Headline

SDE 2 (Backend) @Dream11 || Ex-OneCard, Microsoft || Knight @LeetCode || IIT BHU’23

About

👨‍💻 About Me SDE 2 with 2 years of experience building scalable, low-latency systems in high-growth environments. Passionate about backend engineering, system design, and solving real-world problems through technology. Currently at Dream11 as an SDE 2, I work on the multi-tenant Offers Platform — owning critical APIs (handling 6.5M RPM, p95 ~6ms), leading schema and service design, and driving performance optimization via load testing tools like Torque (Gatling). Scaled services to handle 35M RPM in real-time match scenarios, reducing product go-live from 60 to 15 man-days and saving substantial engineering bandwidth. Previously at OneCard, I contributed to core banking simulators, transaction frameworks, and automations that enhanced system robustness and saved operational costs. During my Microsoft Engage internship, I delivered collaborative features for Android OneNote, working across ODSP services despite limited prior Android exposure. 💡 I thrive in fast-paced, collaborative environments where I can contribute to impactful systems, mentor others, and continuously grow in distributed systems, backend architecture, and cloud engineering. 🛠️ Tech Stack: Java, Vert.x, Kafka, DynamoDB, AWS, PostgreSQL, Hibernate, React.js 🏆 Knight on LeetCode, 4⭐ CodeChef, Top 100 – Microsoft Engage 📬 Open to 1:1 mentorships, mock interviews, and resume reviews (DM me or check out Topmate)

Location

Bengaluru

AI stack

claude code

cursor

notebooklm

openai

Granola

Work experience

SDE 2 at Tamara, Feb 2026 - Present · 6 mo, Remote

Software Development Engineer 2 at Dream11, Jul 2025 - Jan 2026 · 6 mo, Hybrid, -- Architected MySQL schema and team movement flow for Dream11's season-long multi-match fantasy format, enabling persistent squad management, variable cadence team edits (per-match, weekly, or none), and boosters — a greenfield product distinct from the traditional single-match model. -- Engineered APIs for real-time points distribution across concurrent live matches in a tournament, maintaining p99 < 25ms; used Spark to bootstrap leaderboards live within 1 minute of match lock with transfer windows opening within 15s.

Software Development Engineer 1 at Dream11, Oct 2024 - Jul 2025 · 10 mos, On-site, • Service owner of the multi-tenant Offers Platform, architecting offer logic abstraction to reduce go-live effort from 60 to 15 man-days. Maintained 99.99%+ uptime during IPL/World Cup seasons serving 6.5M+ RPM (p99 12ms) using Vert.x, DynamoDB, and Kafka. • Led DynamoDB schema design evaluating alternatives (Aerospike), architecting partition strategies with cost-performance analysis, achieving 60% cost reduction (measured vs similar production services) while maintaining low latency and efficient queries. • Spearheaded service optimization via Gatling-based load testing (Torque), scaling from single-instance benchmarks to 35M RPM simulating real-time match flow, improving system throughput by 40%. • Improved service observability by implementing comprehensive monitoring dashboards and alert optimization using Datadog, reducing false alerts by 20% and incident resolution time by 40% through refined thresholds and actionable metrics.

Software Engineer at FPL Technologies, Jun 2023 - Sep 2024 · 1 yr 4 mos, Pune District, Maharashtra, India, • Architected a configurable transaction posting engine for off-network financial operations (fees, interest, EMI, etc) via double-entry accounting with multi-account Transactions, saving developers bandwidth and implementations effort by 40%. • Built a CSV-driven ISO-8583 testing framework (Java, JPOS) with configurable transaction generation for VISA and MasterCard networks (MCC, forex, merchant), eliminating production testing and enabling comprehensive UAT validation. • Architected card tokenization for merchant payments using factory and strategy patterns (Juspay), enabling users to save OneCard cards on merchant apps via OTP verification with plug-and-play PG integration. • Developed Core-Simulator (Java, ReactJS, Docker) for testing credit card lifecycle workflows (transactions, accruals, billing), replacing manual Postman testing and reducing costs by 25% and delivery time by 40%.

SWE Intern at Microsoft, May 2022 - Jul 2022 · 3 mos, Hyderabad, Telangana, India, Part of Microsoft Onenote, Android Team under E+D Org. Worked on Notebook sharing functionality enabling the real time collaboration providing experience similar to google docs/ slides for the org based accounts.

Education

Bachelor of Technology - BTech, Mechanical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi

Resonance Eduventures Limited

Public links

github: https://github.com/dev-it-aman

leetcode: https://leetcode.com/devil_gangsterr

amansingh1906.netlify.app: https://amansingh1906.netlify.app/