Harshal Kolhe

Software Engineer

Pune, Maharashtra, India5 yrs 6 mos experience

Highly Stable

Key Highlights

5 years of experience in full stack development.
Expert in building scalable microservices and event-driven architectures.
Achieved 450+ automated test cases improving release reliability.

Stackforce AI infers this person is a Full Stack Developer specializing in Fintech and SaaS applications.

Contact

harshalkolhe0@gmail.com LinkedIn

Skills

Core Skills

ReactKotlinJavascriptNode.js

Other Skills

API DevelopmentAlgorithmsApache KafkaApplication Programming Interfaces (API)Back-End Web DevelopmentC#C++CSSCascading Style Sheets (CSS)Competitive ProgrammingData StructuresDockerExpressFront-End DevelopmentFrontend

About

Full Stack Developer with 5 years of experience in designing and developing scalable, high-performance applications using React, JavaScript, Java, and Kotlin. Skilled in building microservices, event-driven architectures (Kafka), and applying system design patterns to solve complex product and business challenges.Currently working at Ernst & Young (EY) on a loan lending platform, where I design and develop APIs using Spring Webflux and build interactive, modular frontends with React, Redux, and Next.js. My work includes implementing role-based access control (RBAC), building computation engines, enhancing API Gateways, and optimizing frontend performance by 30% through efficient builds and reusable components.Previously at Persistent Systems, I developed enterprise observability dashboards and automation platforms using Spring Boot, React, MongoDB, and Azure AD SSO, improving visibility, scalability, and authentication security across global systems.I’m passionate about clean architecture, design patterns (Builder, Factory, Strategy), and test-driven development, with 450+ automated test cases improving release reliability. My strong problem-solving foundation is reflected in global coding achievements — 5★(5 star) on CodeChef, Specialist on Codeforces, Knight on LeetCode, and a top 1% global contest rank (229/21,000).Always eager to collaborate on impactful, high-scale products that blend technical depth with real-world usability.Key Skills: React, JavaScript, Java, Kotlin, Spring Boot, Spring Webflux, Kafka, Microservices, Redux, HTML, CSS, MongoDB, System Design, REST APIs, Webpack, Next.js, Test Automation, Design Patterns.

Experience

5 yrs 6 mos

Total Experience

1 yr 10 mos

Average Tenure

1 yr 10 mos

Current Experience

Ey

Tech Consultant

Aug 2024 – Present · 1 yr 10 mos · Pune, Maharashtra, India · Remote

Loan Lending Platform(Kotlin, React, Javascript, NextJs, JUnit, Jest, Redux)
Integrated Kafka-based Event-Driven Architecture to publish and consume events across microservices, ensuring reliable and
asynchronous communication.
Designed and implemented dynamic loan amount computation logic, considering real-time updates to applicant and co-applicant
attributes.
Developed role-based access control (RBAC) mechanisms, enabling differentiated functionality and permissions based on user roles.
Built scalable REST APIs for cross-service consumption, including data transformation, validation, computation, and efficient
database persistence.
Developed reusable UI components and shared libraries across 3+ products, cutting duplicate code by ~40% and speeding up feature
delivery by ~25%.
Designed a role-product-action config system for dynamic access control, reducing code maintenance and complexity.
Upgraded React and Webpack versions with zero incidents, cutting build size by ~20% and improving load times by ~30%.
Used Builder, Factory, and Strategy Patterns to modularize core logic, improving code extensibility and reducing dev onboarding time.
Authored 100+ test cases (React Testing Library, JUnit), raising coverage to 85% and lowering post-release bugs.
Improved client-side performance with debouncing and field validation, reducing API calls by ~40% and increasing form success.
Configured product logic at API Gateway, reducing code changes for rollouts by ~70%.

KotlinReactJavaScriptNext.jsJUnitJest+3

Citiustech

Senior Software Engineer

May 2024 – Aug 2024 · 3 mos · Pune, Maharashtra, India · On-site

Persistent systems

2 roles

Senior Software Engineer

Promoted

Nov 2022 – May 2024 · 1 yr 6 mos · Pune, Maharashtra, India

Enterprise Application Observability(React, Redux, Javascript,HTML, CSS, Express, EJS)
Led development of an enterprise application observability dashboard, offering holistic insights into application health for informed
decision-making.
Engineered a robust codebase using Elastic Search API for real-time data retrieval, bolstering monitoring capabilities.
Enhanced app performance, achieving a 40% decrease in page loading time through optimization techniques, enhancing user
experience and efficiency.
Seamlessly integrated Azure AD SSO with role-based access, enhancing security and user authentication efficiency.
Global IT Automation Dashboard(ReactJS, Redux, Tailwind Css, NodeJs, Express, MongoDB)
Collaborated on designing and developing a full stack dashboard as a centralized hub with robust test case tracking and filters.
Improved efficiency using Redux by caching recent searches, reducing repeated API calls.
Added debouncing logic to trigger API calls only when typing pauses exceed 300 ms, cutting unnecessary requests.
Used cookie-parser to manage JWT tokens securely in cookies for better authentication.
Implemented pagination to improve page load times and user experience.
Used Tailwind CSS for a responsive, clean UI and custom hooks to reduce code dup