Critical MassCM

Technoly Lead iOS/Mobile

Critical Mass is a team of inspired folks based in offices around the world, providing full-service digital capabilities for the greatest brands on Earth.

Critical Mass

Employee count: 1001-5000

United Kingdom only
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Tribal is a Total Experience agency. Thinking beyond the established customer experience, we work with brands to consider the total experience – online, offline, and internal engagement and processes and create products, services, and comms that people love.

Exploring the intersection between brands, technology, and real life, we develop ideas that connect with culture and uncover compelling ways that technology can add value to real people’s lives while delivering returns to our clients.

The purpose of this role is to lead IOS/AR development teams delivering work for our clients, ensuring the on-time delivery and quality of application code. The role is a mix of hands-on development, oversight and leadership of multiple project teams and you are expected to always lead by example. The role has ultimate responsibility for implementing processes, communicating, and enforcing, ensuring mobile standards. As part of your day-to-day role, you will provide mentorship and leadership inspiring the best work from your team members.

You Will:

  • Mange the development of our core client apps, and related products.
  • Be experienced with Restful services.
  • Contribute to R&D projects with the aim of keeping our technology and infrastructure ahead of the competition.
  • Work closely and collaborate with CX designers and stakeholders to develop rich and compelling new features.
  • Carry out debugging, profiling and refactoring to improve and optimize existing code.
  • Contribute to wider discussions on tech values, business goals and company culture.

You Have:

  • 5-8 years experience developing apps.
  • Exceptional Swift skills and genuine passion for iOS development.
  • In-depth understanding of UIKit or SwiftUI, or both!
  • A dedicated follower of modern Apple frameworks and the evolution of Swift.
  • Experience in writing high quality, maintainable, testable code.
  • Enthusiasm for exploring creative solutions to uncommon problems.
  • Meticulous attention-to-detail and commitment to building first-class user experiences.
  • Familiar with current development team tools and process: Agile methodologies, version control, continuous integration.
  • Overflowing with ideas and always willing to speak up on ways to improve our products, tooling and culture.

You May Have:

  • Familiarity with one or more of the following Apple frameworks: ARKit, RealityKit, SceneKit, CoreLocation.
  • Experience working with 3D geometry.
  • Comfortable developing algorithms and working with complex data structures.
  • Experience working with Combine, RXSwift or similar reactive framework.
  • Ability to move fast when required, develop rapid prototypes and react quickly to changes.

The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week. The ask stems from our want to:


Strengthen opportunity for continuous learning
Improve collaboration and team relationships.
Increase employee engagement


This hybrid model balances the need for individual flexibility while maintaining the relentless customer focus we provide at CM. We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.

CM Liquid Talent is still an option for roles approved to be 100% remote.

Critical Mass is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We do not tolerate discrimination on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. If you are an individual with disabilities who would like to request an accommodation, please reach out to[email protected].

We are committed to fostering diversity, equity, and inclusion within our pool of candidates, with a target of achieving at least 50% representation from underrepresented communities.

The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com and us.greenhouse-mail.io.We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you.We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.

If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx

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About the job

Apply before

Jun 03, 2024

Posted on

Apr 04, 2024

Job type

Full Time

Experience level

Senior

Location requirements

Hiring timezones

United Kingdom +/- 0 hours

About Critical Mass

Learn more about Critical Mass and their company culture.

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Critical Mass is a team of inspired folks based in offices around the world, providing full-service digital capabilities for the greatest brands on Earth. Our secret sauce is our uncompromising design standards, our relentless focus on customers, and an ability to put powerful new technologies to work for our clients. We work with the best—Apple, Nike, Diageo, Airbnb, BMW, BNY Mellon, Johnson & Johnson, and many more—brands who strive for connected digital ecosystems and unparalleled experiences. We help them get there by gaining deep insight into their consumers and orchestrating data, AI, design, media, and tech stacks around human stories. We’re a global agency founded in Canada, but digital is our home. If you know us, then you know we’re a special, quirky place that attracts big talent and tiny egos. (We actually give out a “so f-n nice” award—lots of them). But just because we’re friendly doesn’t mean we’re not a force to be reckoned with. We’re driven. Relentless. And we live our values. We’re Critical Mass, but our friends call us CM

Employee benefits

Learn about the employee benefits and perks provided at Critical Mass.

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Learning & Development

Critical Mass invests in internal learning and development programs for employee growth.

Diversity & Inclusion

Critical Mass fosters diversity and inclusion through a dedicated board and 12 affinity groups.

Employee Discounts

Employees at Critical Mass enjoy enterprise-wide discounts, adding extra value to their benefits.

Compassionate & Sick Leave

Critical Mass offers compassionate leave and sick days to ensure employees can take time off when needed.

View Critical Mass's employee benefits
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Critical Mass

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