Diyohan De Silva

DevOps Engineer & Software Architect

Results-oriented DevOps Engineer with 5+ years of experience in cloud infrastructure, software development, and site reliability engineering

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About Me

Results-oriented DevOps Engineer with 5+ years of experience spanning cloud infrastructure, software development, data engineering, and site reliability engineering. Proven track record in architecting, deploying, and maintaining scalable, highly available applications in dynamic cloud environments.

Strong background in identifying and resolving bottlenecks in large-scale software systems, driving performance optimization, process improvements, and enabling continuous delivery. Skilled in Agile methodologies, end-to-end DevOps practices, and fostering seamless cross-functional collaboration to deliver mission-critical solutions on time and at scale.

5+

Years Experience

99.99%

Service Availability

10TB+

Data Migrated

Work Experience

Feb 2025 - Present

Associate DevOps Engineer

T-Mobile (Contract) - Dallas, TX

Leading data migration projects and incident resolution for mission-critical systems.

  • Designed and implemented end-to-end data pipelines ensuring 99.999% data integrity
  • Enabled migration of over 10TB of data with zero downtime across distributed systems
  • Led incident triage achieving 40% reduction in mean time to resolution (MTTR)
  • Mentored 8+ new engineers, reducing onboarding time by 30%
  • Improved system stability by 35% and scalability by 50%
Aug 2022 - Present

Lead Software Architect / Lead Developer

Impetus - Dallas, TX

Personal project developing large-scale Unity-based applications with full DevOps integration.

  • Developed large-scale Unity-based game from scratch with complete codebase design
  • Built and managed Azure DevOps pipeline for automated build, test, and deployment
  • Configured resource access management in Azure for secure cloud integration
  • Created comprehensive documentation improving maintainability and team collaboration
Aug 2020 - Jan 2025

Associate Software Engineer / DevOps

DirecTV (Contract) - Dallas, TX

Developed and deployed software solutions for mission-critical applications with focus on high availability.

  • Led legacy application containerization resulting in 60% faster deployment cycles
  • Achieved 100% environment consistency across development, staging, and production
  • Reduced manual compliance effort by 70% through automation recommendations
  • Reduced MTTR by 50% and maintained monthly SLA of 99%
  • Implemented cloud-based solutions in Azure and virtualized environments

Skills & Technologies

Programming Languages

Python Java JavaScript C# SQL PL/SQL

Cloud & DevOps

Azure DevOps GitLab CI/CD Azure Data Factory Azure Data Storage

Tools & Frameworks

Databricks Spark Logic Apps Spring Boot Unity Git

Methodologies

Agile DevOps CI/CD Site Reliability ServiceNow Microservices Distributed Systems

Education & Certifications

Bachelor of Science in Software Engineering

University of Texas at Dallas

2018 - 2020

Dallas, TX, USA

Notable Projects:

  • NLP Chatbot with sentiment analysis for movie recommendations
  • Spring Boot web app for hiring risk score calculations
  • Custom Java JUnit-integrated coverage analysis tool

Associate of Science, Computer Science

Collin Community College

2015 - 2018

Plano, TX, USA

Focus: Data Structures, Algorithms, and Integral Calculus

Azure Fundamentals Certification

Microsoft Azure

Certified in Azure cloud fundamentals and best practices

Featured Projects

NLP Chatbot

NLP Sentiment Analysis Chatbot

Developed a sophisticated chatbot using sentiment analysis to provide personalized movie recommendations based on user preferences and emotions.

Python NLP Machine Learning
GitHub
Unity Game

Large-Scale Unity Game Development

Built a comprehensive Unity-based game from scratch with complete Azure DevOps integration and automated deployment pipeline.

Unity C# Azure DevOps
GitHub
Background Check App

Background Check Web Application

Designed a Spring Boot-based web application to calculate risk scores for hiring decisions with comprehensive data analysis.

Spring Boot Java SQL
GitHub

Let's Connect

diyohansanjaydesilva@gmail.com
(469) 328-5250
Dallas, TX, USA