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Senior Software Developer – Backend API Services

UK🌐 Remote💼 Full-time🗓 2026-05-23 → 2026-09-23

Core

Design, build, and maintain backend services for a cloud-hosted PBX platform, focusing on architecture, scalability, and performance optimization.

Role type

Senior Backend Software Engineer

Builds

Cloud-hosted PBX platform backend services and APIs

Domain

Cloud communications and collaboration

Deliverable

production ML models | product features | infrastructure

Required skills

Python, Linux, Nginx, Tomcat, HTTP/HTTPS, SQL, relational databases, CI/CD, Test Automation, concurrency debugging, async execution patterns

Preferred skills

Perl, JavaScript, TypeScript, Go, asyncio, aiohttp, dramatiq, Elasticsearch, Grafana

Responsibilities

Design and develop API and database backend services; Contribute to architecture decisions regarding scalability and reliability; Use data-led analysis to optimize system performance; Debug and resolve complex production issues; Collaborate with QA on test strategies; Write clean, unit-tested code and mentor others

Seniority

Senior, hands-on IC

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