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Senior Backend Engineer @ Catalyst

Wolff Road, GatesheadOnsiteFull-time
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About this role

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 businessExperience in an agile, product-led environment is desirableProduction-grade experience in Go, having designed and shipped backend services at scaleExperience 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 plusProficiency with AWS messaging services, specifically SQS, SNS and EventBridgeStrong communication skills across technical and non-technical audiences Responsibilities: Own technical direction for the backend platform — architecture, coding standards, and how services are designed and evolvedBuild and evolve production-grade services in Go and TypeScript across AWS Lambda, ECS/EKS, and RDS/AuroraMake architectural decisions with clear reasoning, balancing delivery pace with long-term maintainabilityDrive quality through code review, testing culture, and engineering practicesMentor and coach backend engineers — helping them grow their skills and careersCollaborate with Engineering Managers, Product and other platform Leads to align on shared standardsManage technical debt strategically and champion continuous improvement Technologies: AWSLambdaBackendTypeScriptNodeJSCloudCTODevOps 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 29 week of 2026

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