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Hi, I'm Sundeep Rattan, a Senior Software Engineer with over 12 years of experience specializing in architecting, developing, and deploying large-scale enterprise and e-commerce applications. I love leading projects from start to finish, mentoring teams, and integrating cutting-edge AI and machine learning solutions into cloud-native environments. I'm proficient in Java, Python, and modern frameworks like Spring Boot and WebFlux. I also enjoy working with AWS, Azure, and GCP to optimize applications and enhance user experiences. When I'm not coding, you can find me exploring new AI techniques or helping small businesses grow their digital presence.…Hi, I'm Sundeep Rattan, a Senior Software Engineer with over 12 years of experience specializing in architecting, developing, and deploying large-scale enterprise and e-commerce applications. I love leading projects from start to finish, mentoring teams, and integrating cutting-edge AI and machine learning solutions into cloud-native environments. I'm proficient in Java, Python, and modern frameworks like Spring Boot and WebFlux. I also enjoy working with AWS, Azure, and GCP to optimize applications and enhance user experiences. When I'm not coding, you can find me exploring new AI techniques or helping small businesses grow their digital presence.

Sundeep Rattan

Programmer, Developer, Back-End Developer, +4

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Hi, I'm Sundeep Rattan, a Senior Software Engineer with over 12 years of experience specializing in architecting, developing, and deploying large-scale enterprise and e-commerce applications. I love leading projects from start to finish, mentoring teams, and integrating cutting-edge AI and machine learning solutions into cloud-native environments. I'm proficient in Java, Python, and modern frameworks like Spring Boot and WebFlux. I also enjoy working with AWS, Azure, and GCP to optimize applications and enhance user experiences. When I'm not coding, you can find me exploring new AI techniques or helping small businesses grow their digital presence.…Hi, I'm Sundeep Rattan, a Senior Software Engineer with over 12 years of experience specializing in architecting, developing, and deploying large-scale enterprise and e-commerce applications. I love leading projects from start to finish, mentoring teams, and integrating cutting-edge AI and machine learning solutions into cloud-native environments. I'm proficient in Java, Python, and modern frameworks like Spring Boot and WebFlux. I also enjoy working with AWS, Azure, and GCP to optimize applications and enhance user experiences. When I'm not coding, you can find me exploring new AI techniques or helping small businesses grow their digital presence.

Available to hire

Hi, I’m Sundeep Rattan, a Senior Software Engineer with over 12 years of experience specializing in architecting, developing, and deploying large-scale enterprise and e-commerce applications. I love leading projects from start to finish, mentoring teams, and integrating cutting-edge AI and machine learning solutions into cloud-native environments.

I’m proficient in Java, Python, and modern frameworks like Spring Boot and WebFlux. I also enjoy working with AWS, Azure, and GCP to optimize applications and enhance user experiences. When I’m not coding, you can find me exploring new AI techniques or helping small businesses grow their digital presence.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Javanese

Advanced

Work Experience

Sr. Software Engineer / Hands-on Architect at SamsClub Ltd.

September 1, 2020 - June 17, 2024

Designed and implemented the Edit Order functionality for the SamsClub website using Spring Reactive, delivering robust back-end processing and seamless integration with cross-functional teams. Developed high-quality, maintainable REST APIs with Spring Reactive, incorporating comprehensive testing and streamlined deployments via CD/CI pipelines on Microsoft Azure. Collaborated with business teams and technical leads to analyze requirements, brainstorm designs, and leverage parallel processing capabilities for optimized back-end performance. Engineered real-time API monitoring by scripting for failure detection and utilizing Grafana alongside MS Azure logging metrics to maintain system reliability. Executed automated end-to-end testing using an in-house QA framework to ensure application integrity and operational efficiency. Troubleshot and resolved production issues using Java and Python, ensuring continuous system performance across pre-production and production environments.

Technology Architect at Apple Inc.

September 1, 2018 - April 30, 2020

Engineered back-end REST APIs for the Apple LMS application, facilitating integration with iPad and front-end systems to automate content management processes. Developed and optimized Java code to support distributed deployments on GCP Cloud Platform, enhancing application scalability and performance. Collaborated with cross-functional teams to refine technical specifications and integrate internationalization and localization enhancements. Coordinated with Apple and third-party teams to resolve dependency challenges and ensure smooth performance amid increasing site traffic. Troubleshot and resolved issues in both production and pre-production environments to uphold a high standard of application reliability.

Sr. Software Engineer at Self-Employed (Freelance)

September 1, 2022 - Present

Designed, developed and deployed static and transactional e-commerce websites for small businesses to enhance their digital presence and increase revenue. Implemented AI/ML integrations including LLMs, ChatBots, and AI Agents. Utilized Java, SpringBoot WebFlux, Python, Express, FastAPI, MS Azure, MySQL, Redis, CosmosDB, Microservices, Kubernetes, and monitoring tools like Grafana, Prometheus, and Splunk.

Sr. Software Engineer at SamsClub (via Akraya Inc.)

August 31, 2022 - July 18, 2025

Architected and implemented the Edit Order module for Cart & Checkout using Spring WebFlux and Azure DevOps pipelines. Integrated AI/ML features with LLMs to create AI Agents and chatbots improving user experience and automating conversation rates. Developed RAG models for product recommendation which increased business revenue. Led cross-functional collaboration with front-end, QA, and SRE teams. Built real-time production monitors using Grafana, Prometheus, and KQL.

Technology Architect at Apple Inc. (via Infosys Ltd.)

April 30, 2020 - July 18, 2025

Led backend development for Apple LMS, automating localization and content upload. Delivered scalable APIs for iPad clients in collaboration with React front-end teams. Deployed solutions on GCP with CI/CD automation and managed system enhancements.

Sr. Software Engineer at TAIS Tech LLC

August 31, 2018 - July 18, 2025

Delivered enhancements for AT&T B2B and Walmart ATG Commerce refresh projects. Implemented responsive designs and e-commerce flows across enterprise portals.