Discovery sprint — refundable in full

We engineer the complex. Across every serious stack.

Built on 15+ years of senior engineering experience. We ship production-grade backend systems, web applications, and crypto platforms. AI is a tool in our hands — not a product we sell.

Start your project See what we build
SENIOR TEAM 15+ years of engineering experience
BASED IN MUMBAI Andheri East · Remote · Global
Scroll
Our position
AI-Accelerated. Engineer-Owned. Production-Ready.

We are senior engineers, not vibe coders. We don't generate apps blindly by prompting a chatbot until something runs. We use AI tools & coding agents to accelerate the work senior engineers already do well — scaffolding, refactoring, test generation, review prep.

Every system we ship is architecturally sound, scalable, and production-ready. AI gets us there faster. It does not get us there cheaper on the things that matter: code quality, system design, security.

01  // Architecture & design reviews stay human-led.
02  // Every PR is read line-by-line by a senior engineer.
03  // Security, threat modelling and data privacy are non-negotiable.
04  // Faster timelines — same uncompromised quality bar.
Work / 01

Selected case studies.

A representative slice of what we've shipped. Client names withheld under NDA — happy to make warm introductions on a call.

01  —  Healthtech · Clinics Live in prod

Patient & clinician portal for standalone clinics.

End-to-end clinic operations: appointment booking, patient records, prescription & lab-report uploads, vitals trends graphed across visits, automated SMS & email reminders, billing and insurance reconciliation. Role-partitioned access for doctors, front-desk and lab staff — deployed clinic by clinic from a single multi-tenant codebase.

PHP · LaravelReactPostgreSQLRedisTwilioAWS
12+
Clinics deployed
30k+
Patient records
99.9%
Uptime
02  —  Healthtech · Consumer Live in prod

Vitals tracking with AI summaries and trend forecasting.

A whole-family vitals app: blood pressure, glucose, heart rate, SpO2, temperature and weight, captured manually or from connected devices. Automated anomaly alerts, AI-generated weekly health summaries, and a forecasting engine that flags drift before it becomes a clinical event. Family-member profiles, vaccination tracker, shareable doctor reports.

React NativeNode.jsTimescaleDBPythonAnthropic APIAWS
6+
Vitals tracked
7d
Forecast horizon
10+
Alert rules
03  —  Crypto · OTC desk Live in prod

Customized OTC desk for independent crypto traders.

A private OTC platform built for standalone traders in Mumbai. Per-user deposit addresses on BSC (BEP20) and Tron (TRC20), automated sweep from hot to cold custody on configurable thresholds, programmatic escrow with a multi-step release and dispute workflow, rich chat with deal-reference attachments, and a counterparty reputation system.

Laravel (PHP)ReactNode.jsMySQLRedisBSC · TronAWS
2
Chains supported
30+
Active traders
0
Custody incidents
04  —  Custom Backends · Internal Tools Live in prod

Custom CRMs, ERPs and internal-ops backends.

Sales CRMs. Custom ERPs. Vendor portals. The internal-ops tools one specific team uses every day — built around how that team actually works, not how a SaaS vendor wishes they did. Razorpay, Stripe and Cashfree wired in for payments. MSG91 and Twilio for SMS. Zoho and Tally for accounting. E-invoicing where the GST portal demands it. Boring on purpose. Auditable. Approved by the finance team on a Friday afternoon.

Laravel (PHP)ReactNode.jsMySQLRazorpay · StripeMSG91AWS
5+
Systems shipped
15+
Integrations wired
4+
Industries served
// Logos and client identities available on request — we honour every NDA.
About / 02

01.15+ years of scar tissue. Zero shortcuts.

Larissa InfoTech is a senior engineering studio. The founding team has 15+ years of shipping production systems for banks, exchanges, hospitals, logistics networks and high-growth SaaS — the kind of software where downtime is measured in dollars per second. The company is new. The experience behind it isn't.

We build across every major stack: Python, Go, PHP, Node.js, React, PostgreSQL, MongoDB, Redis, AWS, Docker. Every engagement is led by an architect who's been in the trenches — no juniors hidden behind glossy decks, no patterns copy-pasted from yesterday's blog post.

We are not an AI company. We use AI as a development tool — codegen, refactors, test scaffolding, review assistance — to compress timelines without compromising on architecture, security, or code quality. The judgment stays human. The taste stays human.

We pick clients carefully. We work on one project at a time and say no to anything we can't make excellent. And we ship things you can be proud of for years — not the next funding round.

By design

Deliberately small.

100+ engineers
A handful, all senior
Dedicated QA pool
Engineers who own quality
Parallel projects
One project at a time
PM forwarding tickets
Architect on every call
× We don't take on: staff-augmentation-only engagements, sub-two-week prototypes for unfunded ideas, or pure DApps with no off-chain logic. We'll happily refer you to someone better.
// Philosophy  —  Build like it has to last. Because it does.
Why it matters / 03

Software is easy to start. Hard to keep alive.

