.</p></li><li><p>
Excellent communicator. Clear in how you write and speak, and you love sharing what you learn.</p></li></ul><p>
If most of these land for you, please apply. We hire on trajectory and curiosity as much as CV.</p><p>
Even better if you know</p><ul><li><p>
GCP. We run on Google Cloud, with Cloud Run, Pub/Sub and Firestore, so familiarity helps you hit the ground running.</p></li><li><p>
NestJS. Our TypeScript services are built on it.</p></li><li><p>
GraphQL. We run a federated gateway across multiple subgraphs, so federation experience makes schema and subgraph work easier.</p></li><li><p>
Event-driven architecture. Queues, streams and async messaging at scale.</p></li><li><p>
Infrastructure as code and DevOps. You're comfortable owning the path to production, not just the code.</p></li><li><p>
Quick commerce or similar domain. Logistics, on-demand delivery, or another real-time, high-throughput consumer environment.</p></li></ul><p><b>
You won't be a great fit if you</b></p><ul><li><p>
Need a fully defined process and a large, structured team to do your best work.</p></li><li><p>
Chase architectural purity at the expense of what the business actually needs.</p></li><li><p>
Stall when the path forward isn't clear, or wait to be told what to do.</p></li><li><p>
Want to stay strictly inside one service or specialty and avoid the rest of the stack.</p></li></ul><p>
What's the interview process like?</p><p>
We aim to make our process clear, respectful of your time, and a real two-way conversation.</p><ul><li><p>
Stage 1 - Intro call (30 min). A short chat about your background and a chance for us to tell you more about Zapp, the team, and the role.</p></li><li><p>
Stage 2 - Technical interview (90 min). Live coding and a system design discussion. You'll have full access to any AI tooling you'd normally use, and we'll send you a boilerplate repository in advance so you can focus on the problem, not the setup.</p></li><li><p>
Stage 3 - Values &amp; Leadership interview (60 min). A conversation with senior leadership about how you work, what you care about, and how you align with our Leadership Principles.</p></li><li><p>
Stage 4 - Offer.</p></li></ul><p>
We will need to verify your right to work in the UK before extending an offe<b>r.</b></p><p><b>
Benefits</b></p><ul><li><p>
Generous salary &amp; equity package</p></li><li><p>
25 days holiday per year, plus all bank holidays</p></li><li><p>
Private health insurance</p></li><li><p>
Extended sick pay and enhanced maternity and paternity leave</p></li><li><p>
Cycle to work scheme</p></li><li><p>
Pension (auto-enrolment)</p></li><li><p>
Budget for learning, conferences and kit</p></li></ul></div>

