Staff Software Engineer in Belfast

Staff Software Engineer – Harness

Location: Hybrid – Belfast, Northern Ireland, United Kingdom

Position Summary

Harness IACM (Infrastructure as Code Management) empowers engineering teams to automate, govern, and optimize their infrastructure provisioning at scale. With deep integration into CI/CD workflows, IACM orchestrates cloud resources using best‑practice templates, policy‑driven controls, and intelligent lifecycle management—delivering secure, compliant infrastructure with speed and reliability. Join us to help build the future of DevOps automation and unlock infrastructure innovation for some of the world’s most ambitious software teams.

About The Role

• Design, develop and maintain critical software for a scalable platform in a fast‑paced environment.
• Author software functional specifications and design documents.
• Quickly understand complex systems/code and own key pieces of the system, ensuring high quality.
• Diagnose and troubleshoot complex problems in a distributed computing environment.
• Establish best practices in quality, performance, and architecture within the team.
• Mentor Software Engineers & Senior Software Engineers, providing technical leadership.
• Perform peer reviews of specifications, designs, and code.
• Identify technical debt and scaling issues in the base code and drive improvement.
• Work alongside Site Reliability Engineers and cross‑functional teams to diagnose/troubleshoot production performance‑related issues.
• Develop in Java, Golang, and Python. Systems built on Docker, Kubernetes, MongoDB, ELK, TimescaleDB, GCP (Stackdriver, GCS, Cloud Composer, AI Platform).

About You

• Desire to build products that solve complex technical problems for end users.
• 7+ years experience developing highly scalable, distributed applications, products, and services in Java and Golang.
• Experience designing/developing REST, gRPC, and GraphQL APIs.
• Working knowledge of SQL and No‑SQL database technologies.
• Strong foundation in data structures, algorithms, and software design with strong analytical and debugging skills.
• Experience in SaaS platform development at scale.
• Entrepreneurial spirit, pride in delivering high‑quality work.
• Experience with AWS, Azure, or GCP is a plus.
• Bachelor’s in Computer Science (advanced degree preferred) or equivalent professional experience.

Benefits

• Competitive salary.
• Comprehensive healthcare benefits.
• Flexible Spending Account (FSA).
• Employee Assistance Program (EAP).
• Flexible Time Off and Parental Leave.
• Quarterly Harness TGIF‑Off / 4 days.
• Monthly, quarterly, and annual social and team‑building events.
• Recharge & Reset Program.
• Monthly internet reimbursement.
• Commuter benefits.

Salaries and Incentives

Factors that may be used to determine your actual pay rate include your specific skills, experience, qualifications, location, and comparison to other employees already in this role. In addition to the base salary, certain roles may qualify for a performance‑based incentive and/or equity, with eligibility depending on the position. These rewards are based on a combination of company performance and individual achievements.

Equal Opportunity Statement

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, or national origin.