Dineth JayangaGet in touch

Software EngineerColombo, Sri Lanka

Dineth JayangaI build cloud-native systems that stay maintainable as they scale.

Software engineer working across .NET and Java microservices, Auth0 identity, database design and Azure infrastructure. I own the logical design of a system as well as the code and the deployment that ships it.

View projects Contact meRésumé
Started professionally
2023
BEng Software Engineering
First Class
Engineering roles
3
Projects built
19

01About

Engineer first, architect by habit.

Portrait of Dineth Jayanga
Colombo, Sri Lanka

I started in Java and Spring Boot at RapidM3, building education and church-management platforms for clients, then moved to .NET microservices on Azure at Expernetic, where I now lead system design and delivery.

I like the part of the job where requirements are vague and the architecture is still open: turning them into a design that a team can build, test and operate without it falling apart six months later.

I finished my BEng in Software Engineering with First Class Honours alongside my engineering work, and I want to keep moving toward larger distributed systems, stronger platform engineering and technical leadership. Right now I am also exploring machine learning, AI engineering and prompt engineering.

  • 01

    Design before code

    Logical system design, clear boundaries between services and well-shaped databases come first. They decide how expensive every later change is.

  • 02

    Automate the path to production

    Repeatable CI/CD and YAML-defined deployments make releases routine instead of events.

  • 03

    Lead through clarity

    I manage a development team at Expernetic and have handled client relationships, translating complex requirements into work a team can deliver on time.

02Technical skills

The toolbox, grouped by the problem it solves.

Each skill is tagged by how I have used it, so you can tell production experience from project work at a glance. Select a skill to see the projects that use it.

Languages

9 skills

Two backend ecosystems, a typed frontend, and the scripting and systems languages around them.

  • C — Project work

Frontend

7 skills

Enough range to ship a full feature end to end.

  • Angular — Used professionally
  • Figma — Project work

Backend

5 skills

Services and APIs built to be deployed independently.

  • Microservices — Used professionally
  • REST API design — Used professionally

Mobile & IoT

4 skills

Android apps and the hardware that feeds them, built as GitHub projects.

Databases & data access

5 skills

Schema design is where most performance is decided.

  • Database design — Used professionally
  • Stored procedures — Used professionally

Architecture & patterns

6 skills

Structure that lets a team change one thing at a time.

  • System design — Used professionally
  • Microservices architecture — Used professionally
  • Clean Architecture — Used professionally
  • CQRS — Used professionally
  • MediatR — Used professionally
  • Multi-tenant design — Used professionally

Cloud & DevOps

8 skills

Releases should be boring.

  • CI/CD pipelines — Used professionally
  • YAML deployments — Used professionally

Authentication & security

5 skills

Identity and access control designed in, not bolted on.

  • Authentication — Used professionally
  • Authorization — Used professionally
  • Role-based access control — Used professionally

Leadership & project management

8 skills

Getting a team from requirements to a release.

  • Team management — Used professionally
  • Project management — Used professionally
  • Client relationships — Used professionally
  • Requirements analysis — Used professionally
  • Agile / Scrum — Used professionally
  • Technical documentation — Used professionally
  • Release management — Used professionally

AI & machine learning

3 skills

What I am learning now, alongside the day job.

  • Machine learning — Exploring
  • AI engineering — Exploring
  • Prompt engineering — Exploring

Testing & tools

3 skills

Day-to-day delivery tooling.

  • Postman — Used professionally
  • Software testing — Used professionally

03Professional experience

From Spring Boot interns to leading .NET platforms.

Three roles in two companies, each with more ownership than the last.

  1. Jan 2025 — PresentCurrent

    Associate Software Engineer

    Expernetic (Pvt) Ltd

    Architecting and building high-scale .NET microservice platforms and owning the cloud delivery around them.

    • Architect and develop high-scale .NET microservice platforms using Clean Architecture, CQRS and MediatR.
    • Design databases and data access on SQL Server: schema design, stored procedures and Dapper.
    • Build identity, authentication, authorization and role-based access control with Auth0 and Keycloak for a multi-tenant architecture.
    • Integrate Stripe payments and subscription billing workflows.
    • Oversee the Azure Portal ecosystem and infrastructure strategy, with Docker, Kubernetes and Helm deployments.
    • Engineer automated CI/CD pipelines with GitHub Actions to shorten deployment cycles, alongside testing and release management.
    • Manage a development team, turning complex requirements into work the team can plan, build and release on time.
    • Lead logical system design so the platforms stay resilient and cloud-native as they grow.
    • C#
    • .NET
    • Next.js
    • Microservices
    • Auth0
    • Keycloak
    • Azure
    • SQL Server
    • Kubernetes
    • Helm
    • Docker
    • GitHub Actions
    • Stripe
  2. May 2024 — Oct 2024

    Associate Software Engineer

    RapidM3 (Pvt) Ltd

    Developed and managed microservice applications on a Spring Boot architecture.

    • Built and maintained microservice applications with Spring Boot.
    • Handled deployments and coordinated delivery within an Agile team.
    • Took on team management alongside development.
    • Java
    • Spring Boot
    • React
    • MySQL
    • Agile
  3. Oct 2023 — Apr 2024Internship · 6 months

    Intern Software Engineer

    RapidM3 (Pvt) Ltd

    Six-month internship that led into an Associate Software Engineer role.

