Kamlesh Kumar — Software Engineer

I am a Java Full-Stack Developer with 4 years of experience delivering secure, stable, and policy-aligned digital systems for high-trust environments. My work is focused on building reliable backend services and structured frontends that support critical operations and follow strict security and compliance requirements.I follow a disciplined engineering approach clear coding standards, proper documentation, and systems that stay consistent, predictable, and easy to audit. My priority is to build solutions that work without disruption and remain dependable under scale and real-world pressure.Core Expertise:• Backend: Java, Spring Boot, Microservices, REST APIs • Frontend: React.js, Angular • Databases: PostgreSQL, MySQL • Integration: RabbitMQ, secure API communication • Cloud & DevOps: Azure (App Services, CI/CD), AWS • Practices: Secure Coding, Scalable Architecture, Clean Code, Agile/Scrum I have worked on platforms where accuracy, data protection, and operational continuity are critical. I am comfortable in environments that require accountability, structured processes, and strict adherence to technical and governance standards.Guided by the principle “The Next Big Step,” I continue to strengthen my skills to meet the growing needs of modern digital systems. My goal is to create solutions that are clear, secure, and stable systems that support long-term reliability and stand firm in demanding enterprise and government settings.Calm, focused, and responsibility-driven committed to delivering technology that meets expectations with discipline and consistency.

Stackforce AI infers this person is a Backend-heavy Fullstack developer with expertise in Government and Fintech sectors.

Location: Bengaluru, Karnataka, India

Experience: 8 yrs 7 mos

Skills

Java
Spring Boot
React.js

Career Highlights

Expert in building secure, scalable backend systems.
Proven track record in high-stakes government projects.
Strong experience in Fintech and E-commerce domains.

Work Experience

Unique Identification Authority of India (UIDAI)

Software Engineer (1 yr)

StableOne Software

Software Developer | Java Software Development Engineer | Java | Spring Boot | REST APIs (9 mos)

PW (PhysicsWallah)

Java Software Development Engineer | Java | Spring Boot | REST APIs (1 yr 6 mos)

Infosys

System Engineer | Java Software Development Engineer | Java | Spring Boot | REST APIs (1 yr 5 mos)

Dr. APJ Abdul Kalam Technical University (affiliated institutes)

Student (3 yrs 11 mos)

Education

Bachelor of Technology - BTech at Dr. A.P.J. Abdul Kalam Technical University

Kamlesh Kumar

Software Engineer

Bengaluru, Karnataka, India8 yrs 7 mos experience

Key Highlights

Expert in building secure, scalable backend systems.
Proven track record in high-stakes government projects.
Strong experience in Fintech and E-commerce domains.

Stackforce AI infers this person is a Backend-heavy Fullstack developer with expertise in Government and Fintech sectors.

Contact

Skills

Core Skills

JavaSpring BootReact.js

Other Skills

AWSAgileAgile MethodologiesApacheApache KafkaBack-End Web DevelopmentBootstrapC++CI/CDCascading Style Sheets (CSS)Cloud ComputingData StructuresData Structures & AlgorithmsDocker ProductsEngineering

About

Experience

8 yrs 7 mos

Total Experience

1 yr 10 mos

Average Tenure

1 yr

Current Experience

Unique identification authority of india (uidai)

Software Engineer

Jun 2025 – Present · 1 yr · Bengaluru, Karnataka, India · On-site

Software Engineer | Java Backend | UIDAI – Unique Identification Authority of India
Ministry of Electronics & IT, Government of India
Building secure, large-scale backend systems for India’s national digital identity platform. Working on mission-critical services within the Aadhaar ecosystem, ensuring high availability, strong data protection, and seamless delivery of citizen services.
Collaborating closely with senior IAS/IRS officers to align technical development with national digital identity policies and compliance standards.
Key Responsibilities:
Developing secure Java/Spring Boot microservices for Aadhaar authentication, e-KYC, and verification workflows.
Creating reliable REST APIs for real-time data exchange with government and authorized partner systems.
Managing AWS infrastructure (EC2, RDS, S3) to ensure scalability, uptime, and disaster recovery.
Automating builds and deployments using Jenkins to support smooth, zero-downtime releases.
Strengthening security with encryption, optimized queries, and adherence to UIDAI and government-approved guidelines.
Conducting code reviews, improving monitoring, and contributing to vulnerability mitigation and system hardening.
Tech Stack:
Java | Spring Boot | Microservices | REST APIs | PostgreSQL | AWS (EC2, RDS, S3) | Jenkins | Maven | Git | Secure Coding
Impact:
Improved backend reliability and security for Aadhaar’s large-scale systems.
Increased deployment speed and service uptime through Jenkins automation and AWS optimization.
Contributed to India’s digital identity mission by ensuring compliance, performance, and secure service delivery.

