Senior Android Developer

Location: London, UK
Salary: £65,000-£75,000 + Equity

About the role

Kalido exists to help create a world where people and organizations can maximize potential through a global community of valued connections and opportunities. We passionately problem solve new ways to do this, no matter how difficult the challenge. Everyone on our team is a true product owner, responsible for ensuring excellence. We move fast (but thoughtfully), and are looking for a talented and impact-oriented Senior Android Developer to join us.

In this role, you will be responsible for: leading our Android development team; developing new features and maintaining the Android version of Kalido (written in Kotlin and Java); and ensuring that it is secure, performant, easily deployable, respectful of device limitations, reasonably backward-compatible, cost-effective, and fit for purpose. In doing so, you will shape the company, and our collective ability to impact the world.

As part of a startup, your responsibilities will vary, but on a day to day basis, you will:

Build the product and manage the team

  • Collaborate with management, design, and other development teams to define, design, and build new functionality as required, using clean and efficient code
  • Design, build and refactor our Android architecture as we evolve, with maintainability and efficient abstraction in mind
  • Verify, test and deploy new builds
  • Inspire and lead junior developers, ensuring their growth
  • Mentor other developers to help them grow, and to ensure our design and development efforts and ethos remain aligned

Maintain the app

  • Troubleshoot, debug and enhance the existing codebase, driving towards a continuously more performant, more maintainable, higher quality, and responsive experience
  • Proactively alert others to technical debt, and manage plans to address it without unreasonably compromising delivery timelines

Plan for the future

  • Act as a product owner, with zero tolerance for instability, a zeal for improving the development process and user experience, a desire to build designer-developer relationships that balance constraints on both sides, and a vision for what Kalido could do in the future
  • Ensure you are on top of changes to Google Play Store submission guidelines, Android Studio behaviours, Kotlin and other relevant software framework versions, Android features, and any other relevant matters, so that we are always able to release quickly.
  • Propose, evaluate, select, and integrate new technologies when needed
  • Proactively suggest changes to balance cost, security, performance, and deployability

What we are looking for

We value inclusion, impact, transparency, generosity, and teamwork. You can read more about our values and what they mean to us. We are looking for someone who: shares our philosophy; is capable and excited about the role; strives for personal and professional excellence; and wants to make a meaningful difference through their work.

This opportunity is for you if you are:

  • Experienced (have 3+ years experience of commercial Android development), with a strong analytical mind and an ethical approach to professional development
  • Fluent in Kotlin and familiar with multiple other programming languages (especially Java) and software frameworks, with a strong belief in the importance of testing, and comfort with version controlled development
  • Preferably supported by a portfolio of published Android apps and open source contributions
  • Knowledgeable about UX and UI, with a deep understanding of design patterns commonly used in Android development
  • A leader, experienced in managing small teams of developers through the entire software development lifecycle, in maintaining and continually improving a lean software development process, and in delivering high quality code reviews, with a toolbelt of best practices for professional software development
  • Passionate about extracting every last ounce of performance from Android (across different phone models), and ensuring maximum benefits available from the full capabilities of the frameworks offered by Google and various third party service providers

How to apply

If being a Senior Android Developer at Kalido sounds like something that leverages your skills and ignites your passion, we want to get to know you. Drop us an email with your CV (including a link to your portfolio and relevant repositories) and a cover letter, addressed to Martyna at, or apply online today: