Catalyst
Senior Backend Engineer
Job Description
Salary: £65,000 - 80,000 per year
Requirements:- Strong technical, commercial experience as a Backend Engineer, Senior Backend Engineer or Lead Backend Engineer, ideally in a fast-paced, growing technology-driven business
- Experience in an agile, product-led environment is desirable
- Production-grade experience in Go, having designed and shipped backend services at scale
- Experience with TypeScript in a backend context (Node.js, shared libraries, or tooling)
- Deep familiarity with core AWS infrastructure (Lambda, ECS/EKS, RDS/Aurora) - specialised knowledge in Aurora performance tuning is a significant plus
- Proficiency with AWS messaging services, specifically SQS, SNS and EventBridge
- Strong communication skills across technical and non-technical audiences
- Own technical direction for the backend platform — architecture, coding standards, and how services are designed and evolved
- Build and evolve production-grade services in Go and TypeScript across AWS Lambda, ECS/EKS, and RDS/Aurora
- Make architectural decisions with clear reasoning, balancing delivery pace with long-term maintainability
- Drive quality through code review, testing culture, and engineering practices
- Mentor and coach backend engineers — helping them grow their skills and careers
- Collaborate with Engineering Managers, Product and other platform Leads to align on shared standards
- Manage technical debt strategically and champion continuous improvement
- AWS
- Lambda
- Backend
- TypeScript
- NodeJS
- Cloud
- CTO
- DevOps
More:
We are a successful tech scale-up, a cash-generative SME currently at approximately £10 million turnover with around 80 staff, looking to double in size in the next five years under the guidance of our experienced and driven owner, supported by a first-class senior leadership team. We are looking to strengthen our Engineering capability by appointing a new Senior Backend Engineer based at our North East headquarters. In this full-time, permanent role, you will enjoy a basic salary between £65,000 and £80,000 plus benefits, hybrid and flexible working options, and access to free parking, on-site health facilities, staff events, and training opportunities.
last updated 31 week of 2026
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About Catalyst
Catalyst
Gateshead
IT
Skills & Technologies
Inferred from job description
Salary Insight
£72,500
This role
£75,000
UK median
This salary is 3% below the UK median for Senior roles (£75,000/yr).
Based on 2024–2025 UK technology sector benchmarks