Senior FullStack Engineer (7+ Years)

Marvellous Posu

Building scalable & user-centric products.

Full Stack Engineer, Frontend specialist architecting high-performance applications. Expertise in React, Next.js, Node.js, and TypeScript. Previously secured $2.5M+ TVL and scaled platforms for 5,000+ active users.

7+
Years
50+
Projects
$2.5M+
Tvl secured
50k+
Users Impacted
View Selected WorkDownload CV

Technical Arsenal

I don't just use frameworks; I build scalable architectures. Specializing in the React ecosystem, Web3 integration, and performance optimization.

Core Frontend

My primary stack for building complex, interactive applications.

React.jsNext.jsTypeScriptJavaScript (ES6+)HTML5CSS3

Web3 & Fintech

Experience integrating wallets, handling on-chain transactions, and building P2P marketplaces.

WagmiViemEthers.jsWeb3.jsSmart Contract IntegrationDynamicPrivy

UI Engineering

Tailwind CSSFramer MotionMaterial UIChakra UIResponsive Design

State & Data

Redux ToolkitZustandReact QueryContext APIGraphQLWebsockets

Reliability & Perf

Ensuring code quality via robust testing and optimizing for Core Web Vitals.

JestCypressRTLCI/CDGitHub ActionsDockerSEO Optimization

Tools

GitVercelNetlifyViteWebpack

Labs & Side Projects

My sandbox for continuous learning and demonstrating specialized skills in Web3, performance, and advanced UI/UX concepts.

Solana Escrow dAPP

EscrowDAPP is a secure peer-to-peer escrow service built on Solana that enables trustless SOL transfers between two parties. Users can create escrow accounts where funds are locked until the designated recipient claims them, or the depositor cancels the transaction

Next.jsTailwindRustAnchorWeb3js
View Demo Code

Serverless Performance Benchmark

A lightweight utility that benchmarks the latency and cold-start times of various serverless providers (Vercel, AWS Lambda).

Node.jsTypeScriptAWS LambdaCI/CD
View Demo Code

Custom Component Library (dorn-ui)

A private library of custom, accessible React components built from scratch, focusing on Framer Motion animations.

React.jsFramer MotionStorybookA11y
View Demo Code

Find the full list of repositories on my GitHub Profile

Career Trajectory

Professional Experience

Lead Frontend Engineer

DexPay•Jan 2023 - Present

Architected a decentralized P2P marketplace across EVM & non-EVM chains.

  • Built multi-wallet onboarding for 150+ wallets.
  • Secured $2.5M+ in Total Value Locked (TVL).
  • Implemented WebSocket chat for 5,000+ active users.
  • Integrated on/off-ramp automation & crypto-fiat escrow.
TypescriptNext.jsRedux ToolKitMaterial UIWebSocketsViemWagmiDynamic

Lead Frontend Engineer

Syarpa•June 2021 - Dec 2022

Early engineering lead for a cross-border money remittance platform.

  • Helped secure $500K in company funding.
  • Led a team of 3 engineers and modernized the codebase.
  • Developed fiat & crypto wallets with bank-grade security.
  • Migrated legacy views to Next.js/TypeScript for performance.
TypescriptNext.jsTailwindRedux Saga

Senior Frontend Engineer

Intercity•Jan 2021 - Mar 2021

Core developer for Nigeria's largest online bus-ticketing platform.

  • Onboarded 100+ operators to the digital platform.
  • Built an Admin Dashboard for 1,000+ daily users.
  • Enabled complex search, compare, and booking flows.
JavascriptReactReduxChakra UI

Full-Stack Engineer

Physiona•Jun 2020 - Jan 2021

Developed Nigeria's first tele-physiotherapy platform.

  • Built secure video consultation features.
  • Developed full-stack MERN application (MongoDB, Express, React, Node).
  • Implemented patient-therapist payment flows.
JavascriptReactNode.jsExpressMongoDB
Available for New Opportunities

Ready to scale your engineering team?

I specialize in building high-performance financial applications and decentralized systems.

/marvellous-posu/dornmarvView Resume

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