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Rajesh Singh Kadyan

@rajeshsinghkadyan

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Senior Backend Engineer specializing in Java, Spring Boot, microservices and cloud.

India

Message

What I'm looking for

I seek fully remote backend roles focused on scalable Java/Spring Boot microservices, cloud-native architectures, CI/CD excellence, and mentoring opportunities in collaborative, documentation-first teams.

I am a Senior Backend Engineer with 6.7+ years building scalable, cloud-native applications for global clients, specializing in Java, Spring Boot, microservices, AWS and GCP. I deliver high-availability systems and have a strong record of reducing latency and improving database performance.

My work includes designing REST APIs, implementing cloud-native microservices, optimizing SQL and automating CI/CD pipelines, which led to metrics such as 40% latency reduction, 30% faster query execution and 99.9% uptime. I have built event-driven systems, distributed caching, and resilient backend services for high-traffic applications.

I thrive in remote, async environments and mentor teams on API best practices, documentation-first workflows and robust security (JWT/OAuth2, OWASP). I seek impactful backend roles where I can drive scalable architecture, operational excellence and cross-functional collaboration.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Engineer

Current

Brillio Technologies

Jun 2023 - Present (2 years 7 months)

Designed scalable REST APIs and cloud-native microservices using Java 11 and Spring Boot, reducing latency by 40% and achieving 99.9% uptime while mentoring junior engineers and standardizing API best practices.

Java Spring Boot Microservices AWS Lambda GitHub Actions Jenkins

Software Development Engineer

Freelance

Feb 2023 - Jun 2023 (4 months)

Delivered end-to-end Spring Boot microservices for international clients, migrated enterprise systems to microservices, and implemented secure JWT/OAuth2 authentication modules to improve compliance.

Spring Boot Microservices JWT OAUTH2 REST APIs Remote Collaboration Documentation First

Software Engineer

Ivy Comptech

Jan 2022 - Feb 2023 (1 year 1 month)

Developed Kafka-based event-driven backend systems handling traffic from 1M+ users and improved reliability via distributed caching and resilience patterns while collaborating with DevOps for scalable deployments.

Kafka Distributed Systems Caching Java Spring PostgreSQL Resilience

Project Engineer

Wipro Technologies

Jul 2021 - Jan 2022 (6 months)

Built backend modules for BFSI clients using Java and Oracle SQL, enforced secure coding through OWASP practices and peer reviews, and received recognition for high-quality backend delivery.

Java Oracle Backend Development OWASP Code Review Performance Optimization

Freelance Backend Developer

Freelance

Apr 2019 - Jun 2021 (2 years 2 months)

Delivered 10+ backend applications (ERP, e-commerce, SaaS) using modular Spring Boot architectures, led remote teams, and improved delivery cycles for startup clients.