Mobile Engineer - Flutter | London

About Us At Konrad Group, we are a pioneering digital consultancy committed to addressing intricate business challenges faced by our global clientele. Our culture thrives on innovation, and we take pride in creating best-in-class digital products that are utilized by millions of consumers worldwide. We seek highly intelligent, analytical, and diligent individuals who are passionate about continuous learning. Role Overview As an iOS Developer, you will engage in the development of iOS applications, collaborating closely with our accomplished software development team. Your role will involve contributing to both consumer and enterprise applications, making it a perfect fit for developers who are confident in their technical skills and eager to be part of a dynamic and continuously evolving team at Konrad. Your Responsibilities Develop maintainable, testable, and high-performance software in conjunction with our exceptional team. Engage in code reviews and conduct thorough testing to guarantee the delivery of top-quality software. Investigate new technologies and tools, sharing insights with the team. Communicate effectively with all team members to facilitate collaboration. Requirements Proven experience in building iOS applications using Swift. Strong understanding of essential programming and computer science concepts. Comprehensive knowledge of the end-to-end mobile application development process, including server-side interactions. Solid grasp of core mobile principles such as UI implementation, common development frameworks, and REST APIs. Familiarity with common architectural patterns like MVVM, MVP, and MVC. Excellent interpersonal skills, as teamwork and communication are key to our success. A proactive mindset with a strong desire to produce outstanding work. A passion for enhancing software development workflows and processes. Preferred Qualifications Familiarity with functional reactive programming and ReactiveX frameworks is advantageous. Experience with Objective-C. Knowledge of modern networking approaches, such as GraphQL. Additional mobile development experience, including Android development with Java or Kotlin, or cross-platform development using React Native, Flutter, Ionic, Xamarin, or Cordova.

Join a vibrant and dynamic team where the principle of 'freedom with responsibility' drives our culture. At Billetto, our tech team consists of passionate developers dedicated to leveraging the latest technologies and tools that inspire us. If you have a keen interest in the startup ecosystem and are eager to gain hands-on experience with a rapidly growing startup, you've found the right place.As an iOS Developer, you will play a crucial role in developing our iOS 'members' app, available on the App Store, as well as our specialized app for event organizers.We offer a competitive salary, comprehensive benefits, and an office located in the heart of East London.

About Air Apps Air Apps began as a family-founded company in Lisbon, Portugal, in 2018. The team set out to improve personal and entrepreneurial resource planning with an AI-powered Personal & Entrepreneurial Resource Planner (PRP). Since then, Air Apps has grown to operate in both Lisbon and San Francisco, remaining self-funded and reaching over 100 million downloads worldwide. The company focuses on building tools that help people plan, work, and live better. Every team member contributes to shaping how individuals manage their resources and daily lives. Senior iOS Engineer Role The Senior iOS Engineer will play a key role in developing and maintaining Air Apps’ iOS applications. This work includes ensuring high performance, reliability, and a strong user experience across the app suite. Collaboration is central: expect to work closely with designers, product managers, and other engineers to deliver new features and refine existing ones. Strong skills in Swift and a deep understanding of iOS development best practices are essential for success in this position. The team values innovation and attention to detail to keep their apps competitive in the App Store. Work Location and Relocation This is a fully onsite position based in Lisbon. Relocation assistance is provided for those moving to Lisbon.

Role overview Motorway is looking for a Senior iOS Engineer based in London. The focus of this role is to build and enhance iOS applications that support an easier car selling experience for users. The work involves designing features that encourage engagement and help Motorway deliver its services more efficiently. What you will do Design and develop iOS applications for Motorway’s platform Collaborate with product, design, and engineering teams to deliver dependable software Contribute to shaping new features and improving overall app performance Collaboration This role requires frequent teamwork with colleagues across different departments to ensure the software aligns with both user needs and business objectives.

