Claude Code
AI & Agentic
Runs my six-agent SDLC pipeline, from planning to code improvement.
Ebenezer Osei-Bonsu
AI-Native Software Engineer.
Senior QA Engineer · Systems Implementation Specialist
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Intro transcript
Hi, I’m a technology enthusiast and results-driven AI-Native Software Engineer, Senior Quality Assurance Engineer and Systems Implementation Specialist with a background in codebase diagnostics, software programming, and software testing.
Proven capability to maintain code integrity, ship new enterprise-grade features, and scale applications. I am also capable of working as an AI engineer and a Cybersecurity specialist.
01 — About
Hi, I’m Ebenezer.
I’m a technology enthusiast and results-driven AI-Native Software Engineer, Senior Quality Assurance Engineer, and Systems Implementation Specialist passionate about leveraging technology, automation, and intelligent systems to solve complex problems. I bring a quality-first approach to software development, codebase optimization, test automation, and the delivery of scalable, reliable applications. With a forward-thinking mindset, I continually expand my capabilities in AI engineering and cybersecurity, exploring innovative ways to build smarter, more resilient, and impactful technology solutions.
I’ve built, tested and launched systems in healthcare, finance, natural resource governance and the public sector.
EO
ENGINEER IDPortfolio · 2026
EBENEZER OSEI-BONSU
AI-Native Software Engineer
Senior QA Engineer · Systems Implementer
- CODE
- EOB-0418
- DEPT
- Technology
- VALID TILL
- Indefinitely
Hover to turn · drag to spinTap, hold or swipe to turn
What I am
- AI-native engineer. Builds with a six-agent SDLC pipeline.
- Senior QA engineer. Playwright, Maestro, CI/CD gates.
- Systems implementer. Migrations, multi-tenant rollouts.
- Accessibility minded. axe-core checks in the pipeline.
- Security aware. ISC2 Certified in Cybersecurity.
Quick facts
- Based in
- Texas, USA
- Degree
- BSc Information Technology
- Major
- Software Programming
- School
- Accra Institute of Technology, 2019
- Now
- Independent AI-native work
- Focus
- QA · AI · Systems
Build it fast with agents. Prove it holds before it ships.
02 — Skills
The periodic table of my stack.
31 elements in six families, all from my day-to-day work. Hover or focus a tile to see its logo, or pick a family to light it up.
- AI & Agentic
- Testing & QA
- Frontend
- Backend
- Database & API
- DevOps & Tools
Cursor
AI & Agentic
AI-assisted editing and refactoring.
Codex
AI & Agentic
Agentic coding and review.
ChatGPT
AI & Agentic
Research, drafting and breaking problems down.
Multi-Agent Orchestration
AI & Agentic
PM, UI/UX, Dev, Code Reviewer, QA and Code Improvement agents, in sequence.
Context Engineering
AI & Agentic
Giving agents the right docs, rules and memory.
Playwright
Testing & QA
End-to-end regression suites at Devnest and Fido, and on the Dialysis site.
Vitest
Testing & QA
Unit and component tests on the Dialysis site.
React Testing Library
Testing & QA
Component tests on the Dialysis site that catch regressions early.
Maestro
Testing & QA
Mobile test flows for the Fido App.
axe-core
Testing & QA
Automated WCAG checks inside the pipeline.
Postman
Testing & QA
API testing for integrations and data migrations.
UAT
Testing & QA
Supporting user acceptance testing and production validation.
React
Frontend
Component-based interfaces.
TypeScript
Frontend
Typed front-end code.
JavaScript
Frontend
The language under the web.
HTML5
Frontend
Semantic, accessible markup.
CSS3
Frontend
Layout and responsive styling.
Tailwind CSS
Frontend
Utility-first styling.
Next.js
Frontend + Backend
Full-stack React framework, for the interface and the server side. This portfolio runs on it.
Python
Backend
Serverless backend on the Dialysis site.
Supabase
Database & API
The database behind the Dialysis site’s intake and scheduling.
PostgreSQL
Database & API
The database behind Supabase.
SQL Server
Database & API
Data migrations and multi-tenant setups at Devnest.
REST API
Database & API
Designing and testing REST APIs, including on the Dialysis site.
