ShubhamKumar
Senior Engineer II
Senior Engineer II with 8+ years of experience building scalable, high-availability backend systems across fintech and aviation domains. Specialized in cloud-native architecture, distributed systems, and microservices using Node.js, TypeScript, Haskell, and PureScript. Proven track record of optimizing system performance, reducing latency by up to 90%, and architecting mission-critical infrastructure serving millions of users.
Senior Engineer II
8+ years experience
As a seasoned software engineer, I excel in optimizing intricate systems, transforming payment applications, and elevating user experiences with inventive solutions. Let's collaborate to drive your projects forward.
Schedule a meetingAbout Me
Engineered for precision
A glimpse into the person behind the architecture.
8+
Years Experience
99.99%
Uptime SLA
90%
Latency Reduction
M+
Users Served
Senior Engineer II
Senior Engineer II with 8+ years of experience building scalable, high-availability backend systems across fintech and aviation domains. Specialized in cloud-native architecture, distributed systems, and microservices using Node.js, TypeScript, Haskell, and PureScript. Proven track record of optimizing system performance, reducing latency by up to 90%, and architecting mission-critical infrastructure serving millions of users.
Contact Details
Work History
Where I've shipped at scale
Senior Engineer II
- Designing System
Associate Lead Engineer
- Architected mission-critical LEO (Low Earth Orbit) connectivity system, collaborating across cross-functional teams to design scalable architecture enabling real-time, high-speed in-flight internet
- Spearheaded "Next Gen" hardware bring-up, modernizing software stack while preserving core system philosophies to ensure backward compatibility and future-proof performance
Senior Software Engineer
- Engineered high-availability backend services using Node.js and TypeScript, increasing captive portal launch success rates from 50% to over 75% for global airline passengers
- Optimized ADS-B event communication and satellite email accessibility, ensuring reliable data synchronization for offline-first embedded systems in low-connectivity environments
- Architected versatile remote sync service that streamlined content distribution across diverse aircraft platforms, significantly reducing manual deployment overhead
- Enhanced offline payment applications by integrating online verification capabilities when internet connectivity is available
- Improved email accessibility via satellite, playing pivotal role in project success
Software Developer
- Revamped CRED payment backend using PureScript and Haskell, achieving 90% reduction in payout latency by slashing processing time from 60 seconds to 6 seconds
- Enabled seamless credit card transactions by refactoring transaction flows and reducing processing time at all stages
- Implemented generic fulfillment system for various financial operations, ensuring streamlined and efficient processing
- Integrated complex multi-bank payout providers and Bill Payment services (HP Gas) for GooglePay, enabling seamless transaction flows for millions of active users
Tech Stack
Tools of the trade
The languages, frameworks, and platforms I rely on to build mission-critical systems.
Databases
Specializations
What I Do
Services I offer
From architecture to optimization — here's where I deliver the most value.
Software System Design & Optimization
Experienced in building and improving complex software systems to enhance performance and reliability.
Payment Systems & Fintech Solutions
Skilled in developing fast, secure payment backends and integrating with banks and payment providers.
Side Projects & Open Source
Creator of various tech tools and bots, contributing to open-source and automation projects.
Social Proof
What colleagues say
Feedback from the engineers and leaders I've had the privilege of working with.
I had the privilege of working with Shubham during our time at AirFi, and I can confidently say he is one of those rare professionals who consistently uplifts the entire team. Whenever support was needed, he was always the first to step in — dependable, proactive, and genuinely i…
Director of Technology · Sep 2025
Yash Anand
Director of Technology
I had the privilege of working with Shubham during our time at AirFi, and I can confidently say he is one of those rare professionals who consistently uplifts the entire team. Whenever support was needed, he was always the first to step in — dependable, proactive, and genuinely invested in team success. What sets him apart is his inquisitive nature and constant drive for new challenges. For him, routine is never enough; he thrives in dynamic environments where he can explore, learn, and contribute beyond expectations. This is evident in his strong and versatile technical skill set, which spans a vast subset. He has a natural ability to quickly grasp new technologies and apply them effectively, often becoming the go-to person for guidance. Beyond his technical acumen, Shubham embodies the qualities of a true team player. He brings enthusiasm, positivity, and humility to every interaction. Whether it’s high-level design work or routine tasks, he never says no and gives his best with the same zeal. His willingness to handle even the so-called 'grunt work' reflects not only his dedication but also his understanding of what it takes to deliver as a team. In addition, he demonstrates strong problem-solving skills, excellent collaboration, and adaptability under pressure. He is dependable, detail-oriented, and has the rare quality of combining technical brilliance with a people-first mindset. Any team would be fortunate to have him — not just as a developer, but as someone who can help build a positive, collaborative, and high-performance culture. I wholeheartedly recommend Shubham and am confident that he will excel in any role or challenge he chooses to take on.
Rohit Malaviya
Vice President - Technology
I can confidently say that Shubham is one of the most self-motivated developers I've encountered. He consistently demonstrates a remarkable ability to identify and solve problems independently. Shubham's innovative mindset and technical expertise make him a standout in any team. His proactive approach has led to several creative solutions that have streamlined our processes and improved overall project outcomes. Additionally, Shubham is a great collaborator; he communicates complex ideas clearly and is always willing to share insights with the team, fostering a culture of learning and growth. If you're looking for a developer who is not only a top-notch problem solver but also a forward-thinking innovator, Shubham is the one. He has brought tremendous value to every project or team he has been a part of.
Aatif Shaikh
Javascript Developer
He is highly skilled developer, I really admire how quick he is with the solutions to even most complex problems. If it's up to me I would love to take him to my team any day.
Taral Shah
Lead Product Manager
Shubham is a rare talent that everyone would want to work with. His knowledge about system, ethical hacking, AWS, payouts has been tremendous. Worked with him for good 2 years at Juspay. He single handedly handled the tech front for one of the core products. Starting from product roadmap discussions to asking right questions and coming up with precise solution to getting it implemented. Shubham has done all. Shubham will be an asset to any team he work with.
Praveen S
Senior Software Engineer
Shubham is an excellent mind that I have ever seen. His thoughts were way ahead of everyone else. I have seen sheer talent and dedication towards any task that he takes up. His skills in ethical hacking and CTF are exceptional.
Alister Cabral
Senior Software Engineer
Shubham is extremely smart and bright individual. His knowledge and experience in Dev-ops, networking and payments system is an great asset. He is also a great colleague and goes over and above in helping everyone in the team.
Credentials
Certifications
Formal credentials that complement practical experience.
Get In Touch
Let's build something
Whether it's a new project, a technical challenge, or just a chat — I'm always open to connecting.
Ready to collaborate?
As a seasoned software engineer, I excel in optimizing intricate systems, transforming payment applications, and elevating user experiences with inventive solutions. Let's collaborate to drive your projects forward.