    • Hands-on delivery across Java, Spring Boot, React and SQL.
    • Worked in Agile sprints with Jira from day one.
    • Java
    • Spring Boot
    • React
    • SQL
    • Jira

04Featured projects

Systems I have designed and built.

Workplace systems are proprietary, so they are described at a high level. Personal and academic projects link to their code on GitHub where it is public.

Professional Client / private

Enterprise microservices platform

Expernetic · 2025 — present

A high-scale, cloud-native platform delivered as .NET microservices on Azure.

  • Microservice architecture on Clean Architecture, CQRS and MediatR
  • Multi-tenant design with Auth0 and Keycloak identity, authorization and role-based access control
  • Stripe payments and subscription billing workflows
  • Containerised deployments on Azure with Docker, Kubernetes and Helm
  • Automated CI/CD pipelines with GitHub Actions

My contribution Architecture and logical system design, database design, pipeline engineering, and leading the development team.

  • C#
  • .NET
  • Next.js
  • SQL Server
  • Dapper
  • Auth0
  • Keycloak
  • Azure
  • Kubernetes
  • Helm
  • Docker
  • GitHub Actions
  • Stripe

Professional Client / private

Aquinas LMS & CMS

RapidM3 · client project

A learning and content management system that centralises student records, enrolment, grading and course content, with payment management built in.

  • Student information and enrolment workflows
  • Course content management and grading
  • Payment management
  • Instructor and learner communication

My contribution Full-stack development on the Spring Boot and React stack as part of the RapidM3 team.

  • Spring Boot
  • React
  • MySQL
  • JavaScript
  • Git
  • Jira
Professional Client / private

Mount Baptist Kenya — Church Management

RapidM3 · client project

A platform for diocese- and church-level operations covering membership, events, contributions and payments.

  • Member management and event scheduling
  • Contribution tracking and payment processing
  • Leader-to-member communication
  • Reporting with secure data management

My contribution Full-stack development on the Spring Boot and React stack as part of the RapidM3 team.

  • Spring Boot
  • React
  • MySQL
  • JavaScript
  • Git
  • Jira
Professional Client / private

Mount Baptist Kenya — CMS

RapidM3 · client project

A content management system for an institution that centralises student information and simplifies enrolment and grading.

  • Enrolment and grading workflows
  • Secure, current student records
  • Student and faculty communication

My contribution Full-stack development on the Spring Boot and React stack as part of the RapidM3 team.

  • Spring Boot
  • React
  • MySQL
  • JavaScript
  • Git
  • Jira

Case study · Expernetic · 2025 — present

Enterprise microservices platform

A high-scale, cloud-native platform delivered as .NET microservices on Azure, with a Next.js frontend. It is multi-tenant, bills through Stripe subscriptions, and ships through automated pipelines.

Client system, so this describes how it is built and what I owned, not its data, customers or internals.

ClientNext.js
IdentityAuth0 · Keycloak
.NET microservices · Clean Architecture
  • API
  • Application · CQRS + MediatR
  • Domain
  • Infrastructure · Dapper
DataSQL Server
BillingStripe
  1. GitHub Actions
  2. Docker
  3. Helm
  4. Kubernetes on Azure
Simplified. Delivery pipeline shown underneath.

What it had to handle

  • Many tenants, one platformMulti-tenant architecture with role-based access control, so each tenant gets its own permissions on shared infrastructure.
  • Identity across servicesAuthentication and authorization built on Auth0 and Keycloak, applied consistently across the microservices.
  • Money flowsStripe payment integration and subscription billing workflows.
  • Shipping safely and oftenContainerised deployments on Azure with Docker, Kubernetes and Helm, driven by GitHub Actions pipelines, with testing and release management around them.

Engineering decisions

  • Clean ArchitectureDependencies point inward: the domain stays independent of frameworks and infrastructure, which keeps business rules testable and replaceable parts replaceable.
  • CQRS with MediatRCommands and queries are separate requests with explicit handlers, so write and read paths can be reasoned about, tested and evolved on their own.
  • Dapper over SQL Server, with stored proceduresExplicit SQL and stored procedures for data access, so query behaviour is visible and tunable rather than hidden behind an ORM.

My roleArchitecture and logical system design, database design, CI/CD, and leading the development team.

  • C#
  • .NET
  • Next.js
  • SQL Server
  • Dapper
  • Auth0
  • Keycloak
  • Stripe
  • Docker
  • Kubernetes
  • Helm
  • GitHub Actions
  • Azure

05Education & achievements

Degree completed with First Class Honours.

Graduated

BEng in Software Engineering

London Metropolitan University

First Class Honours

2024 — 2025

  • Higher National Diploma in Software Engineering

    National Institute of Business Management (NIBM)

    GPA 3.772023 — 2024

  • Diploma in Software Engineering

    National Institute of Business Management (NIBM)

    GPA 3.752022 — 2023

  • Diploma in English

    International College of Business and Technology (ICBT)

    Distinction2020 — 2021

  • Diploma in Information and Communication Technology

    International College of Business and Technology (ICBT)

    Merit2020 — 2021

  • G.C.E. Advanced Level

    St. Aloysius' College, Galle

    Pass2020

06Contact

Let's talk about what you're building.

Tell me about the system, the team and the timeline. I'll reply with how I'd approach it.

Email[email protected]Phone076 205 0235LinkedIndineth-jayangaGitHubDinethJaayRésuméDownload as PDF

Colombo, Sri Lanka

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