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Sushant Singh
From India 11:57 PM (GMT+05:30)
$30/hr or $60,000/yr

Active over a week ago


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Senior Backend Developer

AI-native engineer
Available for hire
Years of experience
3+ years
Experience level
Mid-level
Available for
Full-time, Contract
Download Resume / CV

I joined Deloitte's internal startup arm in 2023 knowing basic JavaScript and not much else. Eighteen months later I was the de facto backend lead on GPMS — a performance management platform we shipped from zero to production in 3 months (fastest 0-to-prod in our department's history), now serving 50,000+ employees across 6 business units.

The story I tell at dinner parties: two days before our biggest go-live, my manager left on a planned 2-week leave and handed me the keys. Daily 1-hour HR leadership cadence. A 4-person dev squad to keep shipping. 50+ production incidents in a fortnight. Hotfixes through full test stages in 2–3 hours. We came out clean. The HR business owner told my manager — half-joking — that I'd run the show better than he would have. A month later I won Best Individual Contributor across 50+ engineers and Best Team across 12, same year, same ceremony.

What makes me a little unusual: I grew up in a Mumbai slum, fought through tuberculosis in Class 12, still cleared JEE in the top 1%, and graduated #2 in my IIT Guwahati department. I learn fast, ship faster, and I don't need a hierarchy to tell me what good looks like. What I'm looking for: an early-stage startup (Series A–C), founding engineer or senior backend role. Small team, real equity, tight feedback loops, a product where the engineering bar is set by user need rather than approval hierarchy. Long term, I'm building my own company. This is step one.

Employment History

Senior Developer 2 at Deloitte 2023 - 2026
Deloitte — Disruption Office (Internal Product/Startup Arm) | Jun 2023 – Mar 2026 Senior Backend Developer (Jun 2024 – Mar 2026) · Product Developer (Jun 2023 – Jun 2024) Architected and shipped GPMS, the organization's unified talent platform, from zero to production in 3 months — fastest 0-to-prod in the department's history. Now serves 50,000+ users across 6 business units. Led end-to-end backend delivery for 5+ microservices on AWS (Node.js, ECS, Lambda, EventBridge, RDS, S3/CloudFront, Cognito) and designed a 100+ column normalized MySQL schema consolidating legacy SAP and Salesforce sources, retiring ~$400K/year in licensing and ops cost. Built modular Python ETL pipelines on ECS cron, reconciling 3M+ records across 10+ heterogeneous sources (on-prem DBs, REST APIs, SharePoint flat files) into MySQL with zero data loss. Hardened the platform for quarterly peak load (40K employees submitting reviews concurrently): cut p95 API latency by 80%, sustained 99.9% uptime, eliminated N+1 bottlenecks, tuned Lambda concurrency. Re-architected the mass email service into an event-driven microservice with batch processing and concurrent Lambda execution — slashed delivery time for 40K+ user campaigns by 83% (60 min → 10 min). Shipped two production LLM features: a feedback-writing AI assistant and a meeting-transcript-to-JIRA/Azure DevOps backlog generator, eliminating 500+ enterprise hours/week of manual ticket creation. Led a 4-person engineering squad through GPMS go-live, including a 2-week stretch running the project solo during peak load — resolved 50+ production incidents with 2–3 hour hotfix turnaround, ran daily HR-leadership cadence calls, kept feature velocity intact. Built the team's first automated CI/CD pipeline (Docker → ECR → ECS) — cut deployment time by 85% (~6 hrs/week saved) and unlocked 3x daily release velocity. Migrated authentication from Keycloak to AWS Cognito with Azure AD SSO and a 3-role RBAC system; delivered a multi-tenant licensing module used by 10+ brands. Conducted 100+ code reviews, fixed 100+ security vulnerabilities (SAST/DAST/VAPT/SCA via Fortify), triaged 500+ production incidents. Awards (2025): Move the Dot — Best Individual Contributor (across 50+ engineers) and Best Team (across 12 teams), awarded by the Chief Disruption Officer.

Education

Bachelor of Technology at Indian Institute of Technology Guwahati 2019 - 2023