founding engineer

Bite Engineering

<div><h1 class="jobSectionHeader">Founding Engineer</h1> 
London (hybrid, 3 days in office) &middot; Full-time &middot; Competitive salary + early-team equity
Join Bite as one of our first engineers. You'll ship across the full stack to paying customers, work directly with the founders, and own real pieces of the knowledge graph that powers everything we build.<h2 class="jobSectionHeader"> 
Why this role is interesting</h2>
The problem is genuinely hard. When a structural engineer changes Column C7 in their analysis model, the same column exists in drawings, schedules, specs and emails under different names, in different formats, with no shared identifier. Resolving those references into one canonical entity, and telling the engineer exactly what just went out of date, is the core of our product. You'll build on and extend that foundation.
Your work ships to people who pay. The platform is in production with signed design partners including some of the UK's leading structural engineering firms. Features go from your branch into the hands of working engineers within days, and you'll hear directly what landed and what didn't.
You'll work on the whole product, not a slice of it. We're a small team and we run one focused thing at a time. You'll take features from a conversation with a customer through design, implementation, tests and deployment. No ticket factory, no waiting on three other teams.<h2 class="jobSectionHeader"> 
What we're building</h2>
Structural engineers work across a fragmented set of tools with no shared source of truth: ETABS models, SAFE analyses, Autodesk drawings, Excel specs, PDFs, emails. When a design changes, propagating that change across files is manual, slow and error-prone, and the errors are expensive.
Bite is the change management and audit trail layer for structural engineering. The platform does two things that today take weeks of manual work: natural-language search across a project's entire file ecosystem, and cross-file impact detection. Both run on a single engineering knowledge graph built on content-addressed file storage, per-file structured extraction, and a canonical entity resolver that unifies concepts across file formats.
The timing matters too. The Building Safety Act now requires firms to evidence their design decisions, and directors carry personal liability for it. We are building the system of record for that.<h2 class="jobSectionHeader"> 
What a typical week looks like</h2><ul><li>
Ship a feature end to end: a Node/TypeScript API change, the React frontend that exposes it, and the tests that prove it works.</li><li>
Pair with El-Amin (our CTO, a former practising structural engineer) on how engineers actually think about a column, a load path, or a revision, then encode that into the data model.</li><li>
Improve extraction or retrieval quality in the Python ML/RAG workers and measure whether it actually got better.</li><li>
Sit in on a design partner call and watch a structural engineer use what you built last week.</li><li>
Make a pragmatic call on tech debt with the team: what we fix now, what we log, and why.</li></ul>
You don't need to be expert in every layer. The stack is polyglot by design (TypeScript, Python, React, C#/WPF, Azure) and we care about strong core engineering far more than specific tools.<h2 class="jobSectionHeader"> 
Product sense is not optional</h2>