JavaSpring BootMicroservicesREST APIsPostgreSQLAWS+4

Stableone software

Software Developer | Java Software Development Engineer | Java | Spring Boot | REST APIs

Sep 2024 – Jun 2025 · 9 mos · Kolkata metropolitan area, West Bengal, India · On-site

Backend Developer | Microservices & Cloud | Banking & Payments Domain
Designed and implemented scalable microservices for banking and payment systems using Java (Spring Boot), PostgreSQL, RabbitMQ, Redis, and AWS (ECS, EKS, RDS, Lambda).
Key Responsibilities:
Built secure JWT/OAuth2 authentication with Role-Based Access Control (RBAC) and Redis token blacklisting.
Implemented biometric KYC using AWS Rekognition and Face++ for liveness and identity verification.
Integrated AML/PEP sanctions screening (OFAC, UN lists) in onboarding and transaction workflows.
Designed event-driven payment workflows across Transaction, Fraud, and Notification services using RabbitMQ.
Developed a secure short-link generation system with token-based expiration.
Integrated Behavioral Detection & Intelligence (BDI) for anomaly and fraud detection.
Created a Payment POC combining Authentication, Liveness, and Payment microservices.
Deployed services on AWS with automated CI/CD pipelines (GitHub Actions, CodePipeline).
Designed efficient schemas, optimized PostgreSQL queries, and ensured ACID compliance.
Configured RabbitMQ for async communication and built SMTP/SendGrid-based email notifications.
Enabled service discovery and load balancing using Eureka Server.
Developed and documented RESTful and GraphQL APIs with Swagger/OpenAPI.
Tech Stack:
Java | Spring Boot | PostgreSQL | RabbitMQ | Redis | AWS (ECS, EKS, RDS, Lambda) | OAuth2 | JWT | Eureka | Swagger | CI/CD | Face++ | AWS Rekognition
Impact:
Strengthened onboarding security with biometric and AML/PEP compliance.
Reduced database latency through optimized queries and indexing.
Improved system reliability and scalability via async communication and cloud deployment.

JavaSpring BootPostgreSQLRabbitMQRedisAWS+5

Pw (physicswallah)

Java Software Development Engineer | Java | Spring Boot | REST APIs

Feb 2023 – Aug 2024 · 1 yr 6 mos · Bengaluru, Karnataka, India · Hybrid

Software Engineer | Java, Spring Boot, React.js | LMS & Web App Optimization
Developed and optimized web applications and LMS modules, delivering scalable, user-focused solutions using React.js and Spring Boot.
Key Responsibilities:
Revamped the frontend architecture with React.js and integrated with Spring Boot backend, improving user retention by 35% and reducing UI errors by 20%.
Designed and developed a secure LMS module featuring course purchasing flow, enrollment logic, and a dynamic checkout card component.
Built and integrated RESTful APIs in Java for course enrollment, payment processing, and progress tracking.
Implemented CI/CD pipelines using GitHub Actions to automate testing and deployment, achieving 99.9% uptime.
Led deployment optimization strategies that reduced client-reported issues by 30%.
Conducted multiple design thinking workshops to align business goals and technical solutions.
Collaborated closely with Product, UI/UX, and Backend teams to ensure seamless feature rollouts and consistent performance across modules.
Tech Stack:
React.js | Java | Spring Boot | PostgreSQL | REST APIs | GitHub Actions | CI/CD | Agile
Impact:
Enhanced e-learning experience through optimized frontend-backend integration, increasing transaction success and overall usability.
Improved product reliability, reduced release cycles, and boosted performance through agile methodologies and continuous delivery practices.

React.jsJavaSpring BootPostgreSQLREST APIsGitHub Actions+2

Infosys

System Engineer | Java Software Development Engineer | Java | Spring Boot | REST APIs

Sep 2021 – Feb 2023 · 1 yr 5 mos · Bangalore Urban, Karnataka, India · Hybrid

Software Engineer | Java Backend | Infosys (Client: Levi Strauss & Co., E-commerce)
Developed and maintained high-performance Java backend services for Levi Strauss & Co.’s global e-commerce platform, enhancing scalability, speed, and system reliability.
Key Responsibilities:
Designed and implemented scalable backend components using Java and Spring Boot, improving website response time by 30%.
Developed a bulk upload module to streamline product and catalog updates, reducing manual effort by 90%.
Optimized MySQL database schemas and indexing, increasing query performance and data retrieval efficiency by 25%.
Built and maintained RESTful APIs to support dynamic product management and seamless frontend integration.
Collaborated with globally distributed teams across development, QA, and DevOps to ensure high system availability and smooth feature releases.
Adhered to agile methodologies, enabling faster sprint delivery and proactive client engagement throughout development cycles.
Tech Stack:
Java | Spring Boot | MySQL | REST APIs | Git | Maven | Agile | E-commerce
Impact:
Improved operational efficiency and backend performance for a high-traffic e-commerce platform.
Delivered optimized backend solutions aligned with business goals, resulting in enhanced customer experience and faster site performance.

JavaSpring BootMySQLREST APIsGitMaven+1

Dr. apj abdul kalam technical university (affiliated institutes)

Student

Aug 2017 – Jul 2021 · 3 yrs 11 mos · Lucknow, Uttar Pradesh, India · On-site

Academic & Project Experience | Software Development & Problem Solving
Developed strong analytical and programming skills through academic coursework and hands-on project experience in software development, data structures, algorithms, and system design.
Key Highlights:
Strengthened problem-solving abilities by working on complex algorithmic and data structure challenges.
Gained practical experience with Java, C++, and JavaScript, applying them across backend and frontend development projects.
Completed multiple academic and personal projects involving OOP concepts, REST API integration, and full-stack application design.
Built foundational knowledge in networking, operating systems, and database management to support scalable software solutions.
Applied software engineering principles, agile practices, and version control (Git) throughout project lifecycles.
Focused on writing clean, maintainable, and optimized code to solve real-world technical problems.
Technologies:
Java | C++ | JavaScript | Data Structures & Algorithms | Networking | Full-Stack Development | OOP | REST APIs | Git | Agile
Impact:
Gained a strong foundation in computer science and system design principles.
Developed a problem-solving mindset aligned with real-world software engineering challenges.
Strengthened technical versatility across multiple programming paradigms and domains.