Justus Kasyoki

Senior Software Engineer specialising in cloud-native APIs, CI/CD, and observability. Delivered outcomes including ~60% faster lead time to production, ~45% lower MTTR, and ~80% throughput gains across Azure-backed platforms.

Senior Software Engineer - Cigna Health Group - Dubai, UAE

(2025-03)

• Led cloud-native API & microservice strategy, cutting lead time to production by ~60% and accelerating revenue feature delivery
• Owned Azure DevOps CI/CD and blue-green releases, reducing deployment risk and shrinking release windows to 2–4 hours
• Drove observability, SQL tuning & caching improvements, lowering MTTR ~45% and boosting throughput; enforced Key Vault & automated security scans

Senior Software Engineer - Ed Partners Africa - Nairobi, Kenya

(2024-06 - 2025-02)

• Designed RESTful APIs for third-party integrations, reducing integration-related churn and accelerating partner onboarding
• Built Azure DevOps CI/CD pipelines, shrinking deployment windows from days to 2–4 hours and cutting production incidents ~70%
• Optimised DB queries & indexing, improving system performance ~80%; automated workflows boosting team productivity ~25%

Software Engineer - Fintech Group - Nairobi, Kenya

(2023-03 - 2024-05)

• Led T24 core-banking integration, improving transaction efficiency ~40% and reducing settlement times at 50,000+ daily transactions
• Redesigned XML processing pipelines, increasing throughput ~35% and cutting deployment time ~50% via automated releases
• Delivered web performance optimisations reducing response times ~30%, improving user satisfaction and lowering support churn

Software Engineer - Brightsoft Technologies Ltd - Nairobi, Kenya

(2021-08 - 2023-02)

• Integrated Microsoft Dynamics BC/NAV & CRM via REST/SOAP APIs, reducing reconciliation effort 40% and shortening order-to-cash cycles 25%

Junior Software Engineer - Intermass Technologies EA Ltd - Nairobi, Kenya

(2020-04 - 2021-07)

• Supported .NET application development, unit testing, and DB optimisation, contributing to ~25% faster sprint delivery and ~20% fewer regressions

Bachelor of Science - Business Information Systems - Jaramogi Oginga Odinga University of Science and Technology (2016-09 - 2020-12) Bondo, Kenya

KCSE - Chogoria Boys High School (2012-01 - 2015-11) Chogoria, Kenya