AI now writes a meaningful share of the code. What it can't do is decide what's worth building, notice that a feature solves the wrong problem, or sense that a structural engineer will never click that button. We don't have a layer of product managers between you and the customer, and we don't plan to. Every engineer here exercises product judgement daily. If you've ever been frustrated that nobody asked you what should be built, this is the antidote.<h2 class="jobSectionHeader"> 
How you'll grow</h2>
You'll learn an entire vertical: how structural engineering firms work, how AEC data formats behave, and how to build LLM/RAG systems that hold up in production. You'll work directly with our VP of Engineering and CTO, and as the team grows around you there's a clear path to owning a domain, leading projects, and eventually mentoring the engineers who come after you.<h2 class="jobSectionHeader"> 
What we're looking for</h2><ul><li>
5+ years of experience with a track record of shipping and owning production systems.</li><li>
Strong backend experience, ideally Node.js/TypeScript or Python in a production context, and comfortable reading across other languages (C#, Python or TypeScript).</li><li>
Working knowledge of distributed systems fundamentals: async queues, event-driven workflows.</li><li>
The instinct to keep things simple under pressure, and the judgement to know when a tactical shortcut is right and when it isn't.</li><li>
Genuine product sense. You think about the user before you think about the implementation.</li><li>
Clear communication. We move between deeply technical, semi-technical and plain-language conversations every day, and we value clarity above speed.</li><li>
Kindness, curiosity, optimism and drive. We believe in being kind over being nice, we give and receive constructive feedback constantly, and we're building something bigger than ourselves.</li></ul><h2 class="jobSectionHeader"> 
What will make you stand out</h2><ul><li>
LLM/RAG pipelines in production: embeddings, vector search, retrieval quality measurement.</li><li>
Graph-based data models, entity resolution, or knowledge graph tooling.</li><li>
Autodesk Platform Services or AEC data formats (IFC, Revit, ETABS, SAFE or similar).</li><li>
Windows desktop development (.NET / WPF / native integrations).</li><li>
Background in construction, structural engineering software, or document-intensive vertical SaaS.</li></ul>
Don't rule yourself out over the stack. We're looking for strong engineers with sound principles. Technologies are tools.<h2 class="jobSectionHeader"> 
How we work</h2>
We believe in thorough automated testing. Not strict TDD, but every PR ships with the appropriate E2E tests, unit tests or eval harnesses. We own the entire platform, including deployment and reliability, so we control our own CI and CD. The team is autonomous, multi-disciplinary and empowered.<h2 class="jobSectionHeader"> 
The process</h2>
We respect your time and move fast. You'll hear from us quickly after every stage, and the process is as much about you assessing us as the reverse. Ask us anything.<ul><li>
Initial screening call (15 mins)</li><li>
Technical conversation with our VP of Engineering, walking through some of your code (30 mins)</li><li>
Pairing session with the team (1&ndash;2 hours)</li><li>
Reference checks and offer</li></ul><h2 class="jobSectionHeader"> 
About Bite</h2>
Bite Engineering is an Equal Employment Employer and does not discriminate on the basis of race, colour, religion, sex, sexual orientation, gender identity, national origin, disability, or any other legally protected status. We want people from all walks of life to feel valued for their individuality, thrive in our business and share a sense of belonging. If you have a disability or special need that requires accommodation, let us know.</div>