The tooling has never been louder or quicker. A working application can now be generated in an afternoon by someone who has never shipped one before. But the gap between “it runs on a laptop” and software that survives real users, real data, real attackers and real regulators has not moved an inch — and that gap is closed by experience, not enthusiasm.

The shortcut path High risk
  • Generated from a prompt. Lightly tested, never broken on purpose.
  • Works in the demo. Buckles the first time real load arrives.
  • No migrations, backups, monitoring or runbooks.
  • Hard-coded secrets. Over-permissive auth. Schemas that paint you into a corner.
  • 3–5× the original cost to put right when the first incident lands.
Symptom of the moment — cheap to start, expensive to live with.
The senior-engineering path What we ship
  • Architecture before code. Schema-first, threat-modelled, written down.
  • Designed for failure. Observed from the first deploy, not the first incident.
  • Migrations, backups, on-call rotation, runbooks — before launch, not after.
  • Every pull request walks past a senior engineer’s eyes. No exceptions.
  • Code the next team can read without cursing yours.
What you get from us, on every engagement — same speed, different ceiling.

We use the same AI tools — heavily, every day. They make us faster. They do not make us shallower. The judgment, the system design, the security review, the taste — those still come from fifteen years of building things and watching them break.

Services / 04

What we build, and how we build it.

Six practice areas, one team. Pick a card or send us the messy problem behind it — we'll tell you which applies.

01 / Flagship

Custom web
applications
built right.

Dashboards, admin tools, customer portals, multi-tenant SaaS. Type-safe end to end. Tested at the boundaries. Architected so the next team can move fast on it.

ReactNext.jsTypeScriptPostgreSQLRedis
02 / Crypto

Custodial crypto platforms

OTC desks, per-user deposit-address generation, automated hot/cold sweep flows, programmatic escrow with dispute resolution. Centralised crypto operations — hardened for production, not on-chain smart contracts.

BSC · TronCustodyOTC · Escrow
03 / Enterprise

Enterprise portals

SSO, RBAC, audit trails, the works. Built so legal doesn't lose sleep and your ops team actually uses it.

SAML · OIDCSOC2-aware
04 / Backend

API & backend systems

Event-driven services, durable queues, real-time pipelines. Boring on purpose. Bulletproof in practice.

Python · Go · NodePostgreSQL · Mongo
05 / Infra

Cloud deployment

IaC, observability, cost discipline. Your platform on AWS or GCP without the surprise October bill.

AWSDockerTerraform
06 / Velocity

Rapid prototyping — in days, not quarters.

Pitch-ready, click-through, real-data prototypes for founders, product teams, investor decks. Use them, then throw them away. Or don't — we build prototypes that can survive contact with users.

Figma → ReactLive data1 week sprints
Process / 05

How we move from idea to production.

A five-step rhythm sharpened across the founding team's careers. AI tooling shows up in step three — but the surrounding discipline is what makes it work.

Discovery to launch typically runs 7–14 weeks. Scale is optional and monthly.
STEP 01  ·  1–2 weeks

Discover

Two-week immersion. We sit with your team, audit the existing codebase if there is one, map the data, and write the smallest possible spec that will not lie to us in week six.

STEP 02  ·  1–2 weeks

Architect

The boring document that prevents the expensive mistakes. Schemas, system diagrams, failure modes, deploy topology, observability strategy. Reviewed with your stakeholders before a single line of production code is written.

STEP 03  ·  4–10 weeks

Build AI-Accelerated

We ship measurably faster than the old way. AI handles scaffolds, refactors, test coverage and review prep — but every PR walks through a senior engineer's hands before it lands. Speed without cutting corners on architecture or security.

STEP 04  ·  1–2 weeks

Ship

Staged rollouts, feature flags, dashboards lit up, on-call rotation handed off cleanly. We don't celebrate at launch — we celebrate at week four with no incidents.

STEP 05  ·  Monthly · optional

Scale

Retainer or staff handoff. Performance tuning, cost optimization, capacity planning. We stay long enough to make ourselves un-needed.

Track record / 06

Numbers we'll happily
defend in a room.

These are the founding team's career figures, not the company's. Every stat below corresponds to a client, a contract, and an engineer we can put on a call with you.

15+
Years of senior experience
Collective expertise across the founding team. New entity, seasoned hands.
50+
Projects delivered
Across the founding team's careers. Enterprise, fintech, supply-chain finance, health, logistics, climate-tech.
100%
Senior full-stack only
No juniors hidden in the bill. Architects on every call.
4×
Avg. AI-accelerated speed-up
Measured against the founding team's pre-AI delivery cadence.
Field notes / 07

From the trenches.

Short writeups from production work — what we learned, what we'd do differently, what we wish we'd known earlier.

Engineering 4 min read

Why we don't mock the database in fintech tests.

A migration that passed CI and died in production. The five rules we've used since to keep integration tests honest.

