Matias Rios
Tech Lead | Product & Platform Engineering
Bahía Blanca, AR
[email protected]Profile
I shipped my first software for a client in 2019, while still at university. I bring 5+ years in product engineering teams and today I lead engineering and architecture at Mango, across hands-on delivery, system design, and team execution. I also co-founded Geome7ric as a side venture.
Technical skills & leadership
System Design & Architecture
Microservices · REST & API design · PostgreSQL / MySQL optimization · Safe database migrations
Product Engineering
React / Next.js ecosystem · React Native / Expo ecosystem · Supabase / BaaS · Serverless & edge
Technical Leadership
Quarterly roadmap, sprints & delivery · CI/CD & release management · Code review culture · Onboarding & mentoring
Backend & Cloud Engineering
Node.js · TypeScript · NestJS · Ruby on Rails · Laravel · AWS · Docker · CI/CD · PostgreSQL · MySQL · Redis
Professional experience
Tech Lead
I lead the technical evolution of a multi-product fintech platform, connecting business strategy, architecture, and execution. My impact has evolved from hands-on implementation across payments and integrations toward designing products, standards, and delivery mechanisms that help the team operate with greater quality, security, and predictability.
- Designed Mango’s engineering system: separated roadmap, backlog, specs, and ADRs from a versioned agent layer distributed to consumer repos through PRs.
- Directed the migration of 15 functional modules from Vue 2 to Next.js while preserving critical workflows and contracts with the existing backend.
- Strengthened the reliability of financial integrations through observability, health checks, traceability, and automated rollback.
Software Engineer / Backend Lead
Kalkomey · Contract via RazorTech · HuntWise
Worked through RazorTech on HuntWise, a Kalkomey product, and progressed from backend execution to technical leadership across its API and CMS. Coordinated delivery with Product, Marketing, and engineering teams, and was promoted for leadership and technical contributions.
- Designed and implemented an integration between Kalkomey systems that enabled more efficient subscription and revenue workflows.
- Established a test suite and reusable tooling from scratch for common scenarios, improving code reliability and maintainability.
Software Engineer
Cargill · Contract via RazorTech
Provided backend engineering services to Cargill through RazorTech, delivering for an international client and evolving existing integrations and services.
- Delivered features and third-party API integrations within sprint commitments.
- Identified bottlenecks and applied test-driven solutions to fix defects and improve performance.
Full Stack Developer
Contributed to the full-stack development of a hybrid B2C mobile application and its transition from beta to production on the App Store and Google Play, working across architecture, backend, and user experience.
- Designed and developed mobile and backend workflows with Quasar (Vue.js), Laravel, and MySQL, contributing to the platform's architectural evolution.
- Prepared the application for production by resolving performance issues and managing releases to the App Store and Google Play.