Madushan Chathuranga
- 10+years building enterprise grade software
- 6industries
I have been building enterprise grade software since 2015. Most of it is backend work in Java, Python and Go on AWS and GCP. Much of that has been event driven systems moving data in near real time on Kafka, Kinesis and Pub/Sub. I have also built the web applications that sit on top of them, in Node.js, React and TypeScript. More recently the work has been RAG and agentic AI with Vertex AI and LangChain. I am based in Colombo, Sri Lanka.
The rest of the time I am out with a camera waiting for something wild to move.
I have worked in two modes. Embedded with a client organisation as a forward deployed and consulting engineer, inside their team and their codebase. And in house as a product engineer, on systems that have to keep working for years after the project closes.
The domains have moved around a lot. The problems underneath do not change much.
Right now I lead a team of seven at Techlabs Global. We are embedded with Sportserve. Before this I spent two years at Visa in Singapore building a payment acknowledgement system that carries 40M transactions a day inside a 5 second SLA. Before that I was at Sysco LABS building the ecommerce software behind a Fortune 500 modernisation. Earlier still, John Wiley & Sons, Axiata Digital Labs and Virtusa.
I am an AWS Certified Solutions Architect. Also a SAFe® Agilist and a Certified ScrumMaster.
On my own time I am usually out with a camera. Wildlife mostly. I like the waiting as much as the photograph. Every frame on this site is mine. They go up on Instagram as @_wild_diary.
I care about how animals are treated. I read philosophy and history when I get the time. I want to know how the world got from one age to the next.
Competencies
- Languages
- Java (8/17/21/25)GoPythonJavaScriptTypeScript
- Data & Event Platforms
- Apache Kafka (Confluent)GCP Pub/SubBigQueryAWS Kinesis
- Cloud
- GCP (Cloud Run, BigQuery, Pub/Sub, Cloud SQL, Secret Manager, IAM)AWS (Lambda, Aurora, DynamoDB, CloudWatch, ECS, Fargate)Certified Solutions Architect
- AI & LLM Delivery
- RAG pipelinesagentic workflowsVertex AI / GeminiClaude CodeAI assisted SDLC and CI/CD authoring
- Backend & Data Stores
- Spring BootRESTOpenAPIgRPCmicroservicesevent-driven architectureBPMN orchestrationPostgreSQLMongoDBOracleRedisBigQuery
- Frontend
- ReactNext.jsNode.jsVue 3Angular
- Delivery & Observability
- GitLab CIJenkinsDockerKubernetesTerraformArgoCDDatadogDynatracePrometheusGrafanaSplunkELK
01
Career
Senior Technical Lead
Embedded with Sportserve as technical lead on their data platform.
- Leads a team of seven across backend, frontend, data warehousing and SRE
- Owns the design of a Go event processing platform on GCP end to end
- Selected the stack and built the B2B reporting application on Spring Boot, gRPC and React
Senior Software Consultant
- Architected the Kafka pipeline behind Visa Flexible Credentials
- Rebuilt message consumption off unreliable TCP socket connections
- Built custom observability on the Kafka Admin API with Prometheus and Grafana
- Team of four backend engineers and one QA
Technical Lead
- Led four developers and two QA moving active data off a legacy AS400 database onto PostgreSQL
- Migrated the streaming layer from Amazon Kinesis to Confluent Kafka for cloud portability
- Owned three Spring Boot microservices serving the e-commerce platform
Senior Engineer, then Technical Lead
- Led the Sri Lanka offshore team of three developers and one QA
- Built BPMN process orchestration automating book and article publication
- Used Dynatrace for APM and performance work across the CMS platform
Senior Software Engineer
- Built the Mastercard MPGS gateway integration for a PCI-DSS certified digital wallet
- Led the Lanka QR payments integration into the PickMe taxi app end to end
Intern, then Engineer, then Senior Engineer
- Client-facing delivery for MetLife and Dell SecureWorks
- Built a threat modelling platform in a team of six inside a 90-person programme
- Worked across Java, Angular, Python and Ansible
02
Selected work
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03
Photography
The photographs live on Instagram while this gallery is being filled.
@_wild_diary04
Blog
What Does It Mean for Something to Exist?
There is a question that seems simple until you start chasing it.
I Replaced Manual QA with Claude Code Agents in My GitLab Pipeline. Here’s Exactly How.
The agent reads business requirements, analyzes the source code, discovers edge cases on its own, generates Karate test scenarios from scratch, runs them against a real database, commits the tests to the branch, and…
Use of Claude Code Agents in mitigating application security vulnerabilities
A practical guide to building agentic workflows that save hours of tedious maintenance work including step by step agent setup, folder structure, and real prompts.
Kafka-Driven Async Data Streaming: A Superior Choice Over Amazon Kinesis
Data streaming has revolutionized real-time data processing and analytics, with Apache Kafka and Amazon Kinesis emerging as prominent players in this field. In this article, we will explore why Kafka, especially when…
05
Contact
open to selected work
The work that suits me is backend and platform engineering. Event driven systems, cloud migrations, and teams that need a technical lead.
mchathuranga4@gmail.com