# Clayton R.

> Founder & Product Engineer | Build → launch → iterate → own outcomes

Location: Bangkok City, Thailand
Profile: https://flows.cv/claytonr

Currently building Headcount & OtterHalf!

OtterHalf iOS Open Beta: https://testflight.apple.com/join/6m5cqsEf

## Work Experience
### Senior Software Engineer @ Choiceful
Jan 2025 – Present
- Inherited a vibe-coded prototype and transformed it into a scalable, maintainable codebase using tRPC, Prisma/Postgres, and Supabase.
- Designed and shipped a complete onboarding flow, improving user activation and retention.
- Built additional treatment program chapters and therapeutic features including a delay timer for OCD intervention.
- Established patterns and architecture to enable faster future development and reduce technical debt.

### Founder @ OtterHalf
Jan 2024 – Present
Join the beta: https://testflight.apple.com/join/6m5cqsEf

### Lead Software Engineer @ Pelicargo
Jan 2023 – Jan 2025
Optimized system reliability: Slashed technical debt by 50%—refactored legacy Node/Express services and migrated to Prisma/Postgres—cutting production incidents by 60%.

Architected critical integrations: Built scalable tRPC endpoints and real‑time connections to airline APIs, enabling accurate rate quoting and shipment tracking across global carriers.

Boosted onboarding conversion: Overhauled signup flows and ran A/B tests, lifting activation rate by 30% and driving a 20% increase in monthly recurring revenue.

Championed engineering excellence: Established CI/CD pipelines, code‑review standards and best practices; mentored five interns and junior engineers to accelerate team velocity and ownership.

Tech Stack: Node/Express, Prisma, Postgres, tRPC, React, Vite, Chakra UI

Link: https://app.pelicargo.com

### Artificial Intelligence Engineer @ EasyGen
Jan 2024 – Jan 2025
1. Migrated a no-code builder (Memberstack) into modular tRPC services using Prisma, Postgres, and Supabase—reducing API response times and accelerating feature delivery.

1. Replatformed the front end to Next.js, TailwindCSS, and ShadCN, improving maintainability for rapid iteration.

1. Designed and launched AI-driven tools—headline generator, profile analyzer, lead-gen workflows—using OpenAI, Anthropic, Perplexity, and Replicate.

1. Partnered with founders on prompt engineering and UX to improve AI output quality and increase conversions.

### Founding Engineer @ teachme.to
Jan 2021 – Jan 2023
Built the entire platform from zero: wrote 100% of the first two years’ code—Node/Express backend, Prisma/Postgres ORM, GraphQL APIs and React/Vite/Chakra UI front end.

Launched MVP in under 3 months: established fast, data‑driven iteration cycles—A/B testing features and optimizing CAC, LTV and CTR—to rapidly validate product‑market fit.

Scaled to profitability in <2 years: grew a two‑sided marketplace from concept to a sustainable business, connecting hundreds of coaches with thousands of learners.

Owned product & ops: set the roadmap, streamlined onboarding flows, defined OKRs and drove cross‑functional execution to boost engagement and retention.

Engineered reliability & velocity: designed CI/CD pipelines and automated test suites that cut release cycles by 50% and delivered 99.9% uptime.

Drove fundraising success: co‑led pitch strategy and technical due diligence through multiple seed rounds, securing growth capital to fuel expansion.

### Head of Engineering @ teachme.to
Jan 2021 – Jan 2023
1. Built the entire platform from scratch—100% of the first two years of code—using Node.js, Prisma, Postgres, GraphQL, React, and React Native.

1. Launched MVP in under 3 months; scaled a two-sided marketplace from concept to profitability in under two years.

1. Defined product roadmap, led cross-functional execution, and optimized CAC, LTV, and CTR to validate product-market fit.

1. Designed CI/CD pipelines and automated tests that cut release cycles by 50% and ensured 99.9% uptime.

1. Co-led pitch strategy and technical due diligence across multiple seed rounds, securing $2.75M in capital.

### Lead Software Engineer @ Ministry Pass
Jan 2021 – Jan 2021 | Remote

### Senior Software Engineer @ HOMEE, Inc.
Jan 2020 – Jan 2021 | Remote
Revamped a fractured codebase: Migrated legacy React Native app from Flow to TypeScript and modular architecture, instituted PRs and code reviews, and massively reduced technical debt.

Orchestrated team transition: Hired and onboarded 4 US‑based mobile engineers to replace offshore support, boosting feature delivery velocity tenfold.

Embedded agile rigor: Launched Jira‑driven sprint planning, standups and cross‑team syncs. Executives then had real insight into product delivery.

Aligned product & engineering: Partnered with design, backend and external vendors to ship core home‑services features on schedule, lifting user engagement, and laying groundwork for the pivot to B2B insurance claims.

Tech Stack: React Native, TypeScript, REST APIs

### Mobile Engineer @ HOMEE, Inc.
Jan 2020 – Jan 2021
1. Migrated legacy React Native app from Flow to TypeScript and modular architecture, reducing technical debt.

1. Hired and onboarded four US-based mobile engineers to replace offshore support, increasing delivery velocity.

1. Introduced code reviews, PR workflows, and Agile practices to strengthen engineering quality.

### Software Engineer @ Circadian Risk Inc.
Jan 2018 – Jan 2020
1. Built core features for a physical security risk assessment platform using React and React Native.

1. Implemented complete offline support with CouchDB and automatic syncing, including migration paths for data drift.

1. Built interactive CAD-style blueprint rendering for mapping security assets on building layouts.


## Education
### Self-Taught Devs


## Contact & Social
- LinkedIn: https://linkedin.com/in/claytonray

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Source: https://flows.cv/claytonr
JSON Resume: https://flows.cv/claytonr/resume.json
Last updated: 2026-03-29