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Sachin Mour

@sachinmour

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CTO at Hexis, where I re-architected the platform and helped grow ARR by 300%+ while reaching product-market fit.

United Arab Emirates

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At Hexis, I lead engineering for a sports nutrition platform trusted by 40% of the Tour de France peloton and 50% of the Premier League. I re-architected its core data model, cutting multi-day range queries from several minutes to under 700ms, and helped build the product that delivered 300%+ ARR growth and product-market fit.

Through Toptal, I built an agentic RAG platform from scratch for financial due diligence, indexing 10M+ pages and scoring 100% on the Vectara RAG benchmark. I also led SOC 2 controls and GCP infrastructure for that engagement.

At Verizon Media / RYOT, I led a team building a web-based 3D modeling tool and built its backend and server-side asset-processing pipeline. Earlier, I worked on products at ISSUU and DanskeBank, including a web PDF reader and a financial platform used daily by business customers.

Experience

Work history, roles, and key accomplishments

Current

Chief Technology Officer

Current

Hexis

Jun 2024 - Present (2 years 4 months)

Joined as Senior Full Stack Engineer and progressed to CTO, leading a team of 5 engineers while writing production code. Instrumental in building a platform trusted by 40% of the Tour de France peloton and 50% of the Premier League, delivering a 300%+ increase in ARR.

TypeScript NodeJS GraphQL Apollo Prisma PostgreSQL Python React Native Kafka Redis Valkey Typesense Pulumi GCP Docker Grafana Supabase Clerk ChargeBee

Lead Software Engineer / Fractional CTO

Freelance Consulting via Toptal

Aug 2022 - Jun 2024 (1 year 10 months)

Provided fractional CTO and lead engineering services to multiple clients through Toptal, including an AI startup, a fashion retailer, a US healthcare company, and an AI virtual try-on platform. Built agentic RAG platforms, React Native apps, and HIPAA-compliant systems.

Lead Software Engineer

Verizon Media / RYOT (Yahoo)

Jul 2020 - Aug 2022 (2 years 1 month)

Led a team of 9 engineers building a web-based 3D modeling tool for content creators at NFL, HuffPost, and Yahoo. Designed backend microservices on AWS Lambda and Kubernetes, and built a server-side Blender pipeline for mesh decimation and texture compression.

TypeScript Go NodeJS NestJS Next.js React GraphQL PostgreSQL Prisma DynamoDB Neo4j Redis AWS Lambda SAM Kubernetes (EKS)Terraform Docker Python Blender

Software Engineer

NYC Outward Bound Schools

Jan 2016 - Dec 2020 (4 years 11 months)

Built a student-data dashboard using React, Node.js, and MongoDB that replaced a legacy system and saved $10,000+ per year. Recruited and led a small remote team of developers.

React NodeJS MongoDB

Senior Software Engineer

ISSUU

Jul 2019 - Jul 2020 (1 year)

Built the next-generation web PDF reader and worked on the OCaml backend serving 100M+ unique users monthly. Improved the machine-learning pipeline for article extraction and set coding standards.

JavaScript TypeScript NodeJS React Redux Ocaml Kotlin Java Python Protobuf D3.Js SQL RabbitMQ AWS Serverless Nginx Webpack

Senior Software Engineer

Danske Bank

Feb 2018 - Jul 2019 (1 year 5 months)

Built District, a cross-browser financial platform used daily by thousands of business customers, in a regulated environment with GDPR and PSD2 compliance. Implemented API microservices, automated tests, and GoCD pipelines.

JavaScript TypeScript React React Native Cycle.js Most.js RxJS NodeJS D3.Js Java SQL RabbitMQ Nginx GoCD Webpack

Software Engineer

K15t Software

Jan 2017 - Dec 2018 (1 year 11 months)

Worked on React/Redux frontend, AWS Lambda, and Node.js REST APIs. Gave tech talks and participated in hiring.

React Redux AWS Lambda NodeJS REST

Software Engineer

Brainbuild and Roomsie

Jan 2017 - Dec 2017 (11 months)

Developed a React Native mobile app with a push-notification server, a React web platform, developer tooling, and AWS Lambda APIs.

React Native React AWS Lambda NodeJS

Software Engineer

Saferide Health

Jan 2016 - Dec 2016 (11 months)

Built a notification system and customer-support chat for the dashboard, plus React Native app work.

React Native NodeJS

Freelance Software Engineer

Upwork

Jan 2011 - Dec 2016 (5 years 11 months)

One of the top freelancers in the stack on Upwork, working on web scraping, Electron apps, mobile, browser extensions, backends, and infrastructure in JavaScript, Ruby on Rails, Java, and C++.

JavaScript Ruby on Rails Java C++Web Scraping Electron Mobile Browser Extension