Principal Software Engineer, Backend

SIGNAL

<div><p><b>About Signal Ocean:<br>
</b></p><p><br>
Signal Ocean is the technology arm of the Signal Group, providing market-leading advanced machine learning and AI-driven intelligence to shipping and commodities professionals worldwide. Our platform delivers tailored, exclusive insights through web, mobile, and API interfaces, enabling clients to make faster, better-informed commercial decisions.</p><p>
Signal Ocean has recently acquired AXSMarine, a business with over 25 years of experience in the freight and commodities space - and is actively integrating the two companies. The combined business now offers the most comprehensive suite of freight market intelligence available, and we are actively building the team to realise the full potential of the integration.</p><p></p><p><b>
About the role</b><br>
<br>
As the Signal Ocean Platform continues to grow, we&rsquo;re expanding our engineering team. We&rsquo;re looking for a Software Engineer capable of building and maintaining scalable back-end data services (primarily in Python) within the Modelling &amp; Data Services team. Signal&rsquo;s Software Engineers work closely with data science, design, product, and business analysis professionals to develop robust solutions for the highly entrepreneurial domain of shipping.</p><p></p><p><b>
Technology stack:</b> We build cloud solutions using C#, .NET Core, Typescript, React, MSSQL Server, Azure, Python, MongoDB, Redis, Docker, Kubernetes, Grafana and more. We also offer the opportunity to work on complex architectures and technology stacks, as well as a global AI-powered tech product vision, supported by the use of multiple AI tools and accelerators. We use Agile to organize our teams and would love to onboard people who can contribute across product discovery, delivery, optimization, QA, DevOps, and Continuous Integration.</p><p></p><p><b>
Key Responsibilities:</b></p><p></p><ul><li>
Design and develop efficient, production-ready backend services &ndash; Transform prototypes and specifications into robust, scalable Python microservices that meet quality standards, performance requirements, and monitoring best practices</li><li>
Collaborate with data scientists and analysts &ndash; Act as a technical implementation partner, taking research prototypes and converting them into production-grade code with proper testing, error handling, and observability</li><li>
Maintain existing microservices &ndash; Investigate production issues, implement fixes, and enhance monitoring capabilities across the freight solutions backend ecosystem</li><li>
Ensure code quality and best practices &ndash; Write well-tested, documented code following software engineering standards; conduct code reviews and establish quality benchmarks for the team</li></ul><br>
<b>
Requirements</b><br>
<p></p><ul><li>
3+ years professional software engineering experience</li><li>
Strong CS fundamentals (data structures, algorithms, system design)</li><li><b>
Python</b> / FastAPI for server-side development</li><li>
SQL database experience</li><li>
Docker, Kubernetes, and CI/CD pipelines</li><li>
Strong debugging and problem-solving abilities</li><li>
Effective use of AI tools in development workflow</li><li>
Excellent English communication (written &amp; verbal)</li><li>
Comfortable with ambiguity and changing requirements in an experimental environment</li></ul><p></p><p><b>
Nice-to-have Skills:</b></p><br>
<ul><li>
C# / .NET</li><li>
Experience working in Data Science or Data Engineering teams</li></ul><br>
<b>
Benefits</b><br>
<p></p><ul><li>
Generous compensation with additional performance incentives.</li></ul><ul><li>
Coverage under the company&rsquo;s collective health insurance plan.</li><li>
Opportunity to work alongside experienced people with deep knowledge in software engineering, data science &amp; shipping business who are always eager to mentor.</li><li>
Signal&rsquo;s hybrid work policy currently includes 9 on-site working days per month, during which our happy hour events take place.</li><li>
2-4 weeks of onboarding training to prepare you for your new role, having the opportunity to meet about 30 trainers while diving deep into our products and/or the shipping world.</li><li>
Career growth opportunities and a structured development discussion every 4 months.</li><li>
Personal learning budget for training, seminars, conferences (750 to 2000 EUR annually depending on seniority).</li><li>
Regular team bonding events and activities.</li><li>
Fitness benefits to support your health and wellbeing</li></ul><p></p><p><i>
All applications will be considered under the terms and conditions of confidentiality in accordance with the regulations of personal data protection.</i></p><p><i>
We are an Equal Opportunity Employer committed to diversity and inclusion in the workplace. At Signal, we believe that diversity of opinions, approaches and viewpoints is key to our innovation and success and we encourage that with our hiring, development and rewards practices. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristics by law and take actions to eliminate those from our workplace.</i></p></div>

Backend Software Engineer (Python)

