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Fuelfinance

Senior Full-Stack Developer

Reposted 24 Days Ago
Remote
Hiring Remotely in USA
Senior level
Remote
Hiring Remotely in USA
Senior level
Design, build, and own end-to-end features for AI-powered finance agents and agent orchestration. Implement integrations with accounting and payment platforms, create dashboards and reporting, ensure security and data integrity, make architectural choices, monitor production, and drive AI-assisted, agentic development workflows.
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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

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