Senior Full-stack Engineer (TS & Java/Kotlin) – AI Developer Tools

Zencoder; Paris; Hybride; EUR 70 000 - 100 000; Plein temps

Résumé du poste

Zencoder is seeking a senior engineer to develop AI coding agents that enhance developer workflows. The role requires expertise in TypeScript and adaptability to various technologies, with a focus on building impactful tools for software development. Join a dynamic team led by experienced leadership and contribute to a transformative mission in AI-driven coding.

Prestations

Equity included

Remote friendly

High talent density

Experienced leadership

No busywork

Qualifications

• 10+ years of real-world engineering experience.
• Deep experience with TypeScript.
• Working knowledge of Java or Kotlin.

Responsabilités

• Build core functionality of AI coding agent.
• Write excellent TypeScript and collaborate across the stack.
• Contribute to Python-based AI integration layer.

Connaissances

TypeScript

Java

Kotlin

Python

React

Description du poste

Europe, Remote

About Zencoder

Zencoder is building the next generation of AI coding agents — advanced tools that supercharge developer workflows and elevate engineering impact. Our mission is to transform how software is built by equipping developers with AI-powered tools that boost productivity, improve code quality, and unlock creativity.

Our product integrates seamlessly with JetBrains IDEs and VS Code, helping developers generate, refactor, and repair code — all while staying aligned with project goals. It includes fast and intelligent AI code completion, and our agents can independently perform tasks like running shell commands or searching the web to assist with coding and debugging. We're especially proud of our proprietary Repo Grokking technology, which enables our AI agents to deeply understand your entire codebase, providing the strongest contextual understanding on the market. Zencoder also connects with 20+ popular tools like Jira, Sentry, GitHub, and GitLab, making it the most integrated AI coding solution available.

This is just a small part of what Zencoder is all about. There’s much more to discover — and we’re just getting started.

We’re building AI coding agents that actually help developers — not autocomplete party tricks, but real tools that understand your project, refactor your code, generate unit tests, and scaffold entire repos. The kind of toolwe wish existed every time we hit a deadline with 400 TODOs left.

We’re looking for a senior engineer who’s confident in TypeScript, curious about how things work under the hood, and unfazed by weird tech or fast-changing specs. If you’ve ever said “eh, I’ll figure it out” and then actually did, you’re the type we want. Sometimes that means jumping into Java or Kotlin to tweak our JetBrains IDE plugin (with a bit of Swing). If that sounds more fun than scary, you’ll fit right in.

We’re still early, so:

• The problems are big.
• The codebase is (mostly) clean.
• The opportunities to make your mark are everywhere.

We’re led by Andrew Filev (Wrike founder) and backed to move fast and build real stuff. You’ll join a small, sharp team where every line of code matters.

What You’ll Do

• Build the core functionality of our AI coding agent — from intelligent code edits to repo-wide refactors, project scaffolding, and beyond.
• Write excellent TypeScript and make decisions that scale, but also get your hands dirty across the stack when needed.
• Contribute to our Python-based AI integration layer and model-serving infrastructure. Even if you’re learning on the fly.
• Dive into unfamiliar tech, frameworks, and tooling. We’re not hiring domain-specific robots — we want adaptable humans (or incredibly convincing simulations).
• Collaborate with a team that actually ships. No 14-person alignment meetings. Just smart people building cool stuff.

What You Bring

• 10+ years of real-world engineering experience, including deep experience with TypeScript (or a close cousin).
• Working knowledge of Java or Kotlin — enough to jump into JetBrains IDE plugin development when needed.
• Familiarity with Python (especially in the context of scripting, automation, or AI workflows) is a big plus.
• Generalist mindset — you’re comfortable picking up new languages, frameworks, and systems as the job demands.
• Strong CS fundamentals — data structures, algorithms, architecture.
• Experience building and maintaining complex production software (ideally with users!).
• A low fear of failure and a high bias for action.
• Frontend: TypeScript, VSCode Extension APIs, React, Java/Kotlin, Swing

Why Zencoder?

• Massive Impact: AI is changing how software gets made. You’ll be building tools at the center of that shift.
• No Busywork: We cut out the noise so you can focus on solving interesting problems.
• Experienced Leadership: Andrew Filev scaled Wrike from nothing to a $2B exit — and he’s not here to waste time.
• High Talent Density: Senior team. No babysitting.
• Remote Friendly: We hire globally and care more about output than timezones.
• Ownership: Equity included — you’re not just an employee, you’re part of the upside.

Zencoder is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

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