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# Sr. Software Engineer (Java, Go)

- **Company:** Proofpoint
- **Location:** Belfast, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Software Debugging, Distributed Systems, Python (Programming Language), Software Engineering, Information Technology, Golang, Microservices
- **Published:** September 15, 2026
- **Apply:** https://dejobs.org/x/x/0EB6B99E41C0405F90747BD2E8A2645A/job/

## About the Role

* Proven software engineering experience with a level of seniority
 * Proficiency in Java, Go, and Python
 * Strong debugging and problem-solving skills - comfortable tracing issues through complex, distributed systems
 * Experience with (or strong aptitude for) large-scale microservice architectures - Comfortable with on-call responsibilities
 * Openness to AI-first development practices and tools
 * Excellent communication skills and a collaborative, team-first mindset
 * Comfortable operating in ambiguous situations without needing every requirement fully spelled out
 * A self-starter mentality - willing to challenge yourself, take initiative, and step up wherever the team needs help, including on less glamorous work
 * BSc Degree in Computer Science or a related field (or equivalent practical experience

## Description

We're looking for a Sr. Software Engineer to join our team and help build, scale, and maintain the systems powering our platform. You'll work across a large, complex micro-services architecture. This role is for someone who enjoys digging into hard problems, isn't afraid of ambiguity, and wants to keep pushing their own skills forward., * Design, build, and maintain services across our micro-service ecosystem

 * Debug complex, cross-service issues - you'll need to dig deep, trace root causes, and see problems through to resolution
 * Participate in an on-call rotation, responding to and resolving production issues
 * Collaborate closely with teammates, clearly communicating technical trade-offs, decisions, and progress
 * Navigate ambiguous problems and evolving requirements, helping bring clarity and direction to the team
 * Use AI-First and AI-assisted development tools where practical to improve velocity and quality
 * Take on unglamorous but necessary work when the team needs it - tech debt, infra-migrations
 * Continuously look for ways to innovate and improve how the team builds and operates software