{"id":2891549,"url":"https://alion.io/job/iex-software-engineer-java","title":"Software Engineer (Java)","company":{"id":41836,"name":"IEX","domain":"iex.io","url":"https://alion.io/company/iex","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","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":150000,"max":175000,"currency":"USD","period":"year","gross":null,"usd_annual":175000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Java","optional":false},{"name":"KDB+","optional":false},{"name":"Linux","optional":false},{"name":"OpenAI Codex","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-10-20T00:05:28Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-10-24T08:11:17Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Join IEX, a leading exchange focused on delivering accurate and reliable equities market data. 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This is a great opportunity for engineers who enjoy solving complex technical problems in a fast-paced market environment.\nMissions\nDesign, build, and maintain Core Java applications that support IEX’s market data publishing systems.\nContribute to application frameworks, messaging APIs, data structures, reliability, and recovery mechanisms.\nParticipate across the software development lifecycle, including development, testing, build and deployment processes, packaging, and dependency management.\nProfil recherché\n - Prior market data or trading experience is helpful but not required- Experience working in a Linux environment\n- Strong understanding of core Java concepts, including multithreading, concurrency, data structures, and application design\n- Familiarity with network programming and distributed systems concepts\n- Comfort working with lower-level programming concepts, including bit shifting and signed versus unsigned data types\n- Comfortable debugging and supporting production systems\n- Strong problem-solving skills and a collaborative approach to working across technical and operational teams\n- 3+ years of professional Java development experience, ideally supporting high-performance, real-time, or low-latency systems\n- Experience with electronic trading systems, including FIX Protocol, market data feeds, or SIP feeds\n- Experience using Codex or other AI-assisted coding tools\n- C++ experience\n- KDB+ experience\n- Familiarity with Python, Shell, or other scripting languages","description_format":"text","description_chars":1875,"description_truncated":false,"requirements":{"experience_years_min":3,"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":["Stock Exchanges & Market Infrastructure","Online Brokerage & Trading Platforms"],"lifecycle":[{"event":"open","at":"2026-10-20T02:45:59Z"}],"visa":[],"liveness":{"score":85,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.849,"p_room":1,"age_days":4,"expected_fill_days":23,"reasons":["conf:1","win:early"],"computed_at":"2026-10-24T06:02:35Z"},"pay":{"stated_usd_annual":175000,"is_top_pay":false},"html_url":"https://alion.io/job/iex-software-engineer-java","json_url":"https://alion.io/job/iex-software-engineer-java.json","meta":{"generated_at":"2026-10-24T09:20:49Z","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":13508,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":41836},"rest":"https://alion.io/mcp/rest/get_company?id=41836"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fiex-software-engineer-java"},{"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%2Fiex-software-engineer-java"},{"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%2Fiex-software-engineer-java"},{"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/iex-software-engineer-java\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fiex-software-engineer-java"}]}