Ukraine's #1 job service
- File
Williams
Fullstack-розробник
Considering positions:
Fullstack-розробник, PHP Software Engineer, PHP Programmer, Web administrator, Web-програміст
Age:
28 years
City of residence:
Kyiv
Ready to work:
Remote
Contact information
The job seeker has entered a phone number .
Name, contacts and photo are only available to registered employers. To access the candidates' personal information, log in as an employer or sign up.
You can get this candidate's contact information from https://www.work.ua/resumes/16719559/
Uploaded file
Quick view
version
This resume is posted as a file. The quick view option may be worse than the original resume.
WILLIAMS OJI
Senior Full-Stack / Software Developer
[open contact info ](look above in the "contact info" section) Remote / Open to Relocation
PROFESSIONAL SUMMARY
Results-driven Senior Full-Stack Developer with 10+ years of experience designing, building, and
scaling web applications across SaaS, fintech, and e-commerce. Proven track record delivering high-
performance solutions, optimizing complex systems, and leading cross-functional teams.
PROFESSIONAL EXPERIENCE
AtlasPay Solutions 05/2022 – 11/2025
Backend Developer Remotely
Designed secure payment APIs supporting multi-currency settlements
•
across regions.
Built onboarding and KYC workflows with audit trails and activity tracking.
•
Reduced fraud-related chargebacks by 18% using rules-based detection.
•
Introduced integration tests and CI pipelines, increasing release confidence.
•
Partnered with compliance and legal teams to ensure regulatory adherence.
•
PixelWave Software 09/2018 – 05/2022
Software Developer Remotely
Built CMS and e-commerce systems with Laravel and MySQL.
•
Reduced database latency by 35% through optimization.
•
Improved incident response with logging and monitoring.
•
ReCore Labs 08/2016 – 09/2018
Full-Stack Software Engineer Assistant Remotely
Built scalable REST APIs across fintech products.
•
Developed responsive interfaces increasing engagement by 28%.
•
Implemented secure authentication (OAuth2, JWT).
•
Reduced infrastructure cost by 30% with autoscaling.
•
NexaWeb Digitals 08/2015 – 07/2016
Software Engineer Hybrid
Delivered custom CRM and analytics dashboards for enterprise clients.
•
Created REST APIs used by mobile and web applications across multiple
•
regions.
Reduced server costs with caching (Redis) and static asset optimization.
•
Wrote automated integration tests that improved stability with every
•
release.
Collaborated directly with clients, gathering requirements and providing
•
solutions.
Crescent Labs 09/2013 – 04/2015
Junior Full-Stack Developer (Intern) Hybrid
Developed client dashboards using React + Laravel for analytics and
•
reporting.
Built internal admin tools that saved support teams 10+ hours/week.
•
Refactored slow SQL queries and optimized indexing to improve
•
performance.
Wrote technical documentation and onboarding guides for new engineers.
•
EDUCATION & CERTIFICATIONS
University of Nigeria 2011 – 2015
B.Sc. Computer Science
Second Class (Upper Division)
CORE SKILLS
Front-End Back-End Databases
React, Next.js, Vue.js, Node.js, Express, PHP/Laravel, MySQL, PostgreSQL,
TypeScript, Tailwind, HTML5, Python, REST, GraphQL, MongoDB, Redis
CSS3 Microservices
Tools
Cloud & DevOps Practices Git, Jira, Postman,
AWS, Docker, Kubernetes, TDD, Agile/Scrum, Security Elasticsearch
CI/CD Best Practices
EDUCATION & CERTIFICATIONS
AWS Certified Developer - Scrum Fundamentals
Associate Certified
AWARDS
Best Chess Player Award 2015
Department of Computer Science, Univerisity of Nigeria
Senior Full-Stack / Software Developer
[
PROFESSIONAL SUMMARY
Results-driven Senior Full-Stack Developer with 10+ years of experience designing, building, and
scaling web applications across SaaS, fintech, and e-commerce. Proven track record delivering high-
performance solutions, optimizing complex systems, and leading cross-functional teams.
PROFESSIONAL EXPERIENCE
AtlasPay Solutions 05/2022 – 11/2025
Backend Developer Remotely
Designed secure payment APIs supporting multi-currency settlements
•
across regions.
Built onboarding and KYC workflows with audit trails and activity tracking.
•
Reduced fraud-related chargebacks by 18% using rules-based detection.
•
Introduced integration tests and CI pipelines, increasing release confidence.
•
Partnered with compliance and legal teams to ensure regulatory adherence.
•
PixelWave Software 09/2018 – 05/2022
Software Developer Remotely
Built CMS and e-commerce systems with Laravel and MySQL.
•
Reduced database latency by 35% through optimization.
•
Improved incident response with logging and monitoring.
•
ReCore Labs 08/2016 – 09/2018
Full-Stack Software Engineer Assistant Remotely
Built scalable REST APIs across fintech products.
•
Developed responsive interfaces increasing engagement by 28%.
•
Implemented secure authentication (OAuth2, JWT).
•
Reduced infrastructure cost by 30% with autoscaling.
•
NexaWeb Digitals 08/2015 – 07/2016
Software Engineer Hybrid
Delivered custom CRM and analytics dashboards for enterprise clients.
•
Created REST APIs used by mobile and web applications across multiple
•
regions.
Reduced server costs with caching (Redis) and static asset optimization.
•
Wrote automated integration tests that improved stability with every
•
release.
Collaborated directly with clients, gathering requirements and providing
•
solutions.
Crescent Labs 09/2013 – 04/2015
Junior Full-Stack Developer (Intern) Hybrid
Developed client dashboards using React + Laravel for analytics and
•
reporting.
Built internal admin tools that saved support teams 10+ hours/week.
•
Refactored slow SQL queries and optimized indexing to improve
•
performance.
Wrote technical documentation and onboarding guides for new engineers.
•
EDUCATION & CERTIFICATIONS
University of Nigeria 2011 – 2015
B.Sc. Computer Science
Second Class (Upper Division)
CORE SKILLS
Front-End Back-End Databases
React, Next.js, Vue.js, Node.js, Express, PHP/Laravel, MySQL, PostgreSQL,
TypeScript, Tailwind, HTML5, Python, REST, GraphQL, MongoDB, Redis
CSS3 Microservices
Tools
Cloud & DevOps Practices Git, Jira, Postman,
AWS, Docker, Kubernetes, TDD, Agile/Scrum, Security Elasticsearch
CI/CD Best Practices
EDUCATION & CERTIFICATIONS
AWS Certified Developer - Scrum Fundamentals
Associate Certified
AWARDS
Best Chess Player Award 2015
Department of Computer Science, Univerisity of Nigeria
Similar candidates
-
Fullstack Developer
85000 UAH, Remote -
Fullstack-розробник
Remote -
Fullstack-розробник
Remote -
Fullstack-розробник
Remote, Mykolaiv, Odesa -
Fullstack-розробник
60000 UAH, Remote, Kyiv
Compare your requirements and salary with other companies' jobs:
The candidate's resume is posted at https://www.work.ua/resumes/16719559/