• Domain Modeling with Tagged Unions in GraphQL, ReasonML, and TypeScript

  How tagged unions help us write better applications
• Writing a Custom TypeScript AST Transformer

  Exploring TypeScript compiler transformations

• Apr 2023 - Apr 2024
  Steadily
  Senior Software Engineer

  Lead on multiple web products for a rapidly growing insur-tech startup through its maturation before and after Series B funding.

  • Architected and built self-serve functionality allowing consumers to purchase insurance without an agent, bypassing the most expensive part of the customer acquisition process. This accounted for 5% of all written policies at year-end

  • Led the incremental redesign of the main sales funnel from Django to a Next.js application supporting A/B testing and detailed analytics through Mixpanel and feature flags

• Aug 2020 - Mar 2022
  athenahealth
  Senior Member of Technical Staff

  Developed full stack features for clinical provider referral widget embedded in legacy UI, backed by React and GraphQL.

  • Migration of backend shared Perl services to GraphQL endpoints owned by UI teams, allowing for increased iteration speed and tooling across eight different teams
  • Modernization of legacy search clinician search features while maintaining legacy compatibility and partner agreements. 80% of clinicians continued to opt-in to the new widget

• react-three-embeddings

  Visualize movie similarity in 3D
• typesafe-react-router

  TypeScript utility helpers for typesafe routing in React
• types-first-ui

  typesafe Redux wrapper

Let's Connect

• twitter-x /
• github /
• linkedin /
• ksaldana1@gmail.com