Team Lead Engineering - Backend (f/m/d)

suena energy

INTRO Hamburg Hybrid (2–3 days/week onsite) | 70.000 - 85.000 € p.a. (40 hrs / full time) | 30 Days Vacation | English B2 | German C1 Are you passionate about building the technical backbone of the energy transition? Join suena energy as Senior Backend Engineer (f/m/x) and become a founding member of our newly formed Platform team. You'll help design and build the API and integration layer that connects our trading, analytics, and optimization systems — and in doing so, directly shape how clean energy is managed across European power markets. suena energy is a green tech startup specializing in algorithmic energy trading for battery storage systems and renewables. Our vision: a world where clean energy is used reliably, economically, and intelligently. With our AI-based optimization and trading software, we maximize the revenues of operators of large-scale energy storage and renewable assets on short-term electricity and balancing markets - while simultaneously minimizing their risks. We're a team of 50+ people, combining a warm, supportive culture with real startup drive. Following our successful Series A, we're now building a dedicated Platform team from scratch. Quick Check: Is this your kind of engineering challenge? * Tech Stack: Python (Django/FastAPI), PostgreSQL/TimescaleDB, Redis, Celery, Docker, AWS, GitLab CI/CD, Sentry, Grafana * Your Focus: API design & architecture, backend integrations, data flows, system reliability and scalability * Team: Small, newly formed platform squad — you'll work closely with the Platform Lead, with strong support from our CTO in the early phase * Product: Real-time energy trading platform — high complexity, data-heavy, ML-integrated * Who thrives here: Engineers who think in systems, take ownership, and are energized by building things that actually matter * Must-haves: 5+ years backend experience, solid API & architecture background, Python, cloud deployment, German C1 * Dealbreakers: No API/architecture experience, pure CRUD background, no interest in complex distributed systems YOUR MISSION * Design and build scalable, reliable APIs and backend integrations that connect trading, analytics, data science, and forecasting systems * Drive the architecture of suena's platform layer — from initial design decisions to production * Own data flows and backend automations across the platform * Collaborate closely with the Platform Lead, CTO, and cross-functional teams (trading, data science, modelling) to translate complex domain requirements into robust technical solutions * Improve and extend existing systems while keeping a clear eye on reliability, security, and performance * Contribute to technical standards, code reviews, and engineering practices as the team grows YOUR PROFILE * 5+ years of backend engineering experience, with a strong focus on API design and system architecture * Solid Python skills (Django and/or FastAPI); hands-on experience with PostgreSQL/TimescaleDB is a plus * Experience with distributed/cloud-based architectures (AWS preferred), Docker, CI/CD, async workflows (Celery, Redis) * You think beyond the ticket — you understand how systems connect and can make principled architecture decisions * Security-minded: authentication, authorization, zero-downtime deployments are familiar territory * Comfortable working across greenfield projects and legacy systems * German C1 is required for this role — we work closely with German-speaking external API partners and system integrators, and clear, direct communication in German is essential for this * English B2/C1 for internal collaboration * Nice to have: Experience or genuine curiosity about energy markets, trading systems, or related domains (finance, IoT). The domain is complex — enthusiasm to learn it matters. WHY US? * Shape the Future: Contribute to the energy transition by working on sustainable energy solutions in a growing market environment. * Connecting & Co-Creating: Strategy off-sites and onsite weeks for real collaboration and shared ideas. * Work Your Way: Home office and flexible hours – you know what works best for you and your team. * Team Spirit: Yoga, shared lunches, after-work fun – we support each other and keep the vibe strong, even when it’s busy. * Fair & Transparent: Clear structures, democratic decisions, and a feedback culture where your voice counts. * Body & Mind: Urban Sports Club membership, wellbeing check-ins, and mental health support – your energy matters. * New Office Vibes: 10th-floor office with rooftop terrace, canteen, great views, ergonomic desks, hardware of your choice, and pet-friendly! * Sustainable Extras: Deutschlandticket, FutureBens, and more – supporting your mobility and future. WHAT ELSE? A note on applications As part of your application, we'd love to see a Python project you're genuinely proud of — production code, a side project, a study case, anything goes. It doesn't need to be polished. We'll use it as the basis for a technical conversation: what decisions did you make, why, what would you do differently? Send us the link of your repository. Be sure we have access. If you don't have something ready to share, no problem — we'll send you a small, focused task instead. Not quite senior level yet, but this role sounds like the direction you're heading? Apply anyway and let us know — we're also building out the junior side of the team. We look forward to receiving your application, earliest start is as soon as possible. If you have any questions, feel free to reach out - your contact is Kathi (Interim Talent Partner). You’ll hear back from us within 5 working days of your application. We value your time and want to make the process as transparent as possible. Once we receive your application, we’ll send you a confirmation email outlining the next steps and what you can expect from our interview process. We can’t wait to meet you! suena energy is an equal opportunity employer. We celebrate diversity and reject any form of discrimination. It is important to us to create an inclusive environment for all our team members. We want to particularly emphasize that our call for applicants is addressed to all genders. We welcome applications from people with disabilities.

