Subhendu Singh
@subhendusingh1
I build high-performance API systems and financial products from backend infrastructure to responsive user interfaces.
IndiaWhat I'm looking for
I've built high-performance API systems and scalable backend infrastructure across health diagnostics, SaaS email infrastructure, fintech, and D2C commerce. At Flockline, I architected an event-driven API system with Redis and BullMQ for real-time insights and complex telemetry side effects.
I built a JSONL-based generative UI protocol optimized for low-latency, high-frequency updates, reaching 1000 tok/s on Cerebras. I also implemented an end-to-end RAG pipeline using Milvus and Voyage AI to support multi-turn agent interactions with contextual memory.
As founder of Shootmail and co-founder/CTO of Autofy, I've shipped systems that processed 60k+ emails for 800+ users and supported 15,000 units per day at a $2M ARR business. My work includes AWS email infrastructure, real-time analytics, ERP, predictive inventory forecasting, and automated reverse logistics.
Earlier at Nucleus Software Exports, I developed secure internet banking modules and audit reporting for Standard Bank, South Africa. I also contribute to open source through svelte-polaris and prisma-to-drizzle, and was featured in Svelte's official newsletter for writing on RPC and SvelteKit.
Experience
Work history, roles, and key accomplishments
Senior Full Stack Engineer
Flockline
Jan 2026 - Present (7 months)
Architected a high-performance event-driven API system using Redis and BullMQ for real-time insights and telemetry. Implemented a custom JSONL-based protocol for generative UI and an end-to-end RAG pipeline with Milvus and Voyage AI.
Co-Founder & CTO
Autofy
Jan 2016 - Dec 2026 (10 years 11 months)
Led design and development of an internal ERP system for inventory processing, scaling to 15,000 units per day and $2M ARR. Developed predictive forecasting tools and a customer-facing warranty portal integrated with backend ERP.
Full Stack Engineer & Founder
Shootmail
Jan 2024 - Dec 2025 (1 year 11 months)
Developed a scalable email platform on AWS (SES, SQS, SNS) with real-time tracking, processing over 60k emails for 800+ users. Engineered a custom TypeScript compiler for JSON-to-HTML transformation and a time-series analytics engine using Tinybird.
Software Engineer
Nucleus Software Exports Ltd.
Jan 2014 - Dec 2016 (2 years 11 months)
Engineered internet banking modules for Standard Bank, South Africa, including corporate beneficiary management and secure bulk-upload processing. Developed a high-performance audit reporting module and collaborated with penetration testing to resolve security vulnerabilities.
Education
Degrees, certifications, and relevant coursework
B.Tech in Computer Science
Bachelor of Technology, Computer Science
Graduated with a B.Tech in Computer Science in 2014.
Master's in Marketing
Master's, Marketing
Pursued a Master's in Marketing.
Availability
Location
IndiaAuthorized to work in
Job categories
Skills
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