---
title: 'Senior Mobile Engineer (KMP) at Yazio'
canonical: 'https://feeny.ai/job/senior-mobile-engineer-kmp-yazio-berlin-wj04g4hzg5wy'
type: 'job'
last_seen: '2026-10-17'
---

# Senior Mobile Engineer (KMP) at Yazio

- **Company:** Yazio
- **Location:** Berlin, Germany
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-01-27
- **Last confirmed live:** 2026-10-17
- **Apply:** https://jobs.ashbyhq.com/yazio/e73a1b14-08a5-4691-8def-29d2480a0635

## Job description

## HEY THERE

At Yazio, our product squads are the engines that drive our mission: helping people lead healthier lives. We're looking for a product-minded Senior Mobile Engineer to join one of our core squads and build the features that empower millions of users on their wellness journey. As a key member of a cross-functional team, you'll partner closely with your Product Manager, Engineering Manager and Designer. You will be a vital voice in shaping our product, leveraging our Kotlin Multiplatform (KMP) stack to deliver elegant, high-impact solutions for both iOS and Android users. This role is 100% remote and open to candidates based in Germany, Spain, Portugal or the U.K.

## YOUR MISSION

Your mission is to translate user needs and product vision into robust, high-quality code that powers a world-class user experience. You will own the technical execution within the squad, living best practices and helping the entire team.

- Own Features End-to-End. You will take ideas from a technical design to a polished, deployed feature. You'll be responsible for writing clean, maintainable code, ensuring high test coverage and monitoring the impact of your work in production.
- Partner with Product and Design. You won't just be handed tickets. You'll be a key contributor to the "why," providing technical insights, weighing trade-offs and helping to shape a roadmap that is both ambitious and achievable.
- Champion Technical Excellence. You will be a steward of our codebase, helping to manage technical debt, improve performance and drive the adoption of modern practices within our Kotlin Multiplatform architecture.
- Elevate the Team Around You. You'll act as a mentor for other engineers, leading by example with thoughtful code reviews, improving team processes and sharing your knowledge to help everyone grow.

## YOUR PROFILE

We're looking for a seasoned engineer who is passionate about the craft but even more passionate about the impact their code has on users.

- Deep Expertise in Modern Mobile Development. You have significant experience building native mobile apps on Android (Kotlin, Jetpack Compose). Experience with iOS development (Swift, SwiftUI) is a plus, along with a willingness to expand ownership across both ecosystems. KMP experience is a big plus.
- A True Product Engineer. You are obsessed with the user experience and the "why" behind what you're building. You're comfortable with product metrics and are driven to see your work make a measurable impact.
- Pragmatic and Results-Oriented. You have high standards for code quality but also know when to make pragmatic trade-offs to ship value to users. You see technical debt as a portfolio to be managed, not a moral failing.
- A Collaborative Force Multiplier. You thrive in a team environment. You give and receive feedback graciously and believe that mentoring others and improving shared tools are essential parts of your role.
- Excellent Communicator. You can clearly articulate complex technical ideas to both technical and non-technical partners, ensuring everyone is aligned.
- Experience with Kotlin Multiplatform is a massive plus, but a strong foundation in native development and a passion for learning are most important.

## OUR CORE TECH STACK

We believe in Kotlin Multiplatform and use it heavily in our modularized monorepo. We share as much code as possible outside of the UI layer, while building the fully native UI using Compose on Android and SwiftUI on iOS.

- We use libraries like:
- kotlinx.coroutines
- kotlinx.serialization
- Ktor
- SQLDelight
- Metro for dependency injection.

WHY US?

