Senior iOS Developer (f/m/d)

Your Mission

Join Us at the Foundation of Something Big!

Are you passionate about shaping the future of clean energy?

This is your chance to build something from scratch. If you’re looking for a dynamic, high-impact role where your ideas truly matter, we invite you to be one of our first pioneers.

Your Responsibilities

• Design, develop, and optimize iOS architecture for our core products, ensuring high-performance and reliable delivery.
• Lead the technical solution design of complex functional modules (such as high-performance UI rendering and advanced animations).
• Resolve complex issues such as memory leaks, performance bottlenecks, and crashes to enhance stability and user experience.
• Drive technical advancements within the team, including research on new technologies and setting coding standards.
• Collaborate closely with product, design, and backend teams, participate in requirements reviews, and provide technical feedback.

Your Profile

• Bachelor’s degree or above in computer science or related fields.
• More than 5 years of experience in iOS development.
• Fluent in English; proficiency in Chinese or additional European languages is a strong advantage.
• Expertise in Objective-C/Swift, including understanding of Runtime, RunLoop, multithreading, Blocks, persistence, networking, and memory management.
• Skilled with third-party frameworks, code management, project management, and CI/CD tools.
• Strong coding practices with a solid grasp of data structures and algorithms.
• Experience leading the creation of general technical solutions such as high-performance architecture, APM, modularization, stability governance, and optimization.
• Strong analytical and problem-solving abilities; passionate about new technologies and industry trends.
• Proactive, excellent communicator, strong teamwork skills, and dedicated to delivering outstanding user experiences.

Preferred Qualifications

• Experience with the technical architecture of large-scale applications.
• Knowledge of cross-platform development tools (e.g., Flutter).
• Additional expertise in engineering practice, performance tuning, or modular system architecture.
• Active contributions to GitHub, technical blogs, or open-source projects.

Why Join Us?

• Be a part of the clean energy transformation at the intersection of technology and sustainability.
• Collaborate with a diverse and multinational team.
• Contribute to a flat, fast-growing, and innovative company culture.
• Play a direct role in shaping the future of energy and making a difference for a better world.

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Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation

Posted Nov 01, 2026

Posted Nov 01, 2026