SENIOR FULL-STACK DEVELOPER

Who are we? Fuelfinance is on a mission to revolutionize financial management for early-stage startups, empowering them to take control of their finances and thrive. We recently raised $1M in Seed Funding from top-tier investors like Markus Villig (Bolt), John S. Kim (SendBird), Stratmind, and Bad Ideas funds, following 3 years of profitable, bootstrapped success. Trusted by businesses with over $200M in P&L, including Reface, Petcube, and Hampton, we've built a universal tool that brings clarity and insight to finance management. With 38% of startups failing due to cash flow issues, our goal is to prevent these failures and unlock trillions in GDP growth. At Fuelfinance, we're not just creating software — we're safeguarding the future of thousands of startups. Join us and be part of this impact! fuelfinance.me www.instagram.com/fuelfinance youtu.be/eI5VH2Ks9o4 Who are we searching for? We're looking for a Senior Full-Stack Developer to help build the next generation of our product: AI-powered finance agents that automate financial workflows for startups and SMBs. You'll join at the moment this transition is happening — the work is greenfield, fast-moving, and shipped to real paying customers. You'll own features end-to-end across the stack, from architecture decisions to production monitoring, and build with AI as your default workflow. This isn't a role for someone who waits for tickets; it's for an engineer who spots problems, proposes solutions, and ships. The team You'll join a team of 4 engineers, 1 QA, and a Product Owner, reporting to the Head of Engineering. What will you build? • AI finance agents: forecasting, financial analytics, automated workflows • MCP infrastructure and the agent orchestration layer • Integrations with accounting platforms, banks, and payment systems (QuickBooks, Xero, Stripe) • Dashboards, access controls, and reporting infrastructure What are your responsibilities? • Design, build, and own features end-to-end across the stack — from architecture decisions to production monitoring • Build with AI as your default workflow : agentic coding tools with proper codebase context and end-to-end test verification • Develop agentic AI workflows : LLM-powered features with proper context management, tool use, and automated end-to-end testing • Make pragmatic technology choices and defend them — weighing cost, speed, and long-term maintainability • Identify problems and propose solutions before they're assigned to you • Keep security and data integrity at the core of everything • Estimate, communicate risks early, and ship fast without cutting corners that matter What are the preferred requirements for the role? • 6+ years of software engineering experience with real depth • Proficiency with AI-assisted development (a must) — not just chat-based usage: you know how to build agentic coding workflows, feed the right codebase context to models, and verify AI output with end-to-end testing • Proficiency in both frontend and backend development • TypeScript, Node.js (Nest.js), React • SQL, MongoDB • AWS knowledge • B2/C1 English level • Experience enhancing system and infrastructure security • Proactive approach • Comfortable with startup mode : shifting priorities, fast pace, high ownership Will be a plus: • Experience with LLM APIs in production (Anthropic, OpenAI), RAG • Fintech background or experience on security-focused projects • Knowledge of one of the following: C#, Java, Go, Python • Early-stage startup experience • Experience with infrastructure setup This role won't fit if: • You wait for clarity instead of creating it • AI tooling is something you've read about rather than used daily • You prefer a stable roadmap over shifting priorities and high ownership Recruitment Process: • Soft skills interview with the recruiter • System Design & Experience Review with the Head of Engineering • Culture fit interview with the VP of Operations • Final Interview with the CEO Why work with us? • Build the future of finance work — design AI-native finance products, not just maintain them • Rapid skills improvement • Growth opportunities according to our seniority grading (it comes with a compensation increase) • Flexible schedule and time-off policy • 18 days of paid vacation per year , paid sick leaves