back end engineer

Alignerr

<div>
 
 About The Role
 
 
 
 What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Amsterdam to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products &mdash; from data pipelines and model-serving infrastructure to scalable microservices that handle real-world traffic at scale.
 
 
 This is a fully remote, flexible contract role. Whether you're a seasoned engineer looking for meaningful project work or a strong developer ready to apply your skills to AI-adjacent infrastructure, this is your chance to build things that matter.
 
 
 <ul>
 <li>
 Organization: Alignerr
 </li>
 <li>
 Type: Hourly Contract
 </li>
 <li>
 Location: Remote
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 Commitment: 10&ndash;40 hours/week
 
 
 </li>
 </ul>
 
 What You'll Do
 
 
 
 <ul>
 <li>
 Design, develop, and maintain robust back end services, APIs, and data pipelines
 </li>
 <li>
 Build scalable, high-performance server-side architecture to support AI training and inference workloads
 </li>
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 Write clean, well-documented, and testable code following engineering best practices
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 Integrate with databases, message queues, cloud services, and third-party APIs
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 Optimize system performance, reliability, and scalability as usage grows
 </li>
 <li>
 Collaborate asynchronously with distributed teams of engineers, researchers, and product leads
 </li>
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 Troubleshoot production issues, conduct code reviews, and contribute to architectural decisions
 </li>
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 Work independently on task-based and project-based assignments on your own schedule
 
 
 </li>
 </ul>
 
 Who You Are
 
 
 
 <ul>
 <li>
 Proficient in one or more back end languages &mdash; Python, Go, Java, Node.js, Rust, or similar
 </li>
 <li>
 Solid understanding of RESTful API design, microservices architecture, and distributed systems
 </li>
 <li>
 Experienced with relational and/or NoSQL databases (PostgreSQL, MongoDB, Redis, etc.)
 </li>
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 Comfortable working with cloud platforms such as AWS, GCP, or Azure
 </li>
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 Familiar with version control (Git), CI/CD pipelines, and containerization (Docker, Kubernetes)
 </li>
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 Strong problem-solving skills and the ability to debug complex systems independently
 </li>
 <li>
 Self-motivated, reliable, and effective when working asynchronously without close supervision
 </li>
 <li>
 Clear communicator who can document decisions and collaborate across time zones
 
 
 </li>
 </ul>
 
 Nice to Have
 
 
 
 <ul>
 <li>
 Experience building infrastructure for machine learning or AI systems
 </li>
 <li>
 Familiarity with data processing frameworks (Apache Kafka, Spark, Airflow, or similar)
 </li>
 <li>
 Background in performance optimization, caching strategies, or high-throughput systems
 </li>
 <li>
 Knowledge of authentication, authorization, and security best practices
 </li>
 <li>
 Experience with serverless architectures or event-driven design patterns
 </li>
 <li>
 Contributions to open-source projects or a strong portfolio of personal/professional work
 
 
 </li>
 </ul>
 
 Why Join Us
 
 
 
 <ul>
 <li>
 Work on cutting-edge AI infrastructure projects alongside leading research labs
 </li>
 <li>
 Fully remote and flexible &mdash; set your own hours and work from anywhere
 </li>
 <li>
 Freelance autonomy with access to meaningful, technically challenging work
 </li>
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 Build systems at the intersection of software engineering and artificial intelligence
 </li>
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 Collaborate with a global network of talented engineers and researchers
 </li>
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 Potential for ongoing work and contract extension as new projects launch
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 </ul>
</div>

Back End Developer (AI Infrastructure)

Nebius

<div>
 
 
 Why work at Nebius
 
 
 
 
 
 
 Nebius is leading a new era in cloud computing to serve the global AI economy. We create the tools and resources our customers need to solve real-world challenges and transform industries, without massive infrastructure costs or the need to build large in-house AI/ML teams. Our employees work at the cutting edge of AI cloud infrastructure alongside some of the most experienced and innovative leaders and engineers in the field.
 
 
 
 
 
 
 Where we work
 
 
 
 
 
 
 Headquartered in Amsterdam and listed on Nasdaq, Nebius has a global footprint with R&amp;D hubs across Europe, North America, and Israel. The team of over 800 employees includes more than 400 highly skilled engineers with deep expertise across hardware and software engineering, as well as an in-house AI R&amp;D team.
 
