{"id":164683,"url":"https://alion.io/job/jump-trading-ui-developer","title":"UI Developer","company":{"id":58634,"name":"Jump Trading","domain":"jumptrading.com","url":"https://alion.io/company/jump-trading","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":84,"open_postings":84,"ghost_share":0.19,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":102,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Frontend","role_family":"Frontend","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":["Chicago, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":200000,"max":250000,"currency":"USD","period":"year","gross":null,"usd_annual":250000},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"TypeScript","optional":false},{"name":"WebSockets","optional":false},{"name":"CI/CD","optional":true},{"name":"Helm","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2023-12-05T16:31:45Z","employer_posted_date":"2026-08-08","last_verified_at":"2026-10-28T22:54:16Z","board_verified":true,"closed_at":null,"days_open":1058,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":1057},"description":"Jump Trading Group is committed to world class research. We empower exceptional talents in Mathematics, Physics, and Computer Science to seek scientific boundaries, push through them, and apply cutting edge research to global financial markets. Our culture is unique. Constant innovation requires fearlessness, creativity, intellectual honesty, and a relentless competitive streak. We believe in winning together and unlocking unique individual talent by incenting collaboration and mutual respect. At Jump, research outcomes drive more than superior risk adjusted returns. We design, develop, and deploy technologies that change our world, fund start-ups across industries, and partner with leading global research organizations and universities to solve problems.\nJump Trading has a global team of technologists who architect, build and maintain our world-class trading platform. From optimizing our core trading engine to building custom hardware, we leverage software & hardware engineering, sophisticated front-end technologies, data science and research, to deliver the infrastructure and tools that drive our trading and business needs.\nWe are looking for an experienced UI front-end developer to join our UI platform team. We operate in a fast-paced, highly collaborative, agile environment with an emphasis on pair-programming, testing and good process to help us produce high-quality code and applications very efficiently. Our focus is on delivering business value to the firm: we aim for simplicity wherever possible but build cutting-edge UIs when the business need is clear.\nIn this role, you will be expected to build and extend our core UI platform, use the platform to build business-critical applications, and work with a wide variety of teams to help them use the platform to build their own applications. You should be very comfortable with the ecosystem of tools & techniques within the modern web development environment, and you should have a deep passion for enabling other developers to be more productive.\nSkills You'll Need:\nAt least 4+ years of professional experience building web-based UIs\nExtensive experience with React, TypeScript, WebSocket protocols, REST, and UI unit-testing\nVery comfortable working in a highly agile, collaborative methodology (sprints, pair-programming, testing, estimation, etc.)\nDeep empathy for developers who will consume your platform and foresight to deliver improvements while also managing change carefully\nReliable and predictable availability \nBonus Points:\nAn eye for quality design\nExperience with Kubernetes, Helm, containers, CI/CD pipelines\nExperience working in trading / finance.\nIf you are currently a student or recent graduate, please see our Campus postings which offer both intern and full-time opportunities.\nBenefits\nDiscretionary bonus eligibility \nMedical, dental, and vision insurance\nHSA, FSA, and Dependent Care options\nEmployer Paid Group Term Life and AD&D Insurance\nVoluntary Life & AD&D insurance\nPaid vacation plus paid holidays\nRetirement plan with employer match\nPaid parental leave\nWellness Programs\nAnnual Base Salary Range\n$200,000—$250,000 USD","description_format":"text","description_chars":3139,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Parental leave","Retirement plans","Vision insurance","Wellness"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Hedge Funds & Alternative Investments"],"lifecycle":[{"event":"open","at":"2023-12-05T16:31:45Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.191,"p_room":0.28,"age_days":1057,"expected_fill_days":102,"reasons":["conf:0","ghost","win:tail","crowd:"],"computed_at":"2026-10-28T05:59:10Z"},"pay":{"stated_usd_annual":250000,"is_top_pay":true},"html_url":"https://alion.io/job/jump-trading-ui-developer","json_url":"https://alion.io/job/jump-trading-ui-developer.json","meta":{"generated_at":"2026-10-28T23:45:44Z","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":32602,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"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":58634},"rest":"https://alion.io/mcp/rest/get_company?id=58634"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fjump-trading-ui-developer"},{"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%2Fjump-trading-ui-developer"},{"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%2Fjump-trading-ui-developer"},{"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/jump-trading-ui-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fjump-trading-ui-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":164683}},{"tool":"search_jobs","arguments":{"company":"jumptrading.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":164683},"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. 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