Subhayan Ghosh

Co-Founder

London, England, United Kingdom5 yrs 2 mos experience

Highly StableAI Enabled

Key Highlights

Built a SaaS from 0 to $1M ARR in 5 years.
Led end-to-end product development for 100k+ users.
Expert in agentic AI workflows and data pipelines.

Stackforce AI infers this person is a SaaS expert with a strong focus on AI-driven solutions and data engineering.

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Skills

Core Skills

Agentic Ai DevelopmentFull-stack DevelopmentProduct ManagementSaas Architecture

Other Skills

AI EvaluationAWS LambdaAlgorithmsAmazon Web Services (AWS)Artificial Intelligence (AI)Cascading Style Sheets (CSS)Data EngineeringDistributed SystemsFigma (Software)GitGooglingHTMLJavaScriptLangChainLangsmith

About

currently: building AI engine for excel - imagine cursor, but for professional services (audit, tax and advisory).previously: built airbtics (bootstrapped), a real-estate-market-intelligence saas as the founding engineer & tech lead from 0 to $1m ARR in 5 years.- lead end-to-end product development scaling it from MVP to 100k+ overall users (~2k daily active users).- built core multi-ota (airbnb, booking.com, etc) data infra to scrape 20M listings & 300M nightly datapoints weekly.- designed inference engines and algorithms for similarity scoring, density-aware clustering, and roi forecasting - powering both retail & institutional investor dashboards.strengths: founder mindset, high-scale data pipelines, saas architecture, distributed systems, olap/analytics optimization, product-engineering leadership, and more recently - agentic ai workflows.outside of work, you’ll find me exploring the city’s best coffee spots - one espresso at a time.

Experience

Ylookup

Founding Engineer

Jan 2026 – Present · 2 mos · Greater London, England, United Kingdom · On-site

Building agentic workflow engine for tax, audit, and advisory - Cursor for professional services.
Working across full-stack agentic AI infrastructure, eval, and forward-deployed product strategy.
Building end-to-end workflow systems: eval/test suites, scalable core infra, in-app integrations and forward-deployed strategy.

TypeScriptAmazon Web Services (AWS)Agentic AI DevelopmentFull-Stack Development

Airbtics

3 roles

Tech Lead & Founding Engineer

Mar 2023 – Jan 2026 · 2 yrs 10 mos

Owned all technical execution across product, data, and full-stack. Led a team of 3 engineers.
Scaled revenue to $1M+ ARR while being bootstrapped.
Scaled the platform to 2K+ daily active users.

Product ManagementData EngineeringSaaS Architecture

Founding Software Engineer

Jan 2021 – Mar 2023 · 2 yrs 2 mos

Solo-shipped the SaaS MVP, scaling revenue from 0 - 1 and took the company to profitability within 14 months.

MySQLAmazon Web Services (AWS)SaaS ArchitectureFull-Stack Development

Software Engineer Intern - Founding Team

Oct 2020 – Dec 2020 · 2 mos

Prototyped the initial Airbnb market-intelligence tool that secured the first paying customers.

MySQLAWS Lambda

Platform universal

Technical Lead

May 2020 – Oct 2020 · 5 mos · Dublin, County Dublin, Ireland · Remote

Volunteered as one of the first developers and worked towards developing the MVP from scratch.
Architected the MVP by leading a team of 8 interns and collaborating directly with the founder.
Drafted code documentation and internal tooling.
Designed the business model by collaborating with core stakeholders.