- An exciting product with millions of users in over 150 countries, driven by our mission to transform the world through healthy eating
- A remote-first setup: work 100% from home, join a co-working space, or work abroad for several weeks per year
- 30 vacation days to relax and recharge, plus 5 child sick days if your little one needs you
- A focus-driven culture that values efficiency over long hours - no overtime expectations, and if it happens, you get that time back!
- A high-impact environment where your work drives real change - short decision-making processes and no micromanagement
- A team culture where ambition and balance go hand in hand, supported by strong connections - from our fully covered company retreat to team meetups and virtual coffee breaks
- Tools and support to do your best work: MacBook, monitor, and €1,000 annual learning budget, plus regular feedback and career development
- A truly international team with English as our company language and a shared commitment to growth and well-being - supported by Sunday Supplements and Nilo Health

## DIVERSITY AND INCLUSION

At Yazio, we believe that diversity fuels innovation. We are committed to fostering an inclusive environment where everyone, regardless of gender identity, race, religion, age, sexual orientation, or ability, feels valued and empowered. We celebrate different perspectives and actively encourage individuals from all backgrounds to apply.

READY TO JOIN US? Excited to take Yazio to the next level and help people worldwide lead healthier lives? We’d love to hear from you! Please send us:

- Your CV in English
- A few lines (or a short video if you prefer) about who you are and why you want to work at Yazio
- Any additional materials that showcase your work (e.g., LinkedIn profile, portfolio)

## About Yazio

## Company Overview
- **One-liner**: Yazio is a nutrition-focused mobile app that helps users track calories, macronutrients, and build healthy eating habits through a freemium subscription model.
- **Entity Type**: Private (Bootstrapped)
- **Headquarters**: Erfurt, Germany
- **Founded**: 2014
- **Founders**: Sebastian Weber & Florian Weißenstein

## Core Business
- **Primary industry**: Digital Health & Nutrition (Consumer Wellness)
- **Target customers**: B2C (individuals focused on weight loss, muscle building, or general healthy eating)
- **Mission**: "Create the most engaging nutrition experience. Turn healthy habits into a source of joy. Help people sustain positive change every day." [yazio.com](https://www.yazio.com/en/about-us)

## Products & Services
- **Yazio App (Free Version)**: A mobile app (iOS & Android) offering calorie and macronutrient tracking, a barcode scanner, basic food database, and activity tracking. Available in 20+ languages across 150+ countries. [yazio.com](https://www.yazio.com/en)
- **Yazio Pro (Subscription)**: Paid tier (3 or 12-month subscription) unlocking features including an innovative AI food scanner, smart food ratings, an ever-growing recipe database (3,000+ in-house recipes), detailed statistics and analysis, a variety of intermittent fasting trackers, and advanced meal planning. [yazio.com](https://www.yazio.com/en/about-us)
- **AI Food Scanner**: A feature added in June 2025 that uses artificial intelligence to identify food items and estimate nutritional content from a photo. [factsheet PDF](https://filecontent.yazio.com/press/factsheet-yazio-en.pdf)

## Market Standing
- **Valuation/Market Cap**: Not publicly available (private, bootstrapped company)
- **Total Funding**: Not publicly available (appears to be entirely bootstrapped; no external funding rounds found)
- **Key Metric**: Over **100 million total users** (as of May 2025), with a strong presence in 150+ countries. [factsheet PDF](https://filecontent.yazio.com/press/factsheet-yazio-en.pdf)
- **Notable Investors/Partners**: No external investors disclosed. The company is fully founded and owned by its co-founders.
- **Growth Signals**: 
  - Reached 100 million users in May 2025, up from 50 million in December 2020.
  - Team grew to 120+ employees in December 2025, with 100 employees reached in February 2025.
  - Launched AI food tracking feature in June 2025.
  - Completed a brand rebrand in October 2025.
  - Ranked #1 nutrition app in Europe as of 2019, maintaining a top-tier position.

