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Hello
I'm Onyedikachi Emmanuel,
Full-stack developer

I build performant web applications, AI integrations, and digital products.

WHAT I CAN DO FOR YOU

My Services

End-to-end technical solutions spanning modern web interfaces, robust backend architecture, virtual assistance, and IT maintenance.

/01

Frontend Development

I craft responsive and dynamic web interfaces using modern technologies like React, Next.js, and TypeScript. From pixel-perfect designs to seamless user experiences, I transform concepts into high-performance web applications that engage and delight users across all devices.

Available for hireLearn more →

/02

Backend Development

I design and build secure, scalable, and high-performance backend systems using technologies like Node.js, Express, Laravel, RESTful APIs, and databases such as MySQL, PostgreSQL, and MongoDB. From authentication and business logic to data handling and API integrations, I ensure reliable server-side solutions that power modern web and mobile applications.

Available for hireLearn more →

/03

Virtual Assistant

I provide comprehensive administrative support including email management, scheduling, data entry, research, and document preparation. With strong organizational skills and attention to detail, I help streamline your workflow and boost productivity so you can focus on what matters most.

Available for hireLearn more →

/04

Computer Technician/Operator

Experienced in hardware troubleshooting, system maintenance, software installation, and computer assembly. I ensure optimal performance of computer systems through preventive maintenance, diagnostics, and repairs, while managing data backup and system operations efficiently.

Available for hireLearn more →

Recommendations

What colleagues and clients say about working with me

"Working with Dikachi was a game-changer. His attention to detail and ability to solve complex UI challenges elevated our entire product. She brings a rare combination of visual creativity and technical understanding that is hard to find."

Okechukwu Somto

Co-Founder | CTO at Osmaxin Developers

Verified

"An exceptional developer who consistently delivers high-quality work. His ability to transform complex requirements into intuitive user experiences is remarkable. She's a true asset to any team."

Godwin Nwochie

Co-Founder at Osmaxin Developers

Verified

"Collaborating with Dikachi has been an absolute pleasure. His technical expertise combined with his creative problem-solving skills made our project a huge success. He goes above and beyond every time."

Ezeobi Kingsley

Senior Backend Developer at oneDosh

Verified

My Journey

From curiosity to code

The Beginning

My journey into tech started in 2017, after my senior secondary school. I had zero knowledge of computers or programming at the time. I originally wanted to study Medicine or any medical-related course, but unfortunately, I had a D7 in Biology. I think that was when my mindset started to shift. I needed to do something else that aligned with my WAEC results.

I can’t really remember who suggested it to my mom, but someone told her I should go and learn a skill. I told my mom I wanted to learn phone repairs. We were already doing research and even visited a phone repair shop to register. Then a man from my village came around. I don’t know what conversation he had with my mom, but he told her I should learn computer repair instead. My mom agreed, and that was it. We decided to try that out, and the search for where I would learn it began.

We went to Nsukka town, which wasn’t far from my place. We went straight to Ogige Market. There was a computer and phone repair line there at the time, before it was moved. We met a man who had a shop and some apprentices learning repairs. He told us it would cost 45k to learn. After that, we went to another shop and met the man who eventually taught me the work. The place was called MicroSpeed Ltd. He told us it was 40k.

Accommodation became a problem, but he offered me a place to stay in his home. That was how everything started. I began learning and fell in love with computers. I completely forgot about anything medical.

Later on, I applied for JAMB and got into school as a Computer Science student. That was where I met Okechukwu Somto Stanley, who was the NACOS president at the time. One day, he called for students who were interested in learning programming. I attended, and it has been a ride since then.

Today, I’m proud to call myself a software developer. And honestly, the journey is more than this story.

"The best way to predict the future is to create it. And I realized I wanted to be part of building that future."

Where I Am Now

Visit osmaxin.com

osmaxin.com

I currently work with Osmaxin Developers, a software agency where we build custom web and mobile apps that align with your business goals user-friendly, scalable, and built for growth.

