Custom software development
Tankar designs and builds custom software for companies that have outgrown spreadsheets, email approvals and off-the-shelf tools. Each engagement starts with a scoped call and a written estimate within 48 hours, runs in sprints with a weekly demo, and ends with a supported release. The code lives in your repository from week one.

What we build
Custom software is the right choice when the process is yours and the tools are not. Tankar builds the platform around the way your business already runs, replacing the spreadsheets, shared inboxes and manual hand-offs with one system that has roles, an audit trail and reporting.
What a typical build looks like
Discovery produces a scope document that says what is out as well as what is in, and a written estimate within 48 hours. Build runs in sprints with a weekly demo and a shared project board, so progress is something you see rather than something you are told. Test, launch and run follow the same six-stage process used on Tankar's own products.
What you get at each stage
A scope document and estimate after discovery, a clickable prototype after design, working software in your repository after every sprint, a test report before launch, and a runbook and monthly report once the system is live.
Typical engagements
What this service usually produces, as deliverables rather than adjectives.
- Internal operations platform replacing spreadsheets and email approvals
- Customer or partner portal connected to an existing ERP or CRM
- Booking and scheduling system with customer, partner and admin apps
- Workflow and approval system with roles, audit trail and reporting
- Rebuild of a legacy business application as a web platform
- Integration layer between existing systems and a new front end
How it runs
The stages this service goes through, and what you see at each one.
Discovery
A scoped call, a scope document that lists what is out as well as what is in, and a written estimate within 48 hours.
The written estimate follows within 48 hours of the scoped call.
Design
User flows, wireframes and a clickable prototype for the screens that carry risk, reviewed with the people who will use them.
Build
Sprints with a weekly demo and a shared project board. Code in your repository from the first sprint.
An MVP typically runs 8 to 12 weeks from discovery to launch.
Test
Automated tests on every pull request, a QA pass on each release candidate, and a security review before launch.
Launch
Production deployment with monitoring, a runbook and a handover session.
Run
Warranty period, then an SLA-backed maintenance plan with a monthly report.
- Timeline
- An MVP typically takes 8 to 12 weeks from discovery to launch. Larger platforms are estimated in phases, each with its own scope document.
- Team shape
- A pod of a named project manager, a designer, engineers and a QA engineer who stay on the engagement together.
Stack for this service
The technologies this work is usually built on, and why each one is used here.
| Technology | Why we use it here |
|---|---|
| Next.js | Server-rendered pages that load fast on mobile and can be indexed where the product has public pages. |
| TypeScript | Types catch a class of bugs before QA and keep the code readable for the next engineer, which matters when the code is in your repository. |
| Node.js | One language across the front end and the API, with a large library ecosystem for integrations. |
| PostgreSQL | One well-understood database for transactions, search and reporting, available managed on every major cloud. |
| Playwright | Browser tests for the flows that matter most, run on every pull request. |
Selected work
Case studies where this service carried the engagement. Only outcomes with a source are shown.
Anonymised clientLogisticsBooking and workforce scheduling for a home-services business
A booking and scheduling platform that assigns jobs to service partners by skill, area and availability without double-booking anyone.Services: Custom software development, Mobile app development and 1 moreRead the case study
Anonymised clientRetail and e-commerceA multi-vendor marketplace with vendor self-service and compliant invoicing
A marketplace where vendors onboard themselves, list and price their own stock, and are paid out against a commission engine with GST-compliant invoices.Services: E-commerce and marketplace development, Custom software development and 1 moreRead the case study
Engagement models that fit
Fixed price suits a defined scope, time and materials suits evolving work, and a dedicated team suits ongoing product development.
- Fixed priceA defined scope with a clear end state: an MVP, a website, a well-specified module or an integration.
- Time and materialsEvolving products, research-heavy work such as AI features, and engagements where the backlog is set sprint by sprint.
- Dedicated teamOngoing product development where you want engineers who know the codebase and stay on it, working as an extension of your own team.
Questions buyers ask
What buyers ask most about this service, answered before the first call.
Tell us what you are building.
NDA on request. Written estimate within 48 hours of a scoped call. Reply within one business day.