1,401 Cross Platform Developer jobs in the United Kingdom

Our client, a leading name in men's fashion retail, is currently seeking a talented Mobile App Developer to join their dynamic and fast-growing IT team. Situated on the outskirts of Scarborough, this role offers the opportunity to work with a passionate team to develop and maintain the company's customer-facing eCommerce apps.

• Support, coach, and develop the app team to maintain best practice standards
• Own the day-to-day development of the front-facing elements of the company's native apps
• Continually improve the shopping experience for a wide variety of users globally
• Gatekeep the versions and change history to ensure timely deployment of tested updates and features
• Adopt best practices for designing retail eCommerce apps

• Proficiency in Android app development, with experience in Kotlin and/or Swift
• An eye for design and attention to detail with a focus on enhancing customer experience
• Experience in a similar app development role or a readiness for career progression
• Strong self-organisation and time management skills

• Strong interpersonal skills for building internal and external relationships
• Passionate about web design, consistency, and detail
• Ability to react positively and quickly to various situations
• Energetic approach with a positive attitude
• Flexibility to thrive in a fast-paced and dynamic business environment
• Able to showcase design skills through a portfolio

If you are an experienced Mobile App Developer ready for a new challenge, we would love to hear from you. Apply now to join our client's esteemed IT team and take your career to the next level.

Mobile App Developer - Remote UK - £55000

We are helping an innovative technology business scale their Software Testing team in in the UK.

Their software powers some of the worlds leading consumer brands across the digital commerce and experience space.

Due to continued growth and demand for their products they now urgently need a Mobile App Developer.

This role would suit a Mobile App Developer who has experience using Capacitor to push to iOS and Android.

This role is remote and their HQ is based in Milton Keynes. You will need to work in the office on rare occasions.

To be a successful, the ideal Mobile App Developer candidate will have:

·   Strong background in iOS and Android development using Capacitor

·   Knowledge of PHP and MySQL

·   Experience of putting mobile apps live to the app store

·   Confident communicator.

What is in it for you? As a talented Mobile App Developer you can expect:

·   Great salary - Up to £55,000 base and Package (neg for the right person)

If you are an ambitious Mobile App Developer hit apply and we will do the rest.

Please apply with your CV and we will be in touch for a confidential chat.

Noa Recruitment specialise in helping Software and Web Professionals and technical talent find great careers. If this role doesn't sound like you, but you know a great person who might be interested then please do share these details with them.

Our client, a leading name in men's fashion retail, is currently seeking a talented Mobile App Developer to join their dynamic and fast-growing IT team. Situated on the outskirts of Scarborough, this role offers the opportunity to work with a passionate team to develop and maintain the company's customer-facing eCommerce apps.

• Support, coach, and develop the app team to maintain best practice standards
• Own the day-to-day development of the front-facing elements of the company's native apps
• Continually improve the shopping experience for a wide variety of users globally
• Gatekeep the versions and change history to ensure timely deployment of tested updates and features
• Adopt best practices for designing retail eCommerce apps

• Proficiency in Android app development, with experience in Kotlin and/or Swift
• An eye for design and attention to detail with a focus on enhancing customer experience
• Experience in a similar app development role or a readiness for career progression
• Strong self-organisation and time management skills

• Strong interpersonal skills for building internal and external relationships
• Passionate about web design, consistency, and detail
• Ability to react positively and quickly to various situations
• Energetic approach with a positive attitude
• Flexibility to thrive in a fast-paced and dynamic business environment
• Able to showcase design skills through a portfolio

If you are an experienced Mobile App Developer ready for a new challenge, we would love to hear from you. Apply now to join our client's esteemed IT team and take your career to the next level.

OnBuy is on a mission to disrupt the eCommerce space with a fair, transparent, and seller-friendly marketplace. As we continue to scale, we’re investing in our mobile experience to better serve our customers and sellers. We're now looking for a talented Senior Mobile App Developer to join our growing tech team and lead the evolution of our mobile apps.

