{"id":116659,"url":"https://alion.io/job/the-castle-blog-backend-software-engineer","title":"Backend Software Engineer","company":{"id":4417330,"name":"Castle","domain":"getcastle.com","url":"https://alion.io/company/getcastle","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":98000,"max":145000,"currency":"USD","period":"year","gross":null,"usd_annual":145000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Django","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false}],"status":"live","first_seen_at":"2025-06-04T16:15:06Z","employer_posted_date":"2025-06-04","last_verified_at":"2026-10-17T15:38:58Z","board_verified":true,"closed_at":null,"days_open":500,"trust":{"level":"stale","repost_count":1,"flags":["stale"],"days_open":499},"description":"Castle is the finance app that saves homeowners time and money.\nHomeowners use Castle to pay for and track all of their home expenses in one place. Castle then monitors those transactions for opportunities to save. The average Castle customer saves more than $10,000 on their home.\n\nHousing affordability is a major problem in the U.S. At Castle, we believe that homeowners deserve better data when it comes to managing their biggest asset. We’re building payments infrastructure for the largest consumer category in the U.S. - to help people automate, consolidate, and reduce their spend.\n\nIn this role you’ll be a foundational and versatile member of our engineering team, focused on building a simpler, smarter, and more intuitive experience for homeowners. You’ll collaborate closely with our Head of Engineering, Head of Design, and fellow engineers to bring to life a user-friendly app that clarifies complex home expense management and builds long-term trust with our customers. This role is perfect for someone who is passionate about solving complex problems and shaping a powerful product experience at an early-stage, high-growth company.\nCore Responsibilities Include:\nDeveloping and maintaining REST APIs using Django.\n\nManaging and optimizing our cloud infrastructure.\n\nOverseeing CI/CD pipelines, as well as monitoring, logging, and alerting systems.\n\nBuilding mission-critical features including:\nBill payment system for processing ACH and check payments;\n\nAI-powered system for recording payments made outside of Castle environment;\n\nData pipeline that transforms customer data into insights.\n\nWhat you'll need:\nExpertise with Python and Django framework.\n\nExpertise in RESTful API design.\n\nExperience with distributed systems design.\n\nStrong experience with cloud infrastructure and related tools\n\nExperience with CI/CD tools and practices.\n\nQualifications:\nBachelor’s degree in Computer Science or related field (or equivalent practical experience).\n\nExperience building and shipping production applications.\n\nExperience in consumer fintech preferred.\n\nwww.getcastle.com","description_format":"text","description_chars":2089,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2025-06-04T16:15:06Z"},{"event":"open","at":"2026-09-25T20:42:00Z"},{"event":"close","at":"2026-10-11T22:45:02Z"},{"event":"reopen","at":"2026-10-14T07:15:43Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.238,"p_room":0.28,"age_days":499,"expected_fill_days":61,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":145000,"is_top_pay":false},"html_url":"https://alion.io/job/the-castle-blog-backend-software-engineer","json_url":"https://alion.io/job/the-castle-blog-backend-software-engineer.json","meta":{"generated_at":"2026-10-17T16:22:26Z","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":22511,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":4417330},"rest":"https://alion.io/mcp/rest/get_company?id=4417330"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fthe-castle-blog-backend-software-engineer"},{"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%2Fthe-castle-blog-backend-software-engineer"},{"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%2Fthe-castle-blog-backend-software-engineer"},{"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/the-castle-blog-backend-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fthe-castle-blog-backend-software-engineer"}]}