 
 
 
 
 
 The role
 
 
 
 
 
 
 We&rsquo;re looking for a Senior Backend Software Engineer to help develop our hyperscaling platform. We have a lot of tasks on Golang and little less on Java and Python.
 
 
 You&rsquo;re welcome to work from our office in Prague, Berlin or in Amsterdam, hybrid or remotely.
 
 
 
 
 
 
 In this position, your responsibility will be to:
 
 
 
 Developing fault-tolerant, reliable cloud services: cloud infrastructure, managed databases, managed Kubernetes, billing, monitoring systems, ML service and more.
 
 
 
 
 
 
 We expect you to have:
 
 
 
 
 
 <ul>
 <li>
 5+ years of professional software engineering experience
 </li>
 <li>
 Excellent knowledge of Golang or you are ready to quickly switch to this programming language
 </li>
 <li>
 Ability to write reliable code and dig into complex problems
 </li>
 <li>
 Teamwork-oriented approach
 </li>
 </ul>
 
 
 
 
 
 It would be an added bonus if you had:
 
 
 <ul>
 <li>
 Experience designing high-load and scaling services
 </li>
 </ul>
 
 
 
 
 
 We conduct coding interviews as part of the process.
 
 
 
 
 
 
 
 What we offer
 
 
 
 
 
 <ul>
 <li>
 Competitive salary and comprehensive benefits package.
 </li>
 <li>
 Opportunities for professional growth within Nebius.
 </li>
 <li>
 Flexible working arrangements.
 </li>
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 A dynamic and collaborative work environment that values initiative and innovation.
 </li>
 </ul>
 
 
 
 
 We&rsquo;re growing and expanding our products every day. If you&rsquo;re up to the challenge and are excited about AI and ML as much as we are, join us!
 
