Software Engineer III, Backend - Orchestration

Role Description

As a Backend Engineer L3, you will work within a small, high-calibre team of engineers who own their work end to end. You'll report into the Engineering Manager for Orchestration and contribute to systems that handle real payment volume at scale.

• Take full ownership of backend features from scoping through to production, keeping the team informed on progress, risks, and blockers without being chased.
• Design and deliver backend services that handle real payment volume, with a strong focus on reliability, performance, and correctness at scale.
• Contribute to architecture discussions, bring proposals to the engineering council, and advocate for clear service contracts and simple, maintainable system design.
• Monitor the production impact of your own work, identify issues early, and drive incidents to resolution when they arise.
• Write code that your peers consider high quality: production-ready, well-considered on error paths, and built with the next engineer in mind.
• Actively contribute to Primer's engineering standards, raise concerns when you see gaps, and help the team hold a consistent bar.
• Collaborate with engineers across the Orchestration team on scoping sessions, code reviews, and technical decisions that shape how the system evolves.

Qualifications

• Solid backend engineering experience, with the ability to take ambiguous requirements and deliver working, production-ready software with minimal direction.
• Strong grasp of distributed systems fundamentals: you understand why things fail in production and you build accordingly.
• Comfortable working with REST APIs and the patterns that make services reliable, observable, and easy to reason about.
• Experience owning work end to end — not just writing code but thinking about monitoring, rollout, and what happens after deployment.
• The confidence to contribute to architecture discussions, ask the right questions, and push back when a design decision doesn't make sense.
• Experience in a payments, fintech, or infrastructure context is a plus, though depth of engineering matters more than the specific industry.

Requirements

• You may not like it here if you enjoy working in an office-setting, we are remote-first and always will be!
• You are not comfortable with shifting context and navigating ambiguity.

Benefits

• We are fully remote and globally distributed; and have been since day one.
• Competitive share options.
• Uncapped holiday, with 25 days minimum to be taken.
• Co-working space access.
• Workations & Company Retreat.
• The best equipment for your role.
• £500 towards your home office setup.
• Generous learning budget.
• Private Medical Insurance.
• A broad set of additional perks and benefits (depending on location).