ParshipMeet Group

INHALTE DER STELLENBESCHREIBUNG Als Lead Engineering (all genders) für Video & Social Dating bist du verantwortlich für die Führung eines funktionsübergreifenden Teams aus iOS, Android, Backend und QA. Du verbindest starke technische Expertise mit Leadership-Kompetenz und stellst sicher, dass dein Team hochwertige Features liefert und sich gleichzeitig technisch wie operativ kontinuierlich weiterentwickelt. Du arbeitest eng mit anderen Leads, Product und Agile zusammen, um Produkterfolg und die Entwicklung der Plattform voranzutreiben. WAS DU UNBEDINGT MITBRINGST   * Mehrjährige Berufserfahrung im Software Engineering mit tiefgehender Expertise in mindestens einem Bereich (Backend, Frontend, Mobile oder QA) * Ausgeprägtes technisches Urteilsvermögen sowie Erfahrung darin, komplexe Features oder Systeme von der Idee bis zum Produktivbetrieb voranzutreiben * Starke Kommunikationsfähigkeiten und die Fähigkeit, effektiv mit technischen und nicht-technischen Stakeholdern zusammenzuarbeiten * Eine Coaching-Mentalität und echtes Interesse daran, andere in ihrer Entwicklung zu fördern * Ein starkes Verantwortungsbewusstsein sowie ein gutes Gespür für Priorisierung und Verbindlichkeit * Neugier auf KI und die Fähigkeit einzuschätzen, wo sie einen echten Mehrwert schafft WAS DU IDEALWERWEISE NOCH MITBRINGST * Erfahrung in der Leitung funktionsübergreifender Initiativen oder in der Koordination teamübergreifender Arbeit * Erfahrung im Mentoring von Engineers und darin, Teams in Bezug auf Erfahrungslevel, Qualität und Zusammenarbeit weiterzuentwickeln * Erfahrung darin, Architekturentscheidungen zu begleiten und kurzfristige Lieferung mit langfristiger Nachhaltigkeit auszubalancieren * Praktische Erfahrung mit modernen Engineering-Praktiken wie Code Reviews, Testing und kontinuierlicher Verbesserung WAS DICH ERWARTET  * Führung und Weiterentwicklung eines oder mehrerer funktionsübergreifender Engineering-Teams (iOS, Android, Backend, QA) mit voller personeller Verantwortung, einschließlich Recruiting, Performance Management und Karriereentwicklung * Du treibst die technische Führung im Team voran, indem du die Richtung bzgl. Architektur vorgibst, zentrale Entscheidungen steuerst und sicherstellst, dass Lösungen skalierbar und wartbar sind * Du bist aktiv in der Feature-Entwicklung und dem setzen technischer Standards involviert * Du steuerst technische Entscheidungen, um skalierbare, wartbare und leistungsstarke Lösungen sicherzustellen * Du achtest auf Codequalität durch Reviews, Mentoring und praxisnahe Best Practices * Du stellst sicher, dass das Team auf die Produktziele hinarbeitet und Ergebnisse rechtzeitig sowie zuverlässig liefert * Du arbeitest eng mit dem Product Management und anderen Engineering Leads zusammen, um Prioritäten und Architekturentscheidungen abzustimmen, Ergebnisse voranzutreiben und Business Impact sicherzustellen * Du förderst eine inklusive, vertrauensvolle Teamkultur, mit starkem Fokus auf Zusammenarbeit und der Übernahme von Verantwortung Wir bei der ParshipMeet Group unterstützen Millionen von Menschen auf der ganzen Welt dabei, sich zu treffen, zu daten und zu verlieben. Unsere Teams sollen genau so vielfältig sein wie unsere Kunden. Neue Kolleg:innen bereichern uns mit neuen Sichtweisen. Dies ist für uns ein wesentlicher Erfolgsfaktor. Deshalb beurteilen wir niemanden nach Alter, Geschlecht, familiärem Hintergrund, Hautfarbe, religiöser Überzeugung oder sexueller Orientierung. Bei uns stehst du als Mensch mit deinen Fähigkeiten im Mittelpunkt!