NatWest Group

<div><p>Closing date for applications: 03/07/2026</p>
<div>
<div><p>Location London, United Kingdom</p>
</div><div><p>Salary &pound;64,728 &ndash; &pound;91,380</p>
</div><div><p>Job typePermanent | Contract typeFull Time</p>
</div><div><div><p>Remote / On-site Hybrid</p>
<p></p><div><div><p>You&rsquo;ll spend some of your time at home, working with your team digitally. You&rsquo;ll also regularly work at your office or hub to collaborate with your colleagues.</p>
</div></div></div></div><div><div><p>Experienced</p>
<p></p><div><div><p>This is a general indication and doesn&rsquo;t always reflect day-to-day responsibilities. Check the job description for full details.</p>
</div></div></div></div></div><p>#R-00278295</p><br>
<div></div>
<p></p><div>
</div><div><div><div><h2 class="jobSectionHeader"><b>Join our digital revolution in NatWest Digital X</b></h2>
<p>In everything we do, we work to one aim. To make digital experiences which are effortless and secure.</p>
<p>So we organise ourselves around three principles: engineer, protect, and operate. We engineer simple solutions, we protect our customers, and we operate smarter.</p>
</div></div><div></div><div><h2 class="jobSectionHeader"><b>Job description</b></h2>
<p>This role is based in the United Kingdom and as such all normal working days must be carried out in the United Kingdom.</p>
<p></p><div><p>Join us as a Software Engineer, Frontend</p>
<p></p><ul><li>This is an opportunity for a driven Software Engineer to take on an exciting new career challenge</li>
<li>Day-to-day, you'll be engineering and maintaining innovative, customer centric, high performance, secure and robust solutions</li>
<li>It&rsquo;s a chance to hone your existing technical skills and advance your career while building a wide network of stakeholders</li>
</ul><p></p><h2 class="jobSectionHeader"><b>What you'll do</b></h2>
<p></p><p>In your new role, you&rsquo;ll be working within a feature team to engineer software, scripts and tools, as well as liaising with other engineers, architects and business analysts across the platform.</p>
<p></p><p>You&rsquo;ll also be:</p>
<p></p><ul><li>Producing complex and critical software rapidly and of high quality which adds value to the business</li>
<li>Working in permanent teams who are responsible for the full life cycle, from initial development, through enhancement and maintenance to replacement or decommissioning</li>
<li>Collaborating to optimise our software engineering capability</li>
<li>Designing, producing, testing and implementing our working software solutions</li>
<li>Working across the life cycle, from requirements analysis and design, through coding to testing, deployment and operations</li>
</ul><p></p><h2 class="jobSectionHeader"><b>The skills you'll need</b></h2>
<p></p><p>We&rsquo;re looking for someone to join our high performance engineering team building our new real time banking platform. You&rsquo;ll bring experience of working with Continuous Deployment practices in production environments. You&rsquo;ll have experience building user interfaces using React and working within cloud native environments, with an appreciation for automation as a core engineering principle.</p>
<p></p><p>You&rsquo;ll be comfortable contributing to the development of robust and reliable software, working as part of a team to deliver high quality frontend experiences. Exposure to agentic coding practices where it adds value, would be hugely beneficial</p>
<p></p><p>You'll also need:</p>
<p></p><ul><li>Experience building responsive user interfaces using React and TypeScript, including working with shared component libraries and using feature flags to support safe and incremental releases</li>
<li>Awareness of accessibility and performance considerations, with some experience of applying WCAG standards and optimising frontend performance such as rendering patterns, lazy loading and state management</li>
<li>Experience or exposure to building Backend for Frontend (BFF) services using Node.js such as Next.js, with an understanding of API and microservice design principles</li>
<li>The ability to work effectively in a team that values autonomy and empowerment, with a focus on delivering quality outcomes</li>
<li>Willingness to learn and develop, including supporting and learning from others within the team</li>
</ul></div><div>
</div></div></div><div><div><div><div><h2 class="jobSectionHeader"><b>Your benefits breakdown</b></h2>
<p>Here&rsquo;s a quick look at what your pay package and annual leave could look like if you get accepted for the role. We have a wide range of benefits to support you in your working life and beyond.</p>
<p>Please note, the presented benefits packages are based on the minimum base salary.</p>
<p>Tap each segment for details.</p>
</div><div><h3 class="jobSectionHeader"><b>Your pay package</b></h3>
<div><div><p>&pound;</p>
</div></div></div><p></p><div><div><h3 class="jobSectionHeader"><b>Your leave allowance</b></h3>
<div><p>28 days Annual leave You&rsquo;ll also have the opportunity to purchase up to 5 additional days off.</p> <p>3 days Volunteering Take time off to support the causes you&rsquo;re passionate about.</p> <p>3 days Training Take time to build the skills you need to grow your career.</p>
</div></div></div></div><div><div><div><h3 class="jobSectionHeader"><b>Total rewards package</b></h3><br>
<p></p>
</div><div>
</div></div></div></div></div><div><div><div><div><div><div><h2 class="jobSectionHeader"><b>Welcome to our Bishopsgate hub</b></h2>
<p>Based only a few minutes&rsquo; walk from Liverpool Street Station, the central location of this office makes working there incredibly convenient. Everything you need is close by, so you can run errands, go to the gym, and socialise with friends and colleagues before and after work.</p>
<p>Bishopsgate recently underwent a multi-year refurbishment programme to improve spaces and facilities as well as become more sustainable.</p>
</div></div></div></div></div></div><p></p><div><div><div><div><h3 class="jobSectionHeader"><b>Our tech stack</b></h3>
<p>Here&rsquo;s just some of the technologies we use.</p>
</div><div><h3 class="jobSectionHeader"><b>Front end</b></h3>
<div><ul><li>JavaScript</li>
<li>ReactJS</li>
<li>AngularJS</li>
</ul></div></div><div><h3 class="jobSectionHeader"><b>Back end</b></h3>
<div><ul><li>Python</li>
<li>Java</li>
<li>Microsoft Dynamics</li>
</ul></div></div><div><h3 class="jobSectionHeader"><b>DevOps</b></h3>
<div><ul><li>AWS</li>
<li>GitLab</li>
<li>Google Cloud Platform</li>
</ul></div></div><div><h3 class="jobSectionHeader"><b>Data</b></h3>
<div><ul><li>Kafka</li>
<li>Hadoop</li>
<li>PostgreSQL</li>
<li>Snowflake</li></ul></div></div></div></div></div></div>

