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Sergio Girado
From Colombia 08:03 PM (GMT-05:00)
$65/hr or $140,000/yr

Active 32 minutes ago


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Senior Software Engineer

Software Engineer
Available for hire
Years of experience
11+ years
Experience level
Senior
Available for
Full-time, Contract

Senior Software Engineer with experience building robust, full-stack applications and architecting domain-driven systems.

Core Focus

  • Stack: Modern TypeScript ecosystem (Node.js, React, Effect-TS, TanStack).
  • Architecture: Domain-Driven Design (DDD), functional programming, clean architecture, and scalable data modeling.
  • Specialties: Financial/pawn shop management platforms, custom backend logic, and AI agent integration (Mastra).

What I'm Looking For

Full-time, remote senior engineering roles with US-based tech teams where I can take end-to-end ownership, ship high-quality code, and tackle complex technical challenges.

Skills

No skills.

Employment History

Senior Software Engineer at Genius AI 2022 - 2026
Owned architecture decisions on feature-specific solutions at frontend level and the PR quality gate while mentoring engineers and partnering closely with product and design. Led end-to-end delivery of the Clinical Documentation module, giving med spas structured tracking of client procedures and treatments across web and mobile, built to HIPAA compliance standards. Contributed to the Gallery management system — patient photo labeling and treatment associations backed by resilient async file uploads. Ran a fully agentic delivery workflow (Claude Code, Cursor): scoped and delegated feature implementation, test suites, refactors, and bug fixes to coding agents while owning every merge — compressing ~2 months of planned work into 3 weeks.
Senior Software Engineer at Synthesis 2021 - 2022
Contributed to the full sign-up user-facing experience. Core contribution around asynchronous integrations and intensive data sync across distributed systems. Worked with: TypeScript, NextJs, React, BullMQ, MySQL, Stripe.
Software Engineer at Perficient 2017 - 2021
Technical Lead across five client projects (international logistics, WebRTC video conferencing, point of sale, programmatic advertising, custom CMS). Worked with: DDD, Angular, Ember, Node, TypeScript, .NET, and AWS.
Software Developer at NativApps 2015 - 2017
Full-stack developer promoted to Technical Lead. Designed and shipped REST APIs and mobile apps. Led delivery of a custom CRM. Worked with: Angular, TypeScript, MongoDB, SQL Server.

Education

Specialization in Software Engineering at Universidad Nacional 2018 - 2019
Systems Engineering at Universidad de Cartagena 2010 - 2017