ZEAL Network

ZEAL Network SE is a leading international provider of online lottery products, operating for over 20 years with brands like LOTTO24 and Tipp24. As Germany’s largest digital lottery operator and a trusted partner of Spain’s ONCE, we are passionate about shaping the future of lottery experiences. Traumhausverlosung is one of ZEAL’s newest and most exciting brands. It gives players the chance to win stunning, fully furnished dream homes through an accessible, thrilling lottery format, while supporting a good cause. Every ticket sold not only offers participants the opportunity to transform their lives, but also contributes to charitable projects, making a real difference in communities across Germany. By combining the excitement of winning with a meaningful social impact, Traumhausverlosung reflects ZEAL’s commitment to innovation, social responsibility, and offering customers more than just a game, but a chance to do good while dreaming big. As our Engineering Team Lead (f/m/d), you combine strong people leadership with hands-on technical expertise to guide and grow a high-performing engineering team. You drive architectural and technical decisions together with your team while actively contributing to the codebase and solving complex challenges. In close collaboration with Product Management and UX, you help shape product and technology strategies that balance business goals, customer experience, and technical excellence. With a pragmatic and ownership-driven mindset, you foster cross-team collaboration, enable your team to thrive, and ensure the delivery of scalable, maintainable, and impactful solutions. YOUR TASKS: * Lead, mentor, and develop engineers, including performance management, feedback, and professional growth * Lead technically and strategically, define and drive architectural decisions together with your team * Code as part of the team: While guiding architecture and strategy, you’ll regularly write code, contribute to features, and help solve complex technical challenges together with your team * Act as a sparrings partner for product management and UX, working closely with them to define and drive product and tech strategies * Bridge architecture, product and UX: Deliver robust and maintainable technical solutions while focusing on great customer experiences and business needs * Drive collaboration: Work closely with other teams to align APIs, technical interfaces, and architectural consistency * Prioritize intelligently: Balance technical ambition with pragmatic delivery, and work closely with product, UX and other stakeholders to reduce internal friction   WHAT YOU OFFER US: * Proven people leadership skills with the ability to develop others and build trust * Empowering leadership style that enables rather than micromanages * Leadership experience in managing an engineering team (ideally in a cross-functional context) * Strong and up-to-date hands-on experience working with Next.js (App Router, Server Functions, Server Components), TypeScript, and HTML5/CSS3 * “You build it, you run it” mindset and experience in deploying, monitoring, and maintaining a web application * Experience in e-commerce environments * Ability to translate business requirements into technical solutions * Excellent organizational and prioritization skills in dynamic settings * Strong communication skills with the ability to align diverse stakeholders * Proactive, ownership-driven mindset   WHAT WE OFFER YOU: * State-of-the-art technologies and an agile environment (Check our Tech Radar: https://lotto24.github.io/tech-radar/) * A modern, dynamic culture grounded in the success of a leading-edge e-commerce company. * A talented team of ambitious, like-minded colleagues where your knowledge and ideas truly make an impact. * Ongoing personal growth, supported by an annual development budget of €2,500 to invest in your professional development. * Trust and autonomy, no micromanagement, just confidence in your ability to deliver and excel. * Flexible work options with a hybrid setup focused on results. * Unlimited vacation days in addition to your yearly 30-day vacation allowance. * Opportunity for workations abroad using our WorkFlex tool. * Monthly mobility allowance of €30 to use on the mobility option of your choice (e.g., the Deutschlandticket), plus access to a company bike leasing program. * Company pension scheme, provided in partnership with Degura, to support your future financial security. * Subsidized EGYM WELLPASS membership, with a contribution of only €25 per month, giving you access to a wide range of gyms and sports options across Germany. * Monthly company events, team activities, and informal gatherings, including our popular company-wide lunches provided four days a week.   Not ticking every box or think you’ve got that unique set of skills we haven’t realized we need? Get in touch anyway, we’re always looking to add great people!