Founding Engineer

David Joseph & Company

<div><h2 class="jobSectionHeader">Founding Engineer &mdash; Confidential (AI Startup, YC/a16z-Backed)</h2>
Location: San Francisco, CA (Onsite, 5 days/week) 
Compensation: $180,000 &ndash; $225,000 base + 1.0% &ndash; 1.5% equity 
Visa Sponsorship: Available &mdash; visa transfers supported | Relocation support available 
Employment Type: Full-Time<h3 class="jobSectionHeader">
About the Company</h3>
A well-funded AI startup building a new paradigm for software creation &mdash; using AI agents to autonomously create and operate specialized software products at scale. Founded in 2026, the company has raised $5.5M from a16z and other top-tier investors and is building out its founding engineering team of 5&ndash;7 engineers. The founding team has previously scaled companies to $20M ARR.<h3 class="jobSectionHeader">
The Role</h3>
This is a founding engineering role for a generalist full-stack engineer who loves building from zero. You will ship micro apps weekly to real users, encode your processes into increasingly automated workflows, and run rapid experiments with the founding team. All engineers report directly to the founder and CEO.<h3 class="jobSectionHeader">
What You'll Own</h3><ul><li>
Build and ship micro apps every week with real users, encoding your processes into increasingly automated workflows</li><li>
Work in close collaboration with the founding team</li><li>
Run rapid experiments and decisively double down on what works while cutting what doesn't</li></ul>
Tech stack: Full-stack, AI &mdash; Python, JavaScript, Kotlin, Go (flexible on language)<h3 class="jobSectionHeader">
Requirements</h3><ul><li>
1&ndash;5 years of software engineering experience building AI-driven products</li><li>
Experience shipping products or features from ideation to real users with significant traction</li><li>
Proficiency in agentic development &mdash; designing and building orchestration pipelines across multiple agents, tools, and services</li><li>
Full-stack proficiency with a backend focus</li><li>
Active user of modern AI tooling (e.g. Claude Code, Cursor, or similar)</li><li>
At least one clear signal of excellence &mdash; hackathon wins, side projects with significant traction, impressive fellowships, YC founder background, etc.</li><li>
Bachelor's degree in Computer Science or a related technical field</li><li>
Must be based in or willing to relocate to San Francisco</li></ul><h3 class="jobSectionHeader">
Preferred</h3><ul><li>
Previous founder or early-stage startup experience &mdash; YC or a16z alum backgrounds a strong plus</li><li>
Degree from a top-tier university (Berkeley, Stanford, CMU, or equivalent)</li></ul><h3 class="jobSectionHeader">
This Role Is NOT For</h3><ul><li>
Pretraining or fine-tuning ML researchers &mdash; this is applied agentic engineering, not model training</li><li>
Pure Big Tech careers with no side project, startup, or scrappy chapter</li><li>
Candidates with a pattern of short tenures across multiple companies</li></ul><h3 class="jobSectionHeader">
Interview Process</h3><ul><li>
Application review</li><li>
Intro screen (45 min) &mdash; technical depth, past projects, judgment, and founder fit</li><li>
Pair coding session (60 min) &mdash; live coding, no AI tools; CS fundamentals and algorithmic reasoning</li><li>
Onsite (~4 hours) &mdash; agentic coding session, system design, and behavioral/founder-fit conversation</li><li>
Offer</li></ul><h3 class="jobSectionHeader">
Logistics</h3><ul><li>
Role is fully onsite in San Francisco (SoMa) &mdash; 5 days/week</li><li>
Relocation support available</li><li>
Visa sponsorship available</li></ul>
Shortlisted candidates will be contacted by David Joseph &amp; Co., the recruiting partner managing this search.</div>

