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Bhanuka Dissanayake

@bhanukadissanayake

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Senior software engineer using C#/.NET to build scalable APIs and cloud systems.

Sri Lanka

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What I'm looking for

I’m looking to build and modernize reliable .NET/Cloud products end-to-end—designing APIs, improving performance and security, collaborating in Agile teams, and using AI-assisted workflows to ship high-quality software.

I’m a Senior Software Engineer with 5+ years of experience across workflow automation, betting, finance, retail, e-commerce, and sports, with exposure to the full Software Development Life Cycle (SDLC). I enjoy analyzing user requirements and turning them into reliable software through designing, developing, testing, troubleshooting, and maintaining production systems.

In my recent roles, I’ve built scalable .NET Web APIs and delivered complex platform features for BPMN workflow automation, including model versioning and revision management, plus stakeholder support, recycle bin functionality, and report generation. I also collaborate in Agile/Scrum environments, participate in code reviews and technical discussions, and promote clean architecture and continuous improvements—leveraging AI-assisted development workflows when it helps teams move faster.

Across domains, I’ve modernized and re-engineered systems (including migrating AWS Lambda workloads to .NET 8, improving performance and reducing cold-start latency), led security upgrades across AWS infrastructure, and monitored high-traffic production events to keep wagering services stable. I’ve also developed RESTful APIs using CQRS, Domain-Driven Design, and Clean Architecture, upgraded a Django eLearning platform from 1.x to 4.0 with complete testing and releases, and built microservices-based SaaS for transportation data forecasting using Python-based time-series models.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Redblocks Technologies

Apr 2026 - Jul 2026 (3 months)

Designed and developed scalable .NET Web APIs for a BPMN-based technical activity modelling and automation platform. Implemented BPMN workflow capabilities including model versioning and revision management, and delivered reporting and external stakeholder features.

C#.NET Web APIs Model Versioning .NET Framework React MS SQL Server Azure DevOps Clean Architecture RESTful APIs

Software Engineer

Racing & Wagering Western Australia

Apr 2025 - Jan 2026 (9 months)

Implemented AML initiative features including transaction attempt storage to support compliance reporting. Re-engineered Event360 into a new HTMX-based application and migrated AWS Lambda workloads to .NET 8 for reduced cold-start latency.

C#.NET Angular SQL Server AWS AWS Lambda AWS EC2 HTMX Gitlab CI Dynatrace Unit Testing SSL Performance Monitoring

Software Engineer Consultant

Simpology Australia | Corzent

Oct 2024 - Apr 2025 (6 months)

Contributed to end-to-end loan origination platform development, including user requirement analysis and technical specification work. Developed features for digital income verifications and sub-status alert tracking for loan applications.

C#.NET Core Microsoft SQL Server AWS Bitbucket Requirements Analysis Technical Specifications

Senior Software Engineer

Calcey Technologies

Apr 2022 - Apr 2024 (2 years)

Built and maintained multiple product areas across enterprise and e-commerce workloads, including RESTful API development and application troubleshooting. Worked on portals, e-commerce maintenance, a talent identification platform, and a learning platform migration led by a small team.

C#.NET Core Python Django PostgreSQL MS SQL Server AWS S3 AWS Lambda AWS EC2 Redis Gitlab Jira RESTful APIs CQRS Domain Driven Design Clean Architecture Blazor

Software Engineer

Enactor Ltd

Feb 2021 - Mar 2022 (1 year 1 month)

Developed features for Enactor Retail Platform including partial file downloading for POS machines and DNS names for device registration using QR codes. Worked on performance optimizations using distributed processing with Zookeeper and supported customer issue troubleshooting.

Java Maven MySQL Jenkins Docker Apache Zookeeper Cucumber Enactor DevTools Subversion Performance Optimization

Undergraduate Researcher

University Of Moratuwa

Dec 2019 - Jan 2021 (1 year 1 month)

Researched and built a microservices-based SaaS platform to aggregate, integrate, and visualize urban transportation data. Led work on integrating traffic and weather data for traffic volume forecasting and delivered a VAR-based web API for predictive services.

Python Microservices SaaS NumPy Pandas Matplotlib Flask VARs Spring Boot Angular

Intern - Technology

Virtusa(Pvt) Ltd

Jul 2019 - Dec 2019 (5 months)

Worked as a Java full-stack developer on microservices-based development life cycle dashboarding and gamification. Developed a SWIFT MT700 message generator for training datasets and built a proof of concept for NER with a REST API for sentiment analysis.

Java Maven Python Keras TensorFlow Flask MongoDB Spring Boot React MySQL Elasticsearch Spring Security REST APIs Named Entity Recognition Sentiment Analysis

Education

Degrees, certifications, and relevant coursework

University of Moratuwa

Bachelor of Science (Honours) in Engineering, Computer Science and Engineering

2017 - 2021

Grade: GPA: 3.67/4.20

Activities and societies: Dean’s List (Semesters 6 & 8); Mahapola Merit Higher Education Scholarship; research publication at the 28th FRUCT conference.

Earned a BSc (Hons) in Engineering specializing in Computer Science and Engineering at the University of Moratuwa (Washington Accord accredited). Graduated in 2021 with strong academic performance and research contributions.