{"id":951768,"url":"https://alion.io/job/squarepoint-software-developer-data-platform","title":"Software Developer - Data Platform","company":{"id":684807,"name":"Squarepoint Capital","domain":"squarepoint-capital.com","url":"https://alion.io/company/squarepoint-capital","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"C","score":61,"open_postings":77,"ghost_share":0.649,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":40,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":60000,"max_usd":120000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":55},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"C++","optional":true},{"name":"FastAPI","optional":true},{"name":"HashiCorp Vault","optional":true},{"name":"Helm","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"Nomad","optional":true},{"name":"PostgreSQL","optional":true},{"name":"Redis","optional":true},{"name":"Rust","optional":true},{"name":"SQL","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-07-28T20:06:10Z","employer_posted_date":"2026-08-06","last_verified_at":"2026-10-11T21:46:26Z","board_verified":true,"closed_at":null,"days_open":75,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":74},"description":"Position Overview:\nThe Data Development group manages the lifecycle of data used for trading, back-testing, and research at Squarepoint. We work with quantitative researchers and tech teams to integrate, process, and serve data from a huge variety of sources into our data infrastructure.\nWe are currently seeking new data developers to join our Data Platform team, where teamwork and collaboration are encouraged, excellence is rewarded and diversity of thought and creative solutions are valued. Our emphasis is on a culture of learning, development, and growth.\nData Platform is a team of Python developers working closely with technology developers and quantitative developers to design, build, test, and maintain libraries, services and frameworks used by data pipelines and investment teams across the entire Squarepoint organization. \nData Platform is able to deploy infrastructure, frameworks and tools to the rest of the Squarepoint business at speed, with stability, observability, access control and performance at top of mind. Services and libraries are resilient and highly maintainable. Data models are carefully designed in close collaboration with our domain experts for efficient application development, predictable behavior and ease of debugging. Data Platform developers also support developers in adopting and efficiently using the tools and products developed, and increase the team's quality of life, throughput, and code quality.\nAcquire a deep understanding of the interface and tooling requirements of developers to deliver the right solutions to them.\nDesign, implement, test, optimize and troubleshoot Python libraries, frameworks, and services.\nDesign and add features to React frontends when appropriate.\nCollaborate with technologists to ensure that our data applications and data platform meet evolving business requirements.\nWork closely with data operations and data pipeline developers to improve development velocity and reduce our technical debt; increase the team's quality of life.\nWrite and review technical documents, such as requirements docs for new features, design docs to propose new platform solutions, and production support runbooks.\nLend a hand in support operations - during normal working hours - to help troubleshoot higher-order production issues when first line support personnel require deeper investigation.\nMust haves\nOnly candidates with more than 4 full years of relevant experience will be considered.\nBachelor's degree in a STEM subject.\nStrong skills programming in Python.\nPractical knowledge of commonly used protocols and tools used to transfer data (e.g. FTP, SFTP, HTTP APIs, AWS S3).\nExcellent communication skills.\nNice to haves \n4+ years designing, testing, optimizing and troubleshooting data intensive applications or services, or similar.\nExperience across multiple techincal domains: such as web development, data engineering, backend development, operations.\nExperience with any of these: SQL, JavaScript, TypeScript, React, C++, Rust.\nExperience with PostgreSQL, Redis or Valkey, FastAPI, Kubernetes, Helm, Hashicorp Vault, Hashicorp Nomad","description_format":"text","description_chars":3116,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-16T01:23:59Z"}],"visa":[],"liveness":{"score":13,"band":"cold","label":"Long shot","p_open":1,"p_active":0.364,"p_room":0.36,"age_days":73,"expected_fill_days":40,"reasons":["conf:1","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/squarepoint-software-developer-data-platform","json_url":"https://alion.io/job/squarepoint-software-developer-data-platform.json","meta":{"generated_at":"2026-10-11T22:34:06Z","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":12604,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-12T00:00:00Z"}},"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":684807},"rest":"https://alion.io/mcp/rest/get_company?id=684807"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsquarepoint-software-developer-data-platform"},{"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%2Fsquarepoint-software-developer-data-platform"},{"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%2Fsquarepoint-software-developer-data-platform"},{"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/squarepoint-software-developer-data-platform\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsquarepoint-software-developer-data-platform"}]}