Software Engineering

Custom Software & SaaS Development

Production software, built to outlast the demo

We design and build custom software, SaaS products, and web applications that hold up in year two — not just at launch.

Our approach

How we think about software

Most software dies in maintenance, not at the first release. We optimize for the second year: clear boundaries, typed contracts, tests where they earn their keep, and code the next engineer can actually read.

We ship in thin vertical slices behind CI/CD from day one, so you see working software early and we catch integration problems while they are still cheap to fix.

Architecture follows the product, not a résumé. We reach for boring, proven tools — Postgres, a typed backend, a server-rendered frontend — and add complexity only when the problem genuinely demands it.

In depth

What each capability actually involves

Custom Software Development

Custom software earns its cost when off-the-shelf tooling forces your team to work around it — the spreadsheet that runs operations, the CRM nobody trusts, the approval flow living in email. We build the system that replaces those, starting from how the work actually happens rather than from a feature list. That usually means a typed backend over PostgreSQL, a server-rendered interface your staff can learn in an afternoon, and integrations into whatever you already run. We scope the first release to the workflow causing the most pain, ship it, and grow from there — so the tool proves itself before the budget is spent.

  • Internal tools and operations dashboards
  • Customer-facing web applications
  • Workflow, approval, and back-office systems
  • API design and third-party integrations
  • Legacy system replacement without a big-bang rewrite

SaaS Development

A SaaS product is mostly the parts nobody demos: tenant isolation, roles, billing that matches real usage, and an audit trail you can show a security reviewer. We build those early, because retrofitting multi-tenancy into a single-tenant product is one of the most expensive mistakes in this category. Isolation goes in at the database layer with PostgreSQL row-level security rather than a WHERE clause someone will forget. Billing is metered against actual consumption. Auth covers the enterprise path — SSO, SAML, granular RBAC — before the first enterprise deal is on the table, so procurement is a form to fill in rather than a quarter of engineering work.

  • Multi-tenant architecture with database-level isolation
  • Subscription and usage-based billing
  • SSO, SAML, and role-based access control
  • Admin, onboarding, and self-serve trial flows
  • Usage metering, quotas, and audit logging

Business Website Development

A business website has one job: make it obvious what you do, who it is for, and what happens next. We build multi-page sites — services, case studies, about, contact — on a server-rendered stack so pages arrive fast and are fully crawlable rather than assembled in the browser. Structure is planned around the searches your buyers actually run, with one page per intent instead of a dozen near-duplicates competing with each other. Schema markup, canonical URLs, sitemaps, and clean redirects are part of the build, not a later fix. You get a CMS or typed content files, so your team can publish without a deploy.

  • Information architecture planned around search intent
  • Server-rendered pages, crawlable and fast by default
  • Schema markup, canonicals, sitemaps, and redirects
  • CMS or typed content files your team can edit
  • Analytics, forms, and conversion tracking wired in

Ecommerce Development

In ecommerce, engineering quality shows up directly in revenue: every second of load time and every extra checkout step costs conversions. We build storefronts where catalogue and product pages are server-rendered and cacheable, and where checkout is the shortest path that still handles tax, shipping, and payment correctly. Indian payment rails — UPI, cards, netbanking, wallets — are wired in through the gateway that fits your volume, alongside international processors where you sell abroad. Inventory, order, and fulfilment integrations run against your existing systems. We instrument the funnel so drop-off is something you can see and fix, rather than guess at.

  • Server-rendered catalogue and product pages
  • Checkout tuned for conversion and correctness
  • UPI, card, netbanking, and international payment gateways
  • Inventory, order, and fulfilment integrations
  • Funnel instrumentation and Core Web Vitals budgets

Mobile App Development

Most products do not need two native codebases and the two teams that come with them. We build cross-platform apps in Flutter or React Native — one codebase, both stores — and drop to native modules only where the platform genuinely requires it. The choice between the two follows your existing team: React Native if your engineers already write TypeScript, Flutter where UI consistency and animation matter most. Offline behaviour, background sync, push notifications, and store release pipelines are treated as build work rather than afterthoughts, because they are what turns a working app into one people keep on their phone.

  • Flutter and React Native, iOS and Android from one codebase
  • Offline-first data and background sync
  • Push notifications and deep linking
  • App Store and Play Store release pipelines
  • Native modules where the platform requires them

Performance Optimization

Performance work starts with measurement, because the bottleneck is rarely where the team assumes it is. We profile against real user data rather than a lab score: what field Core Web Vitals say, which queries dominate database time, where the N+1s and unindexed scans are, and which third-party script is blocking the main thread. Then we fix in order of impact — caching and query plans before micro-optimisations, shipping less JavaScript before hand-tuning what remains. Infrastructure cost gets the same treatment, since over-provisioning is usually a symptom of an inefficiency rather than a capacity need. You get before-and-after numbers and the budgets to hold the gains.