Key Responsibilities:  

• Lead the development and maintenance of high-quality mobile applications from concept through to launch.
• Build robust, scalable, and performant apps for both iOS and Android platforms using Swift and Kotlin.
• Collaborate with backend and frontend teams to ensure seamless integration across the full stack.
• Implement and maintain WebView-based functionality while planning for a transition to more native app features.
• Integrate with Firebase services including Cloud Messaging, Realtime Database, and App Distribution.
• Manage app deployment pipelines using CI/CD tools like Fastlane and GitLab CI, including code signing and store submissions.
• Ensure secure coding practices and compliance with platform guidelines.
• Debug and resolve issues using platform-specific tools and logs.
• Implement features such as push notifications, deep linking, and gesture recognition.
• Support the wider development team with front-end tasks when needed, using HTML, CSS, and JavaScript.
• Contribute to architectural decisions and help shape the future of mobile at OnBuy

Requirements

Experience and Skills:  

Essential

• Proven experience developing and launching mobile apps for both iOS and Android.
• Frontend experience (with CSS, HTML and JavaScript. Vue.js — a big bonus)
• Strong proficiency in Swift (iOS) and Kotlin
• Experience working with Android Studio, Xcode, and Apple Developer Console.
• Solid understanding of the differences between iOS and Android ecosystems.
• Experience with Firebase, including FCM, App Distribution, and Realtime Database.
• Familiarity with CI/CD pipelines, automated testing, and deployment processes.
• Experience using tools like Fastlane to automate testing, building, signing, and publishing.
• Comfortable working in a start-up or scale-up environment with a fast-paced, agile approach.
• Excellent problem-solving skills and the ability to think algorithmically.
• Working knowledge of HTML, CSS, and JavaScript to support front-end development when required.

Desirable

• Full stack experience (including backend)
• Experience with hybrid frameworks (e.g. React Native, Flutter) and integrating native functionality.
• Familiarity with analytics tools and performance monitoring for mobile apps.
• Contributions to open-source projects or a portfolio of published apps.

Benefits

The salary range on offer for this role is £55,000 - £60,000 per annum, depending on experience.

We also offer the following benefits:

• 25 days annual leave + Bank Holidays
• 1 extra day off for your Birthday
• Employee Assistance Programme
• Perks at Work benefit platform
• Opportunities for career development and progression

Plus in return for helping us to grow, we’ll offer you company equity, meaning you own a piece of this business we are all working so hard to build.

Our Commitment

OnBuy is an equal opportunities employer. We are dedicated to creating a fair and transparent workforce, starting with a recruitment process that does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age.

What you'll be doing

Future's mobile app products are a core source of revenue and projected growth. You will be part of Future's technology investment, focused on rolling out new apps for our broad range of brands.

Reporting to the Tech Lead, you'll be an important member of Future's Apps Team, working in close collaboration with the wider Technology & Engineering department.

Your aim will be to contribute to the delivery of a scalable, well structured, efficient “multi-brand” app platform integrated with a broader range of internal and external services.

The job will involve working on both green-field projects, using the latest libraries and best practice, and maintaining and improving legacy systems. You will work with Senior Developers and the team lead on the development of software components, refactoring existing code and working in collaboration with other teams to build new services and products.

Experience that will put you ahead of the curve

• React Native and TypeScript expertise  with a track record delivering high-quality iOS and Android apps, including diverse theming and UX considerations (Tamagui, accessibility, etc.).
• Effective communicator  able to convey technical concepts to non-technical audiences and lead collaborative teams using Git/GitFlow, with peer review best practices.
• Experience with data handling  from databases and APIs, with an understanding of database technologies (SQL, NoSQL, Vector, Graph) and asynchronous architectures (queues, topics, subscriptions, and event sourcing).
• Experience with modern DevOps  practices, including CI/CD pipelines, AWS, and related tools.
• Broader technical proficiency  across Swift, Java/Kotlin for native mobile, modern web development, and AI tooling (e.g., Cursor).

What's in it for you

The expected range for this role is £40,000 - £50,000

This is a Remote-based role

… Plus more great perks, which include;

• Uncapped leave, because we trust you to manage your workload and time
• When we hit our targets, enjoy a share of our profits with a bonus
• Refer a friend and get rewarded when they join Future
• Wellbeing support with access to our Colleague Assistant Programmes
• Opportunity to purchase shares in Future, with our Share Incentive Plan

Internal job family level Technology 6

Who are we…

We're Future, the global leader in specialist media. With over 3,000 employees working across 200+ media brands, Future is a prime destination for passionate people worldwide looking to consume trusted, expert content that educates and inspires action - both online and off - through our specialist websites, magazines, events, newsletters, podcasts and social spaces.

