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12 mobile app developer jobs found in London

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Contract Spy
Apr 09, 2026
Duration not stated
Senior Flutter Developer at Waracle, London/Remote, £Contract Rate
Contract Spy Hybrid (London, UK)
Waracle are looking for a Senior Mobile Flutter Developer on a contract basis for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.   We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations.   This is a hybrid role, with 2 days per week working from any of our UK offices (London, Glasgow, Edinburgh, or Dundee). This role is Inside IR35 on a contract basis.   Role Overview   A s a Senior Mobile Flutter Devel oper at Waracle, you will be responsible for designing and delivering end-to-end features and small...
Contract Spy
Apr 28, 2026
Duration not stated
AI Game Production Strategist at Voodoo, London, £Contract Rate
Contract Spy London, UK
  About Voodoo Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz. This position is fully remote within CET ±3h.   Team Joining our Live games team means collaborating with gaming industry experts on globally renowned, enduring games while embracing exciting new entrepreneurial ventures. With over seven billion downloads worldwide and a portfolio of more than 10 resilient hybrid games generating more than $20m per year, we are the world's largest and most successful hybrid publisher. You will be joining one of our Live Studios, working on Hole.io , one of Voodoo's top games....
Contract Spy
Apr 27, 2026
Duration not stated
Senior Flutter Developer at Softwire, London Area, £500-£600 per day (Outside IR35)
£500 - £600 per day
Contract Spy London Area, United Kingdom
Senior Flutter Developer - Outside IR35 - Contract   A rare opportunity to join our fast-growing technology company selling high-value software development services. An ideal role for an experienced and dynamic developer who wants to be involved with an exciting and challenging project.   Must have   Several years of experience developing customer-facing mobile apps for both iOS and Android, using Flutter. Experience working as part of a team (including tools to support collaboration, such as git and user story management software) Experience working closely with other job roles, such as designers and product owners   Nice to have   Experience with mobile back-end development / Node Experience of CI/CD/DevOps for mobile apps Experience collaborating with clients or stakeholders, including clarifying requirements and presenting work at sprint demos Have experience delivering great outcomes for...
Contract Spy
Apr 27, 2026
Duration not stated
QA Tester at Handelsbanken, London, £Day Rate
Contract Spy London, England, United Kingdom
Job Introduction Handelsbanken UK is embarking on a digital transformation programme to enhance the customer experience through increased choice and flexibility around our digital channel proposition. Working closely with Group colleagues, the UK Bank will deliver an ambitious programme of work to the core online and mobile platforms that will afford improved functionality and a more seamless user experience. The automation Test Analyst supports of our IT modernisation efforts who will be required to drive forwards the multi level testing of key system developments. This role will be responsible for testing a catalogue of new features, working collaboratively with UK and Swedish development teams, whilst focusing on the timely delivery of agreed outcomes that meet both business and customer needs. This role is to enable a fast feedback loop for the development teams working on business-critical features. You will be looking after the test planning, the ability to develop a...
Contract Spy
Apr 21, 2026
Duration not stated
Senior Flutter Developer at Softwire, London Area, £500-£600 per day (Outside IR35)
£500 - £600 per day
Contract Spy London Area, United Kingdom
Senior Flutter Developer - Outside IR35 - Contract   A rare opportunity to join our fast-growing technology company selling high-value software development services. An ideal role for an experienced and dynamic developer who wants to be involved with an exciting and challenging project.   Must have   Several years of experience developing customer-facing mobile apps for both iOS and Android, using Flutter. Experience working as part of a team (including tools to support collaboration, such as git and user story management software) Experience working closely with other job roles, such as designers and product owners   Nice to have   Experience with mobile back-end development / Node Experience of CI/CD/DevOps for mobile apps Experience collaborating with clients or stakeholders, including clarifying requirements and presenting work at sprint demos Have experience delivering great outcomes for...
Contract Spy
Apr 16, 2026
Duration not stated
Project Manger (Hospitality & POS) at Test Yantra Software Solutions Private Limited, London, £350-£400 per day
£350 - £400 per day
Contract Spy London, UK
Key Responsibilities: · Opportunity Identification & Mobilization o Partner with business and operational leaders to identify transformation opportunities across hospitality, operations, and technology. o Assess viability, alignment to business goals, and strategic impact of new ideas. o Facilitate discovery workshops and early business case development. · Project Planning & Commercial Approval o Rapidly develop initial project charters, timelines, and high-level delivery roadmaps. o Lead cost-benefit analysis and support commercial approvals in alignment with transformation governance. o Ensure risk, impact, and stakeholder assessments are in place for early decisions. · Team Mobilization & Delivery Kick-off o Build and align cross-functional teams to kick off approved initiatives. o Establish delivery governance, cadence, reporting structures, and KPIs. o Lead early-stage execution (typically 6–12...