  • Field Core Web Vitals — LCP, INP, and CLS
  • Database query profiling and indexing
  • Caching strategy and CDN configuration
  • JavaScript payload and render-blocking reduction
  • Infrastructure right-sizing and cost reduction

Maintenance & Support

Software that is not maintained does not stay still — it decays, as dependencies age out of support and small unpatched issues compound into an expensive rewrite. Our maintenance engagements keep runtimes and libraries current, apply security patches on a schedule, and keep an eye on error rates and performance so regressions surface before your users report them. Backups get tested rather than assumed. We work through a shared backlog with agreed response times, so you know what is being worked on and what it costs. This covers systems we built and systems we inherit — taking over someone else’s codebase is normal work for us, not an exception.

  • Dependency and runtime upgrades on a schedule
  • Security patching and vulnerability monitoring
  • Error, uptime, and performance monitoring
  • Tested backups and restore procedures
  • Agreed response times and a shared backlog
Why us

What you get that you would not from a typical agency

Senior engineers, not a resourcing layer

You work directly with the people writing the code. There is no account manager between you and the engineer who made the architectural call, and no junior team quietly inheriting the project after the pitch.

You own everything we build

Code, infrastructure-as-code, and documentation live in your accounts and repositories from day one. No proprietary framework, no per-seat platform fee, no cost to walking away.

Working software early, not status decks

CI/CD is in place before the first feature. You review running software in a real environment within weeks, which is also how integration problems get caught while they are still cheap.

We take over other people’s code

Inherited codebases are normal work here. We audit honestly, write down the debt we find, and keep shipping — a rewrite has to earn itself rather than being the default recommendation.

Where we work

Software development company in New Delhi, working across India

Drasken Labs Private Limited is an engineering firm based in New Delhi. We work with startups and established businesses across Delhi NCR — including Noida, Gurugram, and Faridabad — and with teams in Bengaluru, Mumbai, Pune, and Hyderabad who prefer an India-based partner in their own timezone.

Beyond India, we deliver for clients in the United States and the United Kingdom. Engagements run asynchronously by default: written updates, shared boards, and a scheduled overlap window for the calls that genuinely need one. Whether you are down the road in Delhi NCR or five timezones away, you get the same senior engineers and the same visibility into what is being built.

Our stack

Tools we trust

  • TypeScript across the stack
  • Next.js and React on the frontend
  • Node / NestJS APIs
  • PostgreSQL with typed query layers
  • Automated tests and CI on every pull request
  • Containerized, reproducible builds
How an engagement runs

From first call to running in production

01

Scope & architecture

We map the product goals, pick the simplest architecture that fits, and define the first shippable slice.

02

Build in slices

Working software lands behind CI/CD early and often — you review real features, not status decks.

03

Ship to production

Automated deploys, observability, and security controls go in as we build, not as an afterthought.

04

Harden & hand off

Tests, docs, and runbooks so your team can own the code with confidence — or we keep operating it.

Tech stack

The software engineering stack we work in

Proven, modern tools we reach for on this kind of work — chosen for the job, not the résumé.

Languages

  • TypeScript
  • JavaScript
  • Python
  • Go
  • SQL

Frontend

  • React
  • Next.js
  • Tailwind CSS

Mobile

  • Flutter
  • React Native
  • Native bridges
  • Push & IAP

Backend & APIs

  • Node.js
  • NestJS
  • REST
  • GraphQL
  • WebSockets

Databases & Data

  • PostgreSQL
  • MySQL
  • Redis
  • MongoDB
  • Elasticsearch

AI / ML

  • OpenAI & Anthropic APIs
  • LangChain
  • pgvector
  • RAG pipelines

Scoped builds typically start around ₹24,999 and scale with team size and duration.

We scope every engagement to your needs — get a tailored proposal.

FAQ

Common questions

Can you take over an existing codebase?

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Yes. We onboard to existing code, audit it honestly, document the technical debt we find, and continue development without a forced rewrite.

Do you build MVPs or only mature products?

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Both. We build pre-seed MVPs designed to evolve, and we scale existing products. The architecture is sized to the stage you are at.

What happens after launch?

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Project engagements include a 90-day support period. After that you can take full ownership, or we continue with a maintenance or managed engagement.

How much does custom software development cost in India?

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Scoped builds start around ₹24,999 and move with team size and duration rather than a fixed per-page rate. A small internal tool sits at the low end; a multi-tenant SaaS platform with billing and enterprise auth is a longer, larger engagement. We give a written scope and estimate before any work starts, so the number is not a surprise mid-project.

How long does it take to build a custom application?

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A focused MVP typically runs eight to twelve weeks; a larger platform runs in quarters. Because we ship in thin vertical slices behind CI/CD, you are reviewing working software within the first few weeks rather than waiting for a single delivery date at the end.

Who owns the code and the intellectual property?

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You do, in full. Source code, infrastructure definitions, and documentation are yours and live in your repositories and cloud accounts. There is no proprietary framework you have to keep paying us to maintain, and no lock-in that makes leaving expensive.

Do you work with teams outside India?

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Yes. We are based in New Delhi and work with clients across India, the United States, and the United Kingdom. Delivery runs asynchronously through written updates and shared boards, with a scheduled overlap window for calls.

Will we work with the engineers who wrote the code?

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Yes. You talk to the senior engineers building your system, not an account manager relaying messages. The same people who make the architectural decisions are the ones who explain them to you.

Have a software engineering challenge?

Tell us what you are building. You will hear back from a senior engineer within one business day.

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