Top Tech Jobs & Startup Jobs in Belfast

Collaborate on designing, developing, testing, debugging, and maintaining software applications. Write efficient, documented code, participate in code reviews, contribute software ideas, and learn development tools, frameworks, methodologies, and industry practices alongside senior developers.

Assists the technical support team with diagnosing and troubleshooting client issues across phone, email, and chat. Provides step-by-step technical guidance, documents customer interactions and resolutions, escalates complex problems, and helps create knowledge base articles and FAQs. The intern develops technical troubleshooting, communication, and customer service skills while learning Symphony’s messaging and voice products.

Design, build, and maintain scalable, highly available cloud infrastructure using IaC. Manage Kubernetes clusters with Helm and ArgoCD, implement observability with Splunk and Grafana, automate operations with Python/Go, provide production support and participate in 24/7 on-call rotation, and troubleshoot networking and Linux systems across GCP and AWS.

Build and maintain scalable test automation frameworks and QAOps infrastructure for UI, API, backend, and end-to-end testing across multi-cloud environments. Integrate automation into CI/CD pipelines, analyze test and production telemetry to identify risks, support release validation and QA sign-off, and drive quality engineering best practices across distributed teams.

Design, prototype, and maintain high-performance systems software with emphasis on firmware, device drivers, hardware interfaces, and real-time communication (WebRTC/WebSockets/REST). Debug and resolve low-level issues, collaborate with cross-functional teams, participate in code reviews, ensure security and compliance, and contribute to continuous improvement and POCs.

Join the Middleware team to build and maintain microservices powering real-time message delivery, tenant lifecycle management, and search. Develop features, scale services, implement automation with GitOps/CI-CD, and collaborate with SRE and senior engineers on code reviews, documentation, and operational tooling.

Design, implement, and maintain scalable server-side microservices for audio/video communication using Java and TypeScript. Lead CI/CD (Jenkins), collaborate with product and engineering teams, troubleshoot production issues, perform RCA/post-mortems, mentor developers, and drive architecture and reliability for WebRTC-based media backend services.

The role involves leading compliance quality initiatives, designing test automation frameworks, collaborating with teams, and ensuring compliance in software development.

We are seeking a collaborative Backend Engineer with Java expertise to design, build, and maintain backend services, focusing on operational excellence and system reliability. Responsibilities include architecture, automation, and supporting production environments in a multi-cloud setting.