London, England, United Kingdom Hybrid Employment

Critical Mass is hiring a Technology Lead

About the Role

Critical Mass is hiring a Technology Lead to bridge hands-on technical excellence with strategic leadership. You will be driven by technical vision, scoping complex projects, contributing to AI initiatives, and guiding teams to deliver robust digital experiences.

What You'll Do

  • Lead scoping and architecture of technical solutions, balancing 60% leadership with 40% hands-on coding.
  • Provide hands-on frontend development support in React and TypeScript, overseeing development and leading code reviews.
  • Champion and contribute to AI initiatives, building generative AI assistants and intelligent agents.
  • Build and iterate on proofs of concept to validate technical feasibility and creative concepts.
  • Mentor and guide developers, fostering a culture of quality and continuous improvement.
  • Collaborate iteratively with the Creative team, translating briefs into robust technical solutions.
  • Partner directly with clients on proposals, technical discussions, and solution design.
  • Oversee multiple concurrent projects, maintaining standards across the portfolio.
  • Work with multiple technologies—web, mobile native, game engines, and full-stack platforms—to deliver production-ready solutions.
  • Contribute innovative ideas that introduce novel technology approaches to creative challenges.
  • Stay current with emerging technologies and AI advancements, rapidly learning new tools.

What We're Looking For

  • 3+ years experience in technology leadership (Tech Lead or comparable role).
  • Exceptional proficiency in TypeScript, React, HTML, and CSS.
  • Strong understanding of large-scale system architecture and infrastructure considerations.
  • Proven experience collaborating with Creative teams in an agency or fast-paced environment.
  • Agency experience and comfort with direct client interaction on technical proposals.
  • Experience managing development and delivery of commercial websites and digital experiences.
  • Familiarity with website operations on high-traffic platforms and scalability.
  • Solid understanding of CI/CD tools and development pipelines.
  • Proficiency with the Atlassian suite (JIRA, GitHub, Confluence).
  • Strong problem-solving with meticulous attention to detail.
  • Natural leadership instincts and ability to mentor others.
  • Proven ability to balance strategic thinking with hands-on technical contribution.

Nice to Have

  • Experience with Python or similar languages, particularly in context of AI/ML applications.

Technical Stack

  • TypeScript
  • React
  • HTML
  • CSS
  • Python
  • AI/ML

Team & Environment

You will collaborate closely with Creative, Project Delivery, QA, and DevOps team members.

Work Mode

This role operates on a hybrid work model.

Critical Mass is an equal opportunity employer.

Required Skills
TypeScriptReactHTMLCSSPythonAI/MLSystem ArchitectureClient InteractionTeam LeadershipProject Management
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About company
Job Details
Department Software Development
Category management
Posted 14 days ago