</div>

Senior Backend Engineer

Fastned

<div>Join a fast-growing, listed company with a purpose! Fastned owns and operates a network of 400+ fast charging stations across 10 European countries, allowing electric vehicle drivers to charge their car with 100% green energy in just 15 minutes. Our goal is a European network of 1000 fast charging stations in prime locations, where all electric vehicles can charge with renewable energy from the sun and wind. We have recently been voted best charging network in the UK, France and the Netherlands. If you want to make a difference and work in an informal, international scale-up environment with future prospects, then read on!<h3 class="jobSectionHeader">
Your role</h3>
Fastned is a pioneer in a completely new industry, aiming to accelerate the transition towards sustainable mobility by giving freedom to electric drivers. As a Senior Backend Engineer in our Charging team you'll be at the core of the team we're building. The Charging team owns all digital communication with our chargers via the industry-standard OCPP protocol, covering the full session lifecycle and driver-facing experiences such as Autocharge and Plug &amp; Charge. With 23,000+ charging sessions a day and billions of messages a year flowing through our systems, the services you build are business-critical &mdash; our team and EV drivers rely on them every day.
With your in-depth knowledge of Kotlin, Spring Boot (microservices), AWS, Kubernetes, Kafka, SQL, GitLab CI/CD and REST APIs, you create the scalable, high-availability services that ensure our customers can charge at any time. We're now evolving the charging stack to integrate with the MSP (Mobility Service Provider) proposition Fastned is building in-house &mdash; so there's a lot to build. As a senior engineer you'll set the technical bar and act as a key sparring partner for your team of fellow Backend Engineers, an Engineering Manager and a Product Manager.<h3 class="jobSectionHeader">
Your overall responsibilities include</h3><ul><li>
Designing, developing, testing and reviewing reusable, maintainable and scalable code for Fastned's charging platform and infrastructure;</li><li>
Delivering core charging milestones: the migration from OCPP 1.6 to OCPP 2.x, Autocharge and Plug &amp; Charge, and our shift to advanced maintenance using granular data and ML/AI modelling;</li><li>
Working AI-first: using AI-augmented engineering (Claude Code, agentic workflows and AI tooling) as a natural part of how you design, build, test and review &mdash; with judgment for where AI is a multiplier and where humans stay in the loop;</li><li>
Overseeing technical development from ideation to deployment, and taking operational responsibility for what you build (monitoring, alerting, incident analysis);</li><li>
Helping improve engineering methodologies and best practices, and mentoring others as a tech lead in the Charging team.</li></ul><h3 class="jobSectionHeader"> 
Who we are looking for</h3>
In order to be successful in this role you bring along a highly entrepreneurial mindset &mdash; we want our employees to 'Think like a founder'. You thrive on taking ownership of the engineering that creates a best-in-class user experience.
Additionally, you tick the following boxes:<ul><li>
You have 7+ years of professional backend experience, with strong hands-on Kotlin and/or Java and experience operating microservices in production.</li><li>
You've worked with AWS or other cloud platforms, containerization/orchestration (Docker/Kubernetes) and relational databases (e.g. Postgres).</li><li>
You're experienced building microservices with RESTful web services, and comfortable with event-driven architectures and tools like Kafka.</li><li>
AI-first instincts: you reach for AI tooling as a natural part of your workflow, with good judgment about its strengths, limits and risks.</li><li>
You demonstrate great communication and coaching skills and love working in a team; tech-lead experience is a strong plus.</li><li>
Proficiency in English is mandatory.</li><li>
You have a strong affinity with the energy transition and Fastned's mission.</li><li>
Nice to have: hands-on OCPP (1.6 and/or 2.x); e-mobility, MSP/CPO models or standards such as OCPI; high-throughput, real-time event-driven systems; mobile app backends (e.g. React Native); or building with LLMs/agents in production.</li></ul><h3 class="jobSectionHeader">
Join us in building a better future</h3>
We work hard to change the world, but we don't forget to recognise &amp; celebrate our successes, big and small. We focus on work-life balance, provide genuine work flexibility, and have family-friendly policies in place.
Electric mobility is new territory for you? Don&rsquo;t worry!
As part of your onboarding, you will participate in a series of exciting workshops where you will learn everything about our industry and fast-charging infrastructure.
Our benefits package includes:<ul><li>
Stock option plan - we believe in shared value creation.</li><li>
Pension plan (fully covered by Fastned).</li><li>
A training and development budget of &euro;3,000 per year per employee, because development and training are important to us and our sector offers endless opportunities.</li><li>
In order to experience and enjoy the EV life, you get access to our fully electric vehicle fleet (all charging expenses covered), which is also for private use.</li><li>
29 holidays. Additionally, we give you two mission days you can use to contribute to Fastned&rsquo;s mission or to support a cause that is important to you.</li><li>
Going the extra mile for parents: We provide you with personalised coaching support before, during, and after parental leave, facilitated by Foundree.</li><li>
Understanding women's health is beneficial for all of us, fostering empathy, improving communication, and creating a more inclusive workplace. That's why we teamed up with Flouria, providing you with quick access to a broad range of women's health professionals.</li><li>
Daily lunches, snacks &amp; drinks are provided at our office locations.</li><li>
Next to fun events year-round, we throw notorious Christmas parties and organise an amazing yearly trip abroad with all employees.</li><li>
Other perks include flexible working hours, full travel compensation and the working gear of your choice.</li></ul>
Interested in making an impact?
We would love to have a conversation with you!
Apply now, send us your CV and explain in your motivation letter why you&rsquo;re excited about joining Fastned.
Here&rsquo;s the next steps of the hiring process:<ul><li>
Screening call with Recruiter</li><li>
Codility assignment and technical interview with our Senior Engineers</li><li>
Culture-fit conversation with the team</li><li>
Closing Coffee Chat with our Head of Engineering / Director of Product &amp; Engineering</li></ul> 
Then, it&rsquo;s time to welcome you on board to Fastned! 
Fastned stands for equity and inclusion. We welcome applications from people of all backgrounds, gender identities, sexual orientations, religions, neurodiversity, disabilities, parental status or any other protected characteristic that makes you unique.
If you have questions or need further information regarding your application, please contact our recruitment team via recruitment(at)fastned.nl</div>

Databricks

<div>
 P-1317
 
 
 At Databricks, we are passionate about enabling data teams to solve the world's toughest problems &mdash; from making the next mode of transportation a reality to accelerating the development of medical breakthroughs. We do this by building and running the world's best data and AI infrastructure platform so our customers can use deep data insights to improve their business. Founded by engineers &mdash; and customer obsessed &mdash; we leap at every opportunity to solve technical challenges, from designing next-gen UI/UX for interfacing with data to scaling our services and infrastructure across millions of virtual machines. And we're only getting started.
 