Founding Engineer — Confidential

Stealth AI startup

<div><h2 class="jobSectionHeader">The Opportunity</h2>
We are a seed-stage AI startup, currently in stealth, backed by top-tier VCs. We are hiring for a founding engineer for the role of a Product Architect (Sr PE/PE level). This is a rare kind of role. You will architect a platform from early stages, and play a part in building out the company itself: how we build, how we work together, and what we value as an organization. We are building a high-trust, high-standards team of exceptional builders who want to move fast, go deep, own outcomes, invent better ways to create unmistakable customer value and ultimately drive business and personal success.<h2 class="jobSectionHeader">
What We're Building</h2>
Our north star is to help companies of all sizes build, deploy and manage AI applications in a seamless, efficient and cost-effective way. We believe that more and more enterprises and AI startups will build their own application-specific AI models in order to own major portions of their application stack, build on their IP position and optimize for performance and costs. For these companies, models, weights, and data are becoming the strategic moat. But moving from experimentation to production remains slow and messy: fragmented tooling, mounting infrastructure complexity, and significant engineering time lost to security, access, and compliance work instead of innovation.
Our core value proposition is simple. We help product and engineering teams move faster with building and integrating AI models into their applications, with high confidence and trust. The platform is designed to be deployed in a customer&rsquo;s existing environments, ranging from public clouds, on-prem, and hybrid environments. We will share the full picture, including our product, early traction, and roadmap, in our first conversation.<h2 class="jobSectionHeader">
Why This Role Is Different</h2>
You are building the thing, not inheriting it. As a founding engineer, you will make the architectural decisions everything else gets built on: the core platform, the technology stack, and the engineering culture. There is no legacy codebase and no committee.
The equity is real. The pace of progress in AI has created a once-in-a-lifetime window, and where you spend the next few years matters more than it ever has. You can spend them at a big tech where you are a line item in a headcount plan, doing your best work under the constant pressure of the next layoff cycle while someone else captures the upside. Or you can spend them as a founding engineer with meaningful equity in what you build.
You will work directly with a founder who has done this at scale. Our CEO has nearly two decades of experience building and scaling AI infrastructure businesses. He scaled a business from about $100M into a multi-billion-dollar segment at a leading cloud provider, and served as Chief Product Officer of a company he helped take public, now valued at over $50B. He leads by example, stays hands-on, and invests heavily in developing people and helping them do the best work of their careers.
The timing is now. Enterprise AI is crossing from experimentation into production right now, and the infrastructure layer underneath it is being decided. The companies that define that layer will be built in the next few years, by small teams that move fast.<h2 class="jobSectionHeader">
What You'll Do</h2>
This is a hands-on building role. You will report to the CEO and act as the technical lead for the product platform. We expect roughly 60% of your time on product development, with the rest split between product research and direct customer &amp; partner engagement.<ul><li>
Own the end-to-end architecture of a new platform, from core distributed systems to the services and workflows customers touch.</li><li>
Design, build, and operate production-grade systems that run across public cloud, on-prem, and hybrid environments.</li><li>
Make the foundational technical bets: languages, frameworks, infrastructure, and architecture, and revisit them pragmatically as we learn.</li><li>
Work directly with early customers to turn real-world requirements into platform capabilities.</li><li>
Use AI-driven development workflows (Claude Code, Cursor, or equivalent) as a daily multiplier on velocity and quality.</li><li>
Set the bar for engineering excellence, and mentor other engineers as the team grows.</li></ul><h2 class="jobSectionHeader">
What We're Looking For</h2>
We are hiring across Principal (L7 equivalent) and Senior Principal (L8 equivalent) levels. The scope is the same. The difference is depth of experience and the size of the architectural bets you have owned.<ul><li>
12+ years of total builder experience, with hands-on experience building large-scale distributed systems with high availability, and a track record of shipping and operating production software.</li><li>
Deep expertise in cloud-native platforms: Kubernetes, containerized workloads, service-oriented architectures, and infrastructure-as-code (Terraform, Pulumi, or similar) across AWS, Azure, or GCP.</li><li>
Strong systems fundamentals: API design, backend architecture, performance, and reliability.</li><li>
Strong programming proficiency in Rust or C++, with experience writing performant production-grade code.</li><li>
High ownership and bias for action in 0-to-1 environments. You are comfortable making pragmatic trade-offs, operating with incomplete information, and driving projects from idea through launch and adoption.</li><li>
Excellent communication. You can work directly with customers, debate architecture on the merits, and bring others along.</li></ul><h2 class="jobSectionHeader">
Strong Pluses</h2><ul><li>
Experience building customer-facing, large-scale distributed systems and applications: production software that real users and enterprises depend on.</li><li>
Experience building and deploying solutions across multi-cloud and on-prem environments.</li><li>
Experience with AI/ML infrastructure, including training, inference, or the platforms and pipelines around them.</li><li>
Familiarity with security domains such as identity, access control, key management, or trusted computing.</li><li>
Experience building enterprise software that runs in customer-managed environments.</li><li>
Prior startup or early-stage experience, or a big-company background and strong conviction that it is time for something different.</li></ul><h2 class="jobSectionHeader">
What We Offer</h2><ul><li>
Founding-team equity with meaningful upside.</li><li>
Competitive cash compensation, calibrated for seed stage.</li><li>
A direct hand in defining the product, the architecture, and the culture.</li><li>
Opportunity to be part of a fast-paced environment that values distinctive expertise, emphasizes ownership along with high standards, and fosters open-minded collaboration with exceptional builders.</li><li>
A founder committed to your growth, and a front-row seat to building a company.</li></ul></div>

