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- Tasks: Lead mobile engineering efforts and migrate to Kotlin Multiplatform while reducing waste.
- Company: Join a founder-led climate tech startup revolutionising reusable packaging.
- Benefits: Competitive salary, equity options, and the chance to make a real environmental impact.
- Other info: Dynamic startup environment with opportunities for growth and innovation.
- Why this job: Work with a Forbes 30 Under 30 founder on sustainable tech that matters.
- Qualifications: 1-2 years of mobile experience, Kotlin skills, and a passion for sustainability.
The predicted salary is between 40000 - 45000 £ per year.
Join a mission‑driven team replacing single‑use packaging with IoT and AI technology. You will lead mobile engineering efforts, owning the migration to Kotlin Multiplatform while shipping features that have already prevented 1.6 million pieces of waste. This is a high‑impact role working directly with the technical lead to build sustainable infrastructure.
Location: London, UK
Why this role is remarkable:
- Work at the forefront of sustainability with a Forbes 30 Under 30 founder on a product that has already scaled to 50+ sites and major enterprise clients like BT and the NHS.
- Gain true ownership of the mobile roadmap, including a complete migration to a unified Kotlin Multiplatform codebase and integration with Apple/Google Wallets.
- Receive meaningful early‑stage equity in a fast‑growing startup where your engineering decisions directly reduce environmental waste at a massive scale.
What You Will Do:
- Lead the development and maintenance of consumer and client‑facing applications, specifically driving the transition from native apps to a unified KMP architecture.
- Build and integrate lightweight web applications with digital wallets to streamline container tracking and improve the user experience for reuse.
- Collaborate across the stack by contributing to PHP/Laravel backend services and occasionally supporting Python‑based software on Linux smart bin hardware.
The ideal candidate:
- 1‑2 years of professional mobile experience with production‑level Kotlin skills and a strong foundation in native Android development.
- Practical experience or deep technical enthusiasm for Kotlin Multiplatform (KMP), with the ability to manage iOS frameworks and SwiftUI integrations.
- A versatile, startup‑ready mindset comfortable exploring REST APIs, PHP, or Python to solve problems across the entire product ecosystem.
Mobile Software Engineer (£40k-£45k + Equity) at founder-led climate tech startup in London employer: Jack & Jill
Contact Detail:
Jack & Jill Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Mobile Software Engineer (£40k-£45k + Equity) at founder-led climate tech startup in London
✨Tip Number 1
Network like a pro! Reach out to people in the climate tech space, especially those who work at startups. Use LinkedIn to connect and engage with them; you never know who might have a lead on that Mobile Software Engineer role.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your mobile projects, especially any work with Kotlin or IoT. This will give potential employers a taste of what you can do and set you apart from the crowd.
✨Tip Number 3
Prepare for interviews by brushing up on your technical knowledge and understanding the company's mission. Be ready to discuss how your experience aligns with their goals in sustainability and tech innovation.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who are genuinely interested in joining our mission-driven team.
We think you need these skills to ace Mobile Software Engineer (£40k-£45k + Equity) at founder-led climate tech startup in London
Some tips for your application 🫡
Show Your Passion for Sustainability: When writing your application, let your enthusiasm for climate tech shine through! We want to see how your values align with our mission to reduce waste and promote sustainability. Share any relevant experiences or projects that highlight your commitment to this cause.
Highlight Your Technical Skills: Make sure to showcase your mobile development skills, especially in Kotlin and any experience with Kotlin Multiplatform. We’re looking for someone who can hit the ground running, so don’t hold back on detailing your technical expertise and any projects you've worked on that demonstrate your capabilities.
Tailor Your Application: Take a moment to customise your application for this specific role. Mention how your background fits with the responsibilities outlined in the job description, like leading mobile engineering efforts or integrating with digital wallets. This shows us you’ve done your homework and are genuinely interested in the position.
Apply Through Our Website: We encourage you to apply directly through our website for a smoother process. It helps us keep track of applications better and ensures you don’t miss out on any important updates. Plus, it’s super easy to do!
How to prepare for a job interview at Jack & Jill
✨Know Your Kotlin Inside Out
Make sure you brush up on your Kotlin skills before the interview. Since this role involves migrating to Kotlin Multiplatform, be prepared to discuss your experience with Kotlin and any projects you've worked on that showcase your expertise.
✨Show Your Passion for Sustainability
This startup is all about making a positive impact on the environment. Be ready to share why sustainability matters to you and how you see technology playing a role in reducing waste. A genuine passion can set you apart from other candidates.
✨Prepare for Technical Questions
Expect some technical questions related to mobile development and the transition to KMP. Brush up on your knowledge of iOS frameworks, SwiftUI integrations, and REST APIs. Practising coding challenges or discussing past projects can help you feel more confident.
✨Demonstrate Your Startup Mindset
Startups thrive on versatility and adaptability. Be ready to discuss how you've tackled challenges in previous roles and how you can contribute to a fast-paced environment. Highlight any experience you have with cross-functional collaboration or problem-solving across different tech stacks.