{"id":61375,"url":"https://alion.io/job/1komma5-senior-product-engineer-mfd","title":"(Senior) Product Engineer (m/f/d)","company":{"id":20553,"name":"1Komma5","domain":"1komma5.com","url":"https://alion.io/company/1komma5","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Personio","truth_index":{"grade":"B","score":79,"open_postings":293,"ghost_share":0.273,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":166,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Hamburg, Germany"],"countries":["DE"],"hiring_countries":["DE"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":66000,"max_usd":142000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":24},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":true}],"status":"live","first_seen_at":"2026-05-13T16:45:17Z","employer_posted_date":"2026-05-13","last_verified_at":"2026-10-29T07:27:55Z","board_verified":true,"closed_at":null,"days_open":168,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":168},"description":"1KOMMA5°\nAt 1KOMMA5°, we pursue a clear vision: Living on wind and sunlight forever for free. To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it?We bring together regional craftsmanship and scalable software: We don't think of solar, batteries, heat pumps, and e-mobility as isolated components, but control them as an intelligent, integrated overall system in our virtual power plant. Directly connected to the electricity market - in real time, fully automated. This way, energy is used when it is available from renewables and particularly cost-effective. By 2030, our goal is to transition 1.5 million households to renewable energies. Over 3,000 people are working towards this every day, at more than 80 locations worldwide, from Finland to Australia.Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow.\nLearn more about our Product & Tech team!\nYour mission\nYou will help shape the virtual assembly line team - our intelligence workflow engine building solutions in Growth and Operations to scale our products globally with maximum efficiency and quality. This is a builder role at the intersection of engineering and product: you co-define what gets built, ship it fast, and use AI as a force multiplier at every step.As a (Senior) Product Engineer at 1KOMMA5°, you will take end-to-end ownership of features and workflows, making key decisions on architecture, integration layer, and solution design. You'll collaborate closely with product managers, designers, and engineers across teams to ship things that genuinely move the needle for our customers - and you won't be shy about challenging assumptions or proposing a better direction.\nOur Stack:\nTypeScript, React / Next.js (frontend) and Node.js / NestJS (backend)\nAI-assisted development with Cursor and Claude Code\nGCP / Vercel, GitHub Actions (CI/CD)\nLinear, Notion, Figma, Miro\nKey responsibilities include but are not limited to:\nOwn feature development end-to-end, from problem framing to production deployment and long-term maintenance\nBuild and integrate AI-powered product experiences using LLMs, agents, and tool-use patterns\nDefine feature scope together with PMs - engage with the \"why\", not just the \"what\"\nContribute to architectural decisions, API design, and AI integration patterns across the teams\nKeep feedback loops short: prototype, ship to real users, observe, adjust\nPush back when something doesn't make sense and propose better approaches\nYour profile\nStrong fullstack proficiency in TypeScript, React / Next.js, and Node.js / NestJS\nReal, demonstrable experience building with LLMs, APIs, or MCPs - production use preferred\nA product and customer mindset: you think about user problems, not just implementation elegance\nProven ability to own features end-to-end, from rough problem statement to shipped, maintained product\nExperience working closely with PMs and designers in a cross-functional team\nExcellent written and spoken English; German is a plus\nResidency in Germany\nBonus points for:Experience with agentic systems, tool-use patterns, or RAG pipelines\nFamiliarity with the energy market, construction, sales, or climate tech context\nPrior experience in a startup or scale-up\nBenefits\nYou are part of an international, dynamic, and highly motivated team of people who have proven to make things happen\nWith your work, you accelerate the \"energy transition\" and hence have a direct impact on our climate\nWork with and learn from other super-smart colleagues\nYou will enjoy direct contact with core decision-makers\nYou will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleups\nYou work remotely (Germany-wide), with offices in Hamburg, Berlin or Munich\nCreate a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass\nBenefits and discounts are yours with Futurebens\nWhether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time","description_format":"text","description_chars":4086,"description_truncated":false,"requirements":{"experience_years_min":null,"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":[],"lifecycle":[{"event":"open","at":"2026-05-13T16:45:17Z"},{"event":"open","at":"2026-09-05T14:40:00Z"},{"event":"open","at":"2026-09-10T07:20:00Z"}],"visa":[],"liveness":{"score":31,"band":"fade","label":"Fading","p_open":1,"p_active":0.713,"p_room":0.44,"age_days":168,"expected_fill_days":166,"reasons":["conf:2","win:tail","crowd:brand"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/1komma5-senior-product-engineer-mfd","json_url":"https://alion.io/job/1komma5-senior-product-engineer-mfd.json","meta":{"generated_at":"2026-10-29T11:28:13Z","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":17429,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":20553},"rest":"https://alion.io/mcp/rest/get_company?id=20553"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2F1komma5-senior-product-engineer-mfd"},{"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%2F1komma5-senior-product-engineer-mfd"},{"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%2F1komma5-senior-product-engineer-mfd"},{"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/1komma5-senior-product-engineer-mfd\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2F1komma5-senior-product-engineer-mfd"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":61375}},{"tool":"search_jobs","arguments":{"company":"1komma5.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":61375},"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); 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