{"id":3304974,"url":"https://alion.io/job/capalo-ai-senior-backend-engineer-cloud-infrastructure","title":"Senior Backend Engineer – Cloud Infrastructure","company":{"id":2311376,"name":"Capalo AI","domain":"capaloai.com","url":"https://alion.io/company/capaloai","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":null},"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":"explicit","locations":["Helsinki, Finland","Kuopio, Finland"],"countries":["FI"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":58000,"max_usd":117000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":22},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"MQTT","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Terraform","optional":false},{"name":"Time Series","optional":true}],"status":"live","first_seen_at":"2026-09-04T00:00:00Z","employer_posted_date":"2026-09-04","last_verified_at":"2026-10-28T19:29:16Z","board_verified":true,"closed_at":null,"days_open":54,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":54},"description":"Location: Helsinki, Finland (Hybrid) · Kuopio or remote within Finland · Relocation support available\nBuild the cloud platform behind Europe's grid-scale batteries\nWe're looking for a Senior Backend Engineer to help build the cloud infrastructure behind Capalo Zeus VPP™ - our virtual power plant that forecasts, optimizes, bids, dispatches, and operates grid-scale battery storage across European electricity markets.\nThis is not an internal business application. Our software continuously interacts with real battery assets and market operators, making production reliability, correctness, and operational excellence central engineering challenges.\nThis is a senior role with end-to-end technical ownership. You'll design backend systems, shape architecture, make production-critical technical decisions, and help evolve the platform as we expand into new markets and new types of energy assets.\nAbout Capalo AI\nCapalo AI develops software that turns grid-scale batteries and hybrid renewable parks into actively traded energy assets through Capalo Zeus VPP™-our fully managed virtual power plant for forecasting, optimization, trading, dispatch, and operational control.\nZeus VPP operates continuously across European electricity markets, integrating with wholesale, balancing, and ancillary service markets while coordinating state-of-charge-aware dispatch across battery portfolios.\nWhat you'll work on\nDesign and build backend services for asset monitoring, schedule generation, command delivery, and battery dispatch\n\nDevelop integrations with asset-side systems and market interfaces using REST APIs, MQTT, and IEC-104\n\nBuild cloud-native infrastructure on AWS, including event-driven services, storage layers, deployment tooling, and operational foundations\n\nDevelop the backend foundations that support forecasting and optimization pipelines, with a focus on data quality, traceability, replayability, and safe production deployment\n\nImprove observability, failure handling, incident response, and the reliability of business-critical services operating 24/7\n\nContribute to engineering standards through architecture reviews, Infrastructure as Code (Terraform), CI/CD, and mentoring other engineers\n\nWhat we're looking for\nRequired\nSignificant experience building and operating production backend systems where reliability, maintainability, and correctness matter\n\nStrong hands-on Python and modern backend engineering, including APIs, asynchronous processing, and event-driven architectures\n\nExperience designing production systems, including service boundaries, APIs, failure handling, and operational ownership\n\nProduction experience with AWS or another major cloud platform\n\nComfort working across backend engineering, infrastructure, data, and domain logic in technically ambiguous environments\n\nNice to have\nInfrastructure as Code (Terraform or equivalent)\n\nExperience integrating with external APIs, industrial protocols, or machine-to-machine systems (MQTT, IEC-104, SCADA, or PPC experience is a plus)\n\nBackground in time-series systems, scheduling, control systems, or other operational software\n\nExperience with energy markets, trading platforms, grid services, or optimization-driven production systems\n\nWhy Capalo AI\nProduction systems with real-world impact. Your software directly supports how grid-scale batteries participate in European electricity markets.\n\nInteresting engineering challenges. Build distributed systems, event-driven cloud services, industrial integrations, and reliable software for continuously operating infrastructure.\n\nMeaningful ownership. Engineers own systems from design through production and have significant influence on architecture and technical direction.\n\nA growing domain. Battery storage is becoming critical infrastructure for the energy transition, and we're building the software that enables it.\n\nWhat to Expect\nLocation: Helsinki, Finland\n\nWorking mode: Hybrid - 3 days per week in the office\n\nRecruitment process: Screening call → Take-home assignment → Technical interview → Bar raiser interview\n\nWe review applications on a rolling basis and welcome candidates from diverse backgrounds.","description_format":"text","description_chars":4157,"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":"Finland","iso":"FI","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["Energy Storage","Energy Management","Energy AI"],"lifecycle":[{"event":"open","at":"2026-10-27T00:59:58Z"}],"visa":[],"liveness":{"score":27,"band":"fade","label":"Fading","p_open":1,"p_active":0.589,"p_room":0.45,"age_days":54,"expected_fill_days":28,"reasons":["conf:13","win:tail"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/capalo-ai-senior-backend-engineer-cloud-infrastructure","json_url":"https://alion.io/job/capalo-ai-senior-backend-engineer-cloud-infrastructure.json","meta":{"generated_at":"2026-10-28T21:25:15Z","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":29547,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"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":2311376},"rest":"https://alion.io/mcp/rest/get_company?id=2311376"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcapalo-ai-senior-backend-engineer-cloud-infrastructure"},{"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%2Fcapalo-ai-senior-backend-engineer-cloud-infrastructure"},{"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%2Fcapalo-ai-senior-backend-engineer-cloud-infrastructure"},{"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/capalo-ai-senior-backend-engineer-cloud-infrastructure\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcapalo-ai-senior-backend-engineer-cloud-infrastructure"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3304974}},{"tool":"search_jobs","arguments":{"company":"capaloai.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3304974},"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. Docs: https://alion.io/developers"}}