About xAIAt xAI, our mission is to develop artificial intelligence systems that genuinely comprehend the universe, empowering humanity's quest for knowledge. Our compact team is driven, highly motivated, and committed to engineering excellence. We seek individuals who relish challenges and are fueled by curiosity. Operating with a flat organizational structure, we encourage every employee to engage hands-on and contribute significantly to our mission. Leadership opportunities are awarded to those who demonstrate initiative and consistently deliver outstanding results. Strong work ethics and effective prioritization skills are essential for success in our environment. Excellent communication skills are also vital, as all team members must share knowledge clearly and concisely with their peers.About the RoleWe are on the lookout for an outstanding iOS engineer to join our small yet impactful team, focused on developing one of the most valuable AI applications in the world based on its user impact. You’ll be instrumental in crafting innovative mobile experiences that merge technical finesse with product excellence. The ideal candidate will possess the following qualifications:

Role overview ASOS seeks an iOS Engineer in London to help shape the mobile shopping experience for millions of users. This position centers on building and maintaining iOS applications that make shopping simple and enjoyable. What you will do Collaborate with designers, product managers, and fellow engineers to design and refine mobile features. Develop, test, and maintain iOS applications with a focus on quality and performance. Share ideas and feedback to help ensure the apps meet user expectations and continue to improve. Location This role is based in London.

Join Our Dynamic Team as a Lead iOS Software EngineerAt arq, we are on the lookout for an exceptional Lead iOS Software Engineer who exemplifies hands-on engineering prowess. In this pivotal role, you will set the standard for engineering excellence, guiding your team through insightful code reviews and innovative architectural design. Your leadership will inspire a growing mobile team to craft elegant, reliable, and visually stunning experiences that redefine financial product expectations.This is a high-impact position within our Core Product Team, where your contributions will directly influence the scaling and enhancement of the ARQ experience, from our flagship application to exciting new initiatives like Premium, Credit, and other groundbreaking financial products on the horizon.Your ResponsibilitiesAct as the hands-on technical authority for all iOS-related projects—writing top-tier code, conducting thorough code reviews, and ensuring technical superiority throughout our applications.Collaborate closely with Product and Design teams to create pixel-perfect user experiences with meticulous attention to detail, optimal performance, and unwavering reliability.Design, develop, and maintain scalable mobile features that prioritize security, speed, and user delight.Review and elevate code quality, sharing insights that enhance engineering practices across the app.Lead the advancement of our mobile architecture to accommodate a diverse range of products (Premium, Credit, etc.).Work closely with cross-functional teams to deliver quickly without compromising on quality.Oversee the entire lifecycle of features—from design and implementation to testing and deployment.Your Qualifications6+ years of professional iOS development experience, preferably with complex, high-scale consumer products.Demonstrated expertise in Swift and Apple's iOS ecosystem (UIKit, SwiftUI, Combine, etc.).Solid understanding of design patterns, architecture (MVVM, Clean Architecture), and testing methodologies.A genuine passion for UI/UX design—you pay attention to the minute details that elevate product quality.Proven track record of delivering exceptional products from start to finish in fast-paced, high-growth environments.Bonus: Experience in the fintech, payments, or digital banking sectors.Why Work with Us?At arq, you will be part of a forward-thinking team that is passionate about redefining financial services. Our culture promotes continuous learning and innovation, ensuring you are always at the forefront of technological advancements.

Greetings! We are Plum, your innovative saving and investing application dedicated to helping you grow your finances for a lifetime. Whether you're saving for your first home or planning for a sun-soaked retirement, Plum is here to support you.Since our inception in 2016, over 2 million users across 10 European markets have saved more than £2 billion through our intelligent automation and advanced AI. This is the magic of Plum! We've also received accolades from prestigious organizations, including Deloitte and Finder, for our outstanding contributions.Our success is thanks to our passionate team of over 200 Plumsters, who work collaboratively across Europe to fulfill our mission. We are now eager to welcome more talented individuals to join us on this exciting journey.The Team and the RoleWe are on the lookout for a customer-centric iOS Engineer to join our engineering team in London. Plum has been recognized multiple times by Apple, having been named App of the Day and holding a stellar rating of 4.6 stars with 53,000 reviews. In this role, you will be instrumental in developing the iOS version of Plum, enhancing the way our current and future users interact with their finances.Our Engineering PhilosophyWe prioritize sound engineering principles, creativity, uniqueness, and a healthy sense of curiosity. Our approach to using external frameworks is deliberate, and we aspire to craft simple, well-tested code that can be delivered rapidly.How We CollaborateOur teams operate in squads. Each squad is mission-driven and includes Product Managers, Designers, Backend and Mobile engineers, all aimed at developing and maintaining products, services, and tools that deliver an unforgettable user experience while addressing any operational needs from Plum's side. Squads are organized into Pillars that align with our distinct strategic business areas, and we place significant trust in data-driven and well-informed squads that take ownership of their work.As an iOS Engineer, you will be part of a Mobile engineering team that shares the same vision and enthusiasm for building an exceptional mobile experience that empowers users to achieve financial well-being.Your ResponsibilitiesDevelop a product that enhances users' financial well-being.Engage with Swift programming and stay updated on the latest iOS technologies.Possess in-depth knowledge of the complete iOS stack.Have experience in deploying and iterating on applications in the App Store.Collaborate closely with designers, transforming their visions into delightful user experiences.Understand the significance and impact of your contributions as a product person.Go above and beyond to add that extra touch of excellence.

