Bammunuarachchige Don Lasantha Ranga

Automated a BESS tender financial model into a Python and Excel decision-support solution, and built a browser-based dashboard for board-level sensitivity analysis. Re-architected the model with audit controls and trained in-house staff.

Owned delivery performance across the production portfolio in Sri Lanka and Vietnam, reporting to the CEO and presenting weekly to the Board. Recovered a strategic UK engagement, installed KPI-based delivery disciplines, and held full P&L accountability.

Held general management responsibility for the Colombo office while leading delivery management across concurrent client programmes. Planned and executed cloud migrations, owned delivery of integrations, and established new operations.

Signed off releases personally after team demos and testing, managed post-release testing windows, and maintained versioned configuration sets. Ran sprint planning, stand-ups, and retrospectives for several teams.

Oversaw engineering delivery, technical programme execution, and recruitment during a period of organisational transition, reporting to the CEO in the Netherlands.

Held a senior leadership role in software engineering, overseeing large teams and delivery across global regions.

Managed software development teams and held concurrent support and service pack project management roles. Scaled the HR product capability and introduced operating-model improvements.

Managed software development projects and teams, contributing to delivery and process improvements.

Developed software as part of the engineering team.

Recognized Practitioner certification from the Personal Agility Institute in 2020.

Certified SAFe 5 Agilist from Scaled Agile Inc. in 2020.

Postgraduate Diploma in Business Management from the University of Colombo.

Certified SAFe 5 Program Consultant (SPC) from Scaled Agile Inc. in 2021.

BSc in Information Systems from Manchester Metropolitan University.

Certified ScrumMaster (CSM) from Scrum Alliance in 2020.