Founding Applied AI Software Engineer
Kerno
JavaKotlin
Software Engineer, Trust & Safety
Resend
full-time
Posted on:
Location Type: Remote
Location: Remote • 🇪🇺 Anywhere in Europe
Visit company websiteJob Level
Mid-LevelSenior
Tech Stack
AWSJavaScriptNext.jsNode.jsPostgresReactTypeScript
About the role
- Build and maintain internal services for enforcement, throttling, and policy rules
- Design automation pipelines that move from detection → decision → action
- Connect with core infrastructure: databases, queues, caching layers, and observability stacks
- Implement safeguards: fail-safes, fallback paths, and guardrails to prevent over-blocking
- Collaborate with teams to turn raw signals into actionable workflows
- Ensure all enforcement actions are traceable with logs, metrics, and audit trails
Requirements
- Bring 5+ years of software engineering experience
- Are fluent in writing and speaking English
- Have deep experience with Node.js, TypeScript, React (Express, Hono, Next.js)
- Proven experience with databases and performance tuning (Postgres, Clickhouse)
- Infrastructure and reliability skills (Datadog, AWS, CDK)
- Understand how to design systems with safety and fail-safe operations in mind
- Are comfortable with APIs, event-driven architectures, and stateful services
- Care deeply about observability: metrics, logs, tracing, error handling
- Take ownership across the stack — from frontend surfaces down to databases and queues
- Have worked in trust, safety, fraud, or security domains
- Have exposure to real-time enforcement systems, such as rate-limiting
Benefits
- Professional development opportunities
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard skills
Node.jsTypeScriptReactExpressHonoNext.jsPostgresClickhouseAPIsevent-driven architectures
Soft skills
collaborationcommunicationownershipproblem-solvingattention to detail