CI/CD
DevOps & Tools
Test gates wired into delivery pipelines.
Git / GitHub
DevOps & Tools
Version control and code review.
Jira
DevOps & Tools
Issue tracking and QA reporting at Fido.
Slack
DevOps & Tools
Team communication at Fido.
Asana
DevOps & Tools
Project tracking.
Trello
DevOps & Tools
Task boards.
03 — Selected work
Things I’ve worked on.
Six systems across healthcare, forestry governance, fintech, public finance and careers. Each one says who did what. Hover, click or tap a panel to open it.
01 · Healthcare · Independent
Dialysis Facility Website Plus Global Dialysis Home Intl.
Ownership: Solo · AI-native
A full-stack website for Plus Global Dialysis Home International, with patient intake registration and an appointment scheduler. I built it end to end with my six-agent AI pipeline.
My role: Sole engineer, AI-native, using my six-agent pipeline.
- Secure patient intake and an appointment scheduler on a serverless Python backend with Supabase.
- Playwright for end-to-end journeys, plus Vitest and React Testing Library component tests.
- axe-core accessibility audits built into the pipeline, for WCAG compliance.
- Next.js
- TypeScript
- Supabase
- Python
- Playwright
- axe-core
- Claude Code
- React
- Tailwind CSS
- Vitest
- RTL
- REST API
Real screenshot
02 · Forestry governance · Devnest
Ghana Wood Tracking System and its portal ecosystem
Ownership: Team · Senior QA
The Forestry Commission of Ghana uses GWTS to track the chain of custody of timber, from its source to its destination. At Devnest, I contributed to the end-to-end quality validation and launch of GWTS and its three portals.
My role: Senior QA Engineer at Devnest Systems, as part of the delivery team.
- Validated GWTS, the FLEGT Portal, the Industry Portal and the Transparency Portal end to end for launch.
- Ran Playwright regression suites and supported data migration with Postman and SQL Server.
- Supported production deployments, and trained and supported end users through documentation and remote troubleshooting.
- Playwright
- Postman
- SQL Server
Real screenshot · seeded test data
03 · Healthcare · Devnest
Kordzi EMR paperless hospital management
Ownership: Team · Senior QA
A paperless hospital management system designed to fit a hospital’s workflow, whatever its size. At Devnest, I contributed to its end-to-end quality validation and launch.
My role: Senior QA Engineer at Devnest Systems, as part of the delivery team.
- Validated its many modules end to end for launch, as part of the Devnest team.
- Tested its integrations with other systems, as well as the EMR itself.
- Ran Playwright regression suites and supported data migration and multi-tenant setup with Postman and SQL Server.
- Playwright
- Postman
- SQL Server
Real screenshot · seeded test data
04 · Fintech · Fido
Fido App mobile lending and financial services
Ownership: Team · Senior QA
A mobile lending and financial services app used in Ghana, Uganda, Zambia and South Africa. As a senior QA engineer at Fido, I wrote automated tests and wired them into the release pipeline.
My role: Senior QA Engineer at Fido Micro Credit, as part of the engineering team.
- Introduced automated UI testing to a QA team that only had automated backend tests, using Maestro and Playwright, and brought teammates on board.
- Automated checks integrated into the CI/CD pipeline ahead of each release.
- Bug tracking in Jira, QA manuals, and support for UAT and production validation.
- Maestro
- Playwright
- CI/CD
- Jira
Real screenshot · seeded test data
05 · Public finance · Devnest
Sika Fund welfare & credit union control
Ownership: Team · Senior QA
A fund management, welfare and credit union system. Its users include the Controller and Accountant-General’s Department (CAGD), the Audit Service Final Account Union and the welfare unit of the Economic and Organised Crime Office (EOCO). At Devnest, I contributed to its end-to-end quality validation and launch.
My role: Senior QA Engineer at Devnest Systems, as part of the delivery team.
- Tested journeys that cross two connected portals, from the member portal to the admin portal and back.
- Worked through SMS one-time-password retrieval inside automated tests.
- Ran Playwright regression suites and supported data migration and multi-tenant setup with Postman and SQL Server.
