Mid-Level Backend Developer
🌱 Genki means "healthy, energetic, and full of spirit". That's us.
🚀 We're a fully remote, profitable startup of about 25 people, five years in and growing steadily.
🌍 We build tailored health insurance for long-term travelers like digital nomads, serving over 75,000 people in 200 countries.
💚 Our vision is to help them stay healthy wherever they go, far beyond insurance.
We're looking for a Mid-Level Backend Developer to help build and evolve the core system that powers our products and operations. You'll join as the second developer in our backend team, reporting to our Lead Backend Developer.
Our backend runs on Kotlin with a custom framework built around event sourcing. It's not yet fully documented, so you'll need to be comfortable reading code, asking questions, and finding your way through a system that's still being shaped. You'll build new features, improve testability and reliability, and help evolve the architecture over time.
The product is complex and spans multiple domains. You'll need to build deep understanding quickly and be comfortable making decisions with incomplete information.
We're moving fast, increasingly with AI-agentic development tools. You should have some hands-on experience with these tools and a genuine drive to go deeper.
Show us what you've got. Send us a link to your GitHub profile, code samples, prompts, a vibe-coded job application, or whatever expresses your experience best!
Experience
- You've worked on larger backend systems in production and understand the complexity they bring.
- You've worked in complex product domains and can ramp up quickly on business logic that isn't always obvious.
- You're comfortable with event sourcing, event-driven architecture, or similar patterns.
- You care about code quality: readable code, meaningful tests, and clean APIs.
- You have some experience with AI-agentic development tools (Claude Code, Codex, or similar) and want to go deeper.
Our current tech stack
- Language: Kotlin with coroutines
- Framework: Custom, built around event sourcing
- Billing: Stripe
- Infrastructure: Heroku (migrating to Railway)
- AI-agentic development: Claude Code with custom plugin
- APIs: GraphQL
Working style
- You pay close attention to the details and take pride in getting them right.
- You're curious and self-driven. You dig into unfamiliar code, ask good questions, and figure things out.
- You'd rather understand why something works than just make it work.
- You're comfortable making decisions when not all the information is there yet.
- You've worked in a startup or scaleup and know what that pace and ambiguity feels like.
- You thrive in a fully remote, async-first team and know how to communicate clearly without meetings for everything.
- You're as open to different ideas, opinions, and to people with different cultures, backgrounds, and interests as we are.
💰 Up to 5,000 EUR/month (depending on experience) with employee equity participation through a vesting program
🏝 Fully remote, from anywhere in the world & live as a digital nomad if you want to (the country list above are just examples)
🕗 Flexible hours, startup atmosphere
🌍 Most of the team is in Europe and Southeast Asia, with a few hours of daily overlap around German business hours
💻 Company-issued and managed MacBook, plus a desk in your favorite co-working space
✈️ 25 days paid annual leave
🤝 Regular team off-sites to connect in person
Similar roles
PowerBI Developer / Data Visualization Specialist
BlackStone eIT·Dubai, United Arab Emirates
Key Responsibilities * Dashboard Development: Design and build user-friendly Power BI reports, dashboards, and visual elements. * Data Modeling: Clean, shape, and model raw data using Power Query and data modeling best practices. * DAX Calculations: Write Data Analysis Expressions (DAX) for advanced aggregate, date, logical, and table calculations. * Data Integration: Connect Power BI securely to various data sources…
- Full-time
- Green Visa — self-sponsored, no tie
