The engineering team growing companies keep.
Leapstrat is an engineering company based in Kolkata, India. For ten years we have built custom software, products and AI systems for companies in the USA, Canada, the UK and Europe.
Give growing companies a senior engineering team they can trust with the product, without the cost and delay of building one from scratch.
Six habits behind 90% client retention
These are not posters on a wall. They are the things clients mention when they renew, and the things we check ourselves against at every retrospective.
Engineers on the call
Clients talk to the people doing the work from the first conversation. No account manager relaying messages.
Say no early
If the budget, timeline or approach will not get you where you need to go, we tell you before the contract, not after.
Write it down
Estimates, assumptions, decisions and weekly progress go in writing, so your stakeholders see exactly what we see.
Ship small, ship often
Short sprints and a demo at the end of each one. You always have something working to look at.
Your IP, your accounts
Code, repositories and cloud accounts belong to you from day one. Handover is a formality, not a negotiation.
Stay for the boring part
Fixes, performance and the next version after launch. Most of our clients have been with us for years.
AI speeds up the work. Our engineers own the result.
We use AI tools at every stage of a project to cut the repetitive work and shorten sprints. Every output is reviewed by a senior engineer before it reaches your codebase, your users or your report.
Discovery and scoping
AI summarises your documents, calls and existing code, and drafts user stories and a first estimate.
Design and prototyping
Clickable prototypes and UI variations in days, so you react to something real early.
Build
Code assistants handle boilerplate, tests and refactors, which frees engineers for the hard parts.
Testing and QA
Generated test cases, regression suites and automated checks run on every release.
Reporting and handover
Weekly progress notes, release notes and documentation are drafted from the actual work.
Meet the people you’ll work with
We are a close-knit team in Kolkata, led by our founders Animesh Roy and Shuvashish Saha. The people you meet on the first call are the people who build your product, and they stay with you from kickoff to launch and well beyond.

Animesh Roy
Organic Growth, Strategy, Branding, AI Search, GEO, Analytics & Measurement

Shuvashish Saha
Performance Marketing, Programmatic Strategy, B2B Growth, ABM, DTC, & SaaS

Uttam Kr Das
Business strategy, growth and long-term direction.

Mithu Bose
Accounting, Finance, Compliance & Administration

Sunita Roy
HR Operations, Recruitment, Payroll, Policy & Compliance

Prosanta Mitra
Gen AI, LLMs, RAG, Agentic AI, NLP, & Model Deployment

Bikash Hutait
WordPress, WooCommerce, Shopify, Themes & Plugins

Joy Chowdhury
PHP, Laravel, CodeIgniter, MySQL, Node.js, REST APIs

Akash Jathar
Python, Web Scraping & Data Parsing/ Extraction & APIs

Debashish Sen
API Testing, Postman, DB Testing, JIRA, Jenkins, Git

Amit Dey
React, Next.js, Redux, Tailwind CSS, GraphQL
Planning a project? Let’s talk it through.
A call with our team to go over your goals, timeline and budget. You will leave with a clear next step, whether or not we work together.
Trusted by teams across four regions
Media groups, consumer brands, healthcare providers and software companies, from first-time founders to listed businesses.












Kolkata, India
One office, one team. Every engineer on your project works from here, on shifts arranged around your time zone.
Engineering shifts run 09:00–23:00 IST, so your working day always overlaps with ours. Office hours for calls and visits are 10 am–8 pm IST, Monday to Friday.
Get directions →


Want to build for clients around the world?
We hire engineers, designers, QA and marketers who like owning their work. You will talk to clients directly, ship to production and learn from people who have done it for years.
See open rolesMeet the team before you commit
Thirty minutes with an engineer. We will look at the goal, suggest a team shape and send a written estimate within a working day.