Work Across
Get started
All jobs
Save

Senior Full Stack Engineer

Upflow
Contract type
Ongoing
Work mode
Hybrid · Paris, France
Experience
Senior · 5+ years

Job description

Software engineer role on a small, fast-moving product team building high-impact features such as AI agents, workflow automations, analytics and payment processing. Based in the Paris office or fully remote on Paris timezone.

At a glance

Employment
Full-time · Employee (employment agreement)
Work mode
Hybrid · Paris, France
Languages
English – fluent
Pay
EUR 70,000 – 85,000 / year

What you'll do

  • Architect and implement complex, high-impact product features from start-to-finish
  • Collaborate closely with the product manager, the designer, and other engineers to translate business requirements into technical solutions
  • Ship clean, maintainable code to production daily
  • Participate actively in technical reviews providing and receiving constructive feedback
  • Troubleshoot and debug complex product issues
  • Optimize application performance and ensure scalability
  • Help improve agentic tools and automations

What we're looking for

  • 5+ years of experience in software engineering
  • Strong proficiency in Typescript, React and SQL
  • Proficient at working with agentic coding assistant such as Claude Code
  • Strong skills in architecture, software reliability, and scalability
  • Product sensibility and care about UX
  • Good teamwork skills and enjoy providing and receiving feedback
  • Want to work in a startup environment that values excellence, autonomy, and ownership
  • Fluent in English with strong communication skills
  • Based in Paris, or live in Paris timezone

Benefits

  • 35 paid days off
  • Meal vouchers
  • Cool offices
  • Top-of-the-range equipment
  • Great healthcare
  • Competitive salary and equity
  • Regular offsites with the team, meetups, and strong connections to the startup ecosystem
  • Strong focus on learning and growing through education and professional development
  • Hands-off management style with a strong culture of ownership and autonomy

How to get hired

  1. 1Screening call with your future manager
  2. 2Take home assignment (coding exercise that can only be completed successfully with the help of AI)
  3. 3Technical interview reviewing the take-home assignment and discussing designing scalable systems and architectural decisions
  4. 4Meet the team (at least two other peers)
  5. 5Founder interview with Alex (co-founder & CEO)
  6. 6Alignment and offer

Apply

Save

Direct apply at Upflow

Opens the job posting at Upflow

About Upflow

Financial Relationship Management (FRM) platform

Upflow is the Financial Relationship Management (FRM) platform that helps B2B finance teams collect smarter and get paid by their customers faster, with AI agents working alongside the team. It brings the order-to-cash process into one system with four products covering the cycle from invoice to cash (Insights, Collections, Payments, and Cash Application), AI agents, and a shared intelligence layer.

Key facts

  • Financial Relationship Management (FRM) software
  • Serves 500+ companies across 30+ countries
  • Customers include Vercel, Lattice, and Productboard
  • Backed by Y Combinator, Hedosophia, Hexa, and Lorimer
  • Teams across the US and Europe
  • Offices in Paris and New York
  • Averages 20 deploys to production each day

Partners & customers

VercelLatticeProductboardY CombinatorHedosophiaHexaLorimer

What they value

  • Pragmatism
  • Ownership
  • Growth mindset
  • Excellence
  • Autonomy