Open to opportunities

Aryaman Raj

@aryamanraj

Message

I build and operate real-time full-stack, blockchain, and cloud systems from empty repos to live users.

India

Message

What I'm looking for

I'm looking for remote contract, fractional, or project-based work where I can own full product delivery: front end, services, data, cloud infrastructure, CI/CD, and reliable real-time or on-chain systems.

I've shipped eight production systems end to end, including PayRam Core at WazirX: a self-hosted stablecoin payments gateway with sub-second p99 settlement latency and multi-region scaling.

At Closer Market, I own the Next.js client, NestJS services, PostgreSQL data layer, Solana settlement, and deployment pipeline for a live-sports prediction market. I built its WebSocket-driven market UI and real-time Solana indexer to reconcile live feeds with on-chain state inside a sub-minute window.

I also build products independently, from a solo on-chain multiplayer game that generated approximately 50k USDC profit to a TON treasury system that burned 22% of CAPSTR supply. At Catoff Gaming, I designed distributed real-time architecture and maintained 99.9% uptime across two years.

My work spans Go, TypeScript, Rust, AWS, Kubernetes, Terraform, observability, Solana, EVM, and TON. I'm available remotely for contract, fractional, and project-based work where I can take ownership from product build through reliable production operations.

Experience

Work history, roles, and key accomplishments

Current

Founding Full Stack Engineer

Current

Closer Market

Apr 2026 - Present (4 months)

Sole founding engineer on the first sub-one-minute prediction market for live sports, owning the Next.js client, NestJS services, PostgreSQL data layer, Solana settlement, and deployment pipeline. Built WebSocket-driven live market UI with sub-second update latency and engineered real-time Solana indexer and crank service.

TypeScript Next.js React NestJS Rust Solana Anchor PostgreSQL Redis WebSockets Docker Kubernetes GitHub Actions

Full Stack Engineer - Backend & Infrastructure

PayRam by WazirX

Mar 2025 - Apr 2026 (1 year 1 month)

Architected and shipped PayRam Core, a self-hosted stablecoin payments gateway in Go with sub-second p99 settlement latency. Built merchant web console in React/TypeScript and end-to-end observability with SLO-based alerting, cutting MTTR by 60%.

Go Gin TypeScript React PostgreSQL AWS EC2 RDS S3 Docker Kubernetes Helm Terraform MCP OpenAPI JWT WebAuthn Prometheus Grafana Loki OpenTelemetry

Freelance Full Stack & Smart Contract Engineer

CapStrategy

Oct 2025 - Jan 2026 (3 months)

Sole freelance engineer delivering a complete product in a 3-month engagement: TON jetton contract, automated treasury service, REST API, and live React dashboard. Wrote contract taxing 10% of transactions and built treasury bot that burned 22% of total supply.

TON TypeScript React Vite REST APIs TonAPI DeDust

Founder & Full Stack Lead

NFT Cock Fights

Oct 2024 - Dec 2025 (1 year 2 months)

Built, launched, and operated a real-time on-chain multiplayer game entirely solo, including React front end, NestJS services, Solana settlement, and infrastructure. Drew 100k+ unique visitors in launch week and generated ~50k USDC in profit over two seasons.

TypeScript React NestJS Solana PostgreSQL Redis AWS Docker Kubernetes Terraform Gitlab CI

Founding Full Stack & Infrastructure Engineer

Catoff Gaming LLC

Jan 2023 - Feb 2025 (2 years 1 month)

First engineer designing and owning the full distributed architecture for a gaming platform, including low-latency matchmaking backend, event-driven workers, and player-facing web app. Maintained 99.9% uptime across 2 years on production Kubernetes.

TypeScript React Next.js NestJS Solana PostgreSQL Aurora Redis AWS RDS S3 SNS Docker Kubernetes ArgoCD GitHub Actions

Backend Engineer Intern

Lighthouse.Storage

Jun 2023 - Jan 2024 (7 months)

Delivered three distributed services for encrypted, verifiable decentralised storage, including encryption node, IPFS indexer/gateway, and Filecoin deal engine. Cut gateway p95 latency by 40% with caching, connection pooling, and CDN tuning.