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Hi, I’m Avinash Manchala, a Java Backend / Full Stack Engineer with over four years of experience building production-grade applications in financial services and enterprise environments. I specialize in Java, Spring Boot microservices, Kafka event processing, and React-based front ends. I’ve led initiatives to improve performance, stabilize high-throughput services, and support AWS-hosted deployments. In cross-functional agile teams, I own features end-to-end and deliver reliable, scalable solutions in regulated, high-availability contexts. I enjoy collaborating with product, ops, and security teams to design robust APIs, reusable UI components, and automation that reduces deployment risk and accelerates delivery.…Hi, I’m Avinash Manchala, a Java Backend / Full Stack Engineer with over four years of experience building production-grade applications in financial services and enterprise environments. I specialize in Java, Spring Boot microservices, Kafka event processing, and React-based front ends. I’ve led initiatives to improve performance, stabilize high-throughput services, and support AWS-hosted deployments. In cross-functional agile teams, I own features end-to-end and deliver reliable, scalable solutions in regulated, high-availability contexts. I enjoy collaborating with product, ops, and security teams to design robust APIs, reusable UI components, and automation that reduces deployment risk and accelerates delivery.

Avinash Manchala

Full Stack Developer, Web Developer, Back-End Developer, +5

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Hi, I’m Avinash Manchala, a Java Backend / Full Stack Engineer with over four years of experience building production-grade applications in financial services and enterprise environments. I specialize in Java, Spring Boot microservices, Kafka event processing, and React-based front ends. I’ve led initiatives to improve performance, stabilize high-throughput services, and support AWS-hosted deployments. In cross-functional agile teams, I own features end-to-end and deliver reliable, scalable solutions in regulated, high-availability contexts. I enjoy collaborating with product, ops, and security teams to design robust APIs, reusable UI components, and automation that reduces deployment risk and accelerates delivery.…Hi, I’m Avinash Manchala, a Java Backend / Full Stack Engineer with over four years of experience building production-grade applications in financial services and enterprise environments. I specialize in Java, Spring Boot microservices, Kafka event processing, and React-based front ends. I’ve led initiatives to improve performance, stabilize high-throughput services, and support AWS-hosted deployments. In cross-functional agile teams, I own features end-to-end and deliver reliable, scalable solutions in regulated, high-availability contexts. I enjoy collaborating with product, ops, and security teams to design robust APIs, reusable UI components, and automation that reduces deployment risk and accelerates delivery.

Available to hire

Hi, I’m Avinash Manchala, a Java Backend / Full Stack Engineer with over four years of experience building production-grade applications in financial services and enterprise environments. I specialize in Java, Spring Boot microservices, Kafka event processing, and React-based front ends. I’ve led initiatives to improve performance, stabilize high-throughput services, and support AWS-hosted deployments.

In cross-functional agile teams, I own features end-to-end and deliver reliable, scalable solutions in regulated, high-availability contexts. I enjoy collaborating with product, ops, and security teams to design robust APIs, reusable UI components, and automation that reduces deployment risk and accelerates delivery.

Skills

Experience Level

Expert

Expert

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Intermediate

Intermediate

Language

English

Fluent

Work Experience

Java Full Stack Developer at Fidelity Investments

January 1, 2025 - Present

Collaborated with cross-functional teams to analyze legacy workflows, eliminating redundancies and improving system efficiency by 20% in the first two months. Engineered scalable Kafka Streams workflows processing 5TB+ of daily data with 99.9% uptime, enabling real-time analysis and executive-level reporting. Developed a library of 15+ reusable React components with Context API and Hooks, reducing front-end code duplication by 40% and shortening delivery time by 25%. Optimized MongoDB pipelines with advanced queries and indexing, improving query speed by 60% and boosting scalability by 40%. Automated AWS EC2 configurations with SSM, increasing deployment velocity by 40%.