Senior iOS Software EngineerAt Deliveroo, we are on a mission to revolutionize the way people shop and dine. Our culture is driven by impact, innovation, and growth, as our engineering teams confront intricate technical challenges in a global, three-sided marketplace, constructing and scaling systems that cater to millions of customers, riders, and partners daily.From real-time logistics to resilient infrastructure and marketplace optimization, we create and maintain the technology that fuels Deliveroo's expansive growth.We are seeking a Senior iOS Software Engineer to enhance our London team. In this position, you will play a vital role in evolving our mobile architecture and delivering high-performance features that shape the future of on-demand delivery. This position allows for a hybrid work setup, typically involving 3 days in the office.Learn more about our Engineering team — discover our motivations, work dynamics, and what you can anticipate.Your ResponsibilitiesAs part of the Consumer team, you will be pivotal in ensuring that millions of users effortlessly transition from

Join Engine by Starling, where we are dedicated to partnering with top-tier banks worldwide to fuel their ambitions for rapid business growth through our cutting-edge technology.As a software-as-a-service (SaaS) division of Starling Bank, Engine was established to provide the innovative technology that has powered Starling's remarkable success. Our platform is now available for banks and financial institutions globally, allowing them to leverage advanced digital features and streamlined back-office processes.At Engine, we foster a collaborative environment where every team member contributes to delivering exceptional results for our clients. We are engineering-focused and seek passionate individuals eager to harness Engine’s technology to revolutionize banking across various markets. Our work is driven by five core values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.Hybrid Working ModelWe embrace a Hybrid working model at Engine, preferring that team members reside within a commutable distance from our offices to facilitate in-person collaboration.About Engineering at Engine by Starling - https://www.enginebystarling.com/We are actively seeking iOS Engineers to enhance the Engine Platform, ensuring our features cater to banks worldwide while also developing new functionalities that have yet to launch in the UK market.Engine by Starling engineers are enthusiastic about contributing to the rollout of new features, regardless of their primary technology stack. Learn more about our team through the case studies below, including our collaboration with Women In Tech.

About the RoleJoin us at SumUp, where our mission is to connect merchants and consumers, fostering the growth of local communities. With SumUp Pay, we are revolutionizing the banking experience, allowing consumers to effortlessly connect with their favorite small businesses while ensuring merchants enjoy free transactions.SumUp Pay simplifies money management for consumers, providing them with enhanced spending experiences and financial tools that are tailored for today's lifestyle—covering banking, card services, savings, and open banking functionalities.This pivotal engineering role involves taking full ownership of the SumUp Pay iOS application, where you will develop and ensure the quality of features that consumers use daily. You will collaborate closely with Backend Engineers, Product Managers, Designers, and Android Engineers to create polished, reliable, and impactful mobile experiences.

About the Role Speechify is hiring an iOS Core Product Software Engineer in London. This role focuses on building and improving our core iOS applications. The work centers on delivering a smooth, engaging experience for users. What You Will Do Develop and enhance key features in Speechify’s iOS apps Work closely with teams across engineering, design, and product Help shape and maintain new functionality from idea through release

About Freetrade Freetrade aims to make investing accessible and straightforward for everyone. Many people find investing intimidating or costly, and we are working to change that. Our recent partnership with IG Group lets us operate independently, while drawing on the resources of an established industry leader. In 2026, we are accelerating our product development, with plans to launch features like mutual funds, bonds, and family investment tools. We are also exploring ways to use AI to improve our customer experience. Role Overview: Mid-level iOS Engineer We are looking for a Mid-level iOS Mobile Engineer to join our London-based team. The Freetrade iOS app helps users access investment opportunities across the UK, US, and EU markets. As part of our mobile engineering group, you will help build and maintain a platform that thousands rely on daily. What You Will Do Implement new features for the Freetrade iOS app, written entirely in Swift Address user feedback and help resolve queries to improve customer satisfaction Work closely with design, product, and QA teams to deliver engaging user experiences Help prioritize platform issues and manage technical debt Contribute to architectural decisions that support a high-quality application and strong developer experience What We Look For Solid understanding of the iOS platform Strong problem-solving skills Interest in growing technical expertise within a collaborative team Willingness to learn from experienced engineers across iOS and Android Our Tech Stack iOS application built entirely in Swift Location This role is based in London.

