Looking for a job

Gabriel Mbaiorga

@gabrielmbaiorga

Message

Senior Software Engineer specializing in Java backend systems, scalable microservices, and performance optimization.

Kenya

Message

What I'm looking for

I seek senior backend or systems-architecture roles where I can design scalable, secure distributed systems, optimize performance, mentor engineers, and deliver measurable business impact in collaborative fintech or insurtech teams.

I am a Senior Software Engineer with 5+ years of experience specializing in Java backend development and distributed microservices, delivering high-performance, scalable solutions across fintech, insurtech, SaaS, B2B, and B2C domains.

I have designed microservice architectures and optimized PL/SQL queries to reduce processing times by up to 60%, integrated Kafka and real-time monitoring (Grafana, Prometheus) to cut issue resolution and downtime, and implemented BI/reporting and scalability improvements that increased concurrent capacity and sped reporting. I bring strong ownership, clear communication, a focus on security and reliability, and a record of measurable impact in production systems.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Turnkey Africa

Mar 2023 - Present (2 years 5 months)

Designed and implemented a distributed microservice architecture using Spring Boot, Spring Cloud, Oracle 19c and Kafka, improving system scalability by 40% and ensuring high availability across multiple markets. Optimized PL/SQL and integrated BI capabilities to reduce underwriting and claims processing time by 60% and speed up reporting by 50%.

Java Spring Boot Spring Cloud Kafka Pl SQL Microservices Distributed Systems

Senior Software Engineer

Nomba Mobile Banking

May 2023 - Mar 2024 (10 months)

Developed VAS microservices and a Distributed Notification System, revamping the Notification Microservice to reduce message delivery failures by 80% and improve transaction efficiency. Integrated Grafana and Prometheus for real-time monitoring, enabling proactive detection and reduced downtime.

Java Grafana Prometheus Microservices Distributed Systems API Design Monitoring

Full Stack Software Engineer

Oasis Management Company

Mar 2019 - Dec 2022 (3 years 9 months)

Led development and deployment of an automated tax collection system for Borno State serving 800,000+ taxpayers, doubling consumption tax collection (100% increase). Implemented CAC authentication and audit logging, eliminating unauthorized access and improving security and compliance.

Java JavaScript Spring Boot PostgreSQL Web Portals Authentication API Design System Integration

Software Engineer

Biosec Solutions Ltd

Jan 2019 - Apr 2021 (2 years 3 months)

Integrated Neurotech Biometric SDK and developed Diaspora Enrollment and e-Citizen portals, enabling 60% of secure access via biometric authentication and significantly reducing verification time for government services. Improved secure access flows and streamlined NIMC integrations for identity verification.