Senior Software Engineer (TS & Java/Kotlin) - AI DevTools

Zencoder; Paris; Hybride; EUR 85 000 - 129 000; Plein temps

Résumé du poste

A leading AI development firm is seeking a Senior Software Engineer with strong TypeScript and Java/Kotlin expertise to drive the development of next-generation AI coding agents. The ideal candidate will have over 10 years of experience and a solid foundation in software engineering and AI. This role offers the chance to influence developer interactions with AI and grow in a high-potential startup environment.

Prestations

Equity participation

Growth potential

Flexibility in work location

High talent density

Qualifications

• 10+ years of experience in software engineering covering multiple large-scale, production-grade systems.
• Expert in TypeScript and Java/Kotlin.
• Strong grasp of modern software architecture and design principles.

Responsabilités

• Design and build new features and core functionality for our AI-powered VSCode and JetBrains plugins.
• Refactor and optimize existing codebases.
• Collaborate cross-functionally with product, design, and research teams.

Connaissances

TypeScript

Java/Kotlin

Software engineering

AI landscape knowledge

Collaboration

Description du poste

Senior Software Engineer (TS & Java/Kotlin) - AI DevTools

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. 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.

The Opportunity

We are seeking an experienced Senior Software Engineer with strong TypeScript and Java/Kotlin expertise to join our engineering team and take ownership of building next-generation AI coding agents.In this role, you’ll drive the development of core features, shape the user experience of AI-powered assistants, and explore innovative workflows that push the boundaries of what these tools can do. Your work will directly influence how developers interact with AI and how the industry evolves.

This is a unique opportunity to join an early-stage company led by the founder of a unicorn startup, Andrew Filev, and help scale it into a thriving, innovative business. You'll also have the chance to grow with us—whether you’re interested in deepening your technical expertise, expanding into team leadership, or exploring new product and business directions.

Key Responsibilities

• Design and build new features and core functionality for our AI-powered VSCode and JetBrains plugins, from prototyping to production-level code.
• Refactor and optimize existing codebases, bringing them in line with best practices for maintainability and performance.
• Contribute to system architecture, participating in design and technical discussions.
• Collaborate cross-functionally with product, design, and research teams to develop features with real-world developer impact.
• Evaluate trade-offs thoughtfully, balancing performance, scalability, complexity, and cost to propose practical, elegant solutions.
• Drive engineering best practices in testing, observability, CI/CD, and code quality standards.
• Champion innovation by bringing bold ideas to the table, challenging assumptions, and exploring new ways to push the boundaries of AI tooling.
• Shape team culture, contributing to a high-trust, high-autonomy environment.

Essential Qualifications

• 10+ years of experience in software engineering covering multiple large-scale, production-grade systems.
• Expert in TypeScript and Java/Kotlin.
• Solid computer science foundation paired with a strong grasp of modern software architecture and design principles — and a track record of applying them effectively in real-world projects.
• Deep familiarity with a wide range of AI assistants and a strong understanding of the AI landscape, trends, and practical use cases.
• Deep understanding and experience of enterprise software development processes, ability to formalize typical SDLC tasks with all nuances.
• Proven ability to work effectively in a collaborative team environment, with excellent communication skills and a commitment to delivering high-quality solutions on time.
• Eagerness to learn and adapt to new technologies and methodologies, with a passion for continuous improvement and innovation.
• Ability to work in dynamic, fast-changing environments or experience in start-ups.

Why Join Zencoder?

• Impact:Gen AI will change how companies develop software in the next two years. Be at the frontier of that AI work, building a category-leading product in a huge market. You will have an everyday opportunity to innovate.
• Growth potential:Thrive in a high-growth AI startup combining personal and career growth.
• High Talent Density:Collaborate daily with our experienced AI engineers, software engineers, and founder, Andrew Filev.
• Equity:Align your success with ours by participating in our equity plan.
• Flexibility:We hire globally, prioritizing talent over location. Work where you’re most productive and comfortable.

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

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