Software Engineer - AI Legal Risk Systems
LEAP Legal Software·Sydney, Australia
About LEAP LEAP is the leading provider of Legal Practice Management Solutions in the world and is part of ATI – one of the largest international LegalTech companies. For more than 30 years, our curiosity and commitment to continual improvement has kept us reimagining productivity tools for lawyers and their staff to support our guiding purpose, to ‘Help lawyers who…
- Hybrid
- Full-time
- Skilled Independent 189 — PR, no sponsor
Rezeptionsleiter (m/w/d)
Parkhotel an der Therme in Bad Krozingen·Bad Krozingen, Germany
Thürachstraße 3 - 5 79189 Bad Krozingen www.parkhotel-bk.de Hans - Jürgen Sellent [email protected] Tel. 0172 3000745 Anstellungsart: Vollzeit Aufgaben abwechslungsreiche Arbeit, Anleitung des Rezeptionsteams Erstellung von Angeboten für Reisegruppen Kontrolle und Organisation von Gruppenreservierungen Erstellung von Angebotspaketen für Individualreisende Rechnungserstellung und Rechnungskontrolle Email Korrespondenz (Deutsch/Englisch/Französisch) Beantwortung und Pflege von Bewertungen P…
- Full-time
- Blue Card — tied; settle 21–33mo
Senior Account Executive
Black Forest Labs·Freiburg, Germany
THIS ROLE CAN BE OFFICE-BASED IN FREIBURG, GERMANY OR REMOTE-FIRST, WITH A REQUIREMENT TO BE IN THE OFFICE ONE FULL WEEK PER MONTH. ABOUT BLACK FOREST LABS We’re the team behind Latent Diffusion, Stable Diffusion, and FLUX—foundational technologies that changed how the world creates images and video. We’re creating the generative models that power how people make images and video—tools…
- On-site
- Full-time
- Blue Card — tied; settle 21–33mo
Senior Fullstack Engineer (m/w/d) – E-Commerce
ABRIO GmbH·Germany
Du entwickelst seit mehreren Jahren moderne Webanwendungen und möchtest in anspruchsvollen Kundenprojekten mehr Verantwortung übernehmen, ohne dich vom operativen Coding zu entfernen? Als Senior Fullstack Engineer (m/w/d) – E-Commerce bei ABRIO entwickelst du performante und skalierbare E-Commerce-Lösungen für führende Marken aus D2C, B2C und B2B. Dabei setzt du komplexe Anforderungen eigenständig um, bringst deine Erfahrung in technische Konzepte ein und…
- On-site
- Full-time
- Blue Card — tied; settle 21–33mo
Senior Fullstack Developer (m/w/d) – Shopify & Digital Commerce
ABRIO GmbH·Germany
Du entwickelst seit mehreren Jahren moderne Webanwendungen und möchtest in anspruchsvollen Kundenprojekten mehr Verantwortung übernehmen, ohne dich vom operativen Coding zu entfernen? Als Senior Fullstack Developer (m/w/d) – Shopify & Digital Commerce bei ABRIO entwickelst du performante und skalierbare E-Commerce-Lösungen für führende Marken aus D2C, B2C und B2B. Dabei setzt du komplexe Anforderungen eigenständig um, bringst deine Erfahrung in technische…
- On-site
- Full-time
- Blue Card — tied; settle 21–33mo
Fullstack Developer – E-Commerce & Shopify (m/w/d)
ABRIO GmbH·Germany
Frankfurt am Main | Hybrid: 2–3 Tage Büro/Woche | Vollzeit | Deutsch C1/C2 erforderlich Du hast Erfahrung im Frontend Development und willst moderne E-Commerce-Lösungen entwickeln, die wirklich genutzt werden? Bei ABRIO baust und optimierst du performante Shopify-Frontends für anspruchsvolle D2C-, B2C- und B2B-Marken – mit React, TypeScript und viel Raum für eigene Ideen. Shopify-Erfahrung ist ein Plus, aber kein Muss.…
- On-site
- Full-time
- Blue Card — tied; settle 21–33mo
Talent Acquisition Specialist (m/w/d)
cbs Corporate Business Solutions GmbH·Heidelberg, Germany
Wir sind die Berater der Weltmarktführer: Hochmotivierte Expertinnen und Experten, die als erfolgreiches Team digitale End-to-End-Geschäftsprozesslösungen vorantreiben. Gemeinsam stärken wir die Zukunft der beeindruckendsten Unternehmen der Welt aus Maschinen- und Anlagenbau, Automotive, Life Science, Pharma und Chemie, mit denen wir viel gemeinsam haben. Unser ausgezeichneter Ruf bei Hidden Champions öffnet Dir die Türen für anspruchsvolle Projekte mit einzigartigen Gestaltungsmöglichkeiten. Werde…
- On-site
- Full-time
- Blue Card — tied; settle 21–33mo