## Competitive Advantages
- **Massive User Base & Data Moat**: With over 100 million users, the app has accumulated a vast database of recipes, nutritional profiles, and user preference data that is difficult for new entrants to replicate.
- **AI-Powered Innovation**: The recent addition of an AI food scanner positions the app at the cutting edge of consumer nutrition tech, differentiating it from simpler calorie counters.
- **Freemium Model with High Conversion Potential**: The free version serves as a powerful funnel, and the Pro subscription offers deep features (fasting trackers, extensive recipes) that drive strong retention.
- **Bootstrapped Independence**: Without external investor pressure, the company can focus on long-term product quality and user experience rather than short-term growth hacks.
- **In-House Content Engine**: A team dedicated to creating 3,000+ proprietary recipes ensures a consistent, high-quality, and unique content library that rivals competitor aggregations.

## Strategic Focus
- **AI Integration**: Deepening the use of artificial intelligence across the app (scanning, recommendations, analysis) to streamline user experience and enhance personalization. [factsheet PDF](https://filecontent.yazio.com/press/factsheet-yazio-en.pdf)
- **Global Expansion**: Continuing localization efforts to serve the 150+ countries already reached, with a focus on cultural customization of recipes and dietary tracking.
- **Engagement Over Fads**: Moving beyond simple weight loss to support sustainable healthy habits, building features for muscle building, general wellness, and long-term adherence.
- **Product Depth**: Expanding the Pro feature set to make the subscription more valuable, potentially adding more advanced health tracking integrations.

## Why Work Here
- **Remote-First Culture**: Yazio is a remote-first company with team members spread across Germany, Spain, Portugal, and the U.K. Core hours are only 11:00 a.m. to 3:00 p.m. CET daily. [yazio.com](https://www.yazio.com/en/jobs)
- **Global & Diverse Team**: A team of over 120 people representing 32 different nationalities. [factsheet PDF](https://filecontent.yazio.com/press/factsheet-yazio-en.pdf)
- **Strong Perks**: 
  - State-of-the-art tech equipment (MacBook, monitor, etc.)
  - Budget for a co-working space
  - Annual learning budget for personal and professional development
  - Annual 4-day company retreat (hiking, yoga, outdoor cooking) and team Department Days
  - No overtime culture (hours credited if overtime is needed)
  - Ability to work abroad from within the EU for up to 60 days.
- **Engineering & Culture Focus**: Tools include Slack, Google Meet, and Notion. Emphasis on proactive, written communication. Annual retreats, virtual lunches, and "Donut Dates" (random coffee pairings) help maintain team cohesion.
- **Career Growth**: A structured interview process (Trial Day), clear onboarding with two contacts (team lead + people manager), and a dynamic team environment where individual contributions are highly visible.

## Sources
1. [Yazio About Us](https://www.yazio.com/en/about-us)
2. [Yazio Jobs & Careers](https://www.yazio.com/en/jobs)
3. [Yazio Factsheet December 2025 (PDF)](https://filecontent.yazio.com/press/factsheet-yazio-en.pdf)
4. [Yazio Main Website](https://www.yazio.com/en)
5. [Built In - YAZIO GmbH Profile](https://builtin.com/company/yazio-gmbh)

## Other roles at Yazio

- [Performance Marketing Manager](https://feeny.ai/job/performance-marketing-manager-yazio-berlin-hc2t1gp2dybp) — Berlin, Germany
- [Product Analytics Team Lead](https://feeny.ai/job/product-analytics-team-lead-yazio-berlin-pmgt2nx5xqww) — Berlin, Germany
- [B2B Partnerships & Influencer Marketing Manager](https://feeny.ai/job/b2b-partnerships-influencer-marketing-manager-yazio-berlin-94zk498aeg89) — Berlin, Germany
- [(Senior) Controller](https://feeny.ai/job/senior-controller-yazio-berlin-mxj05ccjmc52) — Berlin, Germany
- [Senior Mobile Engineer (Food Tracking)](https://feeny.ai/job/senior-mobile-engineer-food-tracking-yazio-berlin-tpmzm9zyja0k) — Berlin, Germany