Senior Software Engineer, Media at Symphony Communication Services in Belfast

Job description

• We are seeking a seasoned Senior Backend Software Engineer to join our Market Voice and Video (MVV) development team. The MVV team owns the core audio and video communication infrastructure within the Symphony app, heavily utilizing WebRTC.
• As a senior member of this small, agile team, you won’t just maintain server-side media backend services, you will also drive architectural decisions, mentor team members, and take full ownership of robust, scalable backend systems. We are incredibly passionate about engineering excellence and CI/CD best practices. If you are someone who proactively shares ideas, challenges the status quo, and takes extreme accountability for deliverables, you'll fit right in.

Responsibilities

• Architect & Implement: Lead the design, implementation, and testing of highly scalable server-side microservices utilizing Java (Spring Boot) and TypeScript, ensuring optimal interaction with the broader Symphony ecosystem.
• CI/CD Leadership: Drive and evolve our Continuous Integration and Continuous Deployment (CI/CD) strategies, keeping Jenkins at the center of our automation pipeline.
• Cross-Functional Collaboration: Partner closely with product management to define technical requirements and collaborate across engineering teams to execute seamless product integrations.
• System Reliability: Investigate complex production issues or performance bottlenecks.Document thorough failure analyses, post-mortems, and root cause analyses (RCA) to continuously improve platform resilience.
• Mentorship & Quality: Lead constructive, collaborative backend design sessions and code reviews. Elevate the team's engineering standards by mentoring junior and mid-level developers.

Requirements

• Education & Experience: BS/MS in Computer Science, Engineering, or a related field, with 7+ years of practical, hands-on experience in production software development.
• Deep, expert-level proficiency in Java and its ecosystem, with extensive experience building enterprise microservices using the Spring Framework (Spring Boot).
• Professional experience writing clean, scalable backend code in TypeScript (e.g., Node.js ecosystem).
• DevOps & Infrastructure: Strong experience working with containerization, orchestration, and Infrastructure as Code (IaC) tools, specifically Docker, Kubernetes (K8s), Terraform, Git, and Jenkins.
• Cloud Proficiency: Proven experience designing, deploying, and maintaining high-availability services within GCP and/or AWS cloud environments.
• Soft Skills: Exceptional proactive communication skills, a highly collaborative mindset, and a proven track record of end-to-end delivery ownership.
• Direct experience working with WebRTC, media streaming backend services, or audio/video protocols
• Ability to read and understand basic C++
• Knowledge of the SIP and RTP protocols
• Core understanding of Session Border Controllers (SBC), Media conference servers, and Selective Forwarding Units (SFU)

Skills

Required

• Java
• Spring Framework (Spring Boot)
• TypeScript
• Node.js
• Docker
• Kubernetes (K8s)
• Terraform
• Git
• Jenkins
• GCP
• AWS

Preferred

• WebRTC
• C++
• SIP
• RTP
• Session Border Controllers (SBC)
• Media conference servers
• Selective Forwarding Units (SFU)

Benefits

• Regional specific competitive benefits
• Build your own Benefits (BYOB) perk
• Local events, team building, and development opportunities
• Salary Range: £55,000 - 65,000 base salary per year
• Bonus Plan