{"id":3225478,"url":"https://alion.io/job/thermondo-senior-full-stack-engineer-fmd","title":"Senior Full Stack Engineer (f/m/d)","company":{"id":173439,"name":"thermondo","domain":"thermondo.de","url":"https://alion.io/company/thermondo","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Personio","truth_index":{"grade":"D","score":48,"open_postings":195,"ghost_share":0.779,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":584,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Berlin, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":66000,"max_usd":116000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":62},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Node JS","optional":false},{"name":"Python","optional":false},{"name":"TypeScript","optional":false},{"name":"Vue.js","optional":false},{"name":"AWS","optional":true},{"name":"GCP","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"Machine Learning","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2025-10-24T09:21:56Z","employer_posted_date":"2025-10-24","last_verified_at":"2026-10-30T11:00:12Z","board_verified":true,"closed_at":null,"days_open":371,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":369},"description":"We're looking for\nAt thermondo, our mission is to decarbonize every home, and technology is our primary lever for change.We are disrupting a massive industry bogged down by legacy systems and manual work. This is where you come in. We build the intelligent software and automation that gives us a decisive edge, allowing us to operate at a scale and efficiency our competitors can't match.\nAs a Senior Engineer, you will architect the foundational systems that power this mission. Whether you’re building AI-powered tools to help customers find the perfect clean-energy solution, developing automation that gives our operational teams superpowers, or optimizing the algorithms that make thousands of homes more efficient, your code will directly accelerate the green energy transition.\nWe’re looking for a seasoned builder who is ready to leverage modern Cloud and AI to solve one of the most pressing challenges of our time. If you thrive on turning complex problems into elegant solutions and want to build technology that truly matters, join us.\nIf you enjoy this\nOwn features from concept to deployment. As a technical leader, you'll partner closely with Product and Design to shape the roadmap, architect robust solutions, and guide a pod of engineers to deliver high-impact features across our full stack (Python, Node.js, TypeScript, and Vue.js).\nDesign and build scalable, resilient systems. This is a hands-on coding role. You'll solve complex problems with maintainable, performant, and secure code, applying best practices like TDD, SOLID principles, and Clean Code to create solutions built to last.\nPioneer AI Engineering at thermondo. You will be instrumental in identifying opportunities to leverage AI, from building internal \"superpowers\" with LLMs to creating intelligent, customer-facing features. You'll lead the charge from prototype to production.\nChampion a \"You Build It, You Run It\" culture. You'll take full ownership of the systems your team builds, ensuring they are scalable, observable, and resilient. You'll improve our CI/CD pipelines and advocate for testing best practices.\nElevate the team's technical bar. Through mentorship, insightful code reviews, and pragmatic architectural decisions, you will level up the engineers around you and help them grow their craft.\nAnd recognise yourself here\nYou're a seasoned full-stack engineer with at least 6 years of professional software development experience. You have a proven track record of shipping complex web applications and your expertise spans both backend (Python and/or Node.js) and modern frontend frameworks (Vue.js with TypeScript or similar).\nA natural leader and owner. You have experience acting as a Tech Lead, Feature Lead, or Directly Responsible Individual (DRI). You thrive in roles where you can take a high-level goal, break it down, and rally a team to execute.\nA product-minded builder. You don't just write code; you solve customer problems. You're a true partner to product managers, using your technical insight to influence what gets built and why.\nPragmatic and execution-focused. You have the veteran experience to know which corners can be cut and which can't. You balance the need for speed with the importance of quality, making smart tradeoffs to deliver value iteratively.Bonus Points\n\nHands-on experience with AI/ML. You have practical experience building and deploying features powered by machine learning models or large language models (LLMs).\nDeep cloud and infrastructure knowledge. You're comfortable with cloud platforms like AWS or GCP and have experience with infrastructure-as-code (e.g., Terraform) and container orchestration (e.g., Kubernetes).\nProven success in a high-growth startup. You've been through the scaling journey before and know how to build systems that can withstand rapid growth.