sjainTECH

Service

Custom Software

Platforms engineered around your process, not the other way round.

Enterprise SoftwareSaaSERPCRM
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Executive summary

What this practice is for.

Packaged software is right until the process that differentiates you has to be bent to fit it. At that point custom engineering stops being a luxury and becomes the cheaper option.

We build systems that carry real operational load: modelled domains, tested code, observable services and documentation that lets your team take ownership.

Everything we build is yours — source, infrastructure definitions and roadmap.

Business challenges

What we are usually called in to fix.

Spreadsheet-run operations

Critical processes live in workbooks nobody can audit or scale.

Over-customised packages

Upgrade paths are blocked by years of bespoke modification.

Disconnected tools

Every department bought its own system and nothing reconciles.

Vendor lock-in

You cannot change supplier because you never owned the code.

Why traditional approaches fail

  • Requirements documents freeze decisions before anyone has seen working software.
  • Body-shop delivery optimises for hours billed, not for a system that runs cheaply.
  • No non-functional requirements, so performance and reliability appear only in production.
  • Handover is a zip file rather than a supported operating model.

Methodology

The SJAIN method.

Six stages, each with defined inputs, outputs and owners.

  1. Step 01

    Discover

    Domain modelling workshops with the people who actually do the work.

  2. Step 02

    Architect

    Decide boundaries, data ownership, integration and hosting up front.

  3. Step 03

    Engineer

    Iterative delivery with automated tests, CI/CD and demo every two weeks.

  4. Step 04

    Integrate

    Connect to the systems of record and migrate data with reconciliation.

  5. Step 05

    Scale

    Performance test, harden and roll out by site, region or business unit.

  6. Step 06

    Support

    SLA-backed run, enhancement backlog and knowledge transfer to your team.

Scope of services

What is included

  • Product discovery and domain modelling
  • UX design and design system
  • Backend services and API design
  • Web and mobile application engineering
  • Data migration from legacy systems
  • Automated testing and CI/CD
  • Performance and security hardening
  • Documentation, handover and support

Deliverables

What you receive

  • Solution architecture and data model
  • Working software released on a fixed cadence
  • Infrastructure as code and deployment pipelines
  • Test suite and quality report
  • Operations run-book and training

Architecture overview

How it is built.

  1. 01

    Clear service boundaries aligned to business capabilities.

  2. 02

    One system of record per data domain, with published contracts.

  3. 03

    Stateless services behind managed gateways and identity.

  4. 04

    Event streams for cross-domain integration instead of point-to-point coupling.

  5. 05

    Observability, tracing and error budgets defined before launch.

Implementation process

  • Weeks 1–3

    Discovery, architecture and delivery plan.

  • Weeks 4–16

    Two-week increments with demonstrable software each cycle.

  • Launch

    Migration rehearsal, performance test, cutover and hypercare.

Security & compliance

  • Secure SDLC with dependency and code scanning in CI
  • Identity, SSO and fine-grained authorisation by design
  • Encryption in transit and at rest with managed keys
  • Backup, restore rehearsal and documented RPO/RTO

Benefits & ROI

The numbers this practice moves.

0–4x

Faster core process cycle time

0%

Ownership of code and infrastructure

0%+

Lower total cost than over-customised packages

Capabilities in this practice

Enterprise SoftwareLarge-scale internal platforms carrying core operational load.SaaSMulti-tenant product engineering, from MVP to scale.ERPCustom and extended enterprise resource planning aligned to your processes.CRMCustomer systems designed around your actual sales and service motion.HRMSPeople systems covering hire-to-retire with compliance built in.Hospital ManagementClinical, administrative and billing workflows in one governed platform.School ERPAcademic, administrative and parent-facing systems for education groups.Manufacturing ERPProduction, inventory, quality and maintenance on a single backbone.Fleet ManagementVehicle, driver, route and cost management with live telemetry.InventoryMulti-location stock control with accurate, reconciled positions.Project ManagementDelivery, resourcing and margin tracking for project businesses.Custom DashboardsDecision surfaces built for specific roles rather than generic reports.PortalsSecure customer, partner, vendor and citizen self-service portals.Internal ToolsAdmin and operations tooling that removes spreadsheet dependence.

Frequently asked questions

Buy for commodity, build for differentiation. We will tell you when a package is the right answer — including when it means a smaller engagement for us.

You do, from the first commit.

Related case study

Document automation for health claims

70% of manual claims effort removed

Read the case study

Downloadable guide

Custom Software capability guide

A practical guide covering methodology, architecture patterns, deliverables and typical commercial models.

Request the guide

Not sure where this practice
fits your roadmap?

We start with a discovery workshop: current state, constraints, the highest-value first slice and what it costs to prove it.

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