Software Engineer, Frontend

Tabeo

<div><p>Our mission is to become the <b>financial and revenue operating system for primary care practices</b>.</p><p>
We help dental and veterinary clinics manage how money flows into the practice - from patient access, to payments, memberships, financing, insurance, and reporting - in one coherent system.</p><p>
Rather than treating payments, plans, and finance as separate tools, we combine them into a single operating layer that reflects how practices actually run their business.</p><p>
There are three structural shifts reshaping primary care right now:</p><ul><li><p><b>
Patient access is moving beyond opening hours</b>. Clinics are under pressure to be available when patients want to engage, not just when the front desk is staffed. Voice and chat interfaces are becoming the new front door to care.</p></li><li><p><b>
Revenue is becoming structured, not ad-hoc</b>. Memberships, financing, and insurance are increasingly used to smooth cashflow, improve access, and increase predictability &mdash; particularly as NHS capacity declines and private care expands.</p></li><li><p>
Practices need <b>better financial insight</b>, not more software. Owners and managers want to understand whether their pricing, plans, and utilisation make economic sense &mdash; without becoming analysts or relying on opaque tools.</p></li></ul><p>
Today, we support over 6,000 dental practices across the UK. 100 more join our platform every month. Tabeo is the dominant market leader for patient finance and seeks to reinvent memberships next. Beyond payments, we are launching a voice/chat AI solution that complements our existing products.</p><p>
Tabeo is profitable. We seek to grow revenue by 50-60% per year and exceed &pound;25 million ARR in 2028.</p><p>
We believe in a remote first approach to work and equip teams with perks and tools so they can thrive. However, we all come together 2x per year for our amazing &lsquo;Team Weeks&rsquo;. We previously met in Dubai, Lisbon, London and Athens. Next is a surprise!</p><p></p><p><b>
About the role:</b></p><p>
We&rsquo;re looking for an experienced backend engineer to join us! We currently have two cross-functional product teams. We&rsquo;re ambitious, and have many interesting strategic and technical challenges ahead of us, including:</p><ul><li><p>
Working towards our multi-product strategy as we scale our, Plans product</p></li><li><p>
Releasing our newest AI Revenue Engine product which is integrated across our product suite and provides multiple communication channels including voice, email, whatsapp and chat</p></li><li><p>
Expanding our target audience to include other primary healthcare providers (like vets and hearing specialists) and other regions/countries such as Germany.</p></li></ul><p>
Our legacy Finance system has supported us for 8 years and enabled us to reach &gt;10k dentists and create a sustainable, profitable business as we rapidly scale further. You should expect to play a key role in our engineering team:</p><p>
We typically use the following tools and technologies:</p><ul><li><p>
Go to write our application code</p></li><li><p>
Google Cloud and AWS for infrastructure</p></li><li><p>
Confluent Kafka for our events handling</p></li><li><p>
Serverless technologies in AWS e.g. API GW, Lambda, EventBridge, DynamoDB, Docker for our new infrastructure</p></li><li><p>
Postgres for our databases</p></li><li><p>
Our frontend uses Javascript and TypeScript and is hosted on Vercel</p></li></ul><p>
Our interview process includes:</p><p>
You&rsquo;ll start by having an initial call with our recruiter. From there, the process has three main stages:</p><ul><li><p>
A take home task (should take no more than 2 hours) or provide a sample from a public github we can discuss</p></li><li><p>
A technical interview with our engineering team</p></li><li><p>
A behavioural interview with our product team</p></li></ul><p>
As part of the process, we also ask candidates to complete a short critical thinking assessment in their own time. We use this as a benchmark alongside the interviews. It should take no longer than 40 minutes to complete.</p><p>
If we extend you an offer, we&rsquo;ll also arrange for you to meet Paul, our CEO, where you can ask any outstanding questions you have about Tabeo.</p><p><b><br>
Requirements:</b></p><ul><li><p>
You have strong experience working on a Go backend of a technology product, particularly if you&rsquo;ve worked with Go or in fintech before</p></li><li><p>
You&rsquo;re comfortable working with a DevOps mentality of &ldquo;you build it, you run it&rdquo;</p></li><li><p>
You have a product mindset: you care about customer outcomes and you want to make data-informed decisions</p></li><li><p>
You&rsquo;re comfortable leading on projects that are large in scope, ambiguous, or not well defined</p></li><li><p>
You&rsquo;re the kind of person that cares about their team, and works to continuously improve culture, processes and communication.</p></li></ul><p><b><br>
Benefits</b></p><p><br>
Competitive salary</p><p>
Remote-first working</p><p>
&pound;2,000 annual training and development budget</p><p>
Fully equipped home-office setup</p><p>
AXA Business Health private medical cover (UK), including dental, optical, life assurance, wellbeing support and gym discounts</p><p>
Electric car scheme</p><p>
24 days&rsquo; annual leave plus birthday off</p><p>
Enhanced parental leave</p><p>
Fertility treatment leave (up to 5 days per year)</p><p>
Contributing pension scheme (UK)</p><p>
Company trips, offsites, and team get-togethers we actually look forward to!</p><p></p><p><br>
We seek a fully remote candidate from the UK or anywhere GMT +/- 3</p></div>

