Senior Backend Engineer (all genders)

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  "active_status": "active"
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{
  "id": "2633262",
  "name": "Senior Backend Engineer (all genders)",
  "office": "Cologne",
  "keywords": [],
  "schedule": "full-time",
  "createdAt": "2026-05-13T11:02:55+00:00",
  "seniority": "experienced",
  "department": "Engineering",
  "occupation": "general_and_other_engineering",
  "subcompany": "envelio GmbH",
  "employmentType": "permanent",
  "jobDescriptions": [
    {
      "name": "About Working at envelio",
      "value": "<span style=\"font-family:Arial, Helvetica, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-transform:none;background-color:rgb(255,255,255);text-decoration:none;display:inline;\">Too easy is boring! Together, we are on a mission to drive forward the energy transition. We love what we do, and we are unafraid to dive in. We believe in taking ownership of our work and in continuously growing and evolving. In short: own it, love it, grow with it.</span><span style=\"font-family:Arial, Helvetica, sans-serif;\"><br style=\"border:0px solid;margin:0px;font-family:Inter, '-apple-system', BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Open Sans', 'system-ui', '-apple-system', 'Segoe UI', Roboto, Ubuntu, Cantarell, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';font-size:14px;font-style:normal;font-weight:400;text-transform:none;\"><br style=\"border:0px solid;margin:0px;font-family:Inter, '-apple-system', BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Open Sans', 'system-ui', '-apple-system', 'Segoe UI', Roboto, Ubuntu, Cantarell, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';font-size:14px;font-style:normal;font-weight:400;text-transform:none;\"></span><span style=\"border:0px solid;margin:0px;font-size:14px;font-style:normal;font-weight:400;text-transform:none;text-decoration:none;color:rgb(32,32,32);font-family:Arial, Helvetica, sans-serif;background-color:rgb(255,255,255);display:inline;\">We are a humble team of coffee and maté lovers with over 20 nationalities. With our geek humor, our love for emojis and random facts is only natural. Over 150 envelians are already on board. Dive in and thrive!</span>"
    },
    {
      "name": "Your Role",
      "value": "<span style=\"color:rgb(0,0,0);font-family:Arial, Helvetica, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-transform:none;text-decoration:none;display:inline;\">As Senior Backend Engineer (all genders) you will be part of an engineering squad with strong knowledge of coding, database and architecture. Together, you drive the scaling of our product and have an impact on our users, our organization, and our engineering practices.  <span> </span></span>"
    },
    {
      "name": "How You Make an Impact",
      "value": "<ul style=\"color:rgb(0,0,0);font-style:normal;font-weight:400;text-transform:none;margin:4px 0px 4px 24px;padding:0px;\"><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You are part of a cross-functional team (backend, frontend and fullstack<b style=\"font-weight:700;\"><i style=\"font-style:italic;\"> </i></b>developers, design, and product manager) and develop user-friendly applications which bring effective customer value </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You conceptualize and develop professional backend solutions to continuously evolve our product in an agile working environment  </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You design and interact with APIs, both in external interaction as well as communication with the product’s frontend  </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You develop strategic pathways for evolving the product's tech stack to state of the art solutions  </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You have ambitious quality objectives and accompany the entire development process, from concept over implementation through testing to go-live  </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You care about ease of our operation of our service, making relevant infrastructure decisions</li></ul>"
    },
    {
      "name": "Your Profile",
      "value": "​​​​​<span style=\"font-family:Inter, '-apple-system', BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Open Sans', 'system-ui', '-apple-system', 'Segoe UI', Roboto, Ubuntu, Cantarell, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';font-size:14px;font-style:normal;font-weight:400;text-transform:none;background-color:rgb(255,255,255);text-decoration:none;display:inline;\">Perfection is a myth! We are much more interested in the person behind the screen. These criteria are therefore intended more as a guide for you. We are excited to see how your individual skills fit in with us.</span><br><br><ul style=\"color:rgb(0,0,0);font-style:normal;font-weight:400;text-transform:none;margin:4px 0px 4px 24px;padding:0px;\"><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You have relevant experience in the backend development of web applications and you self-sufficiently implement new features of various complexity </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You have extensive experience with Python, ideally in the context of designing or interacting with APIs as well as integration with 3rd party systems </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You have experience with SQL databases for data modeling and query design</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You know how to run web applications reliably, monitor them, debug and fix production issues and design and implement preventive measures for the future</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You are a team player and passionate about working with talented and inspiring people  </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You are looking for technical challenges and pride yourself in finding smart and creative solutions </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You are familiar with parts of our tech stack and are looking forward to keeping up with current industry best practices </li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);font-family:Arial, Helvetica, sans-serif;font-size:14px;\">You are business-fluent in English (Level C1)</li></ul><br>"
