Skip to content

Pillar 02

Custom Software & Digital Products

Web and mobile apps, SaaS products, portals, internal tools, APIs and e-commerce, plus careful modernisation of software you already rely on.

When to involve us
When you need a new digital product, or a better version of an application you already have.
Usually for
Founders, product and engineering leaders

What does Custom Software cover?

Custom Software & Digital Products is the Directrix Technologies practice for building and modernising web, mobile and SaaS applications. It covers product discovery, custom web applications, mobile apps, SaaS platforms, customer portals, internal tools, APIs, e-commerce and legacy modernisation. Work is delivered in increments with demos, tested continuously, and handed over with documentation and the code repository in the client’s name where practicable. Directrix projects in this area include the Nusqa Android app on Google Play, SpeakMart and the Imdad-ul-Fuqaraa Trust website.

Recommended starting pointProject

Custom web application development

Design and build responsive business or customer-facing web applications.

What you get

  • Application frontend/backend
  • Authentication
  • Integrations
  • Tests
  • Deployment notes

Sounds familiar?

Off-the-shelf software cannot support a differentiated workflow.

Typical uses

Portals, booking systems, internal tools, service platforms.

Usually for

Founder, product, operations

Discuss Custom web application development
Recommended starting pointProject

Mobile application development

Build mobile applications for agreed iOS/Android targets using suitable native or cross-platform approaches.

What you get

  • Mobile app
  • API integration
  • Authentication
  • Release preparation
  • Test plan

Sounds familiar?

Customers or employees need a mobile-first product or field workflow.

Typical uses

Customer apps, field inspection, appointment booking.

Usually for

Product owner, operations, founder

Discuss Mobile application development
Recommended starting pointProject

E-commerce and D2C platforms

Build or extend online storefronts, product flows, subscription journeys and connected operations.

What you get

  • Storefront customisation
  • Catalog/order integrations
  • Analytics
  • Checkout enhancements

Sounds familiar?

A brand’s online buying journey or back-office workflow has gaps.

Typical uses

D2C brands, marketplaces, subscriptions.

Usually for

E-commerce, growth, operations

Discuss E-commerce and D2C platforms
Recommended starting pointMVP / project

SaaS product development

Build multi-user software with appropriate tenancy, plans, access control and operational foundations.

What you get

  • MVP modules
  • User/admin workflows
  • Billing integration if scoped
  • Deployment

Sounds familiar?

A company needs a repeatable software product rather than manual service delivery.

Typical uses

B2B SaaS, vertical software, subscription platforms.

Usually for

Founder, CTO, product owner

Good to know: Billing, legal terms and third-party integrations are scoped separately where needed.

Discuss SaaS product development

More Custom Software services

  • Product discovery and requirements

    Translate business goals into user journeys, requirements, scope boundaries and an initial delivery plan.

    You get: Discovery brief · User stories · Acceptance criteria · Prioritised backlog

    Discuss this
  • Progressive web applications

    Create app-like browser experiences that support mobile-friendly workflows and selected offline capabilities.

    You get: PWA frontend · Installation support · Caching/offline features if scoped · Tests

    Discuss this
  • UI/UX design and prototyping

    Map user journeys and create wireframes, prototypes and interface specifications.

    You get: User flows · Wireframes · Clickable prototype · Design system foundations

    Discuss this
  • Frontend engineering

    Implement accessible, responsive interfaces connected to application APIs.

    You get: Reusable components · Responsive screens · State and error handling · Frontend tests

    Discuss this
  • Backend and API development

    Build service logic, APIs, authentication integration and business rules for applications.

    You get: API endpoints · Service code · API documentation · Tests · Deployment configuration

    Discuss this
  • Database design and optimisation

    Design schemas, data access patterns, migrations and query improvements for defined workloads.

    You get: Schema design · Migration scripts · Indexing recommendations · Data access layer

    Discuss this
  • Legacy application modernisation

    Improve, refactor or incrementally replace parts of existing software while managing delivery risk.

    You get: Code assessment · Modernisation roadmap · Refactored modules · Migration plan

    Discuss this
  • Customer and partner portals

    Create self-service portals for customers, vendors, channel partners or employees.

    You get: Portal screens · Role-based views · Request workflows · Notifications · Integrations

    Discuss this
  • Admin panels and internal tools

    Build internal interfaces for managing records, approvals, settings and operational tasks.

    You get: Admin UI · Permissions · Audit trails where scoped · Documentation

    Discuss this
  • Subscription and billing integration

    Integrate suitable payment, invoicing or subscription services into the application.

    You get: Payment provider integration · Webhook handling · Status reconciliation · Tests

    Good to know: Provider fees, payment compliance and account approval remain client/provider responsibilities.

    Discuss this
  • Authentication and access management

    Integrate sign-in, role-based access, single sign-on or account lifecycle functions as required.

    You get: Authentication integration · Roles/permissions · Access tests · Configuration documentation

    Good to know: Scope depends on identity provider and assurance requirements.

    Discuss this
  • Real-time and event-driven features

    Build notifications, live status updates or event-driven workflows where business value justifies them.

    You get: Event flow · Notification service · Retry/error handling · Tests

    Discuss this
  • Third-party API integration

    Connect business applications with external APIs and manage authentication, data mapping and errors.

    You get: Integration service · Field mapping · Error/retry path · Integration tests

    Good to know: Dependent on provider API access, limits and documentation.

    Discuss this
  • Codebase rescue and stabilisation

    Review an inherited application, prioritise urgent defects and create a controlled remediation plan.

    You get: Technical assessment · Risk-ranked backlog · Selected fixes · Handover notes

    Discuss this
  • Software architecture review

    Review application structure, scalability, security boundaries and maintainability against needs.

    You get: Architecture review · Risk register · Decision records · Staged recommendations

    Discuss this
  • Web & Mobile Development
    Featured

    Nusqa

    Unani & Ayurveda Mobile Platform

    Own product · Live on Google Play

    An Android app sharing research-referenced knowledge of Unani, Ayurvedic and Homeopathic remedies and connecting users with traditional practitioners.

    • Mobile App Development
    • Health & Wellness
    • Traditional Medicine Education
  • Web & Mobile Development
    Sample demoFeatured

    SpeakMart

    Voice-Enabled Quick Commerce for Elderly Users

    Own product

    A quick-commerce app that lets elderly users search and order by speaking.

    • Quick Commerce
    • Speech Recognition
    • Accessibility
  • Enterprise Application Engineering
    Sample demo

    Enterprise Launch

    Workflow & Platform Engineering

    Confidential enterprise client

    Workflow logic, prerequisite validation, integrations and testing across a large enterprise application.

    • Enterprise Software Engineering
    • Full-Stack Development
  • Generative AI & AI Agents
    Sample demo

    SmartFind

    Intelligent Product Search & Recommendations

    CineGear Pro, London, UK

    Semantic product search and recommendations that match meaning, not just keywords.

    • Artificial Intelligence
    • E-Commerce
    • Semantic Search
  • Machine Learning & Data Intelligence

    FingerCheck 2.0

    Biometric Recognition & Attendance

    University of East London, UK

    Fingerprint recognition using Siamese neural networks, integrated into an attendance application.

    • Computer Vision
    • Biometrics
    • Attendance Automation
  • Web & Mobile Development

    CineGear Digital

    E-Commerce Website Modernization

    CineGear Pro, London, UK

    Responsive redesign and optimization of a media-equipment retailer's website, with AI-assisted support.

    • Web Development
    • E-Commerce
    • Digital Transformation