Role overview Spotify is hiring a Senior Mobile iOS Engineer in London. The focus of this position is to build and enhance features for the iOS platform, shaping the listening experience for millions of users around the world. What you will do Design and implement new features for Spotify’s iOS app Collaborate with product, design, and engineering teams to deliver polished mobile applications Influence technical decisions that improve user experience and app performance Requirements Proven experience developing mobile applications for iOS Ability to work effectively with cross-functional teams Drive to create solutions that connect with a global audience Spotify Technology S.A. aims to unlock human creativity through the intersection of technology and music.

About Freetrade Freetrade aims to make investing simple and accessible, helping millions manage and grow their savings. With a focus on affordability and clarity, the team is committed to reshaping how people invest in the UK and beyond. After a recent partnership with IG Group, Freetrade continues to operate independently while benefiting from the backing of an established industry leader. The company is rolling out new features in 2026, including mutual funds, bonds, family investment tools, and exploring AI-driven enhancements to the customer experience. Role Overview: Mid-Level iOS Mobile Engineer This position is based in London and focuses on building and improving the Freetrade iOS app, which gives customers access to investment opportunities across UK, US, and EU markets. The engineering team works on a platform used by thousands every day, tackling technical challenges and delivering solutions that matter. The environment encourages growth, collaboration, and innovation, with opportunities to learn from experienced engineers across both iOS and Android. What You Will Do Develop and implement new features for the Freetrade iOS app. Collaborate closely with design, product, and QA teams to create user experiences that meet customer needs. Respond to customer feedback and queries, helping to maintain high satisfaction. Contribute to prioritizing platform issues, technical debt, and architectural improvements. Support the delivery of a high-quality app and a strong developer experience. What We’re Looking For Solid understanding of the iOS platform and mobile development principles. Strong problem-solving skills and a desire to keep learning. Experience working collaboratively within cross-functional teams. Interest in building products that make a real difference for customers. Why Join Freetrade’s Engineering Team? Work on a scalable, impactful platform used daily by thousands. Be part of a team driving product innovation in the investment space. Grow your skills alongside experienced mobile engineers. Help shape the future of investing for a broad customer base.

(Mid/Senior/Staff) iOS Engineer – London Please note that the positions are based in London, United Kingdom — relocation and visa support is provided if required (must currently be based in the United Kingdom or Europe). THE BEST WORK OF YOUR CAREER Trade Republic is the largest savings platform in Europe, operating across 18 countries and serving over 10 million customers who trust us with more than 150 billion Euros in assets. Our ambition is to achieve even more. We are dedicated to empowering individuals to build wealth with simple, secure, and free access to financial systems. Join us and grow your career while working alongside exceptional talent and cutting-edge technology to shape a positive future for millions. WHAT YOU'LL BE DOING Contributing your expertise to the iOS guild to uphold technical excellence. Mentoring fellow engineers while receiving dedicated support for your growth. Taking ownership of product development through collaboration with various roles, ensuring quality and timely delivery. Thriving in a dynamic, goal-driven agile environment. WHAT WE'RE LOOKING FOR A minimum of 5 years of experience in mobile engineering. Proficiency in Swift, programmatic UI, and foundational knowledge of reactive programming. A passion for creating exceptional UX and UI, with a desire to collaborate closely with our design team. A commitment to quality, with an understanding of best practices for both code and product excellence. TECHNOLOGY STACK 100% Swift SwiftUI and UIKit Reactive data flow utilizing Combine, ReactiveSwift, and WebSockets MVVM-C architecture Dependency Injection WHY YOU SHOULD APPLY NOW Our culture champions ownership, excellence, and high energy. We are deeply committed to achieving results and holding each other accountable. We aim to tackle one of the biggest challenges faced by Europeans: closing the pension gap and democratizing wealth. If this inspires you, we encourage you to reach out!