Senior Backend Engineer (Golang)

Heidi

<div>
 <strong>
  Who is Heidi?
  <br/>
  <br/>
 </strong>
 Heidi is building an AI Care Partner that supports clinicians every step of the way, from documentation to delivery of care.
 <br/>
 <br/>
 We exist to double healthcare&rsquo;s capacity while keeping care deeply human. In 18 months, Heidi has returned more than 18 million hours to clinicians and supported over 73 million patient visits. Today, more than two million patient visits each week are powered by Heidi across 116 countries and over 110 languages.
 <br/>
 <br/>
 Founded by clinicians, Heidi brings together clinicians, engineers, designers, scientists, creatives, and mathematicians, working with a shared purpose: to strengthen the human connection at the heart of healthcare.
 <br/>
 <br/>
 Backed by nearly $100 million in total funding, Heidi is expanding across the USA, UK, Canada, and Europe, partnering with major health systems including the NHS, Beth Israel Lahey Health, MaineGeneral, and Monash Health, among others.
 <br/>
 <br/>
 We move quickly where it matters and stay grounded in what&rsquo;s proven, shaping healthcare&rsquo;s next era. Ready for the challenge?
 <br/>
 <br/>
 <strong>
  The Role
  <br/>
  <br/>
 </strong>
 A Senior Software Engineer responsible for the execution of the backend features, with a deep technical understanding and how it translates to representing user needs. You will have operated in a hyper growth startup with experience building SaaS products.
 <br/>
 <br/>
 You will also have a deep understanding of the key challenges engineers face and a firm grasp on design principles in prioritizing key features and capabilities.
 <br/>
 <br/>
 Your superpower is how to bridge the gap between technical specifics and business needs effortlessly and turn high-level designs into real-world solutions.
 <br/>
 <br/>
 You thrive in challenging situations, and you appreciate the dynamics of a flexible, flat-structured work environment. You are quick to grasp the nuances and complexities of developing an AI product healthcare internationally.
 <br/>
 <br/>
 We know that brilliant people can come from unlikely places; if you have a proven track record of shipping spectacular technically challenging products and features, regardless of industry, we want to meet you.
 <br/>
 <br/>
 <strong>
  What You'll Do
  <br/>
  <br/>
 </strong>
 Ultimately you will have the opportunity to work with the engineering mastermind behind Heidi developing AI products which will change the face of healthcare
 <br/>
 <br/>
 <ul>
  <li>
   Autonomously deliver beautiful &amp; robust code with considerations on code structure design and scalability.
  </li>
  <li>
   Implement and optimize data storage solutions.
  </li>
  <li>
   Design, build, and maintain high-performance backend systems using Python.
  </li>
  <li>
   Architect and manage cloud infrastructure, ensuring scalability and reliability.
  </li>
  <li>
   Develop and manage message queue systems for real-time data processing.
  </li>
  <li>
   Collaborate with frontend and AI teams to integrate new features and enhance existing APIs.
  </li>
  <li>
   Optimize API performance and handle API versioning, documentation, and testing.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  What We&rsquo;ll Look For
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Strong sense of ownership &amp; strong problem-solving skills.
  </li>
  <li>
   5+ years of backend development experience.
  </li>
  <li>
   Solid experience with MongoDB and Redis for data management.
  </li>
  <li>
   Experience building &amp; managing message queue systems at scale.
  </li>
  <li>
   Writing testable, effective and communicative code
  </li>
  <li>
   Data modeling, design patterns, understanding trade-offs
  </li>
  <li>