Java Full Stack Developer at Tata Consultancy Services (TCS)

August 1, 2023 - September 12, 2025

Enhanced application performance by optimizing Spring Boot microservices, decreasing average transaction processing time by 40% and reducing server costs by 15% in compute and data storage. Integrated third-party services with OAuth 2.0 and applied API Gateway rules to manage request limits and maintain performance. Enhanced database architecture by tuning indexes and optimizing data retrieval processes, leading to a 50% decrease in data access latency and improved transaction processing speeds by 40%. Set up Dockerized deployments and Jenkins pipelines to automate releases, reducing errors and making deployments more reliable. Practiced TDD using JUnit and Mockito while validating APIs through Postman collections to maintain strong test coverage and consistent delivery quality.

Junior Java Full Stack Developer at Insight Global

February 1, 2022 - September 12, 2025

Built RESTful APIs and backend tools in Java (Spring MVC), reducing report generation time by 60% and saving 4+ hours weekly for each business analyst across multiple teams. Optimized Oracle JDBC queries and batch jobs, eliminating 10+ recurring data bottlenecks and improving batch cycle execution speed by 40%, ensuring seamless daily operations. Designed JSP-based interfaces with HTML, CSS, and Bootstrap, enhancing usability and improving navigation efficiency, which cut end-user support tickets by 25%. Automated CI/CD pipelines using Jenkins and Docker, reducing deployment errors by 35% and accelerating release cycles by 20%, increasing delivery confidence for stakeholders. Achieved 85%+ unit test coverage with JUnit, preventing production defects and improving system stability by 30%.

Java Full Stack Developer at Fidelity Investments

January 1, 2025 - Present

Collaborated with cross-functional teams to analyze legacy workflows, eliminating redundancies and improving system efficiency by 20% in the first two months; engineered scalable Kafka Streams workflows processing 5TB+ daily data with 99.9% uptime for real-time analysis and executive reporting; developed a library of 15+ reusable React components with Context API and Hooks, reducing frontend code duplication by 40% and delivery time by 25%; optimized MongoDB pipelines with advanced queries and indexing, boosting query speed by 60% and scalability by 40%; automated AWS EC2 configurations with SSM, increasing deployment velocity by 40% and accelerating time-to-market.

Java Full Stack Developer at Tata Consultancy Services (TCS)

August 1, 2023 - September 12, 2025

Enhanced application performance by optimizing Spring Boot microservices, decreasing average transaction processing time by 40% and reducing server costs by 15%; integrated third-party services with OAuth 2.0 and applied API Gateway rules to manage request limits and maintain performance; enhanced database architecture by tuning indexes and optimizing data retrieval processes, leading to a 50% decrease in data access latency and 40% improvement in transaction processing speeds; set up Dockerized deployments and Jenkins pipelines to automate releases, reducing errors and increasing deployment reliability; practiced TDD using JUnit and Mockito while validating APIs through Postman collections to maintain strong test coverage.

Junior Java Full Stack Developer at Insight Global

February 1, 2022 - September 12, 2025

Built RESTful APIs and backend tools in Java (Spring MVC), reducing report generation time by 60% and saving 4+ hours weekly for each business analyst; optimized Oracle JDBC queries and batch jobs, eliminating 10+ recurring data bottlenecks and improving batch cycle execution speed by 40%; designed JSP-based interfaces with HTML, CSS, and Bootstrap to enhance usability and reduce end-user support tickets by 25%; automated CI/CD pipelines using Jenkins and Docker, reducing deployment errors by 35% and accelerating release cycles by 20%; achieved 85%+ unit test coverage with JUnit, preventing production defects and improving system stability by 30%.

