01
Backend & APIs
Designing services and communication boundaries that stay clear as systems grow.
Available for select engineering projects
Pulasthi
Aberathne
Full-Stack Engineer
I build reliable production systems across backend, frontend, and cloud infrastructure.
Senior software engineer with 7+ years of experience building and operating production software across distributed systems, APIs, web and mobile applications, and cloud infrastructure.
A systems view
Client
API
Services
Data
Cloud
01 reliability is a design constraint
Scroll to explore
/ 01 — About
Engineering with the whole system in view.
I'm a full-stack software engineer with 7+ years of experience building and maintaining production software. My work spans backend services and APIs, distributed systems, frontend and mobile applications, cloud infrastructure, and the troubleshooting that happens after launch.
I currently work on enterprise distributed systems using Java, Spring Boot, NestJS, TypeScript, React, gRPC / Protocol Buffers, Kubernetes, and GCP. Previously, I worked extensively with Node.js, React Native, PostgreSQL, MongoDB, and AWS.
That range helps me contribute across boundaries: from authentication and integrations to code review, technical leadership, and the details that make a system dependable in practice.
/ 02 — Expertise
Capability areas
A practical toolkit shaped by production work, not a checklist.
02
Frontend & Mobile
Building focused interfaces across web and mobile, with the API contract in mind.
03
Cloud & Platform
Working close to the runtime: deployments, environments, and the systems that keep products moving.
04
Data & Systems
Connecting data, integrations, and distributed system concerns into dependable product behavior.
/ 03 — Selected work
Systems I've worked on
A few representative case studies. The details stay grounded in what can be shared.
01
Platform engineering
Unified Location Discovery Platform
A backend platform that combined location and place information from multiple external providers into a consistent discovery experience.
- Built backend services integrating multiple external data providers.
- Normalized heterogeneous provider data into consistent application models.
- Implemented geographic deduplication, relevance-based ranking, and proximity-aware search.
- Used caching to reduce unnecessary external API calls and exposed a consistent API layer to consumers.
02
Current professional work
Enterprise Distributed Services
Building and maintaining enterprise distributed services and applications using Java / Spring Boot and TypeScript / NestJS, with service-to-service communication using gRPC / Protocol Buffers and deployment into Kubernetes-based cloud environments.
- Details intentionally limited to respect client and employer confidentiality.
03
Product engineering
Mobile & Web Product Engineering
Professional work across React, React Native, and TypeScript applications, including API integration, GraphQL, mobile development, production troubleshooting, and reliability work.
/ 04 — Writing
Notes from the field.
Featured article
gRPC vs REST: What I Learned Using Both in Distributed Systems
Why the right choice depends less on the technology and more on the communication boundary you’re designing.
Read on Medium/ 05 — Contact
Let's build something reliable.
I'm open to discussing engineering projects, technical collaboration, and opportunities where I can help build or improve production software.