Sean Gil

Senior Software Engineer

Austin, TX

sean.h.gil@gmail.com
seangil.com
github.com/sean35mm
linkedin.com/in/seanhgil
@doughydev

Experience

Nov 2025 — Now
Senior Software Engineer
Hammer Media

- Applied AI Engineering from product requirement, build, and delivery - Currently building out the DollarWise platform from a fresh rewrite using Vue, Laravel, Supabase, and more! - Built the mobile and web apps as well as the payments infrastructure via Stripe and RevenueCat

Jan 2024 — Nov 2025
Software Engineer, Frontend Lead
Perigon

- Leading frontend efforts for the first B2C Platform, focusing on the agentic Signals platform - Planned and constructed the frontend architecture, taking it from a React 16/JS application to Next.js with TypeScript - Built a RAG server in conjunction with vectorized developer documentation in a component generation tool that allowed design to build production ready React components in natural language

Jul 2023 — Jan 2024
Software Engineer
Next Phase Solutions (Acquired by Naviant)

- Built robust standalone applications and solutions integrated into government systems, leveraging technologies like TypeScript, React/NextJS, and Node. Constructed system design and architecture for large conversions of relational databases, namely PostgreSQL - Facilitated client-focused discovery sessions as the Engineering SME, successfully gathering business requirements and designing bespoke solutions for closed system environments for enterprise and government clients, namely the State of Florida HSMV.

Jan 2023 — May 2023
Software Engineer
ActiveProspect

- Developed the internal SSO accounting and client management application within the ‘Accounts’ team, employing Vue3, Nuxt.js, and Ruby on Rails to streamline user management, billing, and product access processes.

Aug 2021 — Oct 2022
Full Stack Developer
Givinga

- Migrated Givinga's white label platform from React 12 to Next.js with TypeScript, utilizing PostgreSQL and AWS architecture - Built the internal support tool using Airplane.dev (acquired and shutdown by Airtable) to allow non-developers in the company to fulfill client requests without using engineering resources

Jul 2018 — Jan 2021
Senior Vice President, Investigations
Vcheck

- Collaborated with offshore development group to implement logical tools for the company’s client portal, increasing the overall on-time payment rate and communication between the server and our clients by over 100% - Administered due diligence background investigations on both individuals and entities for the purposes of employment, mergers and acquisitions, government transactions, and business dealings involving multimillion dollar projects (40 indirect reports, 8 direct reports)

Oct 2011 — Oct 2019
Human Intelligence Collector, Specialist
United States Army

- Orchestrated multi-disciplinary intelligence operations for the 314th Military Intelligence Battalion by expertly managing various unit databases during five years of annual training in San Antonio, TX, leading to the success of operations conducted by 3 letter agencies. - Collaborated closely with the Defense Intelligence Agency and other key agencies, executing and supporting vital CONUS missions from multiple Joint Regional Intelligence Centers (JRIC) and strengthening inter-agency relationships. - Held a Top Secret/Secret Compartmentalized Information security clearance (2012-2019) to support Joint Special Operations Command

Aug 2017 — Sep 2018
Private Investigator/Regional Coordinator
iUnlimited Investigative Services Inc.

- Served as a Private Investigator, Regional Training Manager (Southwest Region), and Coordinator at iUnlimited, demonstrating versatility and adaptability in various roles - Single-handedly developed and delivered comprehensive LMS for new and existing investigators, enhancing their skillsets and performance - Managed scheduling and resource allocation for the southwest region, ensuring optimal coverage and utilization of investigator skills and expertise

Skills

JavaScript • Next.js • TypeScript • Node • Java • Ruby • AWS • SQL • Mongo • NoSQL • React • Vue • Rails • C# • Postgres • MySQL • LangFuse • VectorDB • GraphQL • Human Intelligence • Intelligence Operations • Open Source Intelligence • Interrogations • Private & Corporate Investigations • Due Diligence • KYC • SBL • Retool • Auth.js • Supabase • Convex • RAG

Projects

Founder / Engineer 2025
OpenCV

Building the app you are using right now :)

Software Engineer 2024
Mentors.vet

Peer to peer mentorship network built as a drop in replacement for the legacy platform Veterati. Currently a WIP.

Education

Nov 2012 — Apr 2013
Intelligence Studies
Cochise College

- Operational intelligence studies for military and agency specialties in the United States - Specialized in human intelligence (HUMINT) operations, specifically in relation to joint special operations command

Volunteering

Jan 2021 — Now
Industry Mentor
BrainStation
May 2021 — Nov 2023
Technology Mentor
Streetwise Partners

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