Building products.Engineering systems.Solving problems that actually matter.
I'm Victor Shallangwa, a software engineer who works across product engineering, backend systems and emerging infrastructure. I build software from idea to production — and I'm particularly interested in the systems that move data, products and value.
Core Expertise
Positioned around problems and capabilities, supported by end-to-end production software.
Product Engineering
Building complete software products across web and mobile—from the user experience to the systems behind it.
React · Next.js · React Native · Expo · TypeScript
Backend & Systems
Designing APIs, application architecture and the services that power reliable software.
NestJS · Node.js · Laravel · PostgreSQL · MySQL
Transactions & Infra
Exploring the systems that move value, coordinate activity and connect distributed applications.
Payments · Blockchain · Solana · Stellar · Rust
$ cat profile.json
The
Engineer
My first line of code was in C++ when I was 10. Since then, software engineering has taken me from experimenting with small programs to building products across web, mobile, payments and blockchain.
Working across different layers of software has shaped how I think about engineering. A good interface matters—but so do the systems behind it, the data flowing through it, how it behaves under failure and whether it can reliably serve the people depending on it.
Today, I build end-to-end software while deliberately deepening my understanding of backend architecture, infrastructure, transaction systems and distributed technologies.
My goal is simple: become the kind of engineer trusted to solve increasingly difficult technical problems.
Ecosystems & Communities
I've built, contributed and worked alongside communities advancing developer ecosystems across Africa and Web3.
GitHub Activity
Selected Work
Complex software problems organized around systems, transactions, products, and developer tooling.
AgTrail
The digital identity and traceability infrastructure for African agriculture — capturing, verifying, and connecting data from farmers and fields into trusted, globally competitive supply chains.
Vortex
Autonomous Solana transaction infrastructure built in Rust, designed for low-latency execution, real-time data streaming and dynamic transaction optimization.
Solara Pay
Founded a non-custodial payroll disbursement protocol on Solana processing $600+ in global contractor payouts with sub-second settlement, bulk batching, and webhook reconciliation.
FlexPay
A production-ready checkout SDK for Solana merchants, enabling payments in any token with instant USDC settlement via the Jupiter Swap V2 engine.
Stallion
A high-performance bounty and hackathon orchestration platform built on the Soroban smart contract framework for the Stellar ecosystem.
Lens
API-first biometric attendance and spatial intelligence platform. Uses Python face_recognition 128-d encodings, FastAPI, Next.js 16, and Remotion to resolve classroom group photos and auto-sync with external SIS gateways.
Devlog
A build-in-public automation system that transforms git activity into reviewable content workflows and distributes approved updates across social platforms.
Vacuum
An automated rent-reclaim protocol that monitors Solana token accounts and safely reclaims locked rent SOL from zero-balance accounts across CLI, SDK, and Web.
Karen
Autonomous agentic wallet infrastructure for AI agents with secure, non-custodial Turnkey enclaves and transaction guardrails.
HAWKTOK
A high-performance creator marketplace connecting TikTok influencers with artists and brands. Features an automated campaign engine, secure escrow payment systems, and a real-time verification terminal.
License Guard
A robust license management system empowering software sellers to track usage, issue cryptographic tokens, and manage keys.
xCardGen
Customizable attendee card generator with drag-and-drop canvas serialization and headless SSR generation for global developer events.
Capabilities & Tools
Technologies, frameworks, and architecture paradigms applied in production and active systems engineering.
Product Engineering
01Backend Engineering
02Data & Systems
03Blockchain & Transactions
04Currently Deepening
DeepeningCurrently
A live snapshot of what I'm building, deepening, and exploring right now.
Production Software
Production software and systems that solve real operational problems.
Backend & Rust
Backend architecture, Rust and systems thinking.
Transactions & Infra
Transaction infrastructure, distributed systems and selected Web3 ecosystems.
Engineering Realities
Engineering decisions, technical lessons and the realities of building software.
Professional
History
A journey across product engineering, fintech, developer ecosystems and emerging technologies.
Full-Stack Engineer — AgTrail
Agrolinking Solutions LTDBuilding the digital identity and traceability infrastructure that gives African agriculture a verifiable, trusted data layer from farm to fork.
Remote / Abuja, Nigeria
Senior Full-Stack Developer
PayguruContributing to software systems and products operating within financial technology.
Lagos, Nigeria
Chief Technology Officer
Sarmiephoenix ConsultsLeading technical decisions and product development across client and internal projects.
Lagos, Nigeria
Developer Relations
SuperteamNG BornoSupporting developer community growth and engagement within the Solana ecosystem.
Borno, Nigeria
Developer & Marketing Support
Solana TourRemote
Software Engineer
Event Voting and Ticketing GhanaMaintained transaction-heavy event operations and built real-time voting systems.
Ghana
Web & App Developer
Endless TechnologiesBuilt high-volume e-commerce web applications and optimized relational/NoSQL databases.
Accra, Ghana
Engineering Notes
Documenting architectural trade-offs, systems thinking, and lessons learned while shipping real-world software.
What Building for Unreliable Networks Taught Me About Software
Designing digital infrastructure for field environments where cellular connectivity is a luxury, not an assumption.
I'm Learning Rust, But Not for the Reason You Think
My transition from high-level application development into low-level memory layout, concurrency, and systems thinking.
The Difference Between Shipping Features and Owning Systems
A reflection on the professional evolution from writing user-facing code to taking responsibility for data flows and failure modes.
Academic
Foundation
BSc Software Engineering
Nigerian Army University Biu
2025 - 2028 (Expected)School of Solana Graduate
Ackee Blockchain Security
Oct 2024 - Dec 2024Let's Build
Something That Matters.
I'm interested in ambitious products, difficult engineering problems and opportunities where thoughtful software can create real-world impact.