 
 As a software engineer with a backend focus, you will work with your team to build infrastructure and products for the Databricks platform at scale.
 
 
 
 The Impact You'll Have
 
 
 
 Our backend teams span many domains across our essential service platforms. For instance, you might work on challenges such as:
 
 
 <ul>
 <li>
 Problems that span from product to infrastructure including: distributed systems, at-scale service architecture and monitoring, workflow orchestration, and developer experience.
 </li>
 <li>
 Deliver reliable and high performance services and client libraries for storing and accessing humongous amount of data on cloud storage backends, e.g., AWS S3, Azure Blob Store.
 </li>
 <li>
 Build reliable, scalable services, e.g. Scala, Kubernetes, and data pipelines, e.g. Spark, Databricks, to power the pricing infrastructure that serves millions of cluster-hours per day and develop product features that empower customers to easily view and control platform usage.
 
 
 </li>
 </ul>
 
 What We Look For
 
 
 
 <ul>
 <li>
 BS (or higher) in Computer Science, or a related field
 </li>
 <li>
 2+ years of production level experience in one of: Java, Scala, C++, or similar language.
 </li>
 <li>
 Experience developing large-scale distributed systems.
 </li>
 <li>
 Experience working on a SaaS platform or with Service-Oriented Architectures.
 </li>
 <li>
 Good knowledge of SQL.
 
 
 </li>
 </ul>
 
 About Databricks
 
 
 
 Databricks is the data and AI company. More than 10,000 organizations worldwide &mdash; including Comcast, Cond&eacute; Nast, Grammarly, and over 50% of the Fortune 500 &mdash; rely on the Databricks Data Intelligence Platform to unify and democratize data, analytics and AI. Databricks is headquartered in San Francisco, with offices around the globe and was founded by the original creators of Lakehouse, Apache Spark&trade;, Delta Lake and MLflow. To learn more, follow Databricks on Twitter, LinkedIn and Facebook.
 
 
 
 Benefits
 
 
 
 At Databricks, we strive to provide comprehensive benefits and perks that meet the needs of all of our employees. For specific details on the benefits offered in your region click here.
 
 
 
 Our Commitment to Diversity and Inclusion
 
 
 
 At Databricks, we are committed to fostering a diverse and inclusive culture where everyone can excel. We take great care to ensure that our hiring practices are inclusive and meet equal employment opportunity standards. Individuals looking for employment at Databricks are considered without regard to age, color, disability, ethnicity, family or marital status, gender identity or expression, language, national origin, physical and mental ability, political affiliation, race, religion, sexual orientation, socio-economic status, veteran status, and other protected characteristics.
 
 
 
 Compliance
 
 
 
 
 If access to export-controlled technology or source code is required for performance of job duties, it is within Employer's discretion whether to apply for a U.S. government license for such positions, and Employer may decline to proceed with an applicant on this basis alone.
 
</div>

Software Engineer - Backend

Adyen

<div>This is Adyen

Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&amp;M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition.

For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster.

For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster.
<h3 class="jobSectionHeader">
Senior Forward Deployed Engineer</h3>

Adyen's Business Enablement Engineering Team is looking for a Senior Forward Deployed Engineer who has a deep passion for AI and Automation. They will work on improving how teams work using their day to day productivity tooling by applying AI and automation where it has a huge effect and value.

You will be the primary driver of internal teams adopting and taking full advantage of our productivity tooling landscape. Operating as a highly technical expert, specialized, engineer, you will work with and dive deep into non-technical functions such as Legal, Support, and Operations to understand their operational toil, architect the right solutions, to reduce manual work in key business workflows, with the goal of speeding up the teams overall day to day work.