Founding Engineer - Product Architect

<div><h2 class="jobSectionHeader">The Opportunity</h2>
We are a seed-stage AI startup, currently in stealth, backed by top-tier VCs. We are hiring for a founding engineer for the role of a Product Architect (Sr PE/PE level). This is a rare kind of role. You will own major parts of the platform from early stages, and play a part in building out the company itself: how we build, how we work together, and what we value as an organization. We are building a high-trust, high-standards team of exceptional builders who want to move fast, go deep, own outcomes, invent better ways to create unmistakable customer value and ultimately drive business and personal success.<h2 class="jobSectionHeader">
What We're Building</h2>
Our north star is to help companies of all sizes build, deploy and manage AI applications in a seamless, efficient and cost-effective way. We believe that more and more enterprises and AI startups will build their own application-specific AI models in order to own major portions of their application stack, build on their IP position and optimize for performance and costs. For these companies, models, weights, and data are becoming the strategic moat. But moving from experimentation to production remains slow and messy: fragmented tooling, mounting infrastructure complexity, and significant engineering time lost to security, access, and compliance work instead of innovation.
Our core value proposition is simple. We help product and engineering teams move faster with building and integrating AI models into their applications, with high confidence and trust. The platform is designed to be deployed in a customer&rsquo;s existing environments, ranging from public clouds, on-prem, and hybrid environments. We will share the full picture, including our product, early traction, and roadmap, in our first conversation.<h2 class="jobSectionHeader">
Why This Role Is Different</h2>
You are building the thing, not inheriting it. As a founding engineer, you will make the architectural decisions everything else gets built on: the core platform, the technology stack, and the engineering culture. There is no legacy codebase and no committee.
The equity is real. The pace of progress in AI has created a once-in-a-lifetime window, and where you spend the next few years matters more than it ever has. You can spend them at a big tech where you are a line item in a headcount plan, doing your best work under the constant pressure of the next layoff cycle while someone else captures the upside. Or you can spend them as a founding engineer with meaningful equity in what you build.
You will work directly with a founder who has done this at scale. Our CEO has nearly two decades of experience building and scaling AI infrastructure businesses. He scaled a business from about $100M into a multi-billion-dollar segment at a leading cloud provider, and served as Chief Product Officer of a company he helped take public, now valued at over $50B. He leads by example, stays hands-on, and invests heavily in developing people and helping them do the best work of their careers.
The timing is now. Enterprise AI is crossing from experimentation into production right now, and the infrastructure layer underneath it is being decided. The companies that define that layer will be built in the next few years, by small teams that move fast.<h2 class="jobSectionHeader">
What You'll Do</h2>
This is a hands-on building role. You will report to the CEO and collaborate closely with our founding Product Architect on the product platform. We expect roughly 80% of your time on product development, with the rest split between product research and direct customer support.<ul><li>
Design, build, test, and operate production-grade features and services.</li><li>
Build and run systems that deploy across public cloud, on-prem, and hybrid environments.</li><li>
Contribute to architecture and technical decisions, partnering with the Product Architects on the bets that shape the platform.</li><li>
Take part in product research: prototyping new approaches and evaluating emerging tools and techniques.</li><li>
Work directly with early customers to turn real-world requirements into working capabilities and to support them in production.</li><li>
Use AI-driven development workflows (Claude Code, Cursor, or equivalent) as a daily multiplier on velocity and quality.</li><li>
Help set the bar for engineering quality and craft as the team grows.</li></ul><h3 class="jobSectionHeader">
What We're Looking For</h3>
We are hiring across Senior (L5 equivalent) and Staff (L6 equivalent) levels. The work is the same. The difference is depth of experience and the scope of the systems you have built and owned.<ul><li>
5+ years of hands-on engineering experience building and shipping production software, with a track record of maintaining it in production.</li><li>
Experience building distributed systems, backend services, or infrastructure platforms with an eye for reliability and performance.</li><li>
Working knowledge of cloud-native technologies: Kubernetes, containerized workloads, service-oriented architectures, and infrastructure-as-code (Terraform, Pulumi, or similar) across AWS, Azure, or GCP.</li><li>
Strong systems fundamentals: API design, backend architecture, performance, and reliability.</li><li>
Strong programming proficiency in Rust or C++, with experience writing performant production grade code.</li><li>
High ownership and bias for action in 0-to-1 environments. You are comfortable making pragmatic trade-offs, operating with incomplete information, and driving work from idea through launch.</li><li>
Excellent communication. You can work directly with customers, discuss trade-offs on the merits, and collaborate closely with a small team.</li></ul><h3 class="jobSectionHeader">
Strong Pluses</h3><ul><li>
Experience building customer-facing, large-scale distributed systems and applications: production software that real users and enterprises depend on.</li><li>
Experience building and deploying solutions across multi-cloud and on-prem environments.</li><li>
Experience with AI/ML infrastructure, including training, inference, or the platforms and pipelines around them.</li><li>
Familiarity with security domains such as identity, access control, key management, or trusted computing.</li><li>
Prior startup or early-stage experience, or a big-company background and strong conviction that it is time for something different.</li></ul><h2 class="jobSectionHeader">
What We Offer</h2><ul><li>
Founding-team equity with meaningful upside.</li><li>
Competitive cash compensation, calibrated for seed stage.</li><li>
A direct hand in defining the product, the architecture, and the culture.</li><li>
Opportunity to be part of a fast-paced environment that values distinctive expertise, emphasizes ownership along with high standards, and fosters open-minded collaboration with exceptional builders.</li><li>
A founder committed to your growth, and a front-row seat to building a company.</li></ul></div>

