SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.
Salary: EUR 70,000 - 85,000 / annual
Upflow is a Financial Relationship Management (FRM) platform that helps B2B finance teams collect smarter and get paid faster, powered by AI agents. The platform unifies the order-to-cash process across four products (Insights, Collections, Payments, Cash Application) and serves 500+ companies across 30+ countries, including Vercel, Lattice, and Productboard. The company is backed by Y Combinator, Hedosophia, Hexa, and Lorimer, with teams across the US and Europe.
You will join a small, efficient engineering team building high-impact features. Your day-to-day responsibilities include architecting and implementing complex product features end-to-end, collaborating with product managers, designers, and engineers to translate business requirements into technical solutions, shipping clean maintainable code to production daily, participating in technical reviews, troubleshooting complex issues, optimizing application performance for scalability, and helping improve agentic tools and automations.
The team operates at a fast pace with approximately 20 production deploys daily while maintaining high quality standards. The culture emphasizes pragmatism, ownership, and a growth mindset. You'll work with modern tooling including TypeScript, React, GraphQL on the frontend; Node.js, Express, Postgres, and Redis on the backend; GCP and Terraform for infrastructure; and Datadog and Sentry for observability. The team actively uses AI coding assistants like Claude Code and GitHub Copilot.
You can work in the Paris office (Grands Boulevards, 75002) with 2-3 days on-site, or fully remote on Paris timezone with one monthly visit to the Paris office. Target start date is March 1, 2027. The company offers 35 paid days off, meal vouchers, top-of-range equipment, comprehensive healthcare, regular offsites, and strong connections to the startup ecosystem.
REQUIREMENTS:
- 5+ years of software engineering experience
- Strong proficiency in TypeScript, React, and SQL
- Proficiency with agentic coding assistants such as Claude Code
- Strong skills in architecture, software reliability, and scalability
- Product sensibility and care about UX
- Good teamwork skills with ability to give and receive feedback
- Fluent in English with strong communication skills
- Based in Paris or living in Paris timezone
- Desire to work in a startup environment valuing excellence, autonomy, and ownership
