{"id":1861939,"url":"https://alion.io/job/flexa-senior-software-engineer-dmf","title":"Senior Software Engineer (d/m/f)","company":{"id":3894011,"name":"flexa","domain":"flexa.energy","url":"https://alion.io/company/flexa-energy","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Personio","truth_index":{"grade":"B","score":75,"open_postings":6,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-08T05:49:30Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Munich, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":95000,"max":115000,"currency":"EUR","period":"year","gross":true,"usd_annual":129457},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon ECS","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"Azure","optional":false},{"name":"GCP","optional":false},{"name":"Python","optional":false},{"name":"Windows","optional":true}],"status":"live","first_seen_at":"2023-12-27T15:10:44Z","employer_posted_date":"2023-12-27","last_verified_at":"2026-10-08T18:20:53Z","board_verified":true,"closed_at":null,"days_open":1016,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":1015},"description":"Short Facts\nLocation: Munich, Germany\nEmployment Type: Full-Time, indefinite term\nSalary Range: € 95.000 - 115.000 per year gross, depending on the seniority level\nWorking mode: In office\nLanguage Requirement: C1 Level English\nYour Responsibilities\nDesign, craft and maintain our VPP system end-to-end, across dimensions such as data ingestion and processing, energy management system (EMS), optimization logic implementation, fleet control, accounting and settlement\n\nWork cross-functionally, especially with data scientists to support them in the implementation of our optimization logic, automated trading execution, and battery control\n\nYou will mentor and guide team members and improve their workflows by bringing your best knowledge to the team\n\nDefine and foster engineering best practices and spend time teaching engineers and data scientists on how to design and deliver a well built, maintainable, iterable solution\n\nYou will support your colleagues during their onboarding, daily operations and strategic tasks\n\nImplementation of our optimization and trading algorithms with focus on immediate go-lives as well as strategic, long-term focussed advancement of our platform\n\nMaintain and improve our tech stack and development environments and build infrastructure, from how services are developed and tested, to how they are built and integrated, to how they are monitored\n\nYour Profile\nMandatory requirements\n5+ years experience in Software Engineering (Backend and algorithmic) in the cloud\n\n2-3 years experience with Python including object-oriented design\n\n2+ years experience in onboarding, mentoring and coaching colleagues in junior positions\n\nSolid hands-on experience deploying and operating production systems on a major cloud platform (AWS, GCP, or Azure)\n\nEvidence of pragmatic delivery\n\nExperience working cross-functionally, especially with Product and Data Science teams\n\nTeam player to effectively bring across complex ideas and concepts with an ability to work on solutions individually\n\nExperience and desire to work in a dynamic, fast-paced environment\n\nStrategic and analytical thinking\n\nFull business proficiency in English\n\nSkills to Set You Apart\nStrong experience with AWS cloud platform and familiarity with services like ECS, RDS, Lambda, SQS, S3\n\nEnergy industry experience\n\nThis won’t be the right role for you if…\nYou don’t have the habit of defining your own tasks and expect other functions to do them\n\nYou are used to working in clear separate functions\n\nAt Flexa, we are committed to diversity - of backgrounds and experiences. You don’t need 100% of the preferred qualifications to add incredible value to our team. If you’re passionate about what you could accomplish here, we would love to hear from you.\nYour Benefits\nVirtual Share Options: We offer virtual share options to all our employees\nProfessional Development: Annual development budget of 3,000 € for coachings, trainings, books, etc\nHealth & Sport Subsidy: Company subsidised sports facilities membership\nPublic Transportation Subsidy: Monthly subsidy for your public transport ticket\nLunch/Dinner Allowance Vouchers: Allowance for meals on working days as digital meal vouchers\nWork Equipment: MacBook Pro or Windows Laptop, and ergonomic workplace\nRegular Team Events: Knowledge Sessions, Afterwork, Sports, Offsites, Halloween, Pride Month, etc.\n\nA Short Note from Your Future Lead\nSebastian Troitzsch, Software Engineering Manager - Flexa\nHi there!\nI’m Sebastian Troitzsch, Software Engineering Manager at Flexa, where we focus on building software systems that enable large-scale virtual power plants and intelligent energy management. My expertise sits at the intersection of energy systems, numerical optimization, and scalable cloud software, with a focus on turning complex energy models into reliable production systems that operate in real-world energy markets.\nBefore joining Flexa, I worked at gridX as Software Team Lead, where I led a team responsible for the dynamic tariff optimization feature of gridX’s energy management system, helping scale the platform from prototype to production systems serving tens of thousands of households.\nEarlier in my career, I worked in energy system modeling and optimization research in Singapore, developing the multi-energy system modeling and optimization platform that powered public sector studies into electric vehicle infrastructure rollout and integrated thermal/electrical energy system planning on district level.\nAt Flexa, we believe innovation happens when talented people collaborate across disciplines. We aim to create an environment where engineers can take ownership, experiment with new ideas, and build technology that has real impact on the future of energy.\nIf you’re eager to be part of a dynamic and international team as well as excited about building technology that accelerates the transition to a smarter and more flexible energy system, I encourage you to explore opportunities with us.\nThank you for considering a future with us. Looking forward to what we can build together.\nSebastian","description_format":"text","description_chars":5075,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Apple Macbook","Professional development","Stock options"],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-04T20:44:55Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.282,"p_room":0.28,"age_days":1015,"expected_fill_days":40,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-08T05:49:30Z"},"pay":{"stated_usd_annual":129457,"is_top_pay":false},"html_url":"https://alion.io/job/flexa-senior-software-engineer-dmf","json_url":"https://alion.io/job/flexa-senior-software-engineer-dmf.json","meta":{"generated_at":"2026-10-09T03:28:11Z","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","counted_by":"address","units_charged":1,"used_today":2153,"day_limit":5000,"remaining_today":2847,"minute_limit":60,"resets_at":"2026-10-10T00:00:00Z"}},"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":3894011},"rest":"https://alion.io/mcp/rest/get_company?id=3894011"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fflexa-senior-software-engineer-dmf"},{"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%2Fflexa-senior-software-engineer-dmf"},{"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%2Fflexa-senior-software-engineer-dmf"},{"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/flexa-senior-software-engineer-dmf\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fflexa-senior-software-engineer-dmf"}]}