Senior Backend Engineer

In your day-to-day at Upflow, you will:

• Architect and implement complex, high-impact features from start-to-finish.

• Collaborate closely with the product manager and other engineers to translate business requirements into technical solutions.

• Ship clean, maintainable code to production daily.

• Participate actively in code reviews providing and receiving constructive feedback.

• Troubleshoot and debug complex data and product issues.

• Optimize application performance and ensure scalability.

• Help us define and improve our coding standards, development processes, and best practices.

• Stay up to date on new technologies and promote their adoption when appropriate.

Our current stack

• Backend: Typescript, Node.js, Express, Postgres, and Redis

• Frontend: Typescript, React, GraphQL

• Infra: GCP, Terraform

• Observability: Datadog and Sentry

• Github, Copilot, Claude Code, CircleCI

Who you are

• You have 5+ years of industry experience in software engineering, ideally working on data synchronization processes

• You have strong proficiency in Typescript and SQL

• You value code simplicity and testing.

• You know how to prioritize in order to deliver quickly without sacrificing quality.

• You have good teamwork skills and enjoy providing and receiving feedback.

• You want to work in a startup environment that values excellence, autonomy, and ownership.

• You are fluent in English with strong communication skills.

• You are based in Paris, or live in Paris timezone.

Why join Upflow?

💰Top-market compensation + company’s equity — €60k/yr - €90k/yr.

🚀 Best-in-class product in a massive market.

💨 Fast-moving environment - you will never stop learning and growing.

🤝 Trusting environment - hands-off management style with a strong culture of ownership and autonomy.

🌎 International environment - work with team members across Europe and the US.

✈️ Exchange program - Opportunity to work from New-York for 4 weeks after a year

🏢 Flexible remote culture with offices in Le Marais, Paris and Midtown, New York City

🤼 Team activities such as lunch, drinks and offsite organized regularly.

Recruitment Process

1 - Screening call

It’s a discussion with our tech recruiter. We’ll get deeper into your expertise and know-how, and introduce you to Upflow in more details (vision, team, stakes, ambition). The goal is to see if it's a match!

2 - Technical interviews

System design interview

In this interview, we'll explore how you design scalable systems and make architectural decisions. You'll be presented with a real-world scenario and we'll discuss trade-offs, data modeling, and how you'd handle scale and reliability.

Coding interview

This is a pair-programming session where you'll work through a real-world problem similar to what you'd encounter at Upflow. We'll collaborate on solving it together, giving us insight into how you approach technical challenges and communicate your thought process.

4 - Meet the team!

You’ll also meet up with at least two other peers so you can foresee yourself as part of this team. 😃

5 - Founder interview

Meet with Alex (co-founder & CEO). He will tell you everything about Upflow’s vision and values. It’s a privileged moment to ask questions, too.

At Upflow, we are committed to building a diverse and inclusive workplace. We encourage all individuals to apply, even if you don’t meet every qualification. Research shows that some candidates may hesitate to apply unless they meet every requirement. However, we believe that a variety of experiences and perspectives can bring value beyond the listed qualifications. If you’re excited about what we do and feel you could contribute, we want to hear from you

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.