We've got ambitious plans that further build on our growth momentum and unlock new opportunities – and we're looking for driven people who want to be a part of it!

Our Future, Our Responsibility - Inclusion and Diversity at Future

We embrace and celebrate diversity, making it part of who we are.

Different perspectives spark ideas, fuel creativity, and push us to innovate. That's why we're building a workplace where everyone feels valued, respected, and empowered to thrive.

When it comes to hiring, we keep it fair and inclusive, welcoming talent from every walk of life. It's not just about what you bring to the table — it's about making sure the table has room for everyone.

Because a diverse team isn't just good for business. It's the Future.

Find out more about Our Future, Our Responsibility on our website.

Please let us know if you need any reasonable adjustments made so we can give you the best experience!

#LI-Remote

As an Innovations engineer you will be developing software-based solutions to business problems in a small team of full-stack software engineers. These solutions will be aimed at ensuring TUV SUD is well placed to deliver future services in a timely, efficient and competitive manner. You will be developing tools that will be used internally to support the business as we push to digitize and automate our internal processes. As part of the Innovations Team, you will liaise with various parts of the business to provide new and innovative software solutions for internal company usage. You will be expected to input on software requirements, software implementation and propose effective solutions.

Where the vacancy is filled from within TUV SUD, a handover period will be required to allow for training and delegation of current responsibilities.

Duties and Responsibilities

• Writing C#/.NET software to automate manual processes and help improve efficiencies across the business.
• Functioning as a full-stack developer, working within a small team that is delivering both front-end and back-end software.
• Contributing to the design of Innovations projects.
• Participating in and contributing to Innovations practices such as Agile ceremonies and trainings.
• Automation of data collection, analysis and reporting using databases (SQL).
• Upgrading and improvement of legacy tools.
• Code sharing within the Innovations Team to speed up development process.
• Training for Service Line employees in areas where new software tools have been deployed by the Innovations team.
• Produce and prove solutions in concept with working prototypes.
• Provide regular updates on project progress.
• Track project progress using DevOps.

Essential Criteria:

• HND (or higher) or equivalent in Engineering or equivalent experience.
• Demonstrable professional experience in software engineering.
• Proficient in C# and .NET.
• Experience with HTML and CSS.
• Experience with SQL, preferably T-SQL.
• Experience with both front-end and back-end development.
• Experience with a web development framework, preferably Blazor.
• Ability to develop a working software solution in a team environment from concept to finished product.
• Team player, maintaining a high level of accuracy and attention to detail, good communication skills at all levels.
• Self-motivated with a desire to learn new skills and make a business impact.

Desirable Criteria:

• SQL Server experience, preferably using stored procedures.
• Experience using Azure DevOps in an Agile team.
• Experience running Agile ceremonies.
• Experience with Refit and Insight.Database.
• Strong communication skills and ability to communicate technical problems and potential solutions clearly to non-technical staff.

Further Information

TV SD in the UK offers a competitive salary and benefits package that includes a minimum of 33 days holiday entitlement (for full-time employees, including public holidays), a contributory Group Personal Pension Plan and a non-contributory Group Life Assurance Scheme. We also offer various Salary Exchange/Sacrifice schemes (buying/selling holiday, cycle to work scheme, pensions), incentive schemes and comprehensive wellbeing support (Employee Assistance Programme, Dental Scheme and Occupational Health services). Dependent on their role, employees may also be eligible for hybrid/permanent homeworking, a Company Car/Car Allowance and Private Medical Insurance.

Location: Chesterfield (Hybrid)
Job Type: Full-Time | Contract
Hourly Rate: 50.00p/h Outside IR35

Are you ready to engineer the future? We're on the hunt for a Project Software Engineer who's not just technically brilliant, but also passionate, proactive, and driven to deliver excellence. If you thrive in a fast-paced environment, love solving complex problems, and want to be part of a team that builds cutting-edge industrial solutions-this is your moment.

Join us and take ownership of high-impact projects, from concept to commissioning, while working with the latest in PLC, SCADA, and automation technologies. You'll be a key player in shaping intelligent systems that power industries across the globe.