Contract Spy
Apr 15, 2026
Duration not stated
Fullstack Product Engineer at IconicShift, London, £Contract Rate
Contract Spy London, UK
About IconicShift IconicShift AI is building a platform that turns founder intent into usable strategic outputs — clear strategies, investor-grade pitches, and practical roadmaps. It is based on the experience of Mike Harris, founding CEO of First Direct (the world’s first telephone bank), founding CEO of Egg (the world’s first internet bank), and CEO of Mercury Communications (that created some of the UK’s first mobile and cable networks). Most founders don’t fail because they lack ideas or options. They fail because their thinking drifts and they can’t afford the experienced support they need. Their story changes, priorities multiply, and the business loses its single direction. Most AI approaches just help them fail faster by accelerating rushed decisions. IconicShift works by creating a single source of strategic truth, where every decision is tracked and held to account. It refuses to move forward without explicit acceptance of core strategic bets, ensuring...
Contract Spy
Apr 13, 2026
Duration not stated
QA Tester at Handelsbanken Plc, London, £Competitive Day Rate
Contract Spy London, UK
QA Tester (Day rate Contract) { ʺdescription ʺ: ʺ Job Introduction Handelsbanken UK is embarking on a digital transformation programme to enhance the customer experience through increased choice and flexibility around our digital channel proposition. Working closely with Group colleagues, the UK Bank will deliver an ambitious programme of work to the core online and mobile platforms that will afford improved functionality and a more seamless user experience. The automation Test Analyst supports of our IT modernisation efforts who will be required to drive forwards the multi level testing of key system developments. This role will be responsible for testing a catalogue of new features, working collaboratively with UK and Swedish development teams, whilst focusing on the timely delivery of agreed outcomes that meet both business and customer needs. This role is to enable a fast feedback loop for the development teams working on business-critical features. You will be looking...
Contract Spy
Apr 13, 2026
Duration not stated
Senior Game Developer at Voodoo, Remote, £Contract Rate
Contract Spy Remote (London, UK)
  About Voodoo Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz. This position is fully remote within CET ±3h.   Team Joining our Live games team means collaborating with gaming industry experts on globally renowned, enduring games while embracing exciting new entrepreneurial ventures. With over seven billion downloads worldwide and a portfolio of more than 10 resilient hybrid games generating more than $20m per year, we are the world's largest and most successful hybrid publisher. Voodoo is creating a talented team with a big mission: find the next best way to entertain the world by...
Contract Spy
Apr 09, 2026
Duration not stated
Project Manger (Hospitality & POS) at Test Yantra Software Solutions Private Limited, London, £350-£400 per day
£350 - £400 per day
Contract Spy London, UK
Key Responsibilities: · Opportunity Identification & Mobilization o Partner with business and operational leaders to identify transformation opportunities across hospitality, operations, and technology. o Assess viability, alignment to business goals, and strategic impact of new ideas. o Facilitate discovery workshops and early business case development. · Project Planning & Commercial Approval o Rapidly develop initial project charters, timelines, and high-level delivery roadmaps. o Lead cost-benefit analysis and support commercial approvals in alignment with transformation governance. o Ensure risk, impact, and stakeholder assessments are in place for early decisions. · Team Mobilization & Delivery Kick-off o Build and align cross-functional teams to kick off approved initiatives. o Establish delivery governance, cadence, reporting structures, and KPIs. o Lead early-stage execution (typically 6–12...
Contract Spy
Apr 08, 2026
Duration not stated
Fullstack Product Engineer at IconicShift, London, £Contract Rate
Contract Spy London, UK
About IconicShift IconicShift AI is building a platform that turns founder intent into usable strategic outputs — clear strategies, investor-grade pitches, and practical roadmaps. It is based on the experience of Mike Harris, founding CEO of First Direct (the world’s first telephone bank), founding CEO of Egg (the world’s first internet bank), and CEO of Mercury Communications (that created some of the UK’s first mobile and cable networks). Most founders don’t fail because they lack ideas or options. They fail because their thinking drifts and they can’t afford the experienced support they need. Their story changes, priorities multiply, and the business loses its single direction. Most AI approaches just help them fail faster by accelerating rushed decisions. IconicShift works by creating a single source of strategic truth, where every decision is tracked and held to account. It refuses to move forward without explicit acceptance of core strategic bets, ensuring...
Contract Spy
Apr 07, 2026
Duration not stated
QA Tester at Handelsbanken Plc, London, £Competitive Day Rate
Contract Spy London, UK
QA Tester (Day rate Contract) { ʺdescription ʺ: ʺ Job Introduction Handelsbanken UK is embarking on a digital transformation programme to enhance the customer experience through increased choice and flexibility around our digital channel proposition. Working closely with Group colleagues, the UK Bank will deliver an ambitious programme of work to the core online and mobile platforms that will afford improved functionality and a more seamless user experience. The automation Test Analyst supports of our IT modernisation efforts who will be required to drive forwards the multi level testing of key system developments. This role will be responsible for testing a catalogue of new features, working collaboratively with UK and Swedish development teams, whilst focusing on the timely delivery of agreed outcomes that meet both business and customer needs. This role is to enable a fast feedback loop for the development teams working on business-critical features. You will be looking...
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