{"id":1694774,"url":"https://alion.io/job/interactive-brokers-senior-software-developer-python","title":"Senior Software Developer - Python","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":"2026-10-04T05:45:00Z"}},"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":131000,"max_usd":242000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":2304},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C++","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"NumPy","optional":false},{"name":"Pandas","optional":false},{"name":"Polars","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"ETL/ELT","optional":true}],"status":"live","first_seen_at":"2026-06-30T10:00:00Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-05T02:19:24Z","board_verified":true,"closed_at":null,"days_open":96,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":95},"description":"This is a hybrid role (3 days in the office/2 days remote).\nAbout your team:\nThe Financial Crimes Surveillance team develops and maintains sophisticated systems that detect and prevent fraud, market manipulation, and money laundering across Interactive Brokers' global platform. In this role, you'll architect, implement, optimize, and maintain large-scale data pipelines and surveillance models that process massive volumes of financial data. The team consists of software engineers, data engineers, compliance specialists, and data scientists working on mission-critical infrastructure that directly protects the integrity of the financial system.\nThe Scale & Impact:\nProcess 1+ billion order events and 6+ million trades daily\nProtect 4.5+ million client accounts\nDirect impact on financial security and regulatory compliance\nWhat will be your responsibilities within IBKR:\nTechnical Excellence\nDesign, optimize, and extend transaction surveillance and data pipeline processes to enhance system efficiency, reliability, and scalability\nNavigate seamlessly between strategic, system-level architecture and function-level implementation details of our surveillance system, which orchestrates 150+ processes\nOptimize data architectures and databases for maximum performance and reliability\nBuild developer tooling to accelerate development workflows and system monitoring\nEnsure data accuracy, security, and compliance with regulatory standards \nOwnership and Cross-Functional Partnership\nTake ownership of projects and sub-systems from planning through resolution, making impactful decisions on complex technical and business-related questions\nCollaborate effectively with quantitative engineers, surveillance model developers, and Compliance stakeholders to translate complex business requirements into scalable designs and processes\nIdentify project bottlenecks, risks, and limitations; calculate costs; and provide strategic insights to stakeholders\nTransform high-level surveillance concepts into production-ready processes that deliver actionable insights\nData Architecture & Stewardship\nOwn and curate dozens of mission-critical datasets that drive surveillance operations\nDesign, build, and automate robust data pipelines to support real-time and batch processing\nDevelop advanced data quality frameworks to proactively identify issues before they impact operations\nInnovation & Optimization\nContribute to the evolution of coding standards and internal code review processes\nDrive best practices in data storage, retrieval, governance, and privacy protection\nDrive automation of processes and workflows to reduce manual effort and enhance system maintainability\n Which skills are required:\n5+ years of professional software engineering experience in Python, C++ or Java\n3+ years of professional experience in Python as a primary language (non-scripting)\nExtensive experience in Polars, Pandas or NumPy\n1-3 years of professional experience with Linux operating systems\nThorough understanding of databases and SQL\nExperience with large Python codebases\nBachelor's or master's degree in Computer Science, or a related area\nHigh attention to detail\nGood to Have:\nExperience with data engineering or ETL pipelines\nKnowledge of finance\nKnowledge of C++ or Java\nMasters/PhD\nTo be successful in this position, you will possess the following:\nSelf-motivated and able to handle tasks with minimal supervision.\nSuperb analytical and problem-solving skills.\nExcellent collaboration and communication (Verbal and written) skills.\nOutstanding organizational and time management skills.\nCompany Benefits & Perks\nCompetitive salary, annual performance-based bonus and stock grant\nRetirement plan 401(k) with competitive company match\nExcellent health and wellness benefits, including medical, dental, and vision benefits, and a company-paid medical healthcare premium.\nWellness screenings and assessments, health coaches and counseling services through an Employee Assistance Program (EAP)\nDaily company lunch allowance provided, and a fully stocked kitchen with healthy options for breakfast and snacks\nCorporate events, including team outings, dinners, volunteer activities and company sports teams\nEducation reimbursement and learning opportunitiesThis role's anticipated base salary range is 200,000 to 250,000 annually based on skill's and experience. The offered salary is just part of the total compensation package. In addition to a competitive salary, the company offers both a discretionary cash bonus and stock award as well as a wide range of benefits, including health care, tuition reimbursement and much more","description_format":"text","description_chars":4615,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":false,"languages":[]},"benefits":["Retirement plans"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial Services"],"lifecycle":[{"event":"open","at":"2026-10-02T11:57:18Z"}],"visa":[],"liveness":{"score":9,"band":"cold","label":"Long shot","p_open":1,"p_active":0.312,"p_room":0.28,"age_days":95,"expected_fill_days":30,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-04T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/interactive-brokers-senior-software-developer-python","json_url":"https://alion.io/job/interactive-brokers-senior-software-developer-python.json","meta":{"generated_at":"2026-10-05T02:34:29Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":3521,"day_limit":5000,"remaining_today":1479,"minute_limit":60,"resets_at":"2026-10-06T00:00:00Z"}}}