№ 04 / About
Rhay Parra
I'm from Venezuela, where I studied industrial engineering and IT in parallel and started shipping code professionally in 2012. From there I moved to Buenos Aires, where I spent five years across streaming, media, banking and telecom work for companies like Telecom Argentina and Globant, and later worked as an architect for a conversational-marketing SaaS. I'm based in Montevideo now, working remotely for US teams.
Today I split my time between two things. At Turnout, a US advocacy platform where human advocates backed by AI help people win disability claims, claim veterans' benefits, navigate healthcare and get their children the right school support, I'm the senior architect: an Nx monorepo with three Next.js apps, a NestJS backend, a Python serverless layer for AI agents, and enough third-party integrations to keep me honest. At Loxben, my own company, I build small B2B products for finance teams with a two-person team, which is a different discipline entirely — every hour has to earn its place.
What I care about is the gap between a system that works today and one that still works in three years. Most of the failures I've debugged weren't bugs in the ordinary sense; they were decisions nobody wrote down, made under constraints nobody remembered. So I write things down: decision records with the alternatives that lost, implementation plans a mid-level developer can execute without me in the room, runbooks for the setup that only happens once a quarter. It's not bureaucracy. It's how a small team stays fast after the second year.
I work best in pairs and small groups, with people who will tell me when I'm wrong and expect the same back. I'm direct in review and prefer a short, precise answer over a diplomatic one, though I try to make sure it's kind as well as correct. Outside of work I read a lot, study the humanities on my own, and practice classical piano every day.
How I work
- Write the decision before the code.
A decision record with the alternatives that lost is the only artifact that still explains the system after the people who built it have moved on.
- Team expertise beats the benchmark.
Moving a product from FastAPI to NestJS made us two to three times faster, not because NestJS is better but because we already knew it.
- Boring infrastructure, interesting product.
GuardDuty over a ClamAV sidecar, Multi-Zone over Module Federation, managed queues over clever ones — the interesting problems should be in the domain, not the plumbing.
- No errors is not the same as healthy.
If a system's failure mode is silence, instrument the silence: last-event age, expected-vs-observed counts, alarms on absence.
- Keep the exit open.
Roles live in our database, not the auth provider's metadata; the CRM sits behind a facade; each product gets its own AWS organizational unit. Migrations are cheap when you planned for them and brutal when you didn't.
- Plans should run without me.
Tasks carry acceptance criteria, schemas and test expectations, so the next person starts working instead of scheduling a meeting.
- Say it plainly.
If the code is wrong, I'll say so and why. I expect the same, and I'd rather lose an argument than ship a bad decision politely.
Skills
- Languages
- TypeScript / JavaScript
- Python
- SQL
- Bash
- Go
- Frameworks and libraries
- NestJS
- Next.js (App Router)
- React
- Nx
- Prisma
- BullMQ
- Vercel AI SDK
- LiveKit Agents
- Pydantic
- FastAPI
- AWS Lambda Powertools
- Serverless Framework
- Django
- Express
- Cloud and infrastructure
- AWS
- ECS Fargate
- Lambda
- EventBridge
- SQS
- S3
- KMS
- RDS
- CloudFront
- CloudWatch
- EMF
- GuardDuty
- Rekognition
- Bedrock
- AWS Organizations
- AWS CDK
- Docker
- Vercel
- LocalStack
- Heroku
- Firebase
- GCP
- Azure
- Data
- PostgreSQL
- Prisma
- Redis
- TimescaleDB
- DynamoDB
- MongoDB
- Integrations
- Salesforce
- jsforce
- Salesforce Pub/Sub API
- Invocable actions
- Auth0
- Kinde
- Box
- Twilio SIP
- Square
- Mailchimp Transactional
- HubSpot
- Documo
- AI
- Vercel AI SDK
- OpenAI
- Anthropic Claude
- Amazon Bedrock
- LiveKit Inference
- Deepgram
- Cartesia
- Whisper
- Azure Speaker Recognition
- Practices
- Architecture decision records
- RFC-to-phased delivery
- Approval gates
- HIPAA-conscious design
- Audit trails
- Envelope encryption
- BAA scoping
- Infrastructure as code
- Observability
- CI/CD
- Pair programming
- Planning in Linear and Notion
- Acceptance criteria
Education and certifications
Education
- Degree in Information TechnologyUniversity Institute of Technology Juan Pablo Pérez Alfonzo, Venezuela · 2010–2014
- Industrial EngineeringUniversity of Carabobo, Venezuela · 2008–2013
Certifications
- AWS Certified Solutions Architect – AssociateAmazon Web Services
- MongoDB for Node.js DevelopersMongoDB University
- Server-side Development with NodeJSHKUST via Coursera
- Front-End JavaScript Frameworks: AngularJSHKUST via Coursera
- Multiplatform Mobile App Development with Web TechnologiesHKUST via Coursera
Contact
Employed full-time; open to short consulting and architecture-review engagements.
If you have a system that has to grow up, or a decision you're not sure how to write down, [email protected] is the fastest way to reach me.