
Software Engineer
- United Kingdom
- £60,000 per year
- Permanent
- Full-time
- Deliver features and fixes across the Gavel monorepo (API, admin portal, public website) with a focus on reliability, accessibility, and performance.
- Maintain and evolve the backend (NestJS + TypeORM) and our Aurora MySQL Serverless v2 schema and migrations; ensure data integrity and query performance at scale.
- Enhance the Next.js website for SEO, Core Web Vitals and fast content delivery using CloudFront and optimised media pipelines.
- Build real-time auction capabilities (e.g., Socket.IO or AppSync) and maintain robust search experiences via OpenSearch.
- Own integrations end-to-end: implement, monitor and harden connections with Reapit, CAP HPI, Experian, Cartel, AuthiPay, Prommt, NextGear, Impel, AIB, HMRC VAT Lookup, Google Places, Barcode Lookup, Credas, AWS Rekognition, AWS SES, and Campaign Manager (among others).
- Operate what you build: instrument, monitor and tune services using CloudWatch, optimisation in OpenSearch, and caching via ElastiCache/Redis.
- Contribute to CI/CD and IaC: write automated tests, maintain pipelines (GitLab, CodeBuild/CodeDeploy), and update infrastructure through AWS CDK.
- Champion security: apply best practices around Cognito (incl. M365 federation), IAM least-privilege, encryption with KMS, WAF, secrets management and auditable changes.
- Collaborate cross-functionally with Product, Ops and Support to triage issues, scope work, and deliver incremental value safely and predictably.
- Languages & frameworks: TypeScript, NestJS, React, Next.js; monorepo via Lerna & Yarn workspaces.
- Data & messaging: Aurora MySQL Serverless v2 (RDS), TypeORM migrations, ElastiCache/Redis, Bull queues.
- Search & real-time: OpenSearch; Socket.IO and AWS AppSync for live updates and bidding.
- Storage & delivery: S3, CloudFront; image optimisation (Sharp/Lambda).
- Auth & security: AWS Cognito (incl. M365 federation), IAM, KMS, WAF, Secrets Manager.
- CI/CD & IaC: GitLab CI, CodeBuild/CodeDeploy, AWS CDK (TypeScript).
- Internal libraries: GCD Technologies Acorn modules (assets, audit, authentication, CRUD, notifications, users, notes).
- Proven experience with TypeScript services (NestJS/Node) and modern React/Next.js front-ends.
- Strong MySQL fundamentals (schema design, indexing, performance) and ORM migrations (TypeORM).
- Production experience on AWS (S3, CloudFront, EC2/ECS, RDS/Aurora, ElastiCache, Cognito) and IaC (CDK).
- Integrating third-party APIs (REST/SOAP), webhooks and payment/KYC flows.
- Testing mindset (unit, integration, E2E) and CI/CD automation.
- Security awareness (MFA, JWT, sanitisation, least privilege).
- Real-time systems (Socket.IO, AppSync) and eventing patterns for high-traffic auctions.
- Search relevance and indexing pipelines (OpenSearch).
- Experience with the Acorn ecosystem.
- SEO and web-vitals optimisation for Next.js at scale.
- Environments: Production, Staging, UAT, Test; non-prod is cost-optimised (right-sized services, schedules).
- Observability: CloudWatch dashboards & alerts; optional X-Ray for traces.
- Security by design: VPC isolation, WAF, KMS encryption at rest/in transit, Secrets Manager; comprehensive audit trails.
- Collaboration with supplier: embedded ways of working, shared backlogs, code reviews and documentation focused on handover readiness (knowledge-capture checklists, run-books).
- Employee spending discounts
- Health & wellbeing incentives
- Professional development & growth
- Opportunity for advancements
- Mental health first aid access
- Employee recognition
- Length of service bonus
- Pension scheme
- Retirement bonus
- Bereavement leave
- On site parking
- Full uniform provided
- Paid eye examinations