\nA passion for climate tech. You're motivated by our mission to decarbonize homes and are excited to apply your skills to a problem that matters.\nWhat we have to offer\nIn this role, you can expect an attractive compensation package starting from €80.000\nJoin a team of Product Managers, Software Engineers, Designers, Data and Salesforce people who are excellent in their craft and are happy to share their knowledge and help you grow alongside them\nOur team is using the latest frameworks and is working with a modern tech stack to build powerful products for our customers, craftspeople, and internal teams\nBoost your skills with a dedicated annual learning budget to spend on conferences, courses or books \nChoose your own AI coding companion - we provide you with the license for the AI model or assistant of your choice \nWe offer a challenge with purpose - the better our tech, the more people will live climate-neutral and the better the world becomes for future generations\nWe offer a fantastic culture in the tech team and beyondModern office in the heart of Berlin\nWork from home - up to 3 days a week\nYou receive an Urban Sports Club membership & nilo.health membership\nYou can lease a job bike or bring your dog one day/week\nCorporate Benefits at more than 100 partners\n20% employer contribution to your pension and disability insurance\n\nAbout us\nEvery application is welcome here - regardless of gender, nationality, ethnic and social background, religion, ideology, disability, age, sexual orientation or identity. We are convinced that everyone is valuable and deserves a fair chance.Software has always been part of thermondo’s DNA. We have been the first to digitize trade a decade ago. Today, our proprietary software enables 1000 thermondinos to scale the heating transition in Germany. But we want more. We want to enable fully digitized and smooth customer journey ensuring that all processes are coming together: commercial funnel, procurement, product, supply chain, project management, finance, dispatch, HR planning as well as customer facing offerings for maintenance and home energy management.\nOur product & tech teams in Xberg - the heart of Berlin - are a highly diverse and multicultural bunch. They make sure that we can make a difference and scale the energy transition in Germany and work closely together with all departments.\nJoin our product & tech teams and pave the way for climate neutral living.\nYour application process\nAn initial interview with your Talent Acquisition partner, Alex \nIf we are both on the positive side, you will talk to our VP of Engineering Pedro\nAfter this stage, you will undergo some technical assessments\nThen, you will have the opportunity to meet with your to-be teammates. \nFinally, Become a thermondino!\n* Before inviting you to an initial interview, we use an AI-supported tool that helps our recruiting team with the initial screening and provides additional insights into the requirements of the respective position. The decision on how to proceed with your application is always made by our recruiters and the responsible hiring managers.* The specific salary level is determined during the recruitment process and depends on your experience, qualifications, and the scope of responsibility associated with the position.\nHere we go\nIs this exactly the challenge you are looking for? Then don't wait any longer and apply to us. We look forward to getting to know you!","description_format":"text","description_chars":7263,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Solar Energy","Construction"],"lifecycle":[{"event":"open","at":"2026-10-25T05:42:00Z"}],"visa":[],"liveness":{"score":22,"band":"cold","label":"Long shot","p_open":1,"p_active":0.3,"p_room":0.72,"age_days":370,"expected_fill_days":584,"reasons":["conf:3","stale_co","ghost","win:mid","crowd:brand"],"computed_at":"2026-10-30T05:48:23Z"},"pay":null,"html_url":"https://alion.io/job/thermondo-senior-full-stack-engineer-fmd","json_url":"https://alion.io/job/thermondo-senior-full-stack-engineer-fmd.json","meta":{"generated_at":"2026-10-30T11:27:50Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":16374,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":173439},"rest":"https://alion.io/mcp/rest/get_company?id=173439"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fthermondo-senior-full-stack-engineer-fmd"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fthermondo-senior-full-stack-engineer-fmd"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fthermondo-senior-full-stack-engineer-fmd"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/thermondo-senior-full-stack-engineer-fmd\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fthermondo-senior-full-stack-engineer-fmd"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3225478}},{"tool":"search_jobs","arguments":{"company":"thermondo.de","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3225478},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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