This isn't just about coding, it's about deeply understanding our internal team's most complex problems, leading the end-to-end technical delivery of innovative AI solutions, and empowering these teams to operate faster and smarter. You will be a hands-on engineer, shaping technical strategy and ensuring successful outcomes from initial concept to handover while increasing overall adoption of our tooling ecosystem.
<h3 class="jobSectionHeader">
What you will do</h3>
<ul><li>You build robust and resilient systems where maintenance is lower or non-existent. You build on top of our existing internal ecosystem or stakeholder tooling to accelerate teams productivity and user experience.</li>
<li>You create long-term high-quality documentation and runbooks. You hand ownership back to the function/team before moving on to your next project.</li>
<li>You identify repeated patterns of stakeholder issues or asks that feed back into Business Enablements Tooling roadmap.</li>
<li>Automate complex internal processes using Google Vertex AI, Google's Agent Development Kit (ADK), and software engineering to provide solutions(e.g., automated support agents, intelligent documentation retrieval, contract review automations).</li>
<li>Be responsible for the end-to-end technical delivery of complex technical solutions. You will personally write critical code, configure systems, and troubleshoot issues to ensure successful deployment and measurable business impact.</li>
<li>Embrace Adyen's &quot;launch fast&quot; formula. Quickly develop proofs-of-concept and minimum viable products, translating non-technical business requirements into technical solutions, and gathering feedback along the way.</li>
<li>Identify, analyze, and directly resolve the most complex technical challenges during all phases of the project, from complex data integrations on GCP/Kubernetes to advanced AI agent orchestration.</li>
</ul><h3 class="jobSectionHeader">Who you are</h3>
<ul><li>You are an expert in Software Engineering and bring strong automation skills, with the ability to build, troubleshoot, and scale scripts and tools independently.</li>
<li>You have a deep understanding of LLMs, prompt engineering, and applied ML workflows. You have hands-on experience integrating third-party AI models (e.g., Gemini) and using agentic orchestration frameworks (e.g., LangChain, LlamaIndex, Google ADK).</li>
<li>You have hands-on experience with Google Cloud Platform (GCP) especially integrating applications across services like Vertex AI as well as deploying to on-premise infrastructure such as K8S, Postgres, Redis etc.</li>
<li>You've successfully rolled out and maintained integrations across a variety of enterprise applications (Slack Enterprise Grid, Zoom, Atlassian suite).</li>
<li>You are great at understanding and translating non-technical issues into technical requirements. You can confidently navigate stakeholder conversations, present complex concepts simply, and create high-quality documentation.</li>
<li>You apply a security-first mindset, designing solutions that safeguard data and systems while maintaining a seamless user experience.</li>
<li>You have a &quot;get-things-done&quot; mentality, focusing on fast and impactful delivery, and the proven ability to lead technical initiatives autonomously.</li>
</ul>
Our Diversity, Equity and Inclusion commitments

Our unique approach is a product of our diverse perspectives. This diversity of backgrounds and cultures is essential in helping us maintain our momentum. Our business and technical challenges are unique, and we need as many different voices as possible to join us in solving them - voices like yours. No matter who you are or where you're from, we welcome you to be your true self at Adyen.

Studies show that women and members of underrepresented communities apply for jobs only if they meet 100% of the qualifications. Does this sound like you? If so, Adyen encourages you to reconsider and apply. We look forward to your application!

What's next?

Ensuring a smooth and enjoyable candidate experience is critical for us. We aim to get back to you regarding your application within 5 business days. Our interview process tends to take about 4 weeks to complete, but may fluctuate depending on the role. Learn more about our hiring process here. Don't be afraid to let us know if you need more flexibility.

This role is based out of our Amsterdam office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles.</div>

Senior Forward Deployed Engineer

Insify

<div>
 
 About Insify
 
 
 We are a high-growth scale-up backed by &euro;43M in total funding from world-class investors like Accel, Munich Re Ventures, and Formula 1 champion Nico Rosberg. While we started our journey five years ago in the Netherlands, we have since expanded into France and Germany, and we&rsquo;re just getting started. Our mission is to dominate the European market and become a global leader in AI-powered SME insurance.
 
 
 We aren't just building a company; we&rsquo;re leading a revolution. Our culture is intense, high-stakes, and mission-driven. We hire smart, ambitious "owners" who possess a relentless drive to win. This is an environment for those who thrive on challenges, value intellectual honesty, and share our mindset of becoming a global category leader.
 
 
 Our founding team consists of seasoned entrepreneurs who have previously built iconic businesses like HelloFresh, Bloomon, and SumUp. We combine that deep fintech and e-commerce expertise with cutting-edge AI to stay ahead of the curve.
 
 
 In this role, your mission is simple but demanding: to take ownership of a meaningful part of Insify&rsquo;s journey and deliver results that move the company forward.
 