   Deep understanding of API design principles, including security, versioning, and performance.
  </li>
  <li>
   Data &amp; application security knowledge and skills
  </li>
  <li>
   Experience in integrating with third-party systems
  </li>
  <li>
   Competent with source code control and CI/CD pipeline technologies.
  </li>
  <li>
   Architecting and building highly available, scalable, secure &amp; performant systems
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  What do we believe in?
  <br/>
  <br/>
 </strong>
 Heidi builds for the future of healthcare, not just the next quarter, and our goals are ambitious because the world&rsquo;s health demands it. We believe in progress built through precision, pace, and ownership.
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 <br/>
 <ul>
  <li>
   Live Forever - Every release moves care forward: measured, safe, and built to last. Data guides us, but patients define the truth that matters.
  </li>
  <li>
   Practice Ownership - Decisions follow logic and proof, not hierarchy. Exceptional care demands exceptional standards in our work, our thinking, and our character.
  </li>
  <li>
   Small Cuts Heal Faster - Stability earns trust, speed delivers impact. Progress is about learning fast without breaking what people depend on.
  </li>
  <li>
   Make others better - Feedback is direct, kindness is constant, and excellence lifts everyone. Our success is measured by collective growth, not individual output.
   <br/>
   <br/>
  </li>
 </ul>
 Our mission is clear: expand the world&rsquo;s capacity to care, and do it without losing the humanity that makes care worth delivering.
 <br/>
 <br/>
 <strong>
  Why you should Join Heidi 🚀
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Real product momentum. We're not trying to generate interest, we're channeling it.
  </li>
  <li>
   Equity from day one. When Heidi wins, you win. You'll share directly in the success you help create.
  </li>
  <li>
   Unmatched impact. Play a pivotal role at a critical growth moment - working on a product that delivers tangible, real-world value to clinicians and patients every day.
  </li>
  <li>
   Work alongside world-class talent. Join a team of operators and builders who've scaled unicorns.
  </li>
  <li>
   Your health, covered. Comprehensive private medical and dental cover through Bupa, plus 24/7 mental health, coaching and wellbeing support through Sonder and a &pound;100/month Healthy Heidi&rsquo;s stipend.
  </li>
  <li>
   Global parental leave. 26 weeks paid for primary carers and 18 weeks for secondary carers, subject to eligibility.
  </li>
  <li>
   Fertility support. &pound;7,000 one-off payment, eligibility applies.
  </li>
  <li>
   Learning &amp; development. &pound;700 per year for courses, books, memberships, conferences and more.
  </li>
  <li>
   Home office budget. &pound;500 one-off to set up a workspace you actually want to work in.
  </li>
  <li>
   Recharge days after major milestones and busy periods so you can reset and come back strong.
  </li>
  <li>
   Work from anywhere for up to 4 weeks per year, wherever the world takes you.
  </li>
  <li>
   Clinical leave. 10 days per year for eligible clinical roles to maintain accreditation and requirements.
  </li>
  <li>
   Flexibility that works. A hybrid environment, with 3 days in the office.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Heidi&rsquo;s commitment to Diversity, Equity and Inclusion
  <br/>
  <br/>
 </strong>
 Heidi is dedicated to creating an equitable, inclusive, and supportive work environment that brings people together from diverse backgrounds, experiences, and perspectives. Our strength is in our differences. We're proud to be an equal opportunity employer and are proud to welcome all applicants as we're committed to promoting a culture of opportunity for all.
</div>


