Core languages
RustTypeScriptJavaScript/Node.jsPythonGoSQL
David Oyinbo - Senior Software EngineerMississauga, Ontario
Building resilient, real-time
systems with clarity and intent.
I design distributed systems, craft custom protocols, and ship production-grade real-time infrastructure. Want to learn more about my experience?
About
I am a Senior Software Engineer with 9 years of experience building distributed systems, backend platforms, and real-time infrastructure.
My work has gradually moved from customer-facing payment products into the systems behind them. Realtime problems at Payaza and HeySummit pushed me deeper into backend and distributed systems work. Today, I own services end to end and make engineering decisions with customer experience, operating cost, and long-term maintainability in view.
Distributed systemsReal-time infrastructureBackend platformsOpen source
Skills
Backend and frontend
Actix WebTokioNestJSFastAPIDjangoVue/NuxtReact
Data and distributed systems
WebSocketsKafka/Amazon MSKRedis/ElastiCachePostgreSQLClickHouse
AI integrations
Retrieval-augmented generationLangChainOpenAIAnthropic AIChromaDBLLM evaluationRetrieval quality
Cloud and operations
AWSKubernetesTerraformDockerGitHub ActionsOpenTelemetryGrafana stackHAProxy
Engineering Log
My technical diary for things I learn while building systems that I think may be useful to other engineers.
July 21, 2026
How One New Feature in Trypema Turned Into a Major Version Release
How solving persistent monthly rate limits for Celeris led to live reads, safe conditional updates, history preservation, independent providers, and Trypema v2.
rustrate-limitingredis
June 14, 2026
On the Topic of Making Simple Useful Things (A Distributed Counter)
Counting things across multiple servers sounds trivial. It is not. A walkthrough of the design space for distributed counters, from atomic Redis scripts to per instance tracking with automatic cleanup of dead instances, and the Rust crate I built to handle all of it.
rustdistributed-systemsredis
March 22, 2026
Why I Built Trypema: Rate Limiting, Rust, and One Stubborn Problem
The story behind Trypema, a Rust rate limiting library I built while solving a real problem, and how I ended up creating a hybrid provider nobody asked for.
rustrate-limitingopen-source
Projects
Laye
Framework-agnostic RBAC library for Rust with composable AccessPolicy rules and plug-and-play middleware for actix-web and tower/axum.
RustRBACAccess Control
distkit
A Rust toolkit of distributed systems primitives backed by Redis. Strict and lax counters, instance-aware counters with automatic dead-instance cleanup, distributed locks (Mutex and RwLock), and sliding-window rate limiting.
RustRedisDistributed Systems
Trypema Rate Limiter
High-performance sliding-window rate limiting for Rust with independently built local, Redis, and hybrid providers.
RustRate LimitingRedis