What You'll Be Doing

• Lead the Charge: Deliver core project modules-PLC programming, SCADA development, testing, networking, documentation, and hardware design.
• Collaborate & Conquer: Work alongside Senior Engineers and Project Managers to meet technical and quality benchmarks.
• Engineer with Excellence: Champion a "right first time" mindset, ensuring every solution meets scope, budget, and timeline.
• Drive Innovation: Spot opportunities for system standardisation and modularisation to boost efficiency and reusability.
• Own the Process: Ensure compliance with company quality standards and safety protocols.
• Be the Safety Beacon: Lead by example in promoting health and safety on every project.

What You Bring

Must-Have Experience

• Proven track record in system specification, design, development, and testing.
• Hands-on expertise with Siemens S7 PLCs and WinCC SCADA systems.
• Solid understanding of control panels, electrical installations, and instrumentation.

Bonus Skills (Desirable but not essential)

• Development of PLC code modules, SCADA scripts, mimics, and comms drivers.
• Progress reporting and scope management.
• Peer reviews and documentation development (FDS, DDS, test specs, O&M manuals).
• Site surveys, installation, testing (CFAT, SAT), and warranty support.

Qualifications

• Degree or HND/HNC in Electrical / Electronic Engineering, Control Systems, or a related field.
• Working towards or already an Incorporated Engineer with professional registration.

Why Join Us?

• Work on transformative projects with real-world impact.
• Collaborate with industry-leading engineers and innovators.
• Grow your career in a supportive, forward-thinking environment.
• Be part of a company that values quality, safety, and continuous improvement.

This vacancy is being advertised by Belcan

PHP / GoLang Software Engineer

• GoLang, PHP, LAMP, AWS
• Fareham, Hampshire. This is an in office role.
• Salary 70,000 plus excellent benefits

An exciting new opportunity for a PHP / GoLang Engineer to join an exciting technology business based in Fareham, Hampshire. You will be given the chance to join a technically minded development team to constantly evolve their internal technology stack.

Working within a dedicated LAMP and Go environment and reporting to the project manager, you will be helping to plan and develop the product and its internal driven websites, data migration and help with support and maintenance of security and storage services. Training and upskilling in GoLang will be provided

Desired skill set that includes:

• GoLang
• OOP
• PHP5+
• MySQL
• Git

Beneficial Skills:

• Google Cloud / AWS
• Docker
• Load Balancing
• TDD
• Code Review

The company offer an unrivalled volume of new projects, Greenfield development and the opportunity to work with and learn from some of the sharpest developers in the area.

On top of a competitive salary the company offer some fantastic financial and lifestyle benefits including; free access to local gym and health spa, onsite chef (free cooked breakfast & lunch!), childcare vouchers, cycle to work scheme, pension, BUPA healthcare.

To be considered for this position please send your CV to (url removed) or call (phone number removed)

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Software Engineer - London (Onsite, 5 Days per Week)
80,000 - 100,000 + Benefits

We are representing a specialist SME consultancy partnered with a leading AI and technology firm, delivering mission-critical solutions to the UK Defence and Intelligence community.

This is a unique opportunity to work on a cutting-edge new platform that is shaping the future of national security. The role is language-agnostic - we're not looking for expertise in one specific technology stack. Instead, we want highly skilled software engineers with strong experience in at least one modern programming language and the ability to quickly adapt and learn new ones.

You will be working at the forefront of innovation on programmes of national importance , collaborating with some of the brightest minds in the industry. This is a full-time, London-based position (onsite, Monday-Friday).

Due to the sensitive nature of the work, candidates must hold current SC or DV clearance.

If you're a high-calibre engineer seeking to apply your skills to projects that truly make a difference, we want to hear from you.

Apply now to join a forward-thinking team where your expertise will directly contribute to the UK's national security capabilities.

People Source Consulting Ltd is acting as an Employment Agency in relation to this vacancy. People Source specialise in technology recruitment across niche markets including Information Technology, Digital TV, Digital Marketing, Project and Programme Management, SAP, Digital and Consumer Electronics, Air Traffic Management, Management Consultancy, Business Intelligence, Manufacturing, Telecoms, Public Sector, Healthcare, Finance and Oil & Gas.