Full‑Stack Developer

Javier Parrado

South Croydon, UK

About Me

I thrive at the intersection of product and engineering—spotting opportunities, proposing ideas, validating them fast, and shipping impactful features end‑to‑end to production. I bring a broad technical range across frontend, backend, and cloud, and I use AI heavily to accelerate prototyping, automate workflows, and deliver high‑quality solutions quickly.

Things I value

  • Up to 2 days in office
  • 3-4 weeks per year work remotely
  • End‑to‑end ownership
  • Fast iteration

Salary Range

£80K - £100K

Annual, negotiable based on role

Experience

Fullstack Developer

Re:Co — London, UK

2024 - Present

Migrated an ESG data platform from Laravel/PHP to a simplified Node.js (TypeScript) monolith on AWS serverless (auth in Cognito, business logic in REST Lambdas). Built internal doc-knowledge search for PPT/PDFs (grep-like + semantic retrieval) with AWS ingestion/indexing, Next.js UI and Vercel Postgres. Delivered rapid AI MVPs with v0 for generative UI prototyping. Enabled company-wide automation with n8n workflows and integrated RAG using Supabase Vector DB.

TypeScriptNode.jsAWS LambdaCognitoNext.jsPostgresVerceln8nSupabase

Backend Developer

British Airways — London, UK

2022 - 2024

Led backend development for an in‑app baggage carousel module in the BA mobile app. Designed and implemented a serverless AWS architecture (Lambda, DynamoDB, SQS/SNS, CloudWatch) with scalable APIs, async processing, and production‑grade observability.

AWS LambdaDynamoDBSQSSNSCloudWatchTypeScript

Frontend Developer

UBS — London, UK

2021 - 2022

Built an internal UBS App Store (TypeScript + React) to showcase upcoming economic talks, enabling employees to browse sessions and subscribe/attend events. Delivered the feature end‑to‑end on the frontend.

ReactTypeScript

ETRM Developer

Neste — London, UK

2020 - 2021/2

Enhanced an Allegro‑based risk platform by building new data‑processing modules in C#, enabling analysts to perform daily analysis more effectively. Investigated and fixed internal system errors with tested improvements.

C#.NET

Fullstack Developer

Repsol — Madrid, Spain

2019 - 2020/2

Developed administration portals using React and built mobile applications.

ReactJavaScript

Languages

EnglishSpanish

Technologies

ReactTypeScriptAWSSQLMongoDBNext.js

Education

Higher National Diploma (HND) in Computer Science

CES — Madrid, Spain

2017 - 2019

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