Nipun Rajapaksha
@nipunrajapaksha
Appian developer and AI/ML engineer delivering enterprise workflow automation and intelligent system integration at production quality.
Sri LankaWhat I'm looking for
I’m an Appian developer and AI/ML engineer with production delivery experience across enterprise workflow automation and intelligent system integration. I designed and delivered a full-scale Appian 26.3 application for a tier-1 manufacturing client, completing discovery to UAT in under three months.
In my current role, I built a production Appian 26.3 delivery risk alert management application with 7 record types, 11 process models, 15+ expression rules, and 9 related actions. I also implemented REST API alert ingestion, dynamic role-based row-level security, SAML 2.0 SSO via Azure AD, and MariaDB schema design with query optimization in Appian Cloud.
I pair that platform expertise with strong AI/ML and data engineering fundamentals. I’ve integrated AI and ML capabilities into enterprise workflows (including an MVP sentiment analysis tool for MAS) and built an LLM evaluation framework at WSO2 Lanka achieving 90%+ precision, improving output accuracy by 25% and reducing hallucinations; I’m also actively pursuing an Appian Associate Developer certification.
Experience
Work history, roles, and key accomplishments
Appian Developer
Acentura Inc
Apr 2026 - Present (3 months)
Delivered a production Appian 26.3 risk alert management application for a tier-1 manufacturing client from discovery through UAT in under three months. Built Appian record types, process models, expression rules, REST API alert ingestion, dynamic row-level security, and SAML 2.0 SSO integration.
AI/ML Engineer
Acentura Inc
Oct 2025 - Present (9 months)
Integrated AI and ML capabilities into enterprise client applications to enhance automation, predictive insights, and system intelligence across business workflows. Developed and supported MVP solutions including an AI sentiment analysis tool and ML model integration into existing Appian workflows.
Software Engineer (Part-Time)
Quantum Tunnel Design
Jan 2025 - Jun 2025 (5 months)
Contributed to agile development of quantum simulation tools and an AI-driven simulation platform for real-time execution on quantum devices. Built a full-stack web app for managing quantum experiments and automated quantum code generation to improve research productivity.
Intern Software Engineer
WSO2 Lanka (Pvt) Ltd
Apr 2024 - Oct 2024 (6 months)
Developed an AI evaluation framework with customized metrics to validate LLM outputs and improve AI feature reliability. Automated evaluation in CI/CD pipelines, enhanced validation robustness, and delivered unit-tested software components with senior engineering collaboration.
Education
Degrees, certifications, and relevant coursework
University of Sri Jayewardenepura
Bachelor of Science in Engineering (Hons), Computer Engineering
2021 - 2025
Grade: 3.66/4.00
B.Sc. Engineering (Hons) in Computer Engineering, completed from March 2021 to July 2025. Graduated with a GPA of 3.66/4.00.
St. Anne’s College, Kurunegala
G.C.E. Advanced Level, Physical Science
2016 - 2019
Grade: AAB
G.C.E. Advanced Level (Physical Science stream) from February 2016 to August 2019. Achieved AAB.
Tech stack
Software and tools used professionally
Availability
Location
Sri LankaAuthorized to work in
Job categories
Skills
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