Mobile Application Engineer (+ Equity) at Seamflow in London

Mobile Application Engineer (+ Equity) at Seamflow in London

London Full-Time 50000 - 70000 £ / year (est.) No working from home possible
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At a Glance

  • Tasks: Design and build mobile workflows using React Native, integrating AI features for real-world applications.
  • Company: Seamflow, a dynamic London startup backed by top-tier investors like Coinbase and Spotify.
  • Benefits: Equity options, competitive salary, and a chance to work in a high-autonomy environment.
  • Other info: Opportunity for true ownership and career growth in a fast-paced startup.
  • Why this job: Join a world-class team and make a real impact in industries like aerospace and healthcare.
  • Qualifications: Experience with React Native, TypeScript, and a passion for building offline-first applications.

The predicted salary is between 50000 - 70000 £ per year.

Seamflow.com is a London-based startup that raised an oversubscribed $4.5M seed round from Tier‑1 investors like Coinbase, Reddit, Klarna, and Spotify to modernize manual systems in aerospace, healthcare, and energy.

You will design and build end-to-end mobile workflows that translate complex real‑world processes into intuitive software. Embedded with customers in the field, you’ll ship production‑grade React Native apps featuring offline‑first capabilities and AI integrations. This high‑ownership role involves moving from customer calls to deployment, solving critical bottlenecks in physical industries.

Location: London, UK

Why this role is remarkable:

  • Join a world‑class team featuring former unicorn founding engineers and talent from X, Google, Amazon, and Yandex in a high‑trust, high‑autonomy environment.
  • The company is backed by an oversubscribed $4.5M seed round from legendary investors including Coinbase, Reddit, Klarna, and Spotify, providing a strong runway for growth.
  • Experience true ownership by embedding with users in industries like aerospace and healthcare to build mobile‑first tools that let physical‑world work move at software speed.

What You Will Do:

  • Ship production‑grade features from day one, owning the entire lifecycle from initial customer specification and UX polish to final deployment.
  • Develop sophisticated offline‑first mobile workflows using React Native and TypeScript, integrating native Swift/Kotlin modules for camera and sensors when necessary.
  • Integrate advanced AI‑powered features, including LLMs and agents, directly into mobile workflows to streamline messy real‑world field processes for industrial workers.

The ideal candidate:

  • Proven experience shipping cross‑platform apps with React Native and TypeScript, with the technical depth to drop into native iOS and Android codebases.
  • Strong background in building offline‑first applications that manage local persistence, conflict resolution, and reliable data synchronization in environments with unreliable connectivity.
  • Entrepreneurial mindset, ideally with early‑stage or founder experience, and a willingness to work directly with non‑technical domain experts to define product requirements.

Mobile Application Engineer (+ Equity) at Seamflow in London employer: Jack & Jill

At Jack & Jill, we pride ourselves on being an exceptional employer that fosters a dynamic and innovative work culture. Our team enjoys a range of benefits including flexible working arrangements, professional development opportunities, and a collaborative environment that encourages creativity and growth. Located in a vibrant area, we offer unique advantages such as access to cutting-edge technology and the chance to work with industry leaders in AI-driven marketing strategies.

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Contact Details:

Jack & Jill Recruitment Team

We think you need these skills to ace Mobile Application Engineer (+ Equity) at Seamflow in London

React Native
TypeScript
iOS Development
Android Development
Offline-First Application Development
AI Integration
UX Design