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Rajath RRR
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Rajath R

@rajathr95

Lead Backend Engineer, 7+ yrs building 0→1 products with founders at 3 startups. Scaled Openigloo to 100K+ users; Python, Node.js, AWS.

India
Message

I’m a Lead Backend Engineer with 7+ years of experience building products from scratch alongside founders at three startups. I enjoy taking a product from an idea to launch, and then owning the systems as they grow.

At Openigloo, I architect and solely manage the backend and infrastructure for the NYC tenant reviews platform, NYC OpenData building reports and the leasing platform. I led the launch of the leasing platform with an internal CRM and an AI chatbot, and led a 2-person team building an ETL pipeline for property listings. As the platform grew from 1,000+ to 100,000+ users, I improved API performance with Redis caching, query optimization and async queues. I also consolidated multiple microservices into a unified monolith on my own in under two months using Claude, cutting infrastructure costs by 50%.

At Fancraze, I built core parts of the Matchday Challenges fantasy game, now one of the company’s main revenue sources, and led development of the FC5 and SETS fantasy games. At SurveySparrow, I built a Stripe billing service that boosted sales by 20%, and a generic import system used across the platform. I started my career at Cognizant building ETL systems with Python and Apache Airflow.

I’m especially interested in AI-assisted coding. I set up Openigloo’s AI-assisted codebase with Claude Code, with rules that keep generated code consistent and easy for the team to maintain. I’ve worked across B2B SaaS (SurveySparrow), fantasy sports (Fancraze) and real estate tech (Openigloo).

I’m looking for a senior or lead backend role at a remote-friendly startup where I can work closely with founders and own systems end to end. My core stack is Python, Node.js/TypeScript, PostgreSQL, MongoDB, Redis and AWS.

Experience

Work history, roles, and key accomplishments

Openigloo Inc. logoOI
Current

Lead Backend Engineer

Openigloo Inc.

Oct 2024 - Present (2 years 1 month)

Solely own the backend and infrastructure for NYC tenant reviews, building reports and leasing. Launched the leasing platform with an internal CRM and AI chatbot that automated tour bookings. Scaled from 1,000+ to 100,000+ users. Merged microservices into a monolith alone in under 2 months using Claude, cutting infra costs 50%. Set up the team's AI-assisted codebase (LLM rules, MCP).

Fancraze Technologies logoFT

Senior Backend Engineer

Fancraze Technologies

Jun 2022 - Jun 2024 (2 years)

Built backend services with the founding team for the collectibles Marketplace and fantasy games. Developed core parts of Matchday Challenges, now one of the company's main revenue generators. Led development of the FC5 (NBA Topshot) and SETS fantasy games and managed a team of engineers. Built a generic notification service and the API gateway layer.

SurveySparrow Inc. logoSI

Fullstack/Backend Engineer

SurveySparrow Inc.

Sep 2019 - Feb 2022 (2 years 5 months)

Designed and built a pluggable Stripe billing service used across multiple products. It let the sales team create and adjust subscription plans on their own, boosting sales by 20% with zero downtime and no engineering overhead. Built a generic import system for contacts and survey responses, which helped customers migrate from other platforms. Added route-level Redis caching.

Cognizant Technology Solutions logoCS

Software Engineer

Jan 2018 - May 2019 (1 year 4 months)

Built the ETL system for AlinIQ, Abbott's informatics platform that analyzes and monitors lab data to uncover insights that improve laboratory performance. Contributed to the design, development and optimization of the ETL data warehouse storing patient diagnostic data from Abbott's labs and hospitals. Built with Python, Flask and Apache Airflow.

Education

Degrees, certifications, and relevant coursework

Amrita University logoAU

Amrita University

Bachelor of Technology, Computer Science and Engineering

2013 - 2017

Grade: 8.33

Activities and societies: Free and Open Source Software Member

Bachelor of Technology in Computer Science and Engineering from 2013 to 2017.

Central Board of Secondary Education logoCE

Central Board of Secondary Education

Class XII, Mathematics and Computer Science

2011 - 2013

Grade: 9.4

Activities and societies: Student Body Council Member

Class XII in Mathematics and Computer Science from 2011 to 2013.

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