Senior Backend Engineer - UK

CrowdStrike

<div><p>As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn&rsquo;t changed &mdash; we&rsquo;re here to stop breaches, and we&rsquo;ve redefined modern security with the world&rsquo;s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We're proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute to a culture of responsible AI adoption, experimentation, and innovation. We use an AI-first mindset as a force multiplier to proactively and continuously accelerate execution, build expertise, uncover insights, and solve complex problems. We&rsquo;re always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you.</p><p><b><br>
About the Role:</b></p><p>
Does building systems that help security analysts close a critical incident before it becomes a breach excite you? Does correlating and analyzing data at trillions-of-events-per-day scale sound like the kind of challenge you want to wake up to? Do you care deeply about cybersecurity and want to play an active role in helping organizations defend themselves from sophisticated cyberattacks? We'd love to meet you.</p><p></p><p>
We are seeking a Senior Software Engineer, Cloud to join our Threat Detection and Incident Response (TDIR) team, helping revolutionize security management with our AI-native Falcon Next-Gen SIEM platform &ndash; enabling customers to detect, investigate, and hunt down threats 150x faster at Petabyte scale.</p><p></p><p>
You'll design, architect, and develop world-class case management and investigation capabilities in Go, empowering security analysts to be more effective at incident response, threat hunting, and collaborative investigations. You'll build intelligent workflows that connect detections, evidence, and response actions into cohesive cases. Leveraging advanced correlation, contextual enrichment, and AI/ML-powered insights, you'll help security teams work smarter through intelligent threat prioritization, automated investigation suggestions, and agentic analyst workflows &ndash; <i>helping them respond faster to emerging threats.</i></p><p></p><p>
While Go experience is preferred, strong backend engineers from other languages who can demonstrate rapid adaptability and a track record of delivering at scale are welcome to apply. If this is the kind of scale and impact you're looking for, we'd love to hear from you.</p><p></p><p><b>
What You&rsquo;ll do:</b></p><ul><li><p><i>
Own the engineering bar</i>. Drive architectural improvements, set the standard for code quality, and ensure our systems are performant, reliable, and built to last &ndash; not just for today's scale, but for what's next</p></li><li><p>
Lead system design and architecture decisions, including design reviews and RFC processes</p></li><li><p>
Develop Go-based microservices supporting threat detection, case management, and incident response workflows, alongside RESTful APIs that power customer-facing capabilities</p></li><li><p>
Take end-to-end ownership of technical initiatives, both individually and as part of a team, across projects of increasing scope and complexity</p></li><li><p>
Work closely with designers, product managers, and engineers across product groups to understand, design, and implement solutions</p></li><li><p>
Mentor junior and mid-level engineers through pair programming, code reviews, and one-on-one knowledge sharing</p></li><li><p>
Contribute to AI-powered capabilities including LLM integration, agentic workflows, and intelligent analyst tooling</p></li><li><p>
Participate in the on-call rotation and drive improvements that reduce your teams toil and increase system reliability</p></li><li><p>
Operate with a high degree of autonomy &ndash; you'll be trusted to make decisions and drive outcomes</p></li></ul><p></p><p><b>
What You&rsquo;ll Need:</b></p><ul><li><p>
A collaborative team player who lifts those around them (We believe in: <i>One team. One fight</i>!)</p></li><li><p>
8 + years of professional software engineering experience, with 5+ years building and operating distributed systems or cloud-native services at scale in production</p></li><li><p>
Solid understanding of distributed systems, scalability, RESTful patterns, and multithreading concepts</p></li><li><p>
Proficiency building and scaling resilient, low-latency services in production using Go, Python, Java, C++, or C#</p></li><li><p>
Hands-on experience with Docker, Kubernetes, and cloud platforms, preferably AWS or GCP</p></li><li><p>
Strong communicator and collaborator across functions and levels, with a bias for ownership and a customer-first mindset</p></li><li><p>
Proven ability to translate complex and ambiguous business requirements into technical solutions and deliver projects on schedule</p></li><li><p>
Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes.</p></li></ul><p></p><p><b>
Bonus points:</b></p><ul><li><p>
Currently developing Go-based microservices for scalable, high-throughput architectures</p></li><li><p>
Experience in cybersecurity, SIEM, SOAR, or adjacent security domains</p></li><li><p>
Hands-on experience with LLM integration, prompt engineering, RAG pipelines, or agentic AI frameworks</p></li></ul><p></p><p>
#LI-GO1</p><p>
#LI-HYBRID</p><p></p><p><b>
Benefits of Working at CrowdStrike:
</b></p><ul><li><p>Market leader in compensation and equity awards</p></li><li><p>
Comprehensive physical and mental wellness programs</p></li><li><p>
Competitive vacation and holidays for recharge</p></li><li><p>
Paid parental and adoption leaves</p></li><li><p>
Professional development opportunities for all employees regardless of level or role</p></li><li><p>
Employee Networks, geographic neighborhood groups, and volunteer opportunities to build connections</p></li><li><p>
Vibrant office culture with world class amenities</p></li><li><p>
Great Place to Work Certified&trade; across the globe
</p></li></ul><p></p><p>CrowdStrike is proud to be an equal opportunity employer. We are committed to fostering a culture of belonging where everyone is valued for who they are and empowered to succeed. We support veterans and individuals with disabilities through our affirmative action program.</p><p></p><p>
CrowdStrike is committed to providing equal employment opportunity for all employees and applicants for employment. The Company does not discriminate in employment opportunities or practices on the basis of race, color, creed, ethnicity, religion, sex (including pregnancy or pregnancy-related medical conditions), sexual orientation, gender identity, marital or family status, veteran status, age, national origin, ancestry, physical disability (including HIV and AIDS), mental disability, medical condition, genetic information, membership or activity in a local human rights commission, status with regard to public assistance, or any other characteristic protected by law. We base all employment decisions-including recruitment, selection, training, compensation, benefits, discipline, promotions, transfers, lay-offs, return from lay-off, terminations and social/recreational programs-on valid job requirements.</p><p></p><p>
If you need assistance accessing or reviewing the information on this website or need help submitting an application for employment or requesting an accommodation, please contact us at recruiting@crowdstrike.com for further assistance.</p></div>

