Javier Casas

A random walk through computer science

Software consultant with a background on web development and embedded systems.
Looking for a remote contract in Finance and/or Fullstack Functional Programming.
Learner, ability to work on tight deadlines, low overhead, high throughput.

Worked for a startup that is based on Haskell + Purescript + React and uses microservices to deliver the best college admissions coaching available.
Helped interconnect the backend and the frontend in a way few projects are able to construct. See details at: www.stackbuilders.com/tutorials/functional-full-stack/purescript-bridge/
Worked on a startup based on Haskell + React Native that constructs a native app to improve the behaviour of children.
Lead a project based on C# and React/TypeScript to deliver a real-time monitoring system for Latin-America shrimp farms.

Lead a project based on Haskell that delivers portfolio performance optimization based on stock option allocation.
Lead a startup that uses Haskell, the Cardano Blockchain and Plutus Smart Contracts to connect employers and workers.
Currently studying Trading and Exchanges: Market Microstructure for Practitioners

Lead a weekly advanced readings group that made a group of strong Haskell developers into type-level developers.
Currently studying The Little Typer, Thinking with Types and The Little Prover.

Constructed the main prototype for running a microservices platform locally using Docker, docker-compose, and scripts for preloading dockerised databases.
Constructed CI/CD pipelines for several projects, based on CircleCI and GitlabCI.
Constructed several Ansible configuration playbooks that construct the main servers from bare Debian AWS instances.

Worked on projects both based on Scrum and Kanban, working with remote teams, clients and developers.
Effective as Tech Lead and part-time Project Manager/Scrummaster.
Ability to prioritise, schedule, refine and estimate stories, organise sprints and unblock peers.

Lead and worked on 6 projects for different clients in education, industry and finance.
Worked remotely with clients from USA, Australia and Latin America.
Grew from Tier 1 to Tier 3 Developer, being now one of the three people with Tier 3 level.
Developed training plans for junior associates.

Developed new features & bug fixes for the main products of the company.
Supported and help progress major opportunities and sales.
Translated the product and user manuals to Spanish.
Researched and implemented support for HTTPS caching, that gave GBP40K in sales in 2014, and more than GBP250K expected sales in 2015.