 
 We're looking for a Software Engineer with 3+ years of experience to join the Billing team. You'll help design and build a scalable, multi-country billing platform: payment scheduling, invoicing, dunning, fees, taxes and reconciliation across legal entities, products and markets. You'll work shoulder-to-shoulder with product, finance, legal and our insurance carriers (Axeria, Hiscox, HDI, iptiQ, Chubb, Wakam). You'll own systems end-to-end, from the data model to production behaviour, and you'll be the engineer the rest of the company trusts when money is involved.
 
 
 
 What you'll be doing:
 
 
 
 <ul>
 <li>
 Build a billing platform that scales from two countries to six. Make the right abstractions now so adding a new market is a config change, not a rewrite
 </li>
 <li>
 Design and ship core billing capabilities: annual and monthly payment schedules, the Insify platform fee, VAT logic across jurisdictions, fee waiver rules, pro-rata refunds and renewals
 </li>
 <li>
 Own our dunning flow across Adyen (credit card) and Twikey (SEPA): failure classification, retries, settling checks, partial payments and country-specific legal compliance (NL 14-day statutory warning, FR mise en demeure, and whatever comes next)
 </li>
 <li>
 Build resilient integrations with payment, banking and tax providers, and keep them observable, secure and easy to swap out
 </li>
 <li>
 Handle multi-entity invoicing across Insify B.V., Insify Holding B.V., Insify NLD Agent B.V. and the entities we will add as we expand
 </li>
 <li>
 Partner with finance, legal and compliance to turn regulatory and accounting requirements into clean, testable systems. Be the engineer in the room who can credibly push back when something doesn't make sense
 </li>
 <li>
 Set the bar for engineering quality in the billing domain: idempotency, correctness, observability, recoverability. This is a domain where bugs cost real money
 </li>
 <li>
 Own incidents and operational health. When something breaks in billing, the business notices, and you'll be one of the people who fixes it
 
 
 
 
 </li>
 </ul>
 
 What you'll need:
 
 
 
 <ul>
 <li>
 3+ years of professional software engineering experience, ideally with TypeScript and AWS (Lambda, DynamoDB, event-driven architectures)
 </li>
 <li>
 A serious bar for correctness. You think in terms of edge cases, idempotency, consistency, retries, partial states and audit trails. You understand that "mostly works" is not acceptable when money moves
 </li>
 <li>
 Strong fundamentals in distributed systems, data modelling and API design. You can spot the abstraction that will hold up across five countries and four payment providers
 </li>
 <li>
 Comfort with complexity and ambiguity. Billing sits at the intersection of code, accounting, tax and law. You enjoy that instead of running from it
 </li>
 <li>
 Ownership instinct. You think of the system as yours, not as someone else's ticket queue
 </li>
 <li>
 Clear communicator. You can sit with finance, legal or a carrier and translate fuzzy requirements into a working system
 </li>
 <li>
 AI in your workflow. You actively use AI for coding, debugging and tooling to move faster
 
 
 
 
 </li>
 </ul>
 
 Nice to have:
 
 
 
 <ul>
 <li>
 Experience with payment providers (Adyen, Stripe, Mollie, Twikey or similar), SEPA and card payment flows
 </li>
 <li>
 Background in fintech, insurtech, billing, subscriptions or accounting systems at scale
 </li>
 <li>
 Experience expanding a product or platform into new countries, including localisation of payments, tax and invoicing
 </li>
 <li>
 Familiarity with VAT and multi-entity invoicing across EU markets
 </li>
 <li>
 Strong observability instincts (Sentry, Datadog) and a track record of operating
 
 
 
 
 </li>
 </ul>
 
 We offer:
 
 
 
 <ul>
 <li>
 Competitive compensation that reflects responsibility and impact. For mid-level engineer we have a range between 65-85k per year.
 </li>
 <li>
 Trust and autonomy: you&rsquo;ll have real ownership and room to make decisions Space to grow and shape your role as Insify evolves
 </li>
 <li>
 A steep learning curve, with support from experienced teammates
 </li>
 <li>
 The opportunity to share in what we&rsquo;re building, with equity for eligible roles once there&rsquo;s mutual conviction on fit and impact
 </li>
 <li>
 A welcoming, central Amsterdam HQ where we work closely together: shared lunches, dogs in the office, whiteboards, and fun end-of-week drinks
 </li>
 <li>
 An international, ambitious team that enjoys building meaningful things together
 
 
 </li>
 </ul>
</div>

Software Engineer, Payments Platform

Levy Professionals

<div>
 
 
 Senior Backend Engineer (Python / Azure)
 
 
 
 We are looking for a Senior Backend Engineer to join the team. In this role, you will contribute to the development and maintenance of custom-built case management applications used by internal stakeholders. These applications are fully developed and maintained in-house and operate entirely within the Azure cloud environment.
 
