Muttashim Sarkar

Senior Software Engineer

Hyderabad, Telangana, India5 yrs 9 mos experience

Highly Stable

Key Highlights

Designed a multi-tenant GraphQL data aggregator at Amazon.
Achieved a 70% reduction in latency for high-traffic systems.
Passionate about backend architecture and system performance.

Stackforce AI infers this person is a Backend-heavy Fullstack Engineer with expertise in SaaS and Fintech.

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Skills

Core Skills

JavascriptWeb ApplicationsGraphqlSoftware Development

Other Skills

TypeScriptData StructuresContinuous Integration and Continuous Delivery (CI/CD)MicroservicesJava ConcurrencyDistributed SystemsMultithreadingCore JavaSpring BootCode ReviewObject Oriented DesignObject-oriented LanguagesApplication Programming Interfaces (API)ProgrammingJava Development

About

I’m a Software Engineer with over 5 years of experience building scalable backend systems at Amazon, currently working as an SDE 2. I've led the design and development of systems handling high traffic and large datasets — including a multi-tenant GraphQL data aggregator (5M+ req/day), traffic shaping for noisy clients (110M+ req/day), and a real-time notification data warehouse (25M+ records/day). I’ve also driven performance and cost improvements, such as reducing latency by 70% and improving resource utilization from ~50% to over 90%. My core stack includes Java, Spring, GraphQL, JavaScript/TypeScript, and AWS. I'm passionate about backend architecture, system performance, developer experience, and end-to-end ownership. Notable projects: – Multi-tenant GraphQL aggregator with federated schemas and OTA updates – Shareable transaction image generation from HTML views – Streaming data warehouse for real-time and batch analytics – Federated widget deployment framework for micro-frontend platform 📬 Open to opportunities in senior software engineering roles.

Experience

5 yrs 9 mos

Total Experience

5 yrs 6 mos

Average Tenure

3 mos

Current Experience

Microsoft

Senior Software Engineer

Feb 2026 – Present · 3 mos · Hyderabad, Telangana, India

Amazon

3 roles

Sde 2

Promoted

Oct 2022 – Feb 2026 · 3 yrs 4 mos

Designed and launched a multi-tenant GraphQL data aggregator, enhancing data accessibility and performance.
Implemented traffic shaping and throttling on a BFF service, managing over 110M requests per day and reducing latency spikes.
Developed a shareable transaction image feature for Amazon Pay, standardizing design across multiple use cases.
Achieved a 50-70% reduction in frontend latency through CDN integration and cache optimization.

JavaScriptWeb Applications

Software Development Engineer

Aug 2020 – Oct 2022 · 2 yrs 2 mos

Designed and implemented a string localization and OTA string delivery system for Amazon Pay's rendering platform.
Developed a JavaScript/TypeScript SDK to facilitate widget rendering for client teams.
Created a real-time data warehouse capable of processing over 25 million records daily for notification analytics.
Enhanced user experience by adding validation and retry mechanisms in a 3-tier orchestrator service.
Collaborated with analysts to build leadership-facing dashboards for notifications.

JavaScriptWeb Applications

SDE Intern

Jan 2020 – Jul 2020 · 6 mos

Successfully migrated 19+ business models from a legacy monolith to a new data aggregator, enhancing the policy engine's efficiency.
Conducted an in-depth analysis of a large Java codebase, transforming document-style business logic into reusable services.

Software DevelopmentData Structures