{"id":1694691,"url":"https://alion.io/job/interactive-brokers-sr-software-developer","title":"Sr. Software Developer","company":{"id":58627,"name":"Interactive Brokers","domain":"interactivebrokers.com","url":"https://alion.io/company/interactive-brokers","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Dayforce","truth_index":{"grade":"B","score":75,"open_postings":50,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-03T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Greenwich, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":129000,"max_usd":238000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":2304},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"ElasticSearch","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"Spring Framework","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-29T10:00:00Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-03T22:35:34Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Sr. Software Developer (Greenwich, CT) (Hybrid: Remote work permitted 2 days/week) (multiple positions)\nDesign and develop scalable high-performance software applications for financial brokerage firm’s back-office and client services operations.\nBuild and integrate artificial intelligence into software to enhance client experience and improve end user efficiency.\nOptimize systems to support high-throughput communication channels with customers via various protocols.\nTranslate business requirements into technical specifications and propose solutions.\nDesign and maintain Oracle databases to support large-scale data storage, ensuring high availability, consistency, and security.\nConduct advanced research on emerging technologies to propose solutions for business challenges.\nCollaborate with product managers, designers, and other developers to define and deploy new features.\nHybrid: Remote work permitted 2 days/week. Must work from Greenwich, CT office 3 days/week\nRequires:\nMaster’s degree or foreign equivalent in Computer Science or related field and Three (3) years of experience as a Software Developer or a related position developing with Java.\n\n3 years of professional experience with server-side java programming, J2EE, and Spring Framework.\n3 years of experience developing RESTful web services, and microservices.\n3 years of experience using Oracle and SQL to perform data maintenance and analysis.\n3 years of experience with distributed systems and algorithms.\n3 years of experience with integration frameworks, and patterns.\n3 years of experience with AWS ecosystem and products.\n3 years of experience with Linux systems.\n\n2 years of experience with Python scripting for automation, data processing and analysis.\n2 years of experience with ElasticSearch including fuzzy search optimization and index management.\n2 years of experience in Artificial Intelligence and Machine Learning domain.\nSend resume with cover letter to IBG LLC, Attn: A.Torres Ref:HJ2026, . No calls. 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