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API Engineer

Amsterdam💼 Full-time💰 $90,000–$125,000🗓 2026-07-10 → 2026-07-31

Core

Designing and building robust, scalable APIs and backend services to empower customers with global connectivity services.

Role type

Senior API Engineer (Backend)

Builds

Scalable API services and backend infrastructure for telecom connectivity platform

Domain

Telecom / Connectivity / Fintech / HR Tech

Deliverable

production ML models | product features | infrastructure

Required skills

API design, backend service development, system architecture, observability, incident response, Ruby, Go, TypeScript, Elixir

Preferred skills

AI tooling proficiency, building products from scratch, business impact analysis, rapid learning

Technologies

Ruby on Rails, Go, TypeScript, Elixir

Responsibilities

Own complex problems end-to-end, design and build robust scalable solutions, maintain system reliability via observability, participate in incident response, improve tooling and processes

Seniority

Senior, hands-on IC

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