From concept to launch, our expert team turns ideas into digital realities with precision and care.

Innovative Digital Experience

A curated collection of web applications.

Callik

Senior Frontend

Customer-facing storefront for an African fashion e-commerce and social commerce platform operated by Callik Innovative and Technologies Ltd, connecting customers with designers, tailors, and fashion merchants across 15+ countries.

Next.jsReactTypeScriptTailwind CSSTanStack QueryZustand

Live Demo

EduZone

Full-Stack

A comprehensive tutoring marketplace connecting 300+ teachers, 100+ students, and 50 partners. Features secure wallet management, payment gateways (Paystack/Flutterwave), real-time messaging, and session scheduling.

PHPLaravelLivewireTailwind CSSAlpine.jsMySQLPaystackFlutterwaveDocker

Live Demo

Trarrk

Lead Backend

Special education platform featuring a NestJS backend with multi-tenant MongoDB, an OpenAI GPT-4o-mini powered IEP generation engine, real-time behavioral tracking, and automated PDF/CSV reporting.

NestJSMongoDBOpenAI APIPuppeteerTypeScriptNode.js

Live Demo

Cogrea

Frontend

AI-powered career management and skill verification ecosystem. Features a secure payment gateway with Auth0 OAuth2, Node.js/FastAPI backend, automated GitLab CI/CD, and AWS infrastructure.

ReactTypeScriptNode.jsFastAPIAuth0DockerAWS

Live Demo

Scuib.AI

Full-Stack / AI

AI job matching platform with an intelligent recommendation engine that analyzes candidate profiles and connects them with optimal career opportunities.

Node.jsReactTypeScriptOpenAI API

Live Demo

Let's build something amazing together

Currently open for freelance projects and full-time opportunities. I specialize in creating immersive digital products that balance aesthetics and performance.

View Resume (PDF)

EXPERIENCE_EXPLORER

MILESTONES

2026 - Present

Senior Backend @ KodeHauz

2026 - Present

Senior Frontend @ Callik

2024 - 2026

Lead Backend @ Trarrk

2023 - Present

Frontend @ Cogrea

2022 - Present

Full-Stack @ Eduzone

status.log

Currently open to Frontend, Backend and FullStack Roles.

const companiesLed = await fetchCompanies();

Companies & Roles

Organizations and technology teams where I have delivered high-impact engineering solutions.

~/companies/kodehauz.tsx

active// 01

Senior Backend Engineer

@ KodeHauz

Remote

Feb 2026 - Present

[01]

Auth system: Architected multi-role JWT authentication with NestJS, covering Admin flows and environment-level secret key verification.

[02]

Database: Engineered PostgreSQL/Prisma schemas with full type safety; resolved complex migration conflicts across environments.

[03]

CI/CD: Stabilized GitHub Actions pipelines, cutting build failures by 40% through environment configuration fixes.

[04]

API: Standardized API documentation with Swagger/OpenAPI for frontend teams across all endpoints.

Tech Ecosystem

NestJSNode.jsPostgreSQLPrismaGitHub ActionsSwagger/OpenAPIJWT

~/companies/callik--formerly-alphalli-.tsx

active// 02

Senior Frontend Developer

@ Callik (formerly Alphalli)

Remote

Feb 2026 - Present

[01]

Customer platform: Owned the customer-facing side of a multi-sided e-commerce platform (customer, merchant, admin) built with Next.js, React, TypeScript, and Tailwind CSS.

[02]

Data layer: Replaced a custom fetch client with Axios and TanStack Query, adding caching, request deduplication, and explicit loading, error, and empty states.

[03]

State management: Built a persistent global cart with Zustand and fixed SSR hydration mismatches using a hydration-guard pattern.

[04]

Design system: Moved styling to semantic CSS-variable tokens and corrected toast contrast for accessibility across light and dark modes.

