Ranjeewa Weerasinghe

Open Raven

Senior Software Engineer • Jul 2020 — Present

Open Raven is a cloud native data protection platform that prevents cloud security and privacy exposures.

Tenable

Senior Software Engineer / Tech Lead • Nov 2018 — Jul 2020

As an engineer on the Platform Engineering team, I work on the core frameworks and services powering Tenable's cloud offering. Recently selected as Tech Lead for the Identity team, reponsible for IAM initiatives.

• Evaluating 3rd-party identity platforms, and migrating from homegrown authentication system to Okta
• Designing and implementing a new RBAC system
• Improve and maintain microservices and frameworks written in Groovy, Java, Kotlin, and Node

Skyward, a Verizon company

Lead Java Engineer • Nov 2017 — Nov 2018

Skyward builds software to manage commercial UAV (drone) operations. I was hired to lead the development team in adopting Agile practices, refactor the legacy codebase to enable faster deployment, and to mentor junior developers.

• Refactored airspace generation software for modularity, increased testability, enabling zero-downtime deployments
• Created CI pipelines, containerized services and started using Kubernetes for deployment
• Improved API integration with FAA and other parties

Jama Software

Technical Lead • Oct 2011 — Feb 2017

• Leading the team migrating Jama from a monolithic Java webapp to a SOA – including evaluating and designing service frameworks, building services, and developing a Docker-based deployment model for SaaS and on-premises installations.
• Developing Jama’s first analytics product – data collection endpoints, ETL into ElasticSearch, and visualization with Kibana
• Designing a new technical hiring flow for Jama, resulting in a more efficient and consistent interview process, and better quality hires.
• Building multiple integrations between Jama and other products, using REST/SOAP APIs and custom libraries

Agilivant

Architect (contract) • Sep 2010 — Aug 2011

First technical hire in this financial products start-up. Advising the founders on technology & platform strategy. Establishing development practices for technical hires. Creating hybrid cloud infrastructure with AWS for development and deployment. Implementing proof-of-concept applications. Hiring and leading technical teams.

• Selected and configured source control, continuous integration and collaboration environments for development team
• Implemented portions of debit card platform including card ordering and account management system, CSR functionality, services layer, IVR & SMS integration, batch processing of ISO 8583 transaction

Collaborative Software Initiative

Core Developer • Jan 2010 — Aug 2010

CSI builds and deploys enterprise software products using a unique collaborative approach and open source technologies.

• Inno360: building an open innovation platform for organizations to manage their innovation ecosystem
• TriSano: a Ruby on Rails open source surveillance and outbreak management application for public health

Liberty Mutual Insurance Group

Technologist • Apr 2007 — Jan 2010

ACS Government Solutions Group

Technical Architect • Oct 2002 — Apr 2007

Association of American Medical Colleges

Systems Developer – Enterprise Apps • May 2001 — Oct 2002

WebMD Corporation

Project Lead • Jan 1999 — Jan 2001

Sapient Health Network (acquired by WebMD)

Senior Software Engineer • Nov 1996 — Jan 1999

MS Computer Science • 1996

Purdue University

BS Computer Science • 1993

University of Houston, Clear Lake

Coursera • 2014

Functional Programming Principles in Scala