 
 You will work within the Back-End chapter as part of a larger multidisciplinary Scrum team consisting of both Backend and Frontend engineers. Although the team is relatively large, work is organised in smaller sub-teams on a quarterly basis to ensure focus, ownership, and effective collaboration.
 
 
 
 
 
 
 Responsibilities
 
 
 <ul>
 <li>
 Design, develop, and maintain scalable backend services and
 
 RESTful APIs
 
 </li>
 <li>
 Define and maintain clear API contracts and specifications
 </li>
 <li>
 Build integration components and backend services using Python
 </li>
 <li>
 Work with frameworks and tooling such as
 
 FastAPI, Pydantic, and Pytest
 
 </li>
 <li>
 Design and maintain database schemas aligned with application requirements
 </li>
 <li>
 Write efficient and scalable database queries
 </li>
 <li>
 Deploy, configure, and operate services within Azure cloud environments
 </li>
 <li>
 Participate actively in Scrum ceremonies, refinements, and user story discussions
 </li>
 <li>
 Contribute to code reviews with a coaching and constructive mindset
 </li>
 <li>
 Collaborate closely with engineers, stakeholders, and other chapters to deliver valuable solutions
 </li>
 </ul>
 
 
 
 
 
 What We're Looking For
 
 
 
 
 Backend Development
 
 
 <ul>
 <li>
 Strong experience with Python backend development
 </li>
 <li>
 Experience designing and developing RESTful APIs
 </li>
 <li>
 Hands-on experience with
 
 FastAPI, Pydantic, and Pytest
 
 </li>
 <li>
 Solid understanding of backend architecture and integration patterns
 </li>
 </ul>
 
 Data &amp; Persistence
 
 <ul>
 <li>
 Experience designing and maintaining database schemas
 </li>
 <li>
 Ability to write efficient and scalable complex queries
 </li>
 </ul>
 
 Cloud &amp; Infrastructure
 
 <ul>
 <li>
 Experience with Azure or other cloud platforms
 </li>
 <li>
 Understanding of deploying and operating backend services in cloud environments
 </li>
 </ul>
 
 
 
 
 
 Nice to Have - AI-Assisted Development
 
 
 
 Experience with AI-assisted development tools and structured AI workflows is considered a strong plus. This includes:
 
 <ul>
 <li>
 Working with tools such as GitHub Copilot
 </li>
 <li>
 Creating reusable prompts, templates, and repository-level AI instructions
 </li>
 <li>
 Embedding team standards and architectural decisions into AI-assisted workflows
 </li>
 <li>
 Critically evaluating AI-generated output for quality, maintainability, and security
 </li>
 <li>
 Helping scale structured AI usage across engineering teams
 </li>
 </ul>
 
 
 
 
 
 Team Environment
 
 
 
 You will join a collaborative engineering environment where ownership, knowledge sharing, and continuous improvement are highly valued. The team values pragmatic engineers who combine technical depth with strong communication and product awareness.
 
 
 
 
 
 About Levy Professionals
 
 
 Since 2000, Levy Professionals has been connecting skilled professionals with impactful projects across technology, banking, finance, and digital transformation. From our offices in Amsterdam and London, we have built a strong international network of employed professionals and contractors, supporting both global organisations and innovative scale-ups.
 
 
 With over 1,700 successful placements and more than 250 professionals currently active across projects in 14 countries, we combine market expertise with a personal approach. Our strength lies in understanding both our clients' challenges and our candidates' ambitions, enabling us to create long-term successful matches built on quality, trust, and collaboration.
 
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Senior Python Backend Engineer

Explore 199+ Back end engineer in Amsterdam this July. Find roles across top companies and apply now to boost your career.

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Senior Python Backend Engineer