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Hey there, friends! 👋🏾

I'm Abner Onchana — a full-stack and backend software developer with a love for building fast, scalable systems. I work with TypeScript/React, Python, and Rust, and I enjoy designing clean architectures and high-performance backend services.

When I’m not deep in code, you’ll probably find me exploring nature, tech blogs, or a good read.

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🌟 About Me

Full-Stack and Backend Software Engineer with strong proficiency in TypeScript/React, Python, and Rust, and extensive experience designing and implementing real-time trading platforms, distributed computing architectures, and high-performance backend systems. Demonstrated capability in building complete end-to-end solutions—from responsive client interfaces and event-driven frontends to fault-tolerant microservices, gRPC APIs, and low-latency trading engines. Skilled in cloud-native development, container orchestration, observability, systems security, and performance optimization. Proven record delivering scalable production-grade platforms deployed across Kubernetes clusters in AWS, Azure, and GCP environments.

SKILLS SUMMARY

Programming Languages

Proficient in Python, JavaScript/TypeScript, Rust, SQL, and shell scripting, with hands-on experience in both system-level programming and high-level application development.

Frontend Development

Expertise in React.js, Next.js, Vue.js, Nuxt.js, and React Native for cross-platform mobile development.
Strong command of Tailwind CSS, state management patterns, and modern UI/UX engineering for responsive, real-time interfaces.

Backend & API Engineering

Extensive experience building scalable backend systems with Node.js (Express, Next.js), Python (Django, FastAPI, DRF), and Rust (Actix Web, Axum, Warp).
Skilled in designing secure APIs across gRPC, REST, WebSockets, GraphQL, JSON-RPC, SOAP, and OData protocols.
Strong knowledge of event-driven and asynchronous architectures.

Full-Stack & Integration

Deep expertise in end-to-end system design, real-time communication (WebSockets, Kafka), and seamless mobile–web integration.
Proficient in architecting client-server communication flows, high-frequency interactions, and collaborative multi-service ecosystems.

Databases & Data Systems

Hands-on experience with PostgreSQL, MySQL, MongoDB, Redis, Cassandra, Elasticsearch, InfluxDB, and BigQuery.
Strong understanding of distributed databases, time-series analytics, optimized queries, replication, and caching patterns.