About the RoleThe Account Details Experience team is a key product group at Wise, dedicated to helping customers seamlessly navigate third-party payments. Our mission is to empower millions of users to easily receive and manage their finances across borders, revolutionizing the way the world engages in payments.We are committed to continuous innovation, expanding our product capabilities, and removing barriers to create a truly borderless financial experience. We proudly support over 8 local and more than 17 global account details, collaborating closely with regional teams to provide unmatched convenience. From receiving funds via account details to utilizing diverse payment options such as card payments, Pay with Wise, and open banking, we facilitate powerful link products, invoices, profile links, direct debits, and seamless integrations with online marketplaces.This role offers an exceptional opportunity for impact and career growth. You'll have the chance to shape the future of global payments, tackle exciting challenges, and influence how individuals and businesses connect financially on a global scale. Join us in redefining the account details experience for millions!Your ResponsibilitiesAs a Senior iOS Engineer, you will lead the development of the iOS experience, setting the stage for a transformative customer journey focused on receiving funds as the core of our account offerings. You'll play a vital role in expanding our alias implementations, unlocking new levels of convenience and flexibility for our users. Imagine making payments as simple as sharing a name or preferred handle.We seek a self-motivated and proactive iOS Engineer who thrives on ownership of their projects. This role transcends traditional coding; you will be a crucial product partner, actively participating in shaping our product roadmap. Expect to engage deeply in the entire product lifecycle, from initial ideation to building and deploying impactful features.As part of the Mobile Engineering team, you will also have the opportunity to influence other areas of the app, collaborate with over 60 other mobile engineers, and elevate both user experience and code quality across all Wise offerings. Your responsibility will include ensuring the scalability and effectiveness of your solutions, contributing to the creation of a high-quality global product, and working closely with peers across various teams.

Join Canva as a Senior UI Engineer, where you will play a crucial role in designing and developing exceptional user interfaces for our iOS and macOS applications. Collaborate with cross-functional teams to create engaging user experiences that delight our millions of users worldwide.

About Us:At IOG, we are a pioneering technology firm dedicated to exploring and advancing blockchain through rigorous research and development. Our commitment to a scientific methodology in blockchain creation is augmented by our emphasis on peer-reviewed studies and formal methods to guarantee security, scalability, and sustainability.Our innovative projects encompass the Cardano blockchain and extend into various products related to decentralized finance (DeFi), governance, and identity management, all aimed at enhancing the potential and global adoption of blockchain and Web3 technologies.Role Overview:As a Research and Innovation Grants Specialist, you will spearhead the complete lifecycle of grants for foundational blockchain R&D. This includes formal methods, security and scalability, DeFi, governance, and digital identity, as well as their practical applications in innovative projects across various industry sectors. Your responsibilities will encompass identifying and qualifying funding opportunities, developing a robust 12-24 month funding pipeline, formulating bid strategies, composing high-quality applications that align with funder objectives, and overseeing post-award budgets, deliverables, reporting, and compliance. You will coordinate inputs from research, finance, legal, and partnerships while collaborating closely with academic and industry partners to secure ongoing investment that positions our research teams at the forefront of innovation. Success will be measured by increased grant achievements and overall award values, a diversified funding mix, higher proposal win rates, expedited submission processes, timely and compliant reporting, and the creation of reusable bid assets/templates that enhance our quality and consistency in submissions.Key Responsibilities:Grant Scanning & Pipeline Development:Continuously monitor and evaluate funding opportunities from sources such as Horizon Europe, Innovate UK (IUK), National Science Foundation (NSF), and various international programs.Construct and maintain a proactive pipeline of applicable calls in alignment with IOG’s research, innovation, and venture objectives in blockchain and related areas.Grant Application Development:Lead the creation of high-quality grant proposals, encompassing the drafting of technical components, project plans, budgets, and impact narratives.Coordinate contributions from researchers, engineers, and external partners to ensure that applications are comprehensive, precise, and persuasive.Oversee timelines and submission processes for multiple applications concurrently.Project & Partnership Support:Engage with academic institutions, research consortia, and industry collaborators to co-create joint applications.Facilitate the establishment of new partnerships to enhance the competitiveness of our bids.Ensure clear communication and alignment between stakeholders throughout the grant application process.