Gavinlee Xavier Fernandes
Integrations/Implementation (Fiorano ESB) Engineer
Nairobi, Nairobi Province
Summary
Driven and hands-on Technical Implementation Engineer with experience in Fiorano ESB environments, specializing in API development, deployment, and production support for enterprise banking systems. Skilled in interacting with the Fiorano middleware layer, maintaining live integrations, troubleshooting service issues, and ensuring business continuity in mission-critical applications.
Developed and maintained multiple APIs across development and UAT environments, contributing to smooth system communication, cross-platform integration, and partner onboarding processes. Experienced in working closely with QA, DevOps, and business teams to deliver secure, compliant, and scalable middleware solutions.
Complemented by a solid foundation in full-stack software development using stacks like: Next.js, React.js, Node.js, MySQL, MongoDB, etc, bringing a well-rounded technical perspective to implementation projects. Known for adaptability, clear documentation, and a practical approach to solving technical integration challenges in banking and fintech domains.
Overview
1
1
year of professional experience
2
2
Certifications
2
2
Languages
Work History
Technical Implementation Engineer
Diamond Trust Bank
11.2024 - Current
- Delivered essential daily production support across Billers (NSSF, SHA, ECZ, KPA), Payments, and Western Union systems; executed troubleshooting, manual reconciliation, and downtime tracking across IPN, IPRS, and TIBCO platforms.
- Administered digital certificate processes for high-risk systems, diligently followed up on expirations and maintained secure, seamless service across numerous PROD environments.
- Managed API integration and partner onboarding for platforms tackling complex API-related problems with thorough walkthroughs, testing, and deployment.
- Built and deployed over 10+ production-ready APIs in Fiorano ESB following strict QA and Dev → UAT →PROD protocols.
- Engineered advanced automation utilities in JavaScript and Node.js, incorporating multi-ID filters, KRA hash generators, and E-Citizen validation tools, enhancing validations and integrations across fintech services.
- Developed dynamic PDF generation tools utilizing Rhino/JS for real-time data extraction from DB/XML; produced base64-encoded PDFs incorporating logos, fonts, and transaction details for secure SMTP dispatch and recordkeeping.
- Constructed Documentation Site with Next Js and MySQL to centralize detailed API information, facilitating seamless integration for developers.
Software Engineering Intern
Quantum Plus Kenya
05.2024 - 08.2024
- Developed and maintained dynamic web applications using React.js and Meteor.js.
- Designed and implemented responsive and user-friendly interfaces with HTML5, CSS, and Tailwind CSS.
- Managed and queried data effectively using MongoDB.
- Collaborated with team members on version control using GitHub.
- Assisted in configuring and maintaining IT systems and provided technical support.
- Participated in agile methodologies, including daily stand-ups, code reviews, and sprint planning.
- Managed system updates and handled software installations for smooth operations.
Education
BSc - Mathematics and Computer Science
Kenya Methodist University
10.2024
Kenya Certificate of Secondary Education (KCSE) - undefined
Allidina Visram Highschool
04.2021
Kenya Certificate of Primary Education (KCPE) -
Aga Khan Primary School
11.2016
Skills
- Full-Stack Development & Automation
Experienced in building web applications using Reactjs, Meteorjs, and Nodejs, and automating internal processes with custom JavaScript utilities and scripting tools - API Development & System Integration
Skilled in designing, deploying, and documenting RESTful APIs; hands-on experience integrating partner platforms and managing banking middleware (eg, Fiorano, IPN, TIBCO) - IT Support & Infrastructure Operations
Provided end-to-end support across production environments, handling system troubleshooting, certificate management, patching, and infrastructure monitoring
- Database & Backend Management
Proficient with MongoDB, Oracle SQL, and MySQL; experienced in querying, data extraction (XML/DB), and backend data handling in banking and software environments - Cybersecurity & Certificate Lifecycle Management
Oversaw secure environments by managing digital certificates, supporting access control mechanisms, and ensuring system compliance with banking security protocols - Cross-functional Collaboration & Agile Delivery
Proven ability to work across teams (IT, dev, QA, business), lead UAT efforts, and deliver solutions under agile workflows — with clear communication and documentation
Certification
Oracle Cloud Infrastructure
References
References available upon request.
Interests
Swimming, Chess, Table Tennis, Badminton, Football, Hiking, Camping, Pool, Billiards, Darts, Participating in Hackathons and Coding Camps
Accomplishments
- 2025 Inter Banks Games Snooker Winner
- Best Chess Player Award (2015, 2016, 2021)
- 2nd Runners Up, Young Scientists Kenya
- 1st Runners Up, Allan Gray Foundation Competition (2021)
- English Access Scholarship USA Program Member (2018-2021)
- Table Tennis Vice Captain, Regionals (2018-2022)
- Chess Captain (2014-2016)
- Member of The School Debate Team
- Best Player in Allan Gray Competition: Recognized for outstanding performance and innovative thinking in STEM-related challenges.
Timeline
Technical Implementation Engineer
Diamond Trust Bank
11.2024 - Current
Software Engineering Intern
Quantum Plus Kenya
05.2024 - 08.2024
Kenya Certificate of Secondary Education (KCSE) - undefined
Allidina Visram Highschool
BSc - Mathematics and Computer Science
Kenya Methodist University
Kenya Certificate of Primary Education (KCPE) -
Aga Khan Primary School