Mohit Sinha

DevOps Engineer

Bengaluru, Karnataka, India4 yrs 11 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Lead engineer for high-traffic fintech backend systems.
Awarded Samsung Excellence Award for performance optimization.
Expert in microservices and distributed systems architecture.

Stackforce AI infers this person is a Fintech Backend Engineer with expertise in scalable systems and microservices architecture.

Contact

mohitsinha1994@gmail.com LinkedIn

Skills

Core Skills

JavaSpring BootBlockchainDistributed Systems

Other Skills

AWSAnalytical SkillsC (Programming Language)C++Computer ScienceCore JavaDPDKData StructuresDatabase SystemsDatabasesDesign PatternsDevice DriversDockerDocker ProductsEvent-driven

About

Lead Software Engineer at Samsung R&D, building large-scale fintech backend systems for Samsung Pay and Samsung Wallet, serving millions of users in India as well as globally. Expert in Java, Spring Boot, microservices architecture, and distributed systems, with hands-on experience designing high-throughput, low-latency backend services, payment workflows, partner integrations, and secure transaction systems and earning the Samsung Excellence Award. Strong background in system design, REST/gRPC APIs, event-driven architecture, and cloud-native deployments on AWS (Docker, Kubernetes, ECS). M.Tech (Computer Technology) from IIT Delhi, with interests aligned to fintech platforms, payments, high-availability systems, scalable backend infrastructure, and data-intensive distributed systems.

Experience

4 yrs 11 mos

Total Experience

2 yrs 5 mos

Average Tenure

3 yrs 11 mos

Current Experience

Samsung r&d institute india

2 roles

Lead Software Development Engineer (Java Backend)

Promoted

Dec 2023 – Present · 2 yrs 6 mos · On-site

I’m a Lead Software Engineer at Samsung R&D, working on Samsung Pay and Samsung Wallet, building mission-critical backend systems used by millions of users at scale.
Specialized in Java & Spring Boot, microservices, and distributed systems, with end-to-end ownership of high-traffic wallet services such as BillPay, Recharge, Add to Wallet, and Verify with Samsung Wallet. My work involves system design, partner integrations, and cloud-native deployments on AWS, with a strong focus on scalability, reliability, and performance.
Worked as a Lead Java backend engineer, across 4 microservices for Private Sharing mode in Quick Share, a secure media-sharing Samsung app with millions DAU, enabling read-only private data exchange with time-limited access.
Developed custom Spring Boot API Gateway, replacing existing AWS API Gateway service, saving thousands of cost per month.
Led testing, code quality improvement initiatives, CPU & memory profiling, increasing line coverage to 80%.
Fixing over 50+ critical security vulnerabilities and integrating tools like SonarQube to ensure compliance with industry standards.
Resolved issues pertaining to the Authentication API, Push Notifications and Partial File uploads among others.
Exposure: Java/JVM, J2EE, REST APIs, Spring Boot, AWS - API Gateway, S3, KMS, VPC, ECS, DynamoDB (NoSQL), MySQL, JWT, Distributed Systems, Microservices Architecture, Web Services, Databases, Design Patterns

JavaSpring Bootmicroservicesdistributed systemsREST APIsAWS+2

Senior Java Software Engineer

Jul 2022 – Dec 2023 · 1 yr 5 mos · On-site

Awarded the Samsung Excellence Award for significantly enhancing system performance, increasing Transactions Per Second from 25 to 1,000 TPS within two quarters, demonstrating expertise in system optimization and scalability.
Worked on Samsung’s proprietary Blockchain Platform.
Led deployment of a RAFT Consensus Algorithm based blockchain cluster, a distributed consensus protocol designed to manage a replicated log of data across multiple servers, ensuring consistency across distributed system.
Exposure: Blockchain, Distributed Systems, RAFT Consensus, Docker, Kubernetes, Jenkins, GitHub Actions, CI/CD

BlockchainDistributed SystemsRAFT ConsensusDockerKubernetesJenkins

Intel corporation

Cloud Software Development Engineer

Jul 2021 – Jul 2022 · 1 yr · India

Worked on virtio based emulation of a SmartNIC as a block or a network device. Virtio-blk/net enumeration involves PCIe TLP handling and virtualization via SmartNIC SoC. The architecture spans around a DPDK/SPDK based userspace library to enhance performance.
Worked on virtio-net Kernel driver development to enable other SmartNIC blocks to interface with front-end Xeon based host and perform DMA via the respective protocol engines using exposed APIs and VF/PF handlers under virtualised environment.

virtioDPDKSPDKKernel driver development