12 May 2026 →
Practice 3 min read

Five questions we ask before we look at any code.

A 30-minute conversation that costs nothing and saves months. We've been refining this checklist for over a decade.

5 May 2026 →
Crypto 4 min read

What we learned building an OTC desk for traders who text at 3 a.m.

Five things the original spec missed. All of them surfaced in the first three months of real operations.

22 April 2026 →
FAQ / 08

The questions
we hear most.

Asked before the first call by almost everyone. Answered honestly here so we can spend the call on your actual problem.

How fast can you start?
Discovery sprints usually kick off two to three weeks after a signed SOW — we work on a small number of engagements at any time, so slots are scheduled, not improvised. Emergency or production-rescue work is triaged within 48 hours.
Will I work with the same engineers throughout?
Yes. The architect named in your SOW stays on through every phase from Discover to Scale. There are no juniors hidden in the bill, and you will never be passed to a delivery manager forwarding tickets.
Do you work on-site, or fully remote?
Remote-first. We're based in Mumbai but work asynchronously with clients across India, the EU, the UK and the US. Mumbai is our registered office — not somewhere your team needs to fly to. Our working hours cover IST natively, with overlap into EU mornings and US evenings. We travel for kick-offs or critical workshops only when the SOW provides for it.
Can you join my existing team, or only standalone projects?
Both. Standalone build-and-ship engagements are our default, but we also do embedded retainers where we sit inside your team and bring senior bandwidth. Embedded engagements run a minimum of three months.
What if I don't have a spec yet?
Most of our clients don't. That's exactly what the Discover phase is for: two weeks of immersion, code audits, data mapping, and the smallest possible written spec that won't lie to us in week six. Discovery is a fixed-price sprint — you can stop there if it isn't a fit.
Do you take on retainers after launch?
Yes. Most engagements end with a Scale phase: performance tuning, cost optimisation, on-call rotation, and a clean handoff to your in-house team. We stay long enough to make ourselves un-needed — not a day longer.
What if it's not a good fit?
We'll say so on the first call and refer you to someone better. We pick clients carefully because we want the work to be excellent — saying no early is part of that. No hard feelings, no follow-up pitch.
Billing / 09

How we bill,
and how you pay.

Honest milestones, predictable cashflow. Here's how we structure engagement fees — and the rails you can pay them on.

Engagement structure
Phase 01 Fixed price

Discovery.

1–2 weeks · upfront
100%
100%On signing
You walk away with a written spec, an architecture document, and a clear go / no-go. You can stop here if it isn't a fit — no obligation to continue into build.
Phase 02 Milestone-based

Build & ship.

6–12 weeks · Net 14 days
25%
25%
30%
20%
25%Kick-off (Architect phase)
25%Architecture sign-off
30%Staging delivery
20%Production launch
Every milestone has written acceptance criteria. Invoiced on milestone hit, not by calendar. The split can be tailored per engagement — the SOW always wins.
Phase 03 Optional · recurring

Scale.

Month-to-month · 30-day notice
Monthly retainer · or T&M
FlatMonthly retainer (fixed)
T&MTime-&-materials with quarterly cap
For performance tuning, capacity planning, on-call rotation and ongoing work. We stay long enough to make ourselves un-needed — not a day longer.
Currency INR · EUR · USD · GBP
Payment terms Net 14 days
Late fee 1.5% / month
Taxes GST · reverse-charge EU
Our pledge

Confidence, backed by structure.

We believe in what we build — and we structure every engagement so you can prove it before you commit further. Three protections you get by default, on every project:

01

Discovery is fully refundable.

If at the end of the Discovery sprint you don't want to continue — for any reason — the engagement ends and we refund the Discovery fee in full. You keep the deliverables either way.

02

Every milestone is acceptance-gated.

We invoice only after you sign off on a milestone in writing. If we miss the bar and can't fix it inside the agreed cure period, the engagement closes without final payment.

03

Bespoke terms agreed up-front.

Beyond Discovery, kill-fees and refund terms are written into your SOW — never improvised after the fact. We've signed enough flavors to know which work.

Rails accepted

Bank Transfer

NEFT  ·  RTGS  ·  IMPS

International Wire

SWIFT  ·  Multi-currency

Cryptocurrency

BTC  ·  ETH  ·  USDT (TRC20 / ERC20)

UPI

Domestic clients  ·  INR

// We work with clients globally. Crypto payments welcome.
Contact / 10

Let's build something exceptional.

Call or WhatsApp us. We respond fast — usually within the hour during Mumbai working times, and inside one business day everywhere else.

Direct line · Mumbai +91 97697 69729
Chat on WhatsApp Call now

→  info@larissainfotech.com  ·  Reply within 1 business day

What happens next
You message us
We reply within 24h
30-min call
Fixed-price Discovery
Registered office

Larissa InfoTech Pvt. Ltd.

302, Techno Park, Andheri East,
Mumbai – 400069,
Maharashtra, India