Part-Time Senior Developer – Mobile App

1 week ago

London, Greater London, United Kingdom Purple-i Technologies Ltd. Full time £30,000 - £60,000 per year

Company Overview

Purple-i Technologies Ltd. is a leading provider of innovative software solutions tailored for service-driven businesses. Headquartered in London, we specialize in the development and deployment of cutting-edge systems including EPOS platforms, Contact Management tools, the dineNET online ordering system, and custom MobileApps.

Our core focus is supporting the UK's small business sector—particularly restaurants and takeaways—with affordable, scalable solutions that enhance operational efficiency and elevate customer experience. We pride ourselves on delivering robust client support and rolling out annual updates to ensure our technologies remain both technically advanced and functionally seamless.

Role Description

We are seeking a highly experienced part-time senior developer to support ad hoc development of mobile applications and responsive eCommerce websites. This role is ideal for someone with a minimum of 5 years' experience (8+ years preferred) who can contribute immediately to ongoing technical projects.

Required Technical Expertise:

  • Backend & Database:
  • SQL Server 2015 or later
  • C#
  • ASP.NET
  • Frontend Development:
  • JavaScript (including jQuery and KnockoutJS)
  • CSS
  • Mobile App Development:
  • Experience with both iOS and Android platforms
  • Flutter framework
  • Payment Integration:
  • Stripe and PayPal APIs
  • Support for Google Pay and Apple Pay

Working Hours:

  • Monday to Thursday
  • 5:00PM – 8:00 PM UK GMT
  • Approx. 12 hours per week / 52 hours per month

Pay Rate:

  • Hourly rate negotiable based on experience and skill set

How to Apply:

Email your CV to

with the subject line:
Part-Time Developer Application

  • Part Time App Developer Intern

    1 week ago

    London, Greater London, United Kingdom Phenome Longevity Full time £25,000 - £40,000 per year

    Part Time App Developer InternPhenome LongevityThe Shard, LondonRole OverviewWe are looking for a motivated App Developer Intern to join our digital team. This is a practical, hands on learning role where you will support the development of the Phenome Longevity App. You will gain real experience working on live features user experience improvements and...

  • Senior Mobile Developer

    5 days ago

    London, Greater London, United Kingdom Oak Engage Full time £60,000 - £100,000 per year

    Location: Remote (UK Based)Reports to: Engineering ManagerType: Full-timeJoin Oak Engage – Where Communication Meets ConnectionAt Oak Engage, we're on an exciting growth journey—backed by a major investment from NorthEdge to scale our impact and redefine the future of employee engagement. Trusted by some of the UK's biggest brands, including Aldi, Five...

  • Mobile App Product Owner

    2 weeks ago

    London, Greater London, United Kingdom GamblingCareers Full time £40,000 - £80,000 per year

    We are seeking a dedicated and experiencedMobile Applications Product Ownerto join our sophisticated product management team.You will be responsible for the development and execution of our mobile app product strategy, driving innovation, and delivering outstanding mobile experiences to our clients and end users based on our new Platform.What You'll DoDefine...

  • Part-Time Senior Bookkeeper

    8 hours ago

    London, Greater London, United Kingdom The Part-Time Finance People Full time £29,400 - £51,450 per year

    Part Time Senior Bookkeeper - South LondonAbout the roleWe're looking for a Senior Bookkeeper to provide hands-on financial support to our valued clients in London. As a Senior Bookkeeper for The Part-Time Finance People, you'll provide SME clients with tailored financial support, completing day-to-day bookkeeping tasks and helping to overcome accounting...

  • Mobile Developer

    2 weeks ago

    London, Greater London, United Kingdom Light Full time £60,000 - £120,000 per year

    *Retire the ERP.*Light exists to replace factory-era ERPs with software that feels alive. Our Smart Financial Platform gives modern, global companies superpowers—automated accounting, real-time reporting, and financial flows that move at the speed of the business.We build with our customers, ship fast, and obsess over craft. In a short time, Light has gone...

  • React Native Mobile Developer

    3 days ago

    London, Greater London, United Kingdom Hays Full time £60,000 - £100,000 per year

    React Native Mobile Developer (Bluetooth LE / IoT)Hybrid in Hampshire or UK Remote£60000- £ BenefitsNote:This role cannot offer Visa Sponsorship.Must have 3+ years working commercially with React Native and must have Bluetooth LE experience.Your new companyA leading UK-based engineering firm with decades of innovation experience is looking to hire a React...

  • Senior Manager, Marketing EMEA

    24 hours ago

    London, Greater London, United Kingdom Liftoff Mobile Full time £60,000 - £120,000 per year

    Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand.Liftoff's solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange,...

  • Mobile Developer

    2 weeks ago

    London, Greater London, United Kingdom Tipalti Full time €60,000 - €120,000 per year

    Tipalti is seeking a talented and driven Mid-Senior Mobile Engineer with expertise in React Native to join our dynamic engineering team in London. You're a collaborative problem-solver who will play a crucial role in developing and enhancing our high-quality, scalable mobile applications that enable finance teams worldwide to automate their global payables...

  • Mobile Developer

    2 weeks ago

    London, Greater London, United Kingdom Tipalti Full time £90,000 - £120,000 per year

    Tipalti is seeking a talented and driven Mid-Senior Mobile Engineer with expertise in React Native to join our dynamic engineering team in London. You're a collaborative problem-solver who will play a crucial role in developing and enhancing our high-quality, scalable mobile applications that enable finance teams worldwide to automate their global payables...

  • Head of Delivery – Mobile App Accessibility

    4 days ago

    London, Greater London, United Kingdom PCR Digital Full time £60,000 - £120,000 per year

    Location:City of London, LondonSector:ConsultancyContract Type:PermanentSalary:NegotiableContact:Joe JamesContact Email:Published:1 hour agoDuration:Expiry Date:Tue, Nov Reference:BBBH13071_ Start Date:ASAPHead of Delivery – Mobile App AccessibilityAbout This OpportunityWe are supporting Welldone Consulting in their search for a founding Head of Delivery....