Sr. Backend Engineer, Cloud - Threat Detection / Incident Response (Hybrid, London)

Burns Sheehan

<div>
 <p>
  <strong>
   Senior Backend Engineer &ndash; Fintech - Python
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   📍 London (Hybrid, 3 days per week)
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   💵 &pound;80,000 &ndash; &pound;90,000 + 10-20% Bonus
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   💻 Python, Django, Flask, Pandas, APIs, Airflow, Data Processing
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   📈 Growing Private Credit technology platform
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   ⚙️ Backend ownership, platform engineering and data-adjacent challenges
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  We're partnered with a specialist technology business operating within the Private Credit and Asset Finance space. Following multiple new client wins and a significant increase in platform demand, they're expanding their engineering team with the hire of a Senior Backend Engineer.
 </p>
 <p>
  <br/>
 </p>
 <p>
  This is a genuine ownership role within a small, highly capable engineering team. Engineers are responsible for features and components from design through to delivery, working closely with technical leadership and domain experts to shape the future of the platform.
 </p>
 <p>
  <br/>
 </p>
 <p>
  The business has built a sophisticated software platform used to manage and monitor complex financial workflows. As new projects continue to onboard, they're looking for an experienced Python engineer to help scale backend services, APIs and data-processing capabilities across the platform.
 </p>
 <p>
  <br/>
 </p>
 <p>
  One of the more interesting aspects of the opportunity is the level of influence available. There is no traditional product management layer, meaning engineers have direct input into technical decisions, ownership of meaningful components and the opportunity to shape how the platform evolves.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Ideal profile:
  </strong>
 </p>
 <p>
  &bull; 5+ years' commercial software engineering experience
 </p>
 <p>
  &bull; Strong Python backend development experience
 </p>
 <p>
  &bull; Commercial experience with Django, Flask or similar frameworks
 </p>
 <p>
  &bull; Experience building APIs and backend services in production environments
 </p>
 <p>
  &bull; Comfortable working with data-processing workflows, ETL pipelines or DataFrame-style tooling
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Senior Backend Engineer &ndash; Fintech - Python
  </strong>
 </p>
</div>


Senior Software Engineer

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