Rafael Mendes
Senior Full Stack Engineer @Lush Digital
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WORK HISTORY
Senior Full Stack Engineer @Lush Digital
Led a team of 5 engineers — providing technical direction, running 1-on-1s, and conducting performance reviews while staying hands-on with architecture and code- Designed and optimised high-traffic systems handling 1200+ req/s with advanced caching, load balancing, and multi-region deployments (AWS ECS, GCP GKE), maintaining 99.9%+ uptime- Architected GraphQL supergraphs with Apollo Federation and event-driven backends (Pub/Sub, BullMQ), enabling modular API design across multiple teams-Delivered £250k+ in annual cost savings through infrastructure optimisation-Built end-to-end observability with Sentry, Grafana/Prometheus, and GCP Monitoring; established CI/CD pipelines that enabled a weekly release cadence- Managed PostgreSQL databases with Drizzle ORM — schema design, query optimisation, indexing strategies, and zero-downtime migrations.
SKILLS
ABOUT RAFAEL MENDES
More about me-> https://rafaelmendes.co.uk/Senior Full Stack Engineer with 6+ years of experience building high-traffic distributed systems, scalable APIs, and cross-platform applications. Proven impact: optimised systems handling 1200+ req/s at 99.9% uptime, delivered £250k+ in annual cost savings, and led teams of up to 15 engineers. Deep expertise in Node.js/TypeScript backends, React frontends, cloud-native infrastructure (AWS/GCP/K8s), and GraphQL at scale. Background in product management drives a focus on shipping reliable systems that solve real business problems.
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