Founding Engineer - Full Stack

Skalar

<div><h1 class="jobSectionHeader">TL;DR
</h1>Founding Engineer. 
Build v1 -&gt; v10. Join the early core team of experienced entrepreneurs (scaled to millions of users, $100m+ exits). Build the future of tax &amp; accounting with AI. Ship features end-to-end, influence the stack, and lay the foundations for scale. Grow into leadership as we expand across countries. Above-market pay + meaningful equity.<h2 class="jobSectionHeader">
The opportunity</h2>
How taxation, accounting and payroll work today is a pain for everyone. Still every business must do it continuously. It is the backbone that our economy runs on. 
 
Enabled through AI, we are turning this often-painful process into a radically simple experience for our customers, so they can focus on what matters to them: growing their business.<h2 class="jobSectionHeader">
About us</h2>
We are a team of experienced entrepreneurs who have scaled businesses to 10s of millions of users, 10s of millions in revenue, multiple countries, and 9-digit exits - and we are just getting started. We are backed by leading venture investors and expanding rapidly.<h2 class="jobSectionHeader">
The role</h2>
As an early Founding Engineer, you&rsquo;ll be a core part of building and scaling Skalar. We are past the initial founding phase, but we are still very very early - meaning pretty much everything you touch will be greenfield building.
While we are providing a world-class professional service to our customers, technology is at our core and you will be an integral part of building it from scratch. Your work will be the driving force behind our revolutionary customer experience, enabled through AI, offering radical simplicity to our customers.<h2 class="jobSectionHeader">
What you&rsquo;ll own</h2><ul><li>
Build 0 1 and beyond with the founders: ship major features and product lines end-to-end (spec ship measure).</li><li>
Core Architecture: Implement core APIs, data models, and UI; make pragmatic architecture choices with high autonomy.</li><li>
Iterate fast: Ship v1 fast, iterate weekly with real user feedback.</li><li>
Leadership: Hire and mentor junior engineers (if interested); gain leadership experience as we grow.</li></ul><h2 class="jobSectionHeader">
Our tech context (greenfield)</h2><ul><li>
Prefer boring tech where it matters; innovate where it differentiates.</li><li>
Current stack (continually evolving): TypeScript, Next.js (React), PostgreSQL, Vercel, ...</li><li>
You&rsquo;ll have a strong influence on tech and product choices.</li><li>
Tooling budget for whatever makes you fast. No legacy, no yak‑shaving.</li></ul><h2 class="jobSectionHeader">
What you&rsquo;ll bring</h2><ul><li>
5+ years of professional experience building web applications with modern frameworks (such as Next, React, Vue, Node, FastAPI or Tailwind)</li><li>
A bachelor&rsquo;s or master&rsquo;s degree in computer science or a related field</li><li>
You have worked in a cross-functional team setup, are product-minded and like working in an agile startup environment</li><li>
You have an eye for detail and your focus is on the frontend, but you are also curious about the backend</li><li>
You have experience in deploying applications using containerization and orchestration tools (such as Docker)</li><li>
You have integrated AI already deeply into your daily coding tasks and don&rsquo;t just use it for autocompletion</li><li>
Very good written and verbal communication skills in English (min. C1), German is a plus</li><li>
You have a valid work permit to work in Germany</li></ul><h2 class="jobSectionHeader">
What you&rsquo;ll get</h2><ul><li>
Unique opportunity to join a company very early which you can shape</li><li>
Rapid growth path: Grow your career with the growing company</li><li>
Perfect environment to develop relevant skills in a world of AI</li><li>
Above-market compensation + Equity package, that has the potential to drastically gain in value</li></ul><h2 class="jobSectionHeader">
The process (fast, meaningful, no homework)</h2><ul><li>
Jump on an intro call with a recruiter</li><li>
Get to know a fellow engineer, virtually or in person (up to you)</li><li>
Meet our whole founding team during a final interview (in-person, ~3h, incl. live coding)</li></ul></div>

