Skip to content
OneLabX

Custom Software Development

Custom software, engineered to last.

When off-the-shelf software no longer fits, you need software built around how your business works. OneLabX is a software development company providing custom software engineering services — web applications, APIs, mobile apps and integrations — delivered by senior engineers with a strong focus on quality and maintainability.
See capabilities

01The challenge

Software that works today but resists change tomorrow.

Many custom systems are delivered quickly and then become hard to change: little test coverage, unclear architecture and knowledge locked in a few people's heads.

We build software that your team can understand, extend and operate long after the first release.

02Our approach

How we deliver custom software development.

  1. 01

    Understand the domain

    Model the business processes, data and users before choosing technology.

  2. 02

    Design the system

    Architecture, APIs and data models documented as decision records you can review.

  3. 03

    Build with quality

    Code review, automated testing and continuous integration from the first commit.

  4. 04

    Hand over or stay on

    Thorough documentation and knowledge transfer, or ongoing development as an embedded team.

03Capabilities

What we build.

  • Web application development

    Fast, accessible web apps built with React, Next.js and modern back ends.

  • API engineering

    REST and GraphQL APIs that are versioned, documented and secure.

  • Mobile app development

    Cross-platform iOS and Android apps that share logic with your web product.

  • Systems integration

    Connecting ERPs, CRMs, payment providers and legacy systems.

  • Legacy modernisation

    Incrementally replacing ageing systems without risky big-bang rewrites.

  • Dedicated engineering teams

    Senior engineers who join your team and work in your rituals and tools.

Deliverables

  • Domain model and architecture decision records
  • Production application and APIs
  • Automated test suite and CI/CD
  • Technical and user documentation
  • Knowledge transfer sessions
  • Support and maintenance options

Typical use cases

  • Internal platforms and operations tools
  • Customer portals and marketplaces
  • Partner and public APIs
  • Modernising legacy applications

Technology expertise

  • TypeScript
  • React
  • Next.js
  • Node.js
  • Python
  • React Native
  • PostgreSQL
  • Docker

Listing implies no partnership or certification.

04FAQ

Common questions.

Ask us something else
How do you price custom software development?

Either as a fixed-scope project after discovery or as a dedicated team on a monthly basis. We recommend the model that best fits how well-defined the scope is.

Can we hire a dedicated software engineering team?

Yes. Our embedded team engagement gives you senior engineers who work as part of your team, with OneLabX handling quality and continuity.

Do you maintain software after launch?

Yes. We offer ongoing maintenance and improvement, or a structured hand-over if your team will take ownership.

Which industries do you work with?

Our engineering approach is industry-agnostic. We spend time understanding your domain during discovery rather than relying on templates.

05Explore further

Related services, solutions and insights.

Your next chapter starts with a conversation

Ready to talk about custom software development?

Tell us about your goals and constraints. We'll come back with honest advice on the best way forward.

Start a Project