High-concurrency APIs built in Golang with goroutines and channels for maximum throughput on I/O-bound workloads.

gRPC and REST with strict interface contracts — every endpoint documented, typed, and versioned. We design APIs that teams can build against without guesswork.

Optimized I/O-bound pipelines and event-driven processing. NestJS/TypeScript backends when the ecosystem demands it — we pick the right tool, not the trendy one.

Instance-aware coordination for WebSocket presence across replicas — each server knows exactly which connections it owns, with no ghost sessions or stale state.

Atomic job claiming and scheduling with Redis sorted sets and Lua scripting. Race conditions don't exist when your locking is correct.

Event-driven cross-service communication with message brokers. Services talk through contracts, not assumptions.

Twilio Programmable Voice integration for call centers and autodialers. WebRTC audio/video with pion/webrtc for Go backends when you need full control over media.

WebSocket-based live tracking, presence, and notifications. ElevenLabs TTS integration for automated voicemail drops with natural-sounding AI voices.

Live call coaching — admin talks to agent during a call while the other party can't hear. Real-time dictation and transcription during calls.

PostgreSQL and TimescaleDB for complex queries, time-series analytics, and transactional integrity. Redis for sorted sets, streams, and high-speed in-memory operations.

Schema design and normalization as first-class engineering work. Every column is intentional, every migration is tested with rollback capabilities before execution.

High-volume migrations without downtime. Supabase integration for storage and auth when it fits the architecture.

CI/CD pipelines with GitHub Actions — every commit tested, every deployment automated. Zero-downtime deployments with staged rollouts and health checks.

Dockerized microservices running on AWS EC2 with S3 for storage and Cloudflare for delivery and protection.

Logging, metrics, and monitoring strategies baked in from day one. If we can't trace a request from ingestion to response, the system isn't complete.

TypeScript-based frontends with React, SolidJS, Next.js, and Remix. Server-side rendering, API routes, and optimized delivery for the best user experience.

Real-time UI updates via WebSockets and SSE. State management with modern patterns that keep complexity where it belongs.

Desktop applications with Wails (Go + Web frontend) — native performance with web technologies. When the browser isn't enough.