Java Full Stack Engineer with AWS & Microservices

Karthik Togare

Java Full Stack Engineer

Lowell, MA (open to relocate) +1-978-***-**** ***************@*****.*** LinkedIn Professional Summary

Java Full Stack Engineer with 4+ years of experience designing, developing, and supporting enterprise-scale, cloud-native applications across telecom and media domains in the United States and India. Proven expertise in Java (8–17), Spring Boot, microservices architecture, and React, with hands-on experience building high-traffic, high-availability systems serving millions of users. Strong background in AWS cloud services, containerized deployments with Docker, CI/CD pipelines, and performance optimization in distributed environments. Adept at collaborating within Agile/Scrum teams, owning end-to-end features from design through production, and delivering secure, scalable, and resilient software solutions aligned with strict enterprise SLAs. Professional Experience

Comcast Feb 2025 – Present

Java Full Stack Engineer

• ETL Designed and engineered scalable, enterprise-grade full-stack applications using Java 17, Spring Boot, and React, supporting high-traffic platforms with millions of active users while ensuring performance, reliability, and maintainability across releases.

• Architected, developed, and optimized RESTful and microservices-based APIs, implementing asynchronous processing, caching, and fault-tolerant patterns to significantly improve response times, system resilience, and horizontal scalability in distributed environments.

• Implemented cloud-native architectures on AWS leveraging EC2, S3, RDS, and containerized services using Docker, enabling automated deployments, improved environment consistency, and faster release cycles with higher infrastructure reliability.

• Developed modern, responsive, and reusable frontend components using React, TypeScript, HTML5, and CSS3, optimizing UI performance, reducing page load times, and delivering a seamless user experience across web and device platforms.

• Integrated and optimized relational and NoSQL databases including PostgreSQL, MySQL, and MongoDB, designing efficient schemas, queries, and indexing strategies to ensure data consistency, security, high availability, and performance at scale.

• Collaborated closely within Agile/Scrum teams, actively contributing to sprint planning, backlog refinement, code reviews, and CI/CD pipelines using Jenkins and GitHub Actions, while ensuring high code quality through automated unit and integration testing with JUnit and Mockito. Verizon Jan 2024 – Feb 2025

Software Engineer

• Architected, developed, and enhanced high-performance Java microservices using Spring Boot and RESTful APIs, supporting mission-critical telecom applications with millions of concurrent users while ensuring scalability, fault tolerance, and compliance with strict enterprise SLAs.

• Implemented end-to-end service integrations and API orchestration, collaborating with multiple upstream and downstream systems to enable secure data exchange, reduce inter-service latency, and improve overall platform reliability in a distributed microservices environment.

• Leveraged AWS cloud services (EC2, S3, RDS, IAM, CloudWatch) to deploy, monitor, and scale applications in production, contributing to cloud-native architecture improvements that increased system availability and operational resilience.

• Played a key role in production support and performance optimization, analyzing application logs, debugging critical issues, and implementing permanent fixes that reduced incident recurrence and improved mean time to resolution (MTTR).

• Collaborated closely with cross-functional teams including product managers, QA engineers, DevOps, and onshore stakeholders within an Agile/Scrum framework, actively participating in sprint planning, backlog refinement, code reviews, and release activities.

• Optimized database interactions and data persistence layers by writing efficient SQL queries and improving data models, ensuring secure, consistent, and high-throughput handling of large volumes of transactional and customer data. Zensar Technologies May 2021 – Jul 2023

Java Developer

• Designed, developed, and maintained enterprise-grade Java applications using Core Java, Spring, and Spring Boot, contributing to scalable backend systems that supported business-critical workflows and high-volume data processing.

• Developed and consumed RESTful web services for seamless integration between application layers and third-party systems, ensuring secure communication, improved response times, and reliable data exchange across distributed environments.

• Worked extensively on backend business logic, exception handling, and code optimization, improving application performance, readability, and maintainability while adhering to object-oriented design principles and coding standards.

