Head of Backend Engineering – Platform Services

Role Overview

• You lead engineering teams of 5+ people developing innovative web applications for the mobility market of tomorrow.
• You take on a leadership role while remaining deeply involved in technology, architecture and hands-on implementation.
• You work closely with other engineering leads and the VP of Engineering to develop and successfully implement a shared technical vision for ioki.
• As part of the Technology & Engineering leadership team, you actively contribute to strategic direction.
• You take responsibility for existing and future products in ioki's portfolio.
• You bring experience in architecting multi-product platforms and drive complex deep integrations with third-party systems forward reliably.
• Engineering teams at ioki work with a high degree of autonomy — you create the conditions that enable this.
• You manage cross-team processes and interfaces to enable efficient, smooth collaboration.
• We have high quality standards for software development. You help teams maintain these standards and have the experience to assess them competently.
• Together with your team you make well-founded technical decisions on architecture and implementation.
• You maintain and improve software development standards, tools and processes and promote your team's continuous growth in these areas.
• You are the central interface to stakeholders outside the dev teams and work closely with the teams to take the continuous improvement of the apps — through frequent releases — to the next level.
• You are responsible for the development of your team — both in terms of individual coaching and staffing decisions during growth.
• Helping others grow as engineers and as people is a genuine passion for you.

Requirements

• You have many years of deep experience with Ruby on Rails and related technologies and concepts (Postgres, Redis, JavaScript, REST APIs, Docker, Git, etc.) and have independently planned and delivered complex Rails projects end-to-end.
• You have several years of proven leadership experience in agile development teams of at least 5 people and have demonstrated an ability to lead teams to top performance — both technically and personally.
• You enjoy and have proven experience in building, maintaining and evolving complex web applications.
• You know what it takes to build maintainable, stable and well-tested systems — and can inspire others to do the same.
• You actively contribute, have organizational talent and create a trusting environment in which your team and you can grow together.
• You work independently, goal
• and result-oriented, take responsibility and maintain a high standard of quality in your own work.
• You have business-fluent German and English skills, both written and spoken — English is the company language in our international team.

Tech Stack

• Docker
• JavaScript
• Postgres
• Redis
• Ruby
• Ruby on Rails

Benefits

• Flexibility & autonomy: Choose your core working hours and decide where you're most productive — primarily from home, in our modern office, or a healthy mix of both.
• Comprehensive mobility benefits: A fully covered public transport ticket (Deutschland-Ticket, job ticket or BahnCard 100).
• Company bike leasing (JobRad).
• Wellness & lifestyle budget: You receive a tax-free budget of €50 per month that you can use as you wish — for fitness memberships (GymPass), streaming services (Netflix, etc.) or everyday expenses like groceries.
• Investment in your future: We support your development with an annual training budget for conferences, courses and personal skill building.
• Security for tomorrow: Secure your future with our company pension plan, to which we make a contribution on your behalf.
• Perfect office location: Our modern, centrally located Frankfurt office is designed for collaboration and is excellently connected to public transport.
• Catering: A regular meal subsidy.
• Our culture in practice: Become part of a passionate, interdisciplinary team. We don't just talk about work-life balance, diversity and agile collaboration — we actively live them in our daily work.