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Custom Software & SaaS

A dedicated engineering team, without the hiring overhead.

Build a new SaaS product or extend your in-house team with senior engineers who work in your tools and your time zone. You get weekly demos, clean code and full IP ownership.

  • NDA before first call
  • IST + US overlap
  • You own 100% of the code
Custom Software & SaaS by Stream Quanta Tech
6 deliverables
What we deliver

Custom Software & SaaS services, end to end.

01

SaaS product engineering

Multi-tenant architecture, billing, auth and admin from MVP to scale.

02

Enterprise software

ERP, CRM and workflow systems built around how your business runs.

03

API development

REST and GraphQL APIs, integrations and partner platforms.

04

Dedicated teams

Developers, QA, DevOps and PMs who work only on your product.

05

Legacy modernisation

Refactor or rebuild old systems in modern, maintainable stacks.

06

QA & testing

Automated tests, load testing and security reviews before each release.

How we work

A predictable process, sprint after sprint.

  1. 01

    Discover

    A free call to understand goals, users and constraints. You get a written scope, timeline and fixed quote.

  2. 02

    Design

    Wireframes, architecture and a clickable prototype, so we agree on what we are building before we build it.

  3. 03

    Build

    Two-week sprints with a live demo at the end of each one. You see working software early and often.

  4. 04

    Launch & scale

    Tested release, monitoring and handover, then optional support, SEO and growth retainers.

Tech stack

Proven tools, used every day.

TypeScriptPythonGoJava.NETNode.jsDjangoFastAPIPostgreSQLRedisKafkaStripe
Bangalore

Custom Software & SaaS in Bangalore

Work with a local team in Bengaluru, with in-person workshops, GST invoicing and support in IST.

Our Bangalore team
United States

Custom Software & SaaS for US companies

A dedicated offshore team with daily overlap with US time zones, USD billing and US-friendly contracts.

Working with US clients
Testimonials

In our clients’ own words.

What teams say after shipping custom software & saas with us.

Stream Quanta rebuilt our loan origination portal in eleven weeks. Approval turnaround dropped from days to hours, and the AWS bill went down at the same time.
Arjun MehtaHead of Operations, Lendwise FinanceBengaluru
We moved three services to EKS with zero downtime. Their on-call team spots issues before our dashboards do.
Wei Lin TanEngineering Manager, Harbourline LogisticsSingapore
A senior team that ships every two weeks and owns the outcome. Our SaaS went from MVP to paying customers in one quarter.
Lucas PeetersFounder, BrightdeskAntwerp
Our courier app now handles live tracking, offline mode and proof of delivery. The backend and mobile teams worked as one unit.
Marcus LimCTO, ParcelgoSingapore
They rebuilt our ledger service and moved it to Kubernetes with Terraform. Deploys went from a monthly ordeal to several times a day.
Ethan WalkerVP Engineering, LedgerlySeattle, WA
FAQ

Custom Software & SaaS: common questions.

You do. All IP and source code transfer to you, and we work in your repositories from day one.

Planning a custom software & saas project? Let’s talk.

Tell us what you are building. We reply within one business day with next steps and a rough estimate.