{"id":2363937,"url":"https://alion.io/job/aira-backend-engineer-acquisition","title":"Backend Engineer - Acquisition","company":{"id":1846527,"name":"Aira","domain":"airahome.com","url":"https://alion.io/company/airahome","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":{"grade":"A","score":90,"open_postings":5,"ghost_share":0,"stale_share":0.4,"repost_share":0,"time_to_fill_p50_days":56,"computed_at":"2026-10-13T05:45:00Z"}},"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":"structured","locations":["Stockholm, Sweden"],"countries":["SE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":53000,"max_usd":154000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6426},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Java","optional":false},{"name":"Spring Boot","optional":false},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"Docker","optional":true},{"name":"gRPC","optional":true},{"name":"JavaScript","optional":true},{"name":"Kotlin","optional":true},{"name":"Kubernetes","optional":true},{"name":"Next.js","optional":true},{"name":"PostgreSQL","optional":true},{"name":"React.js","optional":true},{"name":"Terraform","optional":true},{"name":"tRPC","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-12T15:08:02Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-13T09:25:08Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"10% of Europe’s CO₂ emissions are caused by residential heating and energy bills are out of control. Aira is here to change that.\nWith our intelligent Aira Heat Pump at the heart, we’re making the switch to clean energy-tech easier and more affordable. Helping Europe turn off gas and slashing energy costs one home at a time.\nFounded in 2022, and with 1200+ employees and counting, Aira is driving the clean energy revolution by providing homes with modern clean energy-tech solutions such as solar power, battery storage solutions and heat pumps. With a state-of-the-art production facility in Poland, and HQ in Stockholm, Sweden, and hubs across the UK, Germany and Italy, Aira is well on track to install clean energy-tech into 5 million homes by 2034.\nAbout the role:\nWe are looking for back-end engineers to join our product teams in Stockholm. Rather than hiring for one specific seat, we are hiring for the group. We have several small, autonomous product teams working on the customer acquisition journey, each built around four developers, a designer and a product manager, and we would rather find the right people first and work out the best fit together.\nThe teams you could join:\nPlanning builds the tooling that schedules Aira's field force across the whole customer journey, from booking sales visits to heat pump installations and maintenance. This is where the hardest optimisation problems live: travel times, route optimisation, partial assignments, and mixing internal and subcontractor capacity as we scale into new regions.\nSurvey & Design owns the steps where we capture data about a customer's home and turn it into a tailored, carbon neutral energy solution. The domain spans 3D modelling, thermodynamics, electronics and logistics. There is real modelling work here, along with third party integrations that bring in geometric and climate data we have to transform into something our own model can use.\nExpansion takes the product into new markets and improves how customers convert. New market launches, pricing, conversion flows, solar PV output modelling, and the next generation of our heat pump product. Every new market brings its own rules, and the backend is where most of that lands.\nWe will talk about which team fits you best during the process, and you will meet the team before anything is decided.\nSome of the things you can expect to work with in this role:\nDesign and build backend services that scale to our users all over Europe\n\nCreate well designed APIs that stand the test of time\n\nIntegrate with third party providers reliably and transform their data into a data model that fits our use case\n\nCreate feedback loops between the data we get from the thousands of installed heat pumps and our own tooling, making sure it gets better over time\n\nMake sure our backend architecture scales gracefully with new product requirements and stays clean and approachable for both your teammates and your future self\n\nWhat you bring to the team:\nHave around 5+ years of experience as a Software Engineer\n\nFeel comfortable writing Java code and using Spring Boot\n\nHave a strong understanding of databases and domain driven design\n\nHave experience building and documenting APIs\n\nCan convert an idea into clean, testable, and scalable software services\n\nEngage in team discussions and have a mindset to take responsibility\n\nHave knowledge of microservices architecture\n\nOur teams are not all set up the same way. Some have dedicated front-end and back-end engineers, others are full-stack across the board. So there is a real home here for a backend specialist, and in the smaller teams there is always the possibility to dip your toes in the web frontend or even our apps if you want to. We will be straight with you about which team is which.\nNice to have:\nExperience at fast-growing companies\n\nExperience with gRPC and tRPC\n\nKafka or Kotlin\n\nWriting front-end code in React\n\nExperience with Kubernetes, Docker or Terraform\n\nOur tech stack includes Java (Spring Boot), gRPC, Postgres, Kafka, TypeScript, React, NextJS, tRPC, AWS, Kubernetes, Docker, and Terraform.\nSkills and mindset go hand in hand. If you don't meet every requirement but bring a positive and motivated attitude, we'd love to hear from you!\nWhat is in it for you?\nGain hands-on experience in a fast-growing scale-up, with a supportive and inclusive culture, and career advancement opportunities.\n\nCollaborate with diverse teams across international markets and launch products globally.\n\nDevelop and grow personally and professionally in an entrepreneurial-minded environment.\n\nThrive in a dynamic, solution-oriented culture, tackling challenges and driving meaningful solutions that make a positive impact on the world.\n\nInfluence the company's success, with a visible impact on product development and market growth.\n\nEnjoy our brand-new office at Norra Stationsgatan 93 in Stockholm. Conveniently located near public transport, with Sankt Eriksplan and Odenplan stations just a few minutes walk away.\n\nAt Aira, we champion next-generation energy as well as diversity and inclusion. We firmly believe that a diverse workforce fosters innovation and creativity, enhancing our ability to serve customers and communities effectively. We welcome individuals from all backgrounds, cultures and perspectives to join our team. Our commitment is to uphold equality and inclusivity, fostering a collaborative environment where everyone can thrive and contribute to a better future for our people and the planet.","description_format":"text","description_chars":5507,"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":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy Efficiency","Solar Energy","HVAC & Refrigeration"],"lifecycle":[{"event":"open","at":"2026-10-12T16:24:24Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":56,"reasons":["conf:0","win:early"],"computed_at":"2026-10-13T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/aira-backend-engineer-acquisition","json_url":"https://alion.io/job/aira-backend-engineer-acquisition.json","meta":{"generated_at":"2026-10-13T10:29:29Z","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":16012,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"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":1846527},"rest":"https://alion.io/mcp/rest/get_company?id=1846527"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Faira-backend-engineer-acquisition"},{"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%2Faira-backend-engineer-acquisition"},{"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%2Faira-backend-engineer-acquisition"},{"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/aira-backend-engineer-acquisition\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Faira-backend-engineer-acquisition"}]}