Senior Backend Developer
7 giorni fa
Die LEG ist mit rund Mietwohnungen und rund Bewohnern ein führendes börsennotiertes Wohnungsunternehmen in Deutschland. Das Unternehmen unterhält in seinem Stammland Nordrhein-Westfalen sieben Niederlassungen und ist an ausgewählten Standorten in weiteren westdeutschen Bundesländern mit persönlichen Ansprechpartnern vor Ort vertreten. Aus ihrem Kerngeschäft Vermietung und Verpachtung erzielte die LEG im Geschäftsjahr 2020 Erlöse von rund 861 Millionen Euro. Im Rahmen ihrer 2018 gestarteten Neubauoffensive möchte die LEG einen gesellschaftlichen Beitrag zur Schaffung von sowohl frei finanziertem als auch öffentlich gefördertem Wohnraum leisten und ab 2023 jährlich mindestens 500 Neubauwohnungen errichten bzw. ankaufen.
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termios ist ein Joint Venture, gegegründet von LEG Wohnen, Oventrop und mantro. So verbinden wir jahrzehntelange Fachkompetenz in den Bereichen Wohnungswirtschaft, Heizungssteuerung und Hydraulik sowie digitale Innovation.
Bei termios sind wir ein Team aus Ingenieuren, Machern und Innovatoren, die daran arbeiten, den Heizungsenergieverbrauch von Gebäuden grundlegend zu senken. Unser smartes Thermostat "termios Pro" ist mehr als nur ein IoT-Gerät: Es ist ein Wegbereiter für die Immobilienbranche, um eine effiziente und faire Nutzung von Heizenergie sowohl im Neubau als auch im Bestand zu erreichen.
Wir möchten leidenschaftliche Ingenieure und Technikbegeisterte für unsere Mission gewinnen. Wenn du dich für IoT und Embedded-Systeme interessierst und gerne Dinge entwickelst, die wirklich etwas bewegen, bist du bei uns genau richtig.
Zur Verstärkung unseres Teams in Düsseldorf oder München suchen wir zum nächstmöglichen Zeitpunkt einen
Senior Backend Developer (d/w/m) in Azure / .NET C#
Diese Aufgaben bieten wir:
- Du entwickelst skalierbare und zuverlässige Backend-Services für unsere Cloud-native IoT-Plattform, wirkst aktiv an der Systemarchitektur mit und wählst passende Technologien aus
- Die Verantwortung für komplette Features oder Services von der Konzeption über die Umsetzung bis zum Betrieb bträgst du eigenständig
- Gemeinsam mit Data Scientists optimierst du Algorithmen, arbeitest eng mit Frontend-Kolleg:innen zusammen und lässt Nutzer-Feedback gezielt in die Weiterentwicklung einfließen
- Du nutzt moderne IoT-Technologien wie LoRaWAN, um leistungsfähige und innovative Lösungen zu schaffen
- Durch kontinuierliches Debugging und Troubleshooting sorgst du für Stabilität, Ausfallsicherheit und Wartbarkeit unserer Systeme
Dieses Profil suchen wir:
- Du bringst mehrjährige Erfahrung in der Backend-Entwicklung mit C# sowie .NET und in der professionellen B2B-Softwareentwicklung mit
- Mit Datenbanken wie PostgreSQL und CosmosDB kennst du dich aus
- Du hast Erfahrung mit Domain-Driven Design, Event-Streaming-Architekturen und modernen Messaging-Technologien im Produktionsbetrieb
- Du hast bereits im IoT-Bereich gearbeitet, idealerweise mit direkter Erfahrung in LoRaWAN-Projekten, und kennst Muster für Ausfallsicherheit, Elastizität und Reaktionsfähigkeit (Reactive Manifesto)
- Gute Deutschkenntnisse (mindestens B2) und fließendes Englisch runden dein Profil ab
- Du arbeitest gerne im Team, kommunizierst klar und übernimmst Verantwortung für deine Aufgaben
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termios is a joint venture between LEG, Oventrop and mantro - combining decades of domain expertise in housing, HVAC systems, and digital innovation. That means we're not just dreaming big, we've got the experience and resources to make it happen.
At termios, we are a team of engineers, doers, and innovators working to fundamentally reduce the heating cunsumption of buildings. Our smart thermostat, termios Pro, is more than just an IoT device: It's a game changer for the real estate industry to achieve efficient and fair use of heating energy across both new and existing buidlings.
Now we're looking for passionate engineers and tech minds to join our mission. If you're into IoT, embedded systems, and you love building things that actually do make a difference, this is the place for you.
