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(Senior) Mobile App Engineer (m/w/d)

Galvany Tactics GMBH

Galvany Tactics GMBH

Berlin, Germany
Posted on Feb 20, 2026

Location

Berlin

Employment Type

Full time

Location Type

On-site

Department

Tech & Product

At GALVANY, our goal is to make climate-neutral living a reality for everyone. We focus on execution – developing concrete, smart solutions and making heat pumps, battery storage, and smart metering easy to access, reliable, and affordable. GALVANY-Tech drives the energy transition through software. We're building an AI-based Operating System for sales, planning, installation and operation of heat pumps and integrated energy systems – from single-family homes to multi-unit buildings, and across our Energy Community as a Virtual Power Plant.

We are a profitable green-tech startup and believe that sustainable impact and long-term growth are only possible when grounded in a healthy business model. Driven by customer value, clarity, and responsibility, we stand for high-quality heating solutions and an environment where people take responsibility and drive lasting impact.

The Role

As a Mobile App Engineer at GALVANY, you'll build and maintain the mobile applications that put our AI-based Operating System in users' hands. You'll create intuitive, performant experiences for installers in the field and homeowners managing their energy systems – with a strong emphasis on design quality and real-world usability.

Responsibilities:

  • Develop cross-platform mobile apps using Flutter with a focus on performance and user experience.

  • Collaborate closely with Design to translate Figma specs into polished, native-feeling implementations.

  • Integrate with backend APIs and ensure reliable data synchronization, including offline scenarios.

  • Optimize for mobile constraints: battery, network, permissions, and app store guidelines.

  • Leverage AI tools to accelerate development with quick-prototypes and explore innovative mobile solutions.

  • Take ownership of features from implementation through deployment and iteration.

Tech Stack: Mobile with Flutter; Backend with GoLang and Laravel; Frontend with React, Tailwind, and Shadcn; General tools including Azure, GitHub, Linear, Notion.

Requirements

  • Experience. 4+ years of experience in high-performance environments (e.g. top-tier consulting, fast-scaling startups, or similar).

  • Track Record. Proven end-to-end responsibility in mobile app development. From ideation to release.

  • Background. Strong background in relevant fields, e.g. Computer Science, Software Engineering, or similar.

  • Technical Skills. Strong coding skills with proficiency in Flutter/Dart. Eye for UI detail and experience implementing designs with high fidelity. Fluent in spec-driven, AI-assisted development (e.g. Claude Code).

  • Mindset. Self-driven problem-solving mindset – no need for micromanagement or specific tickets.

  • Technical Aptitude. Technical mindset with a passion for understanding systems, data flows, and integrations, coupled with enthusiasm for continuous learning and problem solving.

  • Language. Fluent in English; German is a plus.

Skills and Qualities That Are Important to US

  • Outcome-Led. You focus on value over volume. You embrace iteration, adapt quickly to new information, and prioritize what moves the needle for business and user.

  • Systems Thinker. You see the bigger picture. You understand how your work connects to the wider ecosystem – ensuring features contribute to a cohesive, scalable whole.

  • Pragmatic. You choose the simplest effective path to solve problems – especially by leveraging AI tools.

  • Customer Champion. You keep the end-user central in all decisions. You seek direct exposure to how customers experience the product.

  • UI Craft & Polish. You hold a high bar for visual quality, interaction details, and performance. You sweat the small stuff that users notice.

  • Design Partner. You collaborate closely with Design. You translate intent to implementation and push back constructively on feasibility.

Benefits

  • Strong Growth & High Impact. A unique opportunity to join during a hypergrowth phase and actively contribute to company success.

  • Compensation. Competitive salary and flexible perks (sports, mobility, learning) tailored to your needs.

  • Real-World Impact. Your work drives decarbonization – measurable in CO₂ savings, energy efficiency (kWh), and cost reductions (€).

  • Office. Prime location in Berlin Charlottenburg, regular company events and all-hands. We value in-person collaboration and connection, while partial remote work remains an option.

  • No Corporate Theater. Skip endless alignment meetings, politics and waiting for permission. You talk to the people who matter and ship.