{"id":2010739,"url":"https://alion.io/job/cboe-senior-software-engineer-realtime","title":"Senior Software Engineer (Realtime)","company":{"id":47851,"name":"Cboe","domain":"cboe.com","url":"https://alion.io/company/cboe","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":"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":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":89000,"max_usd":174000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":107},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-09-16T00:06:24Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-08T22:10:28Z","board_verified":true,"closed_at":null,"days_open":23,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":23},"description":"Join Cboe Europe, one of the largest pan-European equities markets, as a Senior Software Engineer. You will be responsible for building and operating the technology behind our trading systems, working closely with both European and US teams. Your role will involve designing and implementing high-performance C++ functionality, mentoring other engineers, and providing technical support. A strong background in modern C++, Linux environments, and real-time trading systems is required.\nMissions\nDesign, implement, and extend high-performance C++ functionality across multiple Equities Trading Environments.\nTake ownership of features end-to-end, coordinating with other engineers and business stakeholders from design through to delivery.\nMentor other software engineers, and act as subject matter expert for one or more of our systems.\nProfil recherché\n - A proactive mindset, strong communication skills, and comfort working directly with stakeholders across the business- Experience mentoring or supporting the development of less experienced engineers\n- A track record of taking ownership of features or projects from design through to production\n- Significant experience working with modern C++ (C++11 at a minimum, C++20 is a plus), including implementing low-level, high-performance solutions\n- Experience working and developing for Linux environments\n- Degree in Computer Science, Electrical Engineering or similar fields\n- Exposure to low-latency or real-time trading systems\n- Experience with SQL and relational databases, and Python","description_format":"text","description_chars":1543,"description_truncated":false,"requirements":{"experience_years_min":null,"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":["Marketplaces","Cryptocurrencies","E-learning","Stock Exchanges & Market Infrastructure"],"lifecycle":[{"event":"open","at":"2026-10-07T13:02:03Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Senior or Specialist Worker, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Senior or Specialist Worker; Skilled Worker","cap_exempt":false,"checked_at":"2026-10-08T06:20:15+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":48,"band":"ok","label":"Likely open","p_open":1,"p_active":0.639,"p_room":0.75,"age_days":22,"expected_fill_days":23,"reasons":["conf:0","win:late"],"computed_at":"2026-10-08T05:49:30Z"},"pay":null,"html_url":"https://alion.io/job/cboe-senior-software-engineer-realtime","json_url":"https://alion.io/job/cboe-senior-software-engineer-realtime.json","meta":{"generated_at":"2026-10-09T00:16:30Z","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","counted_by":"address","units_charged":1,"used_today":216,"day_limit":5000,"remaining_today":4784,"minute_limit":60,"resets_at":"2026-10-10T00:00:00Z"}},"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":47851},"rest":"https://alion.io/mcp/rest/get_company?id=47851"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcboe-senior-software-engineer-realtime"},{"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%2Fcboe-senior-software-engineer-realtime"},{"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%2Fcboe-senior-software-engineer-realtime"},{"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/cboe-senior-software-engineer-realtime\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcboe-senior-software-engineer-realtime"}]}