01
Platform engineering
Multi-tenant SaaS foundations
Backend architecture spanning identity, authorization, subscriptions, entitlements, external integrations, and production operations.
- TypeScript
- Node.js
- Firebase
- Stripe
- GCP
Backend & cloud engineer · Providence, Rhode Island
I build systems that survive contact with reality.
I’m Jay Tavares—a developer of web applications and longtime hacker of electronic things. I design, ship, and operate APIs, SaaS platforms, integrations, and data systems.
system / production healthy
14:22:04 edge case reproduced
14:37:19 observability improved
15:03:42 boring fix deployed
The best infrastructure eventually becomes unremarkable.
Currently you’ll find me working with
- TypeScript
- Node.js
- Firebase
- Google Cloud
- Temporal
Selected work
Backend ownership, from first model to production incident.
My work tends to live behind the interface: the services, data flows, and operational decisions that make a product dependable.
02
Data engineering
From messy inputs to useful data
Ingestion and reporting pipelines that turn emailed spreadsheets and third-party APIs into governed, testable warehouse data.
- Cloud Storage
- Airbyte
- BigQuery
- dbt
03
Backend systems
Real-estate listings API
A documented, tested platform for listings synchronization, authentication, saved searches, and production delivery on Kubernetes.
- Python
- Django REST Framework
- PostgreSQL
- GKE
04
Developer experience
Tooling that removes friction
Monorepo boundaries, CI pipelines, release automation, typed integrations, and open-source improvements for Nx and Node.js workflows.
- Nx
- GitHub Actions
- CircleCI
- npm
A wider toolkit
Different problems call for different tools.
My broader toolkit has been shaped by a range of client projects. I care less about collecting technologies than about understanding where each one earns its place.
- Nx
- Python
- Django REST Framework
- PHP
- Laravel
- Drupal
- PostgreSQL
- MySQL
- BigQuery
- dbt
- Airbyte
- Docker
- Kubernetes
- Helm
- Stripe
- CI/CD
Electronic things
Sometimes the backend has wires.
ATtiny85 · C++ · product design
Cinesense
A tiny hardware adapter that automatically controls Bose Cinemate speakers by sensing an audio signal.
Processing · Java · physical computing
WestSideLights
A networked holiday-light installation that translated public Twitter commands into animated lighting programs.
1891
Off the clock
I live on the West Side of Providence with my wife and daughter. If you want to get me going, ask about my doorknobs—or one of the electronic things I’ve built.
Let’s talk
Have a difficult backend problem?
I’m currently open to backend and platform engineering opportunities.