Kalana Wijethunga

Kalana Wijethunga

AI and GenAI Solution Architect

Solution architect with 15+ years in software engineering, the last seven at architect level. I design agentic and GenAI solutions from proof of concept to production, and I own architectural direction across a SaaS product portfolio. I also lead AI adoption across engineering teams.

Before that, I delivered client-facing architecture for organisations in Australia, the UK and the US, covering enterprise integration, cloud migration and modernisation. I hold an MSc in Cyber Security and a Stanford AI Professional Program certificate.

Agentic AI and multi-agent systems, RAG, LangGraph, Azure AI, Amazon Bedrock, cloud-native architecture on Azure and AWS, DevSecOps

Experience

Software Architect

Random Software Ltd, United Kingdom · January 2024 to Present

UK SaaS product company in the automotive aftermarket. I lead AI R&D and own architectural direction across the product portfolio.

  • Architected and led delivery of agentic workflows and autonomous capabilities inside production SaaS products.
  • Built custom MCP servers, agent tools and skills, RAG pipelines and knowledge graphs that ground agents in organisational data.
  • Automated document processing, OCR and image recognition in existing workflows.
  • Led the organisation's AI adoption, including upskilling programmes and rollout of AI-assisted engineering and QA tools.
  • Planned new product architectures, validated designs from each project team, and was responsible for architecture governance across several product engineering teams with more than 20 developers.
  • Introduced architecture standards, engineering KPIs and quality-control frameworks, and led DevSecOps programmes and secure development practice.

AI and Software Architecture Consultant

Independent · May 2023 to November 2025
  • Provided part-time cloud and AI architecture advisory for several Sri Lankan and international clients.
  • Designed AI-native and agentic solutions, and advised on AI adoption strategy, technology roadmaps and cost optimisation.
  • Reviewed solutions for scalability, security and engineering quality, and supported pre-sales and client acquisition.
  • Engaged part-time by Random Software on discovery and conceptual design for new products, before converting to full-time employment.

Software Architect

Mitra AI, Sri Lanka · October 2020 to April 2023

IT services and product engineering company delivering cloud and integration work, mainly for clients in Australia and the UK.

  • Architected a customer serving platform for a retail pharmacy franchise network of 600+ pharmacies, combining e-commerce, loyalty, centralised identity and health services booking on Azure.
  • Served as Program Architect for the company's internal DevSecOps framework, defining its roadmap, toolkit and adoption across project teams.
  • Software architect for a UK digital healthcare company's clinical self-assessment platform for musculoskeletal disorders, working with the CTO and product owner on the technical roadmap.
  • Cloud solutions architect for a UK creative agency on an Azure migration, and advised a UK forensic science provider on application modernisation.

Associate Software Architect

Mitra AI, Sri Lanka · October 2018 to October 2020
  • Led the architecture of an event-driven integration platform and an ML recommendation prototype over inventory, merchandise and supply chain systems on Azure.
  • Worked as the client's own architect, setting technical standards and DevOps practices, and leading offshore development teams.
  • Designed and led several application modernisation projects, moving legacy systems to API-driven architectures on Azure.

Technical Lead

Mitra AI, Sri Lanka · December 2016 to October 2018
  • Led the design and build of the customer ordering site and back-office systems for a national quick-service restaurant chain, serving 270+ franchise stores on AWS.
  • Architected and delivered a customer portal for a travel finance and insurance company on AWS, and led the offshore team.

Senior Software Engineer

Mitra AI, Sri Lanka · December 2014 to December 2016
  • Designed and developed the online ordering application and integration platform for a franchise pizza chain of around 250 stores, on Azure.
  • Ran the infrastructure, deployment pipelines and production releases.

Associate Software Engineer, Software Engineer, then Senior Software Engineer

Virtusa, Sri Lanka · April 2011 to December 2014
  • Developed applications for a global industrial energy client and built reusable data migration and application integration frameworks across an Oracle E-Business Suite ERP.

Education and Certifications

Artificial Intelligence Professional Program

Stanford University · August 2025 to July 2026

A professional education program delivered through the Stanford University, Center for Global & Online Education.

Deep Generative Models (XCS236), NLP with Deep Learning (XCS224N), and AI: Principles and Techniques (XCS221).

Master of Science in Cyber Security

University of Gloucestershire, United Kingdom · February 2023 to November 2024

Bachelor of Computer Science

University of Colombo School of Computing, Sri Lanka · August 2008 to September 2011

Certifications