AjeboDev

my name is

Fredrick
Anyanwu

Available for new work

Backend engineer · APIs & distributed systems

I build the systems behind products — gateways, services, queues, and data stores that stay reliable under load.

View systemsContact

Selected systems

Built end to end

Microservices, developer tools, and ML-backed backends — architecture first, then the code that keeps them running.

01
SystemsGateway → Auth → Property → Media → …

PropSpaceX

Microservice real-estate platform combining Web2 and Web3 — Node.js, MongoDB, PostgreSQL, and gRPC, with Ethereum ownership verification and hybrid email/wallet auth.

Node.jsgRPCMongoDBPostgreSQLEthereum
02
ToolsDesktop App → SQL Client → SQLx → Cross-Platform

OpenRDB Studio

Free, open-source, cross-platform desktop GUI for relational databases — Rust, Tauri, React, and TypeScript with SQLx for type-safe async access.

RustTauriReactTypeScriptSQLx
03
MLSignal Ingest → ML Models → Decision API → Postgres

MarketLens AI

AI-powered stock decision support that analyzes market trends and real-world signals — FastAPI, Python, Random Forest, LightGBM, and PostgreSQL.

FastAPIPythonPostgreSQLRandom ForestLightGBM
All work

Focus

Where I spend depth

01

API & service design

REST, gRPC, auth, rate limits, and contracts that other teams can trust.

02

Distributed backends

Queues, retries, DLQs, and event flows that survive partial failure.

03

Data & performance

Schema design, query paths, caching, and the tradeoffs that keep latency honest.

Building something that needs a solid backend?

Open to contract work and full-time roles on systems where reliability actually matters.

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