seun sunday
@seunsunday
Seasoned backend software engineer focused on secure, scalable web systems and DevOps-driven delivery.
United KingdomWhat I'm looking for
I'm a seasoned software engineer with over a decade of experience building secure, scalable web and mobile applications using PHP, Node.js, Java, GraphQL, and modern frontend frameworks. I lead product development teams, design backend architecture, and implement CI/CD and serverless solutions on AWS and Azure while embedding OWASP best practices across the SDLC.
In recent roles I designed and maintained RESTful and GraphQL APIs, integrated AWS OpenSearch, built analytics dashboards with Power BI, and drove deployments with S3, Lambda and containerized pipelines. I mentor and onboard junior engineers, run peer code reviews and pair programming, and prioritize maintainable, well-tested code through unit, integration, performance, and stress testing.
I hold an M.Sc. in Cyber Security and multiple certifications (AWS Solutions Architect Associate, CySA+, CEH, CCNA/CCNP) that reinforce my security-first approach. I deliver resilient, trustworthy systems that align technical solutions with business goals and compliance requirements.
Experience
Work history, roles, and key accomplishments
Backend Engineer
Communico Corporation Ltd
Mar 2025 - Present (7 months)
Developed and integrated AWS OpenSearch with GraphQL APIs, designed and maintained RESTful/GraphQL services using Node.js, PHP, and Java, and implemented CI/CD and serverless deployments to improve scalability and operational efficiency.
Senior Web Developer
ADEY Innovation Ltd
Jan 2022 - Mar 2025 (3 years 2 months)
Led product development and agile teams, delivered high-profile web and mobile applications using PHP, React and WordPress custom plugins, and instituted testing and CI practices to ensure secure, compliant deployments.
Senior Web Developer
E-Solution Technologies
Jan 2018 - Jan 2022 (4 years)
Led development teams building full-stack applications with Python, PHP, Laravel and React, managed database design and deployments to AWS, and enforced security and testing practices to maintain product performance.
Full-stack Developer
E-Solution Technologies
Jan 2016 - Jan 2018 (2 years)
Developed interfaces and backend services using PHP and Laravel, performed debugging and performance tuning, and produced technical specifications and project plans for delivery.
Network Administrator
College of Health Sciences & Technology
Jan 2011 - Jan 2016 (5 years)
Installed and maintained networks and servers, performed security monitoring and upgrades, and documented configurations while providing technical support to end-users.
Technical Support Officer
e-Transact Payment and Switching Company
Jan 2010 - Jan 2011 (1 year)
Provided technical support and maintenance for IT infrastructure, installed and configured hardware and software, and maintained automated data processes to ensure operational continuity.
Education
Degrees, certifications, and relevant coursework
UEUniversity of the West of England
Master of Science, Cyber Security
Completed an M.Sc. in Cyber Security with focus on cybersecurity practices and research.
AllOver Central Polytechnic, Otta
BTEC, Computer Science
2017 - 2017
Completed a BTEC qualification in Computer Science focusing on practical computing skills and foundations.
AllOver Central Polytechnic, Otta
National Diploma, Computer Engineering
2010 - 2010
Completed a National Diploma in Computer Engineering covering networking, server configuration, and systems maintenance.
Tech stack
Software and tools used professionally
Availability
Location
United KingdomAuthorized to work in
Job categories
Skills
Interested in hiring seun?
You can contact seun and 90k+ other talented remote workers on Himalayas.
Message seunFind your dream job
Sign up now and join over 100,000 remote workers who receive personalized job alerts, curated job matches, and more for free!
