Rajesh Singh Kadyan
@rajeshsinghkadyan
Senior Backend Engineer specializing in Java, Spring Boot, microservices and cloud.
IndiaWhat I'm looking for
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
Senior Backend Engineer
Brillio Technologies
Jun 2023 - Present (3 years 1 month)
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.
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.
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.
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.
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.
Education
Degrees, certifications, and relevant coursework
Chandigarh University
Bachelor of Technology, Computer Science Engineering
2017 - 2021
Grade: 7.4/10
Completed a Bachelor of Technology in Computer Science Engineering with a CGPA of 7.4/10 in 2021.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Job categories
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