Lead Engineer

Collinson is a global loyalty and benefits company.

We use our expertise and products to craft customer experiences which enable some of the world’s

best known brands to acquire, engage and retain the most demanding and choice-rich customers. In

particular, our unique expertise and insight into high earning, frequent travellers allows us to create

products and solutions for our clients that inspire greater customer engagement to drive more

profitable relationships, enrich their travel experiences, protect what matters and assist in in times of

need.

While specialising in Financial Services, Travel and Retail, we also support clients in multiple sectors.

We have worked with over 90 airlines, 20 hotel groups and more than 600 financial institutions and

banks, with clients including Accor Hotels, Air France KLM, American Express, British Airways,

Cathay Pacific, Diners Club, Mandarin Oriental, Mastercard, Radisson Hotel Group, Sephora, Visa

and Vhi.

We take our 30 years’ experience working with these kinds of household names in over 170

countries, and help our clients to deliver the smarter experiences it takes to differentiate their

propositions, and help them win deeper devotion with their customers.

Collinson is a privately-owned entrepreneurial business with 2,000 passionate people working in 20

locations worldwide. Our solutions include Priority Pass, the world’s best known airport experiences

programme, while we are also the trusted partner behind many of the leading financial services,

airline and hotel brand’s reward programmes and loyalty initiatives.

Purpose of the job

As a Mobile Squad Lead Engineer, you’ll be the technical backbone of your mobile squad (around 5

7 engineers), leading from the front, writing code daily, and setting the standard for high-quality

mobile engineering across Android and iOS.

You’ll work closely with an Engineering Manager to ensure your squad delivers scalable, well

architected mobile applications, while partnering with a Product Manager and UX team to build and

ship mobile-first features and experiences.

This is a hands-on role with a strong focus on mobile architecture, coding, and problem-solving. You’ll

be the most experienced mobile engineer in the squad, responsible for refining technical

requirements, making key platform decisions, and mentoring engineers to help them grow.

Using modern mobile technologies and architectures, you’ll build and evolve native Android and iOS

applications, integrating seamlessly with backend services and cloud platforms.

If you enjoy building polished mobile products, solving complex platform challenges, and shaping the

technical direction of a mobile team, this role gives you the autonomy, responsibility, and impact to do

so.

Key Responsibilities

• Lead the design and development of native Android and iOS applications, ensuring they are

scalable, performant, secure, and well-architected.

• Provide technical leadership to the squad, guiding decisions on mobile architecture,

frameworks, libraries, and best practices in code quality, performance, accessibility, and

security.

• Remain highly hands-on, spending most of your time writing and reviewing mobile code, and

ensuring high-quality, maintainable applications.

• Collaborate closely with backend engineers to design and consume APIs that support robust

and efficient mobile experiences.

• Mentor and coach mobile engineers, fostering a culture of continuous learning, strong

ownership, and technical excellence.

• Own mobile build, release, and deployment processes, including CI/CD pipelines and app

store submissions for Google Play and Apple App Store.

• Champion automated testing, app stability, observability, and the responsible use of AI to

improve developer productivity and software quality.

Knowledge, skills and experience required

• 7+ years of professional software engineering experience, with a strong focus on mobile

application development.

• Strong experience building native Android and native iOS applications, with a deep

understanding of modern mobile architectures and best practices.

• Previous experience as a Lead Engineer, Tech Lead, or Senior Mobile Engineer leading a

small team.

• Proven experience integrating AI-assisted development tools and techniques into everyday

workflows (e.g. code generation, testing, debugging, performance analysis, or automation).

• Hands-on experience integrating mobile apps with backend APIs (REST and/or GraphQL)

and cloud-based services.

• Strong focus on testing and quality, with experience using mobile testing frameworks and

automated testing approaches.

• Experience owning mobile CI/CD pipelines, build automation, and app store release

processes.

• An observability mindset, with experience using crash reporting, performance monitoring, and

analytics tools to improve app reliability.

• Comfortable working with Git, Jira, Confluence, and modern agile engineering workflows.

• Proven ability to mentor engineers, review code and designs, and balance pragmatism with

mobile engineering excellence.