    },
    {
      "name": "How we develop Software",
      "value": "<ul style=\"color:rgb(0,0,0);font-style:normal;font-weight:400;text-transform:none;margin:4px 0px 4px 24px;padding:0px;\"><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">Agile working method with Kanban in interdisciplinary squads</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">Continuous integration / Continuous delivery</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">Clean (and simple) code, documentation</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">High unit test coverage and regular code reviews</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">Knowledge sharing sessions between developers<span> </span></li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">“You Code it – You Own it” – Squad responsibility for certain functional areas of the product</li></ul>"
    },
    {
      "name": "Our Tech Stack",
      "value": "<ul style=\"color:rgb(0,0,0);font-style:normal;font-weight:400;text-transform:none;margin:4px 0px 4px 24px;padding:0px;\"><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">Python, incl. additional packages/frameworks e.g., FastAPI, SQLAlchemy and Celery</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">PostgreSQL</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">RabbitMQ, Redis</li><li style=\"margin:2px 0px;padding:0px;color:rgb(29,28,29);\">Docker, Kubernetes</li></ul>"
    },
    {
      "name": "Your Benefits",
      "value": "<ul style=\"border:0px solid;font-family:Inter, '-apple-system', BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Open Sans', 'system-ui', '-apple-system', 'Segoe UI', Roboto, Ubuntu, Cantarell, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';font-size:14px;font-style:normal;font-weight:400;text-transform:none;text-decoration:none;color:rgb(32,32,32);\"><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\"><strong style=\"border:0px solid;margin:0px;\">Flexible working mode</strong> within Germany: Hybrid, from home or in our lovely office in Cologne </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\">Option for<span style=\"border:0px solid;margin:0px;\"> </span><strong style=\"border:0px solid;margin:0px;\">remote work</strong><span style=\"border:0px solid;margin:0px;\"> </span>from abroad (up to three months per year from anywhere in the EU or the USA)  </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\"><strong style=\"border:0px solid;margin:0px;\">State of the art </strong><strong style=\"border:0px solid;margin:0px;\">technology</strong> and modern tech stack </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\">Excellent hardware equipment (16 inch MacBooks, 2 screens at your workplace)  </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\">Support for your health through <strong style=\"border:0px solid;margin:0px;\">sports membership</strong><span style=\"border:0px solid;margin:0px;\"> </span>cooperations</li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\"><span style=\"font-style:normal;font-weight:400;text-transform:none;color:rgb(44,44,43);\">Professional<span> </span></span><span style=\"font-style:normal;text-transform:none;font-weight:600;color:rgb(44,44,43);\">mental wellbeing support</span><span style=\"font-style:normal;font-weight:400;text-transform:none;color:rgb(44,44,43);\"><span> </span>through our partner nilo for you and your family</span>  </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\">Flexible use of a<span style=\"border:0px solid;margin:0px;\"> </span><strong style=\"border:0px solid;margin:0px;\">monthly </strong><strong style=\"border:0px solid;margin:0px;\">mobility budget</strong><span style=\"border:0px solid;margin:0px;\"> </span>(e.g. Jobrad, public transport) </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\"><strong style=\"border:0px solid;margin:0px;\">Time and resources</strong> for individual growth </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\">Regular <strong>tech & growth talks </strong>for internal knowledge sharing </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\">envelio<span style=\"border:0px solid;margin:0px;\"> </span><strong style=\"border:0px solid;margin:0px;\">pension plan</strong>  </li><li style=\"border:0px solid;margin:0px;font-family:Arial, Helvetica, sans-serif;\">Regular<span style=\"border:0px solid;margin:0px;\"> </span><strong style=\"border:0px solid;margin:0px;\">company and team </strong><strong style=\"border:0px solid;margin:0px;\">events</strong><strong style=\"border:0px solid;margin:0px;\"> </strong></li></ul>"
    }
  ],
  "occupationCategory": "engineering",
  "recruitingCategory": "Festangestellte Engineering"
}