Founding Engineer (w/m/d)

Tracebit

<div>Our product helps security teams quickly and accurately detect intrusions in their cloud environment using canaries - decoy tripwires deployed to deceive attackers.
We're at a massive inflection point and this is a hugely exciting time to join the company:<ul><li>
We've just raised a $20m Series A led by FirstMark with Accel, MMC, Tapestry and CCL.</li><li>
We doubled ARR last quarter, work with companies like Riot Games, Docker and Snyk, and have grown from 5 people to 26 in 18 months.</li><li>
Our research recently helped fix a P1 security flaw in Google's Gemini CLI.</li></ul>
We&rsquo;re looking for someone who&hellip;<ul><li>
Is genuinely interested in technology and cyber security, and keen to build a career in it.</li><li>
Has a strong academic foundation - an undergraduate or/and master's degree, ideally in a STEM subject like computer science, engineering, maths, physics&hellip; and has demonstrated real academic excellence.</li><li>
Has strong engineering fundamentals and a real appetite to learn - can write clean, correct code in a known language, and is genuinely curious about how things work under the hood.</li><li>
Has built things they're proud of - side projects, open source, hackathons&hellip; And is excited by the pace and rate of change that is inevitable in any successful, early stage startup.</li><li>
Gets their energy from getting things done and in the hands of customers but is also here to have fun along the way!</li></ul>
If you don&rsquo;t fit this bill exactly but think you could make a difference here - please, apply!
Role
Reporting to Niall, our Engineering Lead, and with significant exposure to our CTO and Co-Founder, Sam, you&rsquo;ll join a team of other awesome engineers looking to make their mark on the world.
This includes:<ul><li>
Working face to face with both founders, the whole engineering team and our customers and prospects to build a delightful product that solves real problems.</li><li>
Working across the stack, mostly in C# on .NET Core 10 (here's why), but also Terraform and building out our frontend in HTMX.</li><li>
All the good practices you&rsquo;d expect from technical co-founders who&rsquo;ve done this before (CD, Infrastructure as code, simple but scalable and powerful architecture)</li><li>
We&rsquo;re a small, tight team with demanding customers so expect to be shipping every day with very little bureaucracy.</li><li>
We actively encourage AI-assisted development and give every engineer full access to tools like Claude and Codex.</li><li>
We&rsquo;re based in a Central London office and work here 5 days a week (and everyone we hire will too).</li></ul><h2 class="jobSectionHeader">
FAQs</h2>
How is work organised at Tracebit?
It&rsquo;s a small, tight team - we have a standup everyday, each team member is usually responsible for delivering something reasonably large for customers and we meet every few weeks to talk about longer term plans. Between that - there&rsquo;s a tonne of discussions, customer feedback and analysis, but not a huge amount of process, the team is trusted to prioritise where to spend their time.
Where is the office?
The whole team works together in an office right next to Warren Street tube station - there are lots of great places to grab lunch nearby.
Are you doing hybrid/remote?
&zwj;Short answer: No, but flexible on a day to day basis.
Long answer: We are set on building the company on a foundation of an office based culture. We are a very early stage company and think that we&rsquo;ll build the best company at the fastest pace we can whilst also having a lot of fun by physically working together 5 days a week. On a case by case basis (e.g. leaving early for a holiday, staying home for a builder, working remote for a few days to visit family, etc. etc.) we&rsquo;re very reasonable and flexible. We respect that this is not for everyone.
&zwj;What are the working hours like?
&zwj;We think 9am-6pm will bring a great cadence to work. As a Founding Engineer there will definitely be times you need to pick up work outside of these hours, we&rsquo;re keen to limit this where we can but also offer flexibility in return.
Can you sponsor visas?
We can support various types of working visas in the UK, including:<ul><li>
Skilled Worker Visa (both from within and outside the UK)</li><li>
Intra-Company Transfer Visa</li><li>
Graduate Visa Transition</li></ul>
We are keen to support candidates who require visa sponsorship. Please let us know which specific visa type you might need during the initial application or interview process. Our team is committed to helping talented individuals navigate the necessary visa requirements.
Compensation Range: &pound;50K - &pound;70K</div>

Founding Engineer - Early Careers

Voxquill

<div>I'm looking for our founding engineer!
 