• Collaborated with cross-functional teams including QA, business analysts, and senior engineers to analyze requirements, implement features, fix defects, and deliver stable releases in an Agile development environment.

• Performed database design and query optimization using SQL, handling complex joins, stored procedures, and transactional data to ensure data accuracy, consistency, and efficient backend operations. Skills

• Programming Languages & Frameworks: Java (Java 8–17), Core Java, Spring, Spring Boot, Spring MVC, Hibernate/JPA, Object-Oriented Design, Design Patterns

• Backend & Microservices Development: RESTful API Design, Microservices Architecture, Asynchronous Processing, Fault-Tolerant Systems, API Orchestration, Caching Strategies, Service-to-Service Communication

• Frontend & UI Development: React, TypeScript, JavaScript (ES6+), HTML5, CSS3, Responsive UI Design, Reusable Component Development, Performance Optimization

• Cloud & DevOps Technologies: AWS (EC2, S3, RDS, IAM, CloudWatch), Cloud-Native Application Development, Docker, Containerized Deployments, CI/CD Pipelines, Jenkins, GitHub Actions

• Databases & Data Management: SQL (Advanced Querying, Optimization), PostgreSQL, MySQL, MongoDB, Schema Design, Indexing Strategies, Transaction Management, Data Consistency & Security

• Testing & Quality Engineering: Unit Testing, Integration Testing, JUnit, Mockito, Automated Test Coverage, Code Reviews, Static Code Analysis, Production Readiness

• Build, Version Control & Tools: Git, GitHub, Maven, Gradle, Agile Tooling, Logging & Monitoring, Application Debugging, Performance Tuning

• Software Development Methodologies: Agile/Scrum, Sprint Planning, Backlog Refinement, Continuous Integration, Continuous Delivery, Cross-Functional Collaboration

• Enterprise & Production Support: Production Issue Analysis, Root Cause Analysis (RCA), Incident Management, SLA Compliance, System Reliability, High-Availability Systems

• Professional & Collaboration Skills: Stakeholder Communication, Onshore–Offshore Collaboration, Technical Documentation, Mentoring Junior Developers, Ownership of End-to-End Features Education

Master’s in Computer Science Aug 2023 – Dec 2025

Rivier University, USA

Bachelor in Electronics and Communications Engineering Aug 2018 – Jun 2022 Jawaharlal Nehru Technology of University, India

Projects

E-Commerce Platform (Full-Stack React.js, Node.js, MongoDB, Stripe, AWS S3

• Designed and developed a scalable full-stack e-commerce application featuring user authentication, product catalog management, shopping cart, and secure checkout workflows using Stripe payment integration.

• Implemented RESTful APIs with Node.js and Express, optimized MongoDB data models, and integrated AWS S3 for secure media storage, ensuring high performance, reliability, and scalability. Blog CMS Platform (Next.js, MongoDB Server-Side Rendering)

• Built forecasting models Built a server-side rendered (SSR) content management system using Next.js, enabling SEO-optimized blog pages and improved page load performance for content-driven applications.

• Developed an admin dashboard for content creation, editing, and publishing, with role-based access control and efficient MongoDB data handling.

Real-Time Chat Application (Socket.io, Express, Node.js)

• Built multivariate time-series features Engineered a real-time messaging application using WebSockets (Socket.io) to support instant bidirectional communication, message persistence, and active user presence tracking.

• Optimized backend performance to handle concurrent users while maintaining low-latency message delivery and reliable connection management.

Personal Portfolio Website (Next.js, Tailwind CSS Vercel)

• Forecasted Designed and deployed a modern, responsive portfolio website using Next.js and Tailwind CSS, showcasing projects and technical expertise with optimized performance and accessibility.

• Implemented dark/light mode toggle and deployed the application on Vercel with CI/CD-enabled builds for fast, reliable production releases.

Certifications

• AWS Cloud Practitioner – Amazon Web Services

• JavaScript Algorithms and Data Structures – freeCodeCamp

• MongoDB for Developers – MongoDB University

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