Sajith Vijesekara

I’m a Seasoned Software Technical Lead with over 10+ years of experience in backend development and software architecture, including the last 4 years leading engineering teams and delivering high-impact solutions for enterprise clients.

Throughout my career, I have successfully designed, developed, and deployed multiple enterprise-grade applications across diverse industries such as Telecommunications, E-commerce, Construction Finance, Education, Healthcare, and Restaurant Services. I specialize in Java, Spring Boot, Hibernate, Node.js, and React, with deep proficiency in building scalable microservices and APIs.

My cloud expertise spans AWS and Azure, where I’ve built and deployed cloud-native applications leveraging Docker, Kubernetes, and serverless architecture. I’m proud to be recognized as an AWS Community Builder and hold the Certified Kubernetes Application Developer (CKAD) certification.

I bring a strong understanding of software engineering best practices , DevOps, and agile methodologies, and I thrive in leading cross-functional teams to turn complex technical requirements into clean, maintainable, and performant solutions.

Expertice Areas :

• Telecommunication
• E-commerce
• Construction finance
• Education
• Restaurant
• Healthcare

Major specialized areas

• Backend: Java , Node.js, Python , GoLang
• Frameworks : Spring, Nest, Fast API
• Cloud Platforms : AWS, Azure, Gcp
• Orchestration: Docker, kubernetes, Terraform
• Frontend: React
• Monitoring and Logging: Grafana , Datadog

Experience

Technical Lead

Sysco Labs

Designing an Enterprise Invoice Management System, ensuring scalability and efficiency
Engaging with customers to gather and refine requirements
Conducting code reviews to maintain code quality and best practices
Designing new integrations to enhance system capabilities
Leading a development pod of 7–8 developers, providing technical guidance and mentorship.

Java

Spring

Postgresql

AWS

Mar 2024 - Present

Technical Lead

Estabild

Lead Backend Developer
Design And Developed World leading Real estate development software

ReactJs

Spring

AWS

Jul 2022 - Present

Technical Lead

Arimac

Leading Telco Products
Collaborating with product line management to identify , refine and translate customer needs into concrete technical requirements
Leading architectural tasks and design for telco products

Java

Webflux

MongoDb

Jul 2021 - Jul 2022

Senior Software Engineer

Arimac

Managed the telco Development team
Play lead developer role for design & developing contact tracing solution for covid-19’s patients.
Performed requirement analysis, design & development of Telco Selfcare solution

Apr 2020 - Jul 2021

Senior Software Engineer

Applova Inc

Design & developed POS system for restaurant base automation ordering platform.
Design & architecture pos system to cater performance requirements.
Streamline project development work flows with junior developers.

Apr 2019 - Apr 2020

Software Engineer

Applova Inc

Responsible of development process of telco analytical platform.
Act as Mobile Development Role for POS application for restaurant ordering system.

Apr 2017 - Apr 2019

Software Engineer

hsenid Mobile Solutions

Responsible of development process of a Mobile Money Platform for Telco Domain.
Worked as Web & Mobile Developer

Jan 2015 - Apr 2017

Education

Skills

• Enterprise Architecture Design
  Designing scalable, maintainable, and modular enterprise systems aligned with business strategies to support growth and innovation.
• Microservices and API Design
  Building loosely coupled microservices and RESTful APIs to enable efficient, flexible integration and rapid feature delivery.
• Cloud Computing and Integration
  Expertise in leveraging AWS, Azure, and GCP cloud platforms for scalable infrastructure, seamless service integration, and cost optimization.
• Performance Optimization and Scalability
  Implementing caching, load balancing, and efficient code practices to ensure applications handle growth without degradation.
• Security and Compliance
  Applying industry security standards, data protection, and compliance policies to safeguard systems and sensitive information.

Projects Highlights

Movie Booking Platform

Personal
Built a Flutter-based app for movie ticket booking with features like latest release listings and secure payments. Focused on delivering a smooth user experience with an intuitive and responsive interface

Mobile

Flutter

Android

Ios

SimpleHR.io

Personal
SimpleHR is an AI-powered HR platform that automates candidate management, interview scheduling, and recruitment workflows to streamline hiring processes. By leveraging intelligent agents, it enhances decision-making and improves collaboration across HR teams

Saas

React

Spring

AWS

Estabild Platform

Work
Estabild is a construction finance platform that streamlines budgeting, cost tracking, and financial management for contractors and builders. It helps improve accuracy, transparency, and control over project finances through intuitive tools and real-time data.

java

spring

aws

microservices

Applova Platform

Work
Contributed to backend development of Applova’s All-in-One platform—a unified restaurant solution with online ordering, kiosks, POS, and loyalty features. Built scalable APIs and integrated third-party services for cloud-based deployment

java

spring

aws

microservices

Univox.io

Personal
Univox is a universal AI-powered platform that automates routine voice calls with customers using intelligent agents. It streamlines daily communication tasks, improving efficiency and freeing up human resources for higher-value work

Python

AI

aws

K8

OneHire.lk

Personal
OneHire.lk is a leading platform connecting IT professionals with the latest job opportunities and industry insights worldwide. Whether you're an experienced expert or just starting out, it helps you find the perfect role aligned with your skills and career goals

React

spring

aws

microservices