- Playwright
- Postman
- SQL Server
Real screenshot · seeded test data
06 · Careers · Freelance
TroveDesk one place for every application
Ownership: Freelance · Sole QA
A tracker for job applications, scholarships, grants and funding rounds, made by a small team for an individual founder. I was the team’s only QA engineer, on a freelance basis.
My role: Sole QA engineer, freelance, on a small product team.
- Tested the entire system, manually and with automated Playwright tests.
- The only QA engineer on a small team with a product manager, a developer and a UI/UX designer.
- Helped the founder feel confident releasing it to production.
- Playwright
- Manual testing
Real screenshot
Explore more work
18 systems and products
04 — Certifications
Always learning.
3 certifications across cybersecurity, project management and IT support.
- 01CC — Certified in CybersecurityISC2Dec 2024
- 02Foundations of Project ManagementGoogleNov 2022
- 03Technical Support FundamentalsGoogleAug 2022
05 — Experience
Where I’ve been.
2013
ExperienceJul 2013 – Jun 2014Assistant to an Event Organizer
Afri-Jumba Consult
- Analysed audience requirements, answered client queries and helped plan events.
2017
ExperienceJan 2017 – Jul 2019Sales and Customer Service Executive
Tech Town
- Oversaw sales, marketing and record keeping for the company’s products.
- Answered customer queries.
2019
EducationGraduated 2019BSc Information Technology
Accra Institute of Technology · Major: Software Programming
- Coursework in data structures and algorithms, systems development, object-oriented programming (Java/C++) and information systems.
2020
ExperienceJan – Sep 2020IT Personnel
Viruk Limited
- Managed the company website and supported product marketing, stock records and operational record keeping.
- ExperienceSep 2020 – Jul 2021
Zenith Direct Agent
Zenith Bank Ghana
- Handled customer queries, cards on referral, telemarketing and surveys, instant account opening, and chargeback updates.
- Helped pilot a bank policy for cards on referral and instant account opening via USSD.
2022
ExperienceJan 2022 – May 2025Senior QA Engineer | Systems Implementation Engineer
Devnest Systems Limited
- Contributed to the end-to-end quality validation and launch of GWTS and its portals, Kordzi EMR, Sika Fund, PERS and GhNRM.
- Ran software integration, large-scale data migrations and multi-tenant setups with Postman and Microsoft SQL Server.
- Maintained Playwright regression suites that caught deployment regressions before production, and supported end users through training and remote troubleshooting.
- Playwright
- Postman
- SQL Server
2025
ExperienceMay 2025 – Mar 2026Senior Quality Assurance Engineer
Fido Micro Credit Limited
- Designed and deployed automated test suites in Playwright and Maestro, integrated into CI/CD.
- Used agentic tools inside the core engineering team to audit the architecture and isolate complex runtime bugs.
- Wrote QA manuals, tracked issues in Jira, and supported UAT and production validation.
- Playwright
- Maestro
- CI/CD
- Jira
- ExperienceNow2025 – present
AI-Native Software Engineer
Independent
- Built the Dialysis Facility Website end to end with a six-agent SDLC pipeline on Claude Code.
- Building this portfolio the same way, with Playwright, axe-core and Lighthouse quality gates.
- Claude Code
- Playwright
- axe-core
Next
What’s nextYour team?
I want to help a team ship faster and safer, with AI-native engineering and real quality gates.
Let’s talk
06 — Achievements
Proud moments.
and counting
Systems & products
Contributed toSeveral systems and products across multiple industries.
18 systems and products contributed to
Counted from the projects on this site
Regulated sectors
Shipped intoHealthcare, finance, natural resource governance and the public sector.
4 regulated sectors
Kordzi EMR · Fido · GWTS · Sika Fund
Years in QA
Since 2022Since January 2022, at Devnest and then Fido.
+More than 4 years in QA
Jan 2022 – present
Agents in my pipeline
SDLC pipelineThe agents behind my AI-native projects, this site included.
6 agents in my pipeline
PM · UI/UX · Dev · Reviewer · QA · Code Improvement
Countries served
Public & privateCountries where systems I worked on are in use.
5 countries served
Ghana · Liberia · Uganda · Zambia · South Africa
Certifications
EarnedISC2 Certified in Cybersecurity and two from Google.
3 certifications
ISC2 · Google
07 — Contact