{"id":4175408,"url":"https://alion.io/job/edx-markets-senior-software-engineer-trading-systems","title":"Senior Software Engineer – Trading Systems","company":{"id":175604,"name":"EDX Markets","domain":"edxmarkets.com","url":"https://alion.io/company/edx-markets","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Chicago, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"AWS","optional":false},{"name":"GCP","optional":false},{"name":"JavaScript","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"WebSockets","optional":false}],"status":"live","first_seen_at":"2026-11-12T02:21:41Z","employer_posted_date":null,"last_verified_at":"2026-11-12T02:21:41Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"EDX is looking for a Senior Software Engineer to design and implement low-latency Java applications for exchange and trading systems build high-performance messaging architectures and ensure system reliability under peak load.\n\nYou will join the Engineering Department to build the next generation digital assets trading platform, helping build an entire marketplace from the ground up. You will design and implement low-latency Java applications, build high-performance event-driven systems, hunt down latency bottlenecks, and keep systems reliable under extreme market conditions. You will also join architecture discussions, mentor junior engineers, and work with infrastructure teams on OS, networking and hardware tuning. You will report to the Head of Trading Systems.\n\nResponsibilitiesDesign and implement low-latency Java applications for exchange and trading systems\nBuild and maintain high-performance messaging and event-driven architectures\nIdentify and remove latency bottlenecks through profiling, benchmarking, and production analysis\nEnsure system reliability under peak load and extreme market conditions\nParticipate in architecture discussions and mentor junior engineers\nCollaborate closely with infrastructure teams on OS, networking, and hardware tuning\n\nRequirements4+ years of professional software engineering experience delivering latency-sensitive, high-throughput backend systems\nProven experience designing and implementing complex, reliable, and scalable real-time systems with emphasis on deterministic performance, correctness, and fault tolerance\nStrong object-oriented design and implementation experience in Java with understanding of concurrency, threading models, and memory behavior\nUnderstanding of algorithms, data structures, and performance optimization techniques including profiling and benchmarking\nStart-up comfort: wear many hats in a fast-paced environment and be flexible in approach\nSkills: Java or other OO languages, Python/JavaScript or other scripting languages, Postgres, REST APIs, TCP/UDP, Kafka, Aeron, Websockets, AWS or GCP","description_format":"text","description_chars":2082,"description_truncated":false,"requirements":{"experience_years_min":null,"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":["Crypto Exchanges"],"lifecycle":[{"event":"open","at":"2026-11-12T15:54:10Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":36,"reasons":["seen:0","win:early"],"computed_at":"2026-11-12T18:10:49Z"},"pay":null,"html_url":"https://alion.io/job/edx-markets-senior-software-engineer-trading-systems","json_url":"https://alion.io/job/edx-markets-senior-software-engineer-trading-systems.json","meta":{"generated_at":"2026-11-12T18:10:49Z","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":38185,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":175604},"rest":"https://alion.io/mcp/rest/get_company?id=175604"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fedx-markets-senior-software-engineer-trading-systems"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fedx-markets-senior-software-engineer-trading-systems"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fedx-markets-senior-software-engineer-trading-systems"},{"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/edx-markets-senior-software-engineer-trading-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fedx-markets-senior-software-engineer-trading-systems"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4175408}},{"tool":"search_jobs","arguments":{"company":"edxmarkets.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4175408},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}