JAMES MBOMA

SOFTWARE ENGINEER

• Maintain security of critical authentication edge services, fixing service vulnerabilities and updating service dependencies.
• Designed and built a production-grade performance testing environment for a client-facing mTLS platform used by a major UK supermarket chain ahead of peak trading period, ensuring scalability, resilience, and production readiness.
• Expanded Java-based onboarding services, reducing SMB merchant onboarding time from two weeks to under one hour.
• Automated end-to-end testing by integrating Postman CLI into an AWS EC2 environment and Jenkins CI/CD pipelines, reducing QA execution time by 80%.
• Led disaster recovery and resilience testing across distributed microservices, validating failover mechanisms and ensuring compliance with 99.999% SLA targets.

DATA ANALYST

• Built data transformation pipelines to support senior leadership with improved reporting and analysis.
• Developed a proof of concept using Copilot to summarise and categorise client presentations, reducing delivery time of critical analysis by 30%.
• Collaborated with stakeholders to translate operational requirements into actionable data insights.

MACHINE LEARNING ENGINEER

• Developed a recommender system using Databricks, Snowflake, and PySpark to increase user lifetime value.
• Built a classification model using a feedforward neural network, doubling user engagement across Nike platforms.
• Refactored ML pipelines and removed redundant data sources, reducing cloud costs and improving model build times.
• Implemented automated unit testing to ensure reliability and data integrity.
• Presented findings to cross-functional stakeholders, promoting transparency and data-driven decision-making.