Diego – Typescript, React, Next.js
Diego is a calm, thoughtful, strong senior full‑stack developer who structures his thoughts well and takes real ownership of his work. He is comfortable talking directly to clients, digs into real user problems before coding, and makes pragmatic, product‑first decisions under time- and scope-constrained conditions. We see him as a strong fit for product teams that need a senior who can think about architecture, handle complexity, and still stay close to business value.
9 years of commercial experience in
Main technologies
Additional skills
Direct hire
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Let’s get started today!Experience Highlights
Full-Stack Web Developer
Internal meeting‑intelligence platform that centralizes analysts’ notes from founder calls, combining real-time Zoom transcription with AI-generated summaries, key decisions, and follow-ups to reduce manual note-taking and context loss across the deal pipeline.
- Designed and led the end-to-end architecture of the internal notes platform, coordinating frontend and backend systems;
- Built a real-time auto-save note editor to ensure users never lost meeting notes;
- Integrated Zoom and Deepgram to deliver live meeting transcriptions within the application;
- Integrated OpenAI to generate AI-powered meeting summaries and suggest follow-up topics for analysts;
- Developed AI-assisted form autofill using context from meeting transcriptions and analyst notes;
- Implemented full-text search for notes and meeting transcriptions using PostgreSQL GIN indexes to improve query performance.
Full-Stack Web Developer
Company data API powering fast search and discovery across a catalog of 6M+ companies, with advanced filtering and optimized PostgreSQL queries to surface the most relevant results in milliseconds.
- Developed Company API in NestJS, which is a REST API that provides information about companies and their financials;
- Got 6x speed-up on the Company API by updating an old SQL query (used to take 30 seconds, now takes 5 seconds);
- Got 10x speed-up after adding an in-memory caching layer to the Company API. (from 5 seconds to 500ms with cache hit);
- Used Next.js to create a new app that displays all companies that Insight Partners has invested in.
Full-Stack Web Developer
Institutional crypto trading and custody platform used by B2B clients to buy, sell, and convert digital assets at scale, including fee-free USD→USDC conversions and portfolio tools tailored for funds, corporates, and treasury teams.
- Implemented the Conversion feature for Prime, which enabled users to convert USD to USDC with no fees;
- Migrated some endpoints from a legacy Ruby system to a new Go service, getting up to 100x speed-up;
- Developed internal tools that would allow the Coinbase Backoffice team to perform transactions on behalf of its users.
Software Developer
Public Prime APIs that allow institutional Coinbase clients to programmatically integrate trading, custody, and real-time market data into their own systems, enabling automated workflows and native crypto features in B2B platforms.
- Developed some of the Transactions and Wallets;
- Added an authentication layer to the Web Sockets API so users could securely authenticate to it;
- Documented some changes to the Changelog so customers would have a clearer understanding of what features/bugfixes/changes would be realized in the new version;
- Created an E2E test runner that would generate integration tests based on a Swagger file.
Software Developer
Digital banking and financial operations platform built for accounting firms, giving their SME clients a single place to manage bills, invoices, user permissions, and daily cash‑flow tasks with banking‑grade security.
- Implemented the integration of external banking APIs, enabling users to see their balances, pay their taxes, and perform financial transactions;
- Improved the security and usability of our infrastructure as code (Terraform), by adding a S3 backend;
- Developed the authentication and authorization service that would allow the account admin to manage access from all other accountants.
Co-Founder/Software Developer
Mobile fitness app that lets users auto‑generate personalized workout plans and track their progress over time with simple logs and visual progress feedback.
- Architected and developed the tech stack, choosing which technology to use and implementing everything from scratch;
- Integrated with the Stripe API so users could subscribe to the premium services;
- Developed the technical aspect of the pitch and presented the final product to potential investors.