Available to hire
I’m Salifu Abdul-Mannan Ayomah, a self-taught full-stack JavaScript engineer with 2 years of professional experience building production web applications. I specialize in Node.js/Express REST APIs, PostgreSQL with Prisma ORM, and Next.js 14 frontends.
I founded Sonnet Solutions in Accra, Ghana, delivering client projects across fintech, agritech, and SaaS verticals. I own the full delivery cycle—from architecture decisions to deployment on Vercel and VPS infrastructure—and have led the architecture and redevelopment of systems like a Veterinary POS, built AdDesk, and created DogMan.
Skills
Experience Level
Expert
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Intermediate
Intermediate
Language
English
Fluent
Twi
Advanced
Hausa
Intermediate
Work Experience
Freelance Graphic Designer & Web Developer at Self-Employed
January 1, 2023 - PresentFreelance graphic design and web development work for startups and small businesses in Ghana. Responsibilities include designing brand identities, building responsive websites and web applications, creating marketing materials, designing UI layouts, and managing project lifecycles from concept to deployment. Deliverables include print-ready artwork and optimized digital projects focused on performance and user experience.
Founder & Lead Developer at Sonnet Solutions
September 1, 2023 - PresentFounded Sonnet Solutions and delivered client projects across fintech, agritech, and SaaS. Built AdDesk — a live multi-channel advertising workflow platform; led architecture and redevelopment of a Veterinary POS from PHP/MySQL to Node.js + PostgreSQL + Next.js with Supabase integration; designed DogMan, a Next.js training platform with Paystack-based lifetime access and webhook flows; established REST API conventions (versioned routes, consistent envelopes) and handled deployment to Vercel and VPS. Drove end-to-end delivery including scoping, API design, frontend implementation, and deployment.
Freelance Software Engineer at Independent
September 1, 2022 - August 31, 2023Developed web applications for local SMEs with full-stack Node.js, Express, and React. Implemented Paystack payment integrations and webhook flows for e-commerce and service clients. Managed project timelines, client communication, and post-launch support independently.
Education
WASSCE Certificate at Asanteman Senior High School
January 11, 2030 - January 1, 2022West African Senior School Certificate (WASSCE) at West African Examinations Council
September 1, 2019 - September 1, 2022ALX Africa Program at ALX Africa
January 11, 2030 - May 8, 2026Certificate in Cybersecurity at ALX Africa
January 11, 2030 - May 8, 2026WASSCE at Ghana
September 1, 2019 - September 1, 2022Certificate in Cybersecurity at ALX Africa
January 11, 2030 - May 8, 2026WASSCE at Ghana
September 1, 2019 - September 1, 2022ALX Africa program at ALX Africa · Self-Paced / Remote
January 11, 2030 - May 8, 2026WASSCE at West African Senior School Certificate
September 1, 2019 - September 1, 2022ALX Africa Program at ALX Africa
January 11, 2030 - May 8, 2026Qualifications
Certificate in Cybersecurity
January 11, 2030 - January 1, 2022Certificate in Cybersecurity
January 11, 2030 - January 1, 2022ALX Africa Program
January 11, 2030 - May 8, 2026West African Senior School Certificate (WASSCE)
September 1, 2019 - September 1, 2022West African Senior School Certificate (WASSCE)
September 1, 2019 - September 1, 2022Certificate in Cybersecurity (ALX Africa)
January 11, 2030 - May 8, 2026Certificate in Cybersecurity
January 11, 2030 - May 8, 2026WASSCE
January 11, 2030 - May 8, 2026Certificate in Cybersecurity
January 11, 2030 - January 1, 2022Certificate in Cybersecurity
January 11, 2030 - January 1, 2022ALX Africa program
January 11, 2030 - May 8, 2026Certificate in Cybersecurity
January 11, 2030 - January 1, 2022Certificate in Cybersecurity
January 11, 2030 - January 1, 2022ALX Africa Program
January 11, 2030 - May 8, 2026Industry Experience
Media & Entertainment, Software & Internet, Professional Services, Financial Services, Agriculture & Mining, Healthcare
Skills
Experience Level
Expert
Expert
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Expert
Expert
Expert
Intermediate
Intermediate
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