The person who takes a live, paying fintech product and makes it truly ours.
We build receipt-and-proof automation for the self-employed: the app quietly finds your receipts (email, bank feeds, camera roll, texts), sorts them, matches them to your bank transactions, and produces accountant-ready exports. It's live on iOS and Android, it's SOC 2 certified, and people are paying for it. The model works.
I need one person who treats this codebase as theirs, ships fast, and owns the platform end-to-end. This is a founding engineer role with a real path to CTO.
Your first job is to take the keys.
 
Move the platform off the agency's Azure into ours, take custody of production, and the headline deliverable.
 
Build the automated test suite this codebase never had, with a CI/CD pipeline where a green build genuinely means &quot;safe to ship.&quot; Then you own the roadmap.
How we build matters as much as what we build.
 
We are not rebuilding an IT shop of tickets and manual QA.
 
Terrapin runs as an AI-native pod: Claude Code and agents do the repetitive work and produce tested, PR-ready changes; you own architecture, review, security, and the hard 20%.
 
AI gives you the velocity, your tests and pipeline are what keep that velocity from turning into breakage!
We want to ship multiple times a week and almost never break anything, and hold our SOC 2 line the whole way. If that model excites you rather than worries you, you're the person.
This is genuinely full-stack.
 
Strong .NET / C# backend on Azure, real ownership of infra, security, and DevOps, and polished mobile (React Native + Expo, iOS and Android); Because the app is the product. Testing isn't someone else's job here. It's the core discipline.
The kind of person whose teammates would describe as:<ul><li>
an owner, not a ticket-taker</li><li>
obsessive about shipping quality fast</li><li>
calm owning production for a product with real money moving through it</li><li>
someone who builds automation instead of doing the same thing twice</li><li>
security-minded by instinct, not as an afterthought</li></ul>
What you'd bring:<ul><li>
Senior+ .NET / C# backend, PostgreSQL, solid API design</li><li>
Real Azure ownership: App Services, networking, Key Vault, identity, CI/CD (Azure DevOps or similar)</li><li>
Strong React Native + Expo mobile, with genuine UI/UX taste</li><li>
Test automation and CI/CD as a way of life &mdash; you write the tests with the code</li><li>
Hands-on building with Claude Code / agent tooling, and doing it safely in a SOC 2 world</li></ul>
Bonus points: fintech / payments background, Plaid experience, or applied LLM work.
And the reason the right engineer will actually stay: receipts are just the wedge. We're building toward a verifiable, tamper-evident record of an economic event. Proof that banks, insurers, and AI agents can consume directly. Stripe is a payment rails. We're building proof rails.
You'd work directly with me every day &mdash; 18+ years in fintech and payments, two exits behind me &mdash; so you own the engineering but never carry the hard architecture, security, or product calls alone.
The details:
 
UK or EU-remote(temporarily), with solid overlap to UK hours and business trips.
We're genuinely open to strong candidates across both. Being open to relocating to the UK down the line is a plus, but not a day-one requirement.
 
Competitive base plus real founding-level equity.
One hard line: you build quality in through tests and CI/CD. We're deliberately leaving the manual-testing, hope-it-works world behind, and a dev who treats testing as optional isn't the hire. Everything else, we can talk about.
If you want founder-level ownership, a CTO trajectory, and an AI-native way of building, and owning a live fintech platform from week one lights you up, let's talk.
Apply and tell me about something you shipped that you're proud of, and one thing you broke and how you made sure it never happened again.</div>

Founding Engineer (Full Stack); Patch to CTO

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