To expand our team in Düsseldorf or Munich, we are looking for a
Senior Backend Developer (d/w/m) in Azure / .NET C#
What your tasks will be:
- You develop scalable and reliable backend services for our cloud-native IoT platform, contribute to the system architecture, and select the right technologies
- Full ownership of complete features or services from concept through implementation to ongoing operation is yours
- You collaborate closely with data scientists to optimize algorithms, work hand in hand with frontend teams, and actively integrate user feedback into new features
- By leveraging modern IoT technologies such as LoRaWAN you create powerful, innovative solutions
- You ensure stability, resilience, and maintainability of our systems through continous debugging and troubleshooting
Your profile should be:
- You have several years of experience in backend development with C# as well as .NET and in professional B2B software development
- Databases such as PostgreSQL and CosmosDB are familiar territory for you
- You have applied domain-driven design, event streaming architectures, and modern messaging technologies in production environments
- Experience in the IoT field, ideally with LoRaWAN projects, allow you to design reliable, elastic, annd responsive systems (Reacitive Manifesto)
- Good German skills (at least B2) and fluency in English complete your profile
- You enjoy working in a team, communicate clearly and take responsibility for your tasks
Gute Gründe, um bei uns durchzustarten:
- Zweckorientierte Technologie: Deine Features und dein Code tragen direkt dazu bei, den Energieverbrauch in tausenden Haushalten in großem Maßstab zu reduzieren // Purpose-driven tech: Your features and your code will directly reduce energy consumption in thousands of homes - at scale
- Spürbarer Impact: Arbeite an modernster Technologie mit messbaren, echten Ergebnissen im Bereich Nachhaltigkeit // Real-world impact: Work on cutting-edge tech with measurable, real-world sustainability outcomes
- Kleines, schlagkräftiges Team: Wir arbeiten schnell, iterieren häufig und halten Hierarchien bewusst flach // Small, sharp team: We move fast, iterate often, and keep hierarchy to a minimum
- Technische Ausstattung: Von Mikrocontrollern über drahtlose Kommunikation, OTA-Firmware-Updates, Cloud-Infrastruktur, Echtzeitdaten bis hin zu KI-gestützter Optimierung - und noch viel mehr // Deep tech playground: Think microcontrollers, wireless comms, firmware OTA, cloud infrastructure, real-time data, AI-driven optimization - and more
- Ein Job, der zu deinem Leben passt: Neben attraktivem Gehalt und 30 Tagen bezahltem Urlaub bieten wir einen flexiblen Arbeitsplatz und flexible Arbeitszeiten // A job that fits your life: Along with an attractive salary and 30 days of paid vacation, we offer a flexible workplace and flexible working hours
- Unterstützt von starken Partnern: Unsere Gründer vereinen das Beste aus Immobilien, Hardwareproduktion und digitaler Innovation // Backed by serious players: Our founders bring together the best of real estate, hardware manufacturing, and digital innovation
Bereit LEGendär zu werden?
Dann LEG los und sende uns deine Bewerbungsunterlagen unter Angabe deiner Gehaltsvorstellung sowie deines nächstmöglichen Eintrittstermins über den Button "jetzt bewerben" zu.
Diversity & Inclusion
Wir verstehen uns als Arbeitgeber, der Chancengleichheit fördert. Wir beurteilen Bewerber*innen unabhängig von Alter, Herkunft, Kultur, Mentalität, Generation, Behinderung, Religion und sexueller Orientierung und wir wissen Diversität und den individuellen Selbstausdruck wertzuschätzen
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
termios is a joint venture between LEG, Oventrop and mantro - combining decades of domain expertise in housing, HVAC systems, and digital innovation. That means we're not just dreaming big, we've got the experience and resources to make it happen.
At termios, we are a team of engineers, doers, and innovators working to fundamentally reduce the heating cunsumption of buildings. Our smart thermostat, termios Pro, is more than just an IoT device: It's a game changer for the real estate industry to achieve efficient and fair use of heating energy across both new and existing buidlings.
Now we're looking for passionate engineers and tech minds to join our mission. If you're into IoT, embedded systems, and you love building things that actually do make a difference, this is the place for you.
To expand our team in Düsseldorf or Munich, we are looking for a
Senior Backend Developer (d/w/m) in Azure / .NET C#
What your tasks will be:
- You develop scalable and reliable backend services for our cloud-native IoT platform, contribute to the system architecture, and select the right technologies
- Full ownership of complete features or services from concept through implementation to ongoing operation is yours
- You collaborate closely with data scientists to optimize algorithms, work hand in hand with frontend teams, and actively integrate user feedback into new features
- By leveraging modern IoT technologies such as LoRaWAN you create powerful, innovative solutions
- You ensure stability, resilience, and maintainability of our systems through continous debugging and troubleshooting
Your profile should be:
- You have several years of experience in backend development with C# as well as .NET and in professional B2B software development
- Databases such as PostgreSQL and CosmosDB are familiar territory for you
- You have applied domain-driven design, event streaming architectures, and modern messaging technologies in production environments
- Experience in the IoT field, ideally with LoRaWAN projects, allow you to design reliable, elastic, annd responsive systems (Reacitive Manifesto)
- Good German skills (at least B2) and fluency in English complete your profile
- You enjoy working in a team, communicate clearly and take responsibility for your tasks
Reasons to join us:
- Purpose-driven tech: Your features and your code will directly reduce energy consumption in thousands of homes - at scale
- Real-world impact: Work on cutting-edge tech with measurable, real-world sustainability outcomes
- Small, sharp team: We move fast, iterate often, and keep hierarchy to a minimum
- Deep tech playground: Think microcontrollers, wireless comms, firmware OTA, cloud infrastructure, real-time data, AI-driven optimization - and more
- A job that fits your life: Along with an attractive salary and 30 days of paid vacation, we offer a flexible workplace and flexible working hours
- Backed by serious players: Our founders bring together the best of real estate, hardware manufacturing, and digital innovation
Ready to become part of the team?
Then get started and send us your application documents, stating your salary expectations and your earliest possible starting date, using the "Jetzt bewerben" button.
Diversity & Inclusion
We see ourselves as an employer that promotes equal opportunities. We assess applicatns regardless of age, origin, culture, mentality, generation, disability, religion, and sexual orientation, and we value diversity and individual self-expression.
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