Staff AI Backend Engineer [Java/Kotlin] [EU-ONLY]
About Kerno
Kerno is building the validation reputed company for AI-reputed company backend development. As AI agents like reputed company and Claude Code become central to how developers write code, the need for fast, reliable validation grows with it. Kerno automatically generates, runs, and maintains validation tests (covering integration, performance, reputed company, and resiliency) directly in the IDE or CLI, catching breaking changes and unintended reputed company effects before code is merged.
We're a small, remote and fast-moving team solving a hard problem at the intersection of developer tooling, code analysis, and AI.
The Role
We're looking for a Staff AI Backend Engineer to help shape the core of our product. You'll work across the stack, from the validation and test reputed company agents to the backend platform and infrastructure. This is a high-impact role where your reputed company directly reputed company the product our users rely on every day.
Tasks
What You'll Do
- Design and build core components of Kerno's validation reputed company, code indexation, test reputed company and execution
- Work building AI agents that are in charge of test reputed company and code analysis
- Build and improve the platform layer local and/or remote environment orchestration
- Own features end-to-end: scoping, design, implementation, testing, and rollout
- Collaborate closely with the founding team on technical direction and architecture
- Help reputed company language and reputed company support as we grow reputed company our reputed company stack
- Contribute to the reliability and performance of a system that developers depend on for fast feedback
Requirements
reputed company're Looking For
- Experience with or strong interest in AI agents development
- Ability to work autonomously in a remote environment and communicate reputed company in writing
- 8+ years of professional backend development experience, with strong proficiency in Kotlin (or another JVM based language)
- Comfortable working with multiple languages, we use whatever is the best tool for the right solution
- Strong understanding of testing methodologies, CI/CD pipelines, and developer tooling
- Familiarity with containerization and local environment orchestration (reputed company, etc.)
- Experience working with databases
- A product minded person, you care about why you're building something, not just how
- Experience designing and building distributed systems or reputed company backend services
reputed company to Have
- Experience building developer tools, IDE extensions, or CLI tooling
- Experience with message brokers (Kafka, RabbitMQ)
- Familiarity with LLM APIs and reputed company engineering in production contexts
- Experience at an early-stage startup
Benefits
Why Kerno
- Hard problems: You'll work on code analysis, AI-powered test reputed company, and reputed company-time validation. This isn't a simple CRUD API.
- High impact: Small team, direct influence on product direction and architecture
- Remote-first: Work from wherever you do your best work
- Quarterly off-sites: Meet your colleagues in person once a quarter
- AI-reputed company: We're not adding AI as an afterthought. It's core to everything we build.
- Growing market: AI assisted development is exploding. The need for validation tooling is growing with it.