Headline

Software Engineer @PhonePe | Prev: DataFlow Group (PSV) | Intello Labs (Agritech) | Coding Blocks | Walnut

About

🚀 Software Engineer | Scalable Backend Systems | Competitive Programming Hello! I’m Pritam Kumar, a Software Engineer passionate about building robust, high-performance backend systems and delivering clean, maintainable architectures that scale. With experience in distributed workflows, AWS-based communication pipelines, search query optimization, and building services from scratch, I focus on engineering solutions that are resilient, extensible, and performance-driven. 🔧 What I Work On Designing LLDs and backend architecture to reduce latency and improve code extensibility. Implementing asynchronous, event-driven systems using AWS SQS, SES, and notification pipelines. Optimizing Elasticsearch and database queries for faster and more efficient data access. Driving code quality and unit testing culture across teams to increase reliability and maintainability. Writing clean, modular code aligned with long-term system scalability. 💻 Engineering Mindset With a strong DSA and algorithmic background (1500+ problems solved across platforms like LeetCode, Codeforces, CodeChef), I naturally approach system design with a performance-first and edge-case-aware mindset. 🎯 Principles I Follow Build for clarity — optimize for scale. Code should be easy to extend, not just easy to write. Consistency and reliability matter as much as innovation. 🤝 Let’s Connect I enjoy connecting with engineers, founders, and product builders to discuss system design, backend engineering, AWS, and performance optimization. 📩 Reach me at: pritamkumar12052001@gmail.com

Location

Bengaluru

AI stack

claude code

cursor

gemini

github copilot

glama

grok

Work experience

Software Engineer at PhonePe, Oct 2025 - Present · 11 mos, Bengaluru, Karnataka, India, • Joined PhonePe as a Software Engineer, focusing on backend development. • Transitioned static configurations to dynamic ones, enhancing system flexibility. • Integrated runtime configuration changes with the database, eliminating server restarts. • Collaborated with cross-functional teams to improve overall system performance.

Senior Software Engineer at DataFlow Group, Apr 2025 - Oct 2025 · 7 mos, Hybrid, Took ownership of improving code quality across services by driving unit testing adoption and establishing best practices, resulting in more reliable and maintainable code. Led performance optimization initiatives by refining Elasticsearch queries, significantly reducing search latency and enhancing user experience. Designed Low-Level Designs (LLDs) for multiple high-impact features, enabling cleaner abstraction, improved code extensibility, and better integration across internal systems. Mentored team members in writing modular, testable components and guided architectural decisions to align development efforts with long-term scalability goals. Proactively identified technical debt and improved code structure, boosting maintainability and system performance across core services.

Software Engineer at DataFlow Group, Jan 2024 - Apr 2025 · 1 yr 4 mos, On-site, Led seamless data synchronization between legacy and modern systems, building fallback strategies to maintain data accuracy and system resilience. Built high-performance Payment and Notification Service from scratch, enhancing system scalability and maintainability across business domains. Integrated AWS SQS to enable reliable distributed communication and automated document attachment workflows within the notification service. Engineered full INFOBIP integration for SMS and email communication, with AWS SES configured as an intelligent fallback, ensuring uninterrupted notification delivery across platforms. Implemented the backend workflow engine for an operational validation product, optimizing multi-stage processes including validation, verification, QC, and report generation significantly improving throughput and operational efficiency.

Software Engineer at Intello Labs, Jan 2023 - Jan 2024 · 1 yr 1 mo, Gurugram, Haryana, India, As a Software Engineer based in Gurgaon, I've had the privilege of working on innovative projects that have made a significant impact on our software and user experience. My key accomplishments include: Canvas Feature Development: I was responsible for introducing a dynamic canvas feature, allowing users to perform contour drawings on images based on commodity defects. This feature also includes zoom-in and zoom-out functionality and a resize button for enhanced visualization. This transformation turned a static page into a dynamic one, while also leading to substantial savings, approximately 350TB, in our AWS Database. Tutorials Page Creation: I developed the tutorials page from the ground up, streamlining the process for administrators to upload tutorial videos and necessary information. These videos are stored on AWS S3 and presented to users in a user-friendly table format. I also addressed frontend alignment issues to enhance the user experience. ONNX Model and Excel Scraping: I worked on an ONNX model that accurately identifies image boundaries and tagged them with the help of points. Additionally, I implemented a feature for Excel scraping, further enhancing data accessibility and usability. API Development: In addition to the above, I had the opportunity to create multiple APIs, each serving unique functions to meet the diverse needs of our software and users. My work as a Software Engineer has involved innovative development, database optimization, and improved user experiences. I'm dedicated to pushing the boundaries of what technology can achieve and contributing to the success of our software and services.

Teaching Assistant at Coding Blocks, Nov 2022 - Apr 2023 · 6 mos, Remote, As a Teaching Assistant in Pitampura, I've had the privilege of working with Coding Blocks, where I play an essential role in shaping the next generation of programmers. My responsibilities include: Tutoring: I am dedicated to providing high-quality education to aspiring students. On weekends, I engage with students, teaching them coding and programming concepts. My approach is to make these complex topics more accessible and enjoyable for them, ensuring they have a solid foundation in programming. Programming Support: Beyond teaching, I'm always available to address any programming-related doubts or questions students may have. I offer guidance, clarification, and support to help them overcome challenges in their coding journey. In this role, I find great satisfaction in helping students gain the skills and knowledge they need to succeed in the world of programming. It's a rewarding experience to see them grow and develop their programming abilities.

BackEnd Developer at Walnut Health, Jun 2022 - Jul 2022 · 2 mos, Delhi, India, As a Backend Developer based in New Delhi, I played a crucial role in ensuring the success of our projects. My key responsibilities included: Documentation: I initiated the development process by focusing on documentation. I meticulously documented the controller code, providing detailed information about the variables and the type of data they store. Additionally, I described the functions associated with each API present in the controller, facilitating a smooth development process and making it easier for my team to understand and work with the code. Referral System: I had the opportunity to design and implement an innovative referral system. This involved creating algorithms and strategies to enhance our system's efficiency and user experience. The successful implementation of this system contributed to the growth and success of our projects. My role as a Backend Developer allowed me to combine technical expertise with effective documentation and creative problem-solving, ultimately driving the success of our projects.

Education

Bachelor of Technology - BTech, Computer Engineering, Delhi Technological University (Formerly DCE)

Public links

github: https://github.com/pritam825

leetcode: https://leetcode.com/man_of_learning

codeforces: https://codeforces.com/profile/just_you