Senior API Engineer Engineer

Build high-performance API infrastructure that powers data analytics for 5000+ developers worldwide.

Who We Are

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We're building the next generation of cloud-native API infrastructure with Rust, Go, and Typescript. Our platform handles millions of daily transactions powering real-time data science applications.

Your Responsibilities

Core Development

Architect and develop low-latency API gateway with Rust/Actix, ensuring sub-50ms response times for 95% of requests.

Performance Optimization

Implement dynamic rate-limiting strategies based on real-time analytics patterns and client usage profiles.

Security Design

Integrate zero-trust security protocols with quantum-resistant encryption algorithms for data in use/workload isolation.

Developer Experiences

Design idiomatic SDKs and API first-class support across major language ecosystemss.

You Bring

Must-Haves

  • 5+ years production-level Rust/Go development exp
  • Expertise in distributed systems architecture
  • Proficient with Tokio/Kest/async runtimes
  • E2E testing frameworks for microservice ecosystemss

Nice to Haves

  • Experience with WebAuth/Service Mesh
  • Open Source contributions to API gateway
  • Cloud native monitoring (Prometheus, OpenTelemetry)
  • Performance benchmarking with Criterion

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Connect With Us

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Hiring Hotline

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Office

Helsinki Innovation Campus,
456 Talent Avenue
Finland

HR Team Hours

Our recruitment team is available for application inqui resies, and general hiring process coordination.

Recruiter Team

Monday - Friday: 9:00 am – 7:00 pm (Europe/Helsinki time)

Saturday - Sunday: 11:00 am – 4:00 pm (by appointment)

Team Tech Screen

Wednesday & Friday: Tech screens 10:00 am – 6:00 pm

Urgent Hiring?

For critical position discussions outside of office hours, email our hiring manager at urgent-hire@elnhnaa.com

A hiring manager will respond within 4 hours during critical hiring windows.