Guilherme Rosa
CTO & Co-Founder at MerCloud
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolGuilherme Rosa is a seasoned CTO and co-founder with over a decade of hands-on experience building scalable web platforms and APIs using TypeScript/Node.js, React, GraphQL and AWS. He has led architecture and delivery across high‑traffic systems—designing multi‑tenant GraphQL gateways with Apollo Federation, Docker/Kubernetes deployments, and Terraform-driven CI/CD pipelines that serve millions of requests daily. Comfortable across the stack, he pairs frontend expertise (Next.js, SSR, testing with Jest/TestCafe) with backend and DevOps skills (Lambda, ECS, Pact contract testing, ElasticSearch, MongoDB). A pragmatic team leader and mentor, he introduced BDD/BDD practices and CI workflows at multiple organisations to raise code quality and reduce delivery risk. Based in London, he blends startup leadership as MerCloud CTO with enterprise experience at News UK, Dunelm and Medidata, and often surfaces non-obvious wins like performance-driven optimizations and developer workflow automation that accelerate team output.
10 years of coding experience
16 years of employment as a software developer
Técnico System Analysis and Development, Técnico System Analysis and Development at FTEC
English, Portuguese, Italian, Russian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (33)
aws-lambda10
azure-functions10
google-cloud-functions10
aws-dynamodb10
sam10
aws-apigateway10
serverless-applications10
aws-sam10
mobile-web10
aws10
serverless-framework10
lambda10
azure10
serverless10
nodejs10
Programming languages (2)
Github contributions (5)
guidr/ng-decorated
May 2016 - Sep 2017
Contributions:16 commits, 2 PRs, 14 pushes in 1 year 4 months
guidr/nextjs-multi-tenant
Oct 2023 - Oct 2024
Contributions:4 pushes, 2 branches in 1 year
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