Senior Full-Stack Developer

Who are we?

Fuel is on a mission to unlock billions of dollars in GDP by helping SMBs make better financial decisions every day. We manage over $500M in customer P&Ls through our FP&A platform, combining AI with hands-on CFO expertise to deliver enterprise-grade finance - without the enterprise price tag or complexity.

fuelfinance.me
instagram.com/fuelfinance
youtu.be/eI5VH2Ks9o4

Who are we searching for?

We’re looking for a Senior Full-Stack Developer who loves ownership and shipping real impact. You’ll help build our AI-powered financial platform end-to-end - from architecture to integrations - and deliver features that directly influence how startups run their finances.

If you want to build fast, solve hard problems, and shape the future of fintech, you’ll fit right in.

Team structure: 1 Engineering Manager, 2 Senior Full-Stack Developers, 1 Middle Full-Stack Developer, an AI Researcher, and a Head of R&D (responsible for product management and product strategy).

What are your responsibilities?

• Build full-stack features end-to-end - from architecture and database design to releasing it for customers and further support.
• Develop AI-powered product capabilities, including conversational interfaces and intelligent financial tools.
• Create scalable, reliable systems and integrations with financial APIs (QuickBooks, Stripe, Xero, etc.).
• Collaborate with Product, FP&A, and Design to turn business requirements into elegant technical solutions.
• Make informed architectural decisions that balance speed, quality, and long-term maintainability.
• Improve system performance, reliability, and engineering workflows (CI/CD, monitoring, coding standards).
• Mentor engineers through reviews, pairing, and knowledge sharing.
• Drive technical initiatives that increase development velocity and product impact.

What are the preferred requirements for the role?

Must-have skills:

• 5+ years of full-stack experience building and shipping products end-to-end.
• Strong skills in Node.js (Nest.js), React, LLM APIs, Typescript, SQL, NoSQL, and AWS 
• Experience integrating third-party APIs, ideally financial ones.
• Solid understanding of security, data handling, and compliance basics.
• Able to communicate clearly with both technical and non-technical stakeholders.
• Ownership mindset: reliable, proactive, and accountable for results.
• English B2

Nice-to-have skills:

• Experience with Kubernetes and Docker.
• Knowledge of REST and GraphQL.
• Familiarity with OpenAPI/Swagger documentation.
• Prior experience building fintech or financial automation products.
• Background in startups with rapid iteration and high-pressure releases.

Reporting Structure:

You will report to the Head of R&D and the Engineering Manager.

Recruitment Process:

• Recruiter interview
• Technical interview
• Test task
• Test task review call with the hiring manager (*optional stage)

• Cultural fit interview

   

Why work with us?

• Build an AI-powered financial platform used by global startups.
• High ownership: every feature you ship directly impacts revenue (MRR) and customer satisfaction.
• Work closely with founders and senior leaders - real influence, not just ticket execution.
• Learn deep fintech, accounting, and financial data logic - a rare and highly valuable skill set.
• Fast professional growth: architecture ownership, AI systems, leadership potential (the opportunity to become the team lead as the team grows)
• Flexible schedule, 18 days of paid vacation per year, 10 days of paid sick leave, and a low-ego team culture.