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SARJAK CHAWDA_
SDE III · BACKEND ENGINEER
> Software engineer, amateur astronomer.
> Mumbai, India · 7 years exp.
1ABOUT

I am a software engineer with a passion for astronomy. Seven years of professional experience across growth-engineering, retail, and enterprise SaaS. I own architecture, systems, and teams end-to-end.

I have grown up tinkering with computers and gadgets. I am also an amateur astronomer and run a small astronomy club. These days, I am mostly working on tinkering with frontier models and working on AI.

CURRENTHighLevel · SDE III
LOCATIONMumbai, India
EXPERIENCE7 years
FOCUSBackend · Infra · AI
STATUSWORKING ON FRONTIER MODELS
2EXPERIENCE
HighLevel SDE III OCT 2025 – PRESENT
Full-time · Remote
  • Calendars team — building AI-powered agentic systems.
BelleVie SDE III FEB 2024 – JUN 2025
Full-time · Mumbai · On-site
  • Managed entire infrastructure — AWS, OpenSearch, MongoDB Atlas, Redis.
  • Reduced p99 latencies on business-critical flows to sub 50ms.
  • Solely designed and implemented security controls to achieve PCI-DSS and ISO certifications.
  • Overhauled architecture to support 50% higher throughput on Notifications and Visitor Management System.
  • Migrated x86 → ARM, reducing infra costs by 30%.
  • Led and mentored a team of software engineers.
Mosaic Wellness Growth Engineer OCT 2021 – DEC 2023
Full-time · Mumbai · On-site
  • Built habit trackers across three consumer brands — onboarded 500K+ users.
  • Led an AI-powered doctor–patient call transcription system in 2021.
  • Built a GenAI storybook platform for personalized children's bedtime stories.
  • Engineered scalable contests with live leaderboards and automated prize distribution.
  • Integrated CRED payments, Google Fit, LikeMinds, and OpenAI. Built consultation and instant appointment booking.
Accenture Associate Software Engineer JAN 2020 – OCT 2021
Full-time · Mumbai · On-site
  • Large-scale distributed retail POS for Dixons Carphone, UK & Ireland.
  • Cross-functional teams across two timezones. AppDynamics monitoring during peak cycles.
  • Wrote automation scripts to eliminate BAU manual tasks.
3AI WORK

Building with AI since 2021 — before GPT-4, before the hype.

AGENTIC SYSTEMS

Building AI-powered agentic workflows for scheduling, calendar management, and autonomous task execution on production systems.

MEDICAL CALL TRANSCRIPTION · 2021

Led a team building an AI system to transcribe and structure doctor–patient calls. Applied speech-to-text and NLP to extract clinical insights from unstructured audio — before this was a solved problem.

GENERATIVE AI STORYBOOK PLATFORM

Platform where parents generate personalised bedtime stories for their children. Handled prompt design, content moderation, and a backend that made generation feel instant.

NLP RESEARCH

Published research on clickbait detection using text classification. Early work that informs how I think about content quality and automated moderation pipelines.

4SKILLS
BACKEND
  • Go
  • Node.js
  • Rust
  • PostgreSQL
  • Qdrant
  • ClickHouse
INFRA
  • AWS/GCP
  • Docker
  • OpenSearch
  • Kubernetes
  • Linux
  • Grafana
FRONTEND
  • React
  • Next.js
  • Vue
  • TypeScript
AI / ML
  • Post-training
  • Distillation
  • Evals
  • PyTorch
5CONTACT