Divyang Chauhan
SUMMARY
Backend & Applied AI Engineer with 5+ years building event-driven services, distributed systems and multi-tenant platforms. Built provider-neutral, tool-using agent systems with context isolation, executable verification, and reproducible evals. Led a 9-person team shipping security software for multinational banks. OSCP certified.
PROJECTS
Pramana: Multi-agent smart-contract vulnerability scanner
- Built provider-neutral finder, verifier and reporter agents with context isolation and executable PoC verification
- Built an eval harness covering 14 labeled vulnerabilities in 11 classes plus a patched negative control, with baselines, cost/latency tracking, CI and 294 offline tests
- Benchmarked the finder/verifier core across Claude, GPT, and Kimi; best runs found 13/14 labeled bugs with 0 confirmed false positives on the patched control
ClinchCV: Full-stack AI resume analysis and job targeting
- Built a full-stack AI product that parses resume PDFs and uses structured, rubric-based LLM evaluation to generate scoring, ATS checks, job-fit analysis, and contextual rewrites
- Enforced structured outputs with schema validation, retry-on-invalid, and model fallback; handles multi-column and table-based PDF layouts
PROFESSIONAL EXPERIENCE
Kleros, RemoteFeb 2024 – May 2026
Backend Engineer
- Decomposed a monolithic NestJS backend into independently scalable API and automation services; established the monorepo and migrated 57K+ blockchain events across databases with ~1 minute of downtime
- Architected a NestJS EVM event-ingestion service processing events across Ethereum, Gnosis, and Arbitrum for 23+ downstream consumers, including notification workflows serving 700+ active jurors
- Built multi-network automation for dispute progression and juror staking; used transaction simulation and batched calls to improve execution reliability and reduce gas usage
NST Cyber, RemoteJan 2023 – Feb 2024
Software Engineer Team Lead
- Led a cross-functional team of 9 building Assure v2, a multi-tenant vulnerability-triage and threat-surface management platform sold directly to multinational banks and white-labeled by cybersecurity resellers
- Built an AI-assisted APT attribution workflow using the OpenAI API to map threat-surface to threat actors
- Replatformed Assure from OutSystems, eliminating ~$200K/year in platform costs while enabling 3-level tenancy, data isolation modes, and white-labeling; authored ~70% of the backend and shipped in six months
- Wrote Terraform for Assure v2's core AWS infrastructure, reducing deployment time from ~2 hours to 10–15 minutes; introduced Cypress E2E tests, reducing full regression from hours to under 30 minutes
Software EngineerMar 2021 – Jan 2023
- Developed Tigress's Django REST Framework backend from scratch; designed a MySQL schema supporting 10M+ records and created a serializer abstraction that reduced new endpoint development time by 60%
- Eliminated distributed-task bottleneck in Tigress's scanning engine by architecting cross-instance Celery dispatch, reducing scan time by 75% and scaling the platform from 10 to 100 daily scans without infrastructure changes
CERTIFICATION & EDUCATION
Offensive Security Certified Professional, OffSec2017
IIT Bombay, coursework in B.Tech Metallurgical Engineering & Materials Science2016
SKILLS
AI Systems: OpenAI, Anthropic, agent orchestration, tool calling, structured outputs, context isolation, evals
Languages & Databases: Python, TypeScript, JavaScript, Solidity, SQL, PostgreSQL, MySQL, MongoDB
Frameworks: Node.js, NestJS, Django REST Framework, Pydantic, GraphQL, React, Next.js, viem, Foundry, Slither
Infrastructure & Messaging: AWS, Docker, Terraform, Celery, Kafka, RabbitMQ