Tech Ecosystem

Next.jsReactTypeScriptTailwind CSSTanStack QueryZustandAxios

~/companies/trarrk--special-education-platform-.tsx

// 03

Lead Backend Developer

@ Trarrk (Special Education Platform)

Remote

Jan 2024 - Jan 2026

[01]

AI integration: Built an OpenAI GPT-4o-mini powered IEP generation engine, automating educational goal creation for teachers.

[02]

Architecture: Designed a scalable multi-tenant MongoDB system with strict data isolation across organizations, therapists, and parents.

[03]

Real-time events: Built a high-frequency behavioral tracking system with automatic student progress updates via custom API.

[04]

Reporting: Automated PDF/CSV report generation using Puppeteer and Handlebars for behavioral and assessment data.

Tech Ecosystem

NestJSMongoDBOpenAI APIPuppeteerHandlebarsTypeScriptNode.js

~/companies/cogrea.tsx

active// 04

Frontend Developer

@ Cogrea

Remote

Apr 2023 - Present

[01]

Payment UI: Built React/TypeScript frontend for a secure payment gateway with Auth0 OAuth2, connecting to a Node.js/FastAPI backend.

[02]

CI/CD & Cloud: Managed GitLab CI/CD pipelines and AWS deployments, coordinating frontend releases with infrastructure teams.

Tech Ecosystem

ReactTypeScriptNode.jsFastAPIAuth0GitLab CI/CDAWS

~/companies/eduzone.tsx

active// 05

Full-Stack Developer

@ Eduzone

Awka, Nigeria

Mar 2022 - Present

[01]

Full-stack build: Built and maintain a tutoring marketplace (300+ teachers, 100+ students, 50 partners) with PHP, Laravel, Livewire, Tailwind CSS, Alpine.js, and MySQL, deployed with Docker.

[02]

Payments & wallets: Integrated Paystack, later migrated to Flutterwave; fixed critical wallet transaction bugs with idempotency, ensuring 100% user balance accuracy.

[03]

Backend: Laravel Passport authentication, queued jobs, scheduled tasks, form-request validation, and PHPUnit tests.

[04]

Real-time chat: Developed a Wirechat messaging system with Web Push notifications, boosting re-engagement by 25%.

Tech Ecosystem

PHPLaravelLivewireTailwind CSSAlpine.jsMySQLPaystackFlutterwaveDockerPHPUnit

const resume = await fetchResume();

Resume

dikachi-dev@resume: ~

➜~catresume-overview.txt

ONYEDIKACHI EMMANUEL — Full-Stack Engineer

Full-Stack Engineer with 5 years of hands-on experience building and shipping web applications across Fintech, Edutech, and AI. Strong on backend (NestJS, Node.js, Laravel, PostgreSQL) and frontend (React, Next.js, TypeScript, Livewire).

Track record of building payment and wallet systems, multi-tenant architectures, AI-driven automation, and real-time features, often owning both layers of a product.

Education: Higher National Diploma & National Diploma in Computer Science (Federal Polytechnic, Oko)

Core Stack: Node.js · NestJS · Laravel · React · Next.js · TypeScript · AI Integration

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Let's Build
Something Together

I'm always open to discussing new projects, creative AI ideas, or opportunities to be part of your visions. Feel free to reach out through the form or my social media.

Facebook

Instagram

TikTok

emmanuelnnadi097@gmail.com

Remote / Nigeria

Buy Me a Coffee

Support my work and fuel my passion for creating exceptional digital experiences! Your contribution helps me continue building amazing projects and sharing knowledge with the community.

Buy Me a Coffee

Every coffee helps me:

☕ Create More Content

🚀 Build New Projects

💡 Share Knowledge

HelloI'm Onyedikachi Emmanuel,Full-stack developer

My Services

Frontend Development

Backend Development

Virtual Assistant

Computer Technician/Operator

Recommendations

Okechukwu Somto

Godwin Nwochie

Ezeobi Kingsley

The Beginning

Where I Am Now