Java Full Stack Engineer at Fidelity Investments

March 1, 2025 - October 27, 2025

Senior full-stack engineer focused on designing, developing, testing, and implementing enterprise applications. Worked across Python and Java ecosystems; implemented RESTful APIs and MVC patterns in Node.js and Django; leveraged AWS services (EC2, S3, ELB, CloudFront) and NoSQL (MongoDB, Redis) as well as relational DBs (Oracle, MySQL, PostgreSQL). Supported Agile/Scrum development; data analytics tooling with Pandas, NumPy, SciPy; automated container-based deployments with Docker and Jenkins; applied TDD with JUnit/Mockito; validated APIs with Postman.

Assistant Systems Engineer at Tata Consultancy Services (TCS)

August 1, 2023 - August 1, 2023

Delivered modular Spring Boot microservices to support financial transaction processing. Built features for a client-facing portal using Spring Boot and React.js; led a customer onboarding module reducing user registration time by 40%. Integrated OAuth 2.0-secured third-party services via API Gateway and managed rate limits. Optimized MySQL queries through indexing. Automated container-based deployment with Docker and Jenkins. Applied TDD with JUnit and Mockito; verified API behavior with Postman.

Java Developer at Insight Global

February 1, 2022 - February 1, 2022

Developed backend services using Java and Spring MVC to support internal tools; optimized JDBC-based data operations on Oracle. Designed JSP-based user interfaces with HTML and Bootstrap. Wrote unit tests for the DAO layer with 85%+ coverage. Participated in daily standups, tracked sprint progress in Jira, and managed Git-based releases.

Assistant Systems Engineer at Tata Consultancy Services (TCS) – India

August 1, 2023 - August 1, 2023

Delivered modular Spring Boot microservices to support financial transaction processing; built client-facing portal features using Spring Boot and React; led a customer onboarding module reducing user registration time by 40%; integrated OAuth 2.0-secured third-party services via API Gateway; improved MySQL response times through query optimization and indexing; automated container-based deployment using Docker and Jenkins; applied TDD with JUnit and Mockito and verified API behavior with Postman.

Java Developer at Insight Global – India

February 1, 2022 - February 1, 2022

Developed backend services using Java and Spring MVC to support internal tools, with optimized JDBC-based data operations on Oracle; designed JSP-based user interfaces with HTML and Bootstrap; wrote unit tests for the DAO layer achieving 85% test coverage; participated in daily standups, tracked sprint progress via Jira, and managed releases using Git.

Java Backend / Full Stack Engineer at Fidelity Investments

January 1, 2025 - Present

Owned backend enhancements for Spring Boot microservices supporting internal financial workflows, improving processing efficiency and reducing operational delays. Designed and supported Kafka-based event pipelines handling multi-terabyte daily data volumes with strict availability and reliability requirements. Built reusable React components and shared UI utilities, reducing front-end rework and improving delivery predictability across releases. Optimized MongoDB queries and indexing strategies to improve API response times under increasing transaction load. Supported AWS EC2 deployments and configuration automation using Systems Manager (SSM), improving deployment stability in regulated environments.

Java Full Stack Engineer at Tata Consultancy Services (TCS)

March 1, 2022 - August 1, 2023

Expanded and maintained Spring Boot microservices for enterprise client applications, focusing on performance, scalability, and API reliability. Executed secure REST APIs using OAuth 2.0 and API Gateway policies for authentication, authorization, and traffic control. Tuned relational database queries and indexing strategies to reduce latency for high-volume transactional services. Applied Docker-based builds and Jenkins CI pipelines to standardize releases and reduce deployment-related issues. Wrote unit and integration tests using JUnit and Mockito, validating APIs with Postman to support stable production releases.

Junior Java Engineer at Insight Global

August 1, 2020 - February 1, 2022

Built REST APIs and backend services using Java and Spring MVC for internal reporting and data processing tools. Optimized Oracle JDBC queries and batch jobs supporting daily business operations. Improved JSP-based UI screens using HTML, CSS, and Bootstrap for internal users. Assisted with CI/CD pipelines using Jenkins and Docker to improve deployment consistency. Maintained unit test coverage to reduce regression issues during releases.