{"id":1719784,"url":"https://alion.io/job/citi-low-latency-java-engineer","title":"Low Latency Java Engineer","company":{"id":7841,"name":"Citi","domain":"citi.com","url":"https://alion.io/company/citi","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":100,"open_postings":327,"ghost_share":0.009,"stale_share":0.003,"repost_share":0.101,"time_to_fill_p50_days":10,"computed_at":"2026-10-06T05:45:30Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Jersey City, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":142320,"max":213480,"currency":"USD","period":"year","gross":null,"usd_annual":213480},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"Matter","optional":false},{"name":"Rust","optional":false},{"name":"Time Series Forecasting","optional":false},{"name":"UML","optional":false}],"status":"live","first_seen_at":"2026-10-02T20:07:03Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-06T22:03:12Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities.\nResponsibilities:\nPartner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements\nResolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards\nProvide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint\nUtilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation\nDevelop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals\nProvide in-depth analysis with interpretive thinking to define issues and develop innovative solutions\nServe as advisor or coach to mid-level developers and analysts, allocating work as necessary\nAppropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.\n Recommended Qualifications:\n6-10 years of relevant experience in Apps Development or systems analysis role\nExtensive experience system analysis and in programming of software applications\nExperience in managing and implementing successful projects\nSubject Matter Expert (SME) in at least one area of Applications Development\nAbility to adjust priorities quickly as circumstances dictate\nDemonstrated leadership and project management skills\nConsistently demonstrates clear and concise written and verbal communication\nEducation:\nBachelor’s degree/University degree or equivalent experience\nMaster’s degree preferred\nThis job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.\nLow Latency Java Engineer\nEngineer the future of global finance. At Citi, our Tech team doesn’t just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.\nWhat We do / The Team\nThis is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology Team. The overall objective of this role is to lead applications systems analysis and programming activities.\nThe role is to provide senior, low-latency systems and application framework engineering (skilled in Java, C++ , Rust, KDB, market data, algorithmic trading technology) within the London Based High Performance Architectures (HPA ) team. The team require a specialist on algorithmic trading systems utilities including but not limited to market data replay and back test/simulation utilities. The HPA organization are a high skilled enablement group of Subject Matter experts - who produce application frameworks and engage with application engineers to enable application Modernisation to over 100 teams across Citi with a concentration on low latency eTrading platforms in Markets Technology.\nResponsibilities include (but not limited to):\n90% hands in the Java or Rust codebase. We build microservices based event sourcing systems on a low latency in-house framework. Response times in the 10 microsecond to 100 microsecond range.\nLead integration of functions to meet goals, deploy new products, and enhance processes\nAnalyse complex business processes, system processes, and industry standards to define and develop solutions to high level problems\nProvide world class expertise in area of Java low latency development.\nUtilize advanced knowledge of supported main system flows and comprehensive knowledge of multiple areas to achieve technology goals\nConsult with end users to identify system function specifications and incorporate into overall system design\nInfluence and negotiate with senior leaders and communicate with external parties\nHappy to work with and educate and support/mentor Junior developers and less experienced senior Java developers.\nKey Skills and Experience required\nDemonstrated Subject Matter Expert (SME) in area(s) of Applications Development\nIn-depth experience with Algorithmic Trading application development, preferably in low latency environment\nDetailed comprehension and experience with Market Data handling and associated technologies (such as time-series databases e.g. KDB)\nDemonstrated leadership, project management, and development skills\nPassion for coding excellent, commercial grade, mission critical Java frameworks based on event sourcing microservices.\nComplete knowledge of modern Java, the JVM, the Linux Operating system, system calls and Kernel.\nKnowledge of TCP and other IP based network protocol technologies including hardware accelerated kernel bypass e.g. Solarflare OpenOnload\nPerformance assessment and targeted tuning.\nDesign and architectural elegance.\nExperience in implementing projects\nGreat communicator with high EQ.\nAbility to occasionally produce clear diagrammatic documentation and model key aspects in UML sequence diagrams.\nRelationship and consensus building skills\nNice to have\nBackground in C++\nThis job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.\n------------------------------------------------------\nJob Family Group:\nTechnology------------------------------------------------------\nJob Family:\nApplications Development------------------------------------------------------\nTime Type:\nFull time------------------------------------------------------\nPrimary Location:\nJersey City New Jersey United States------------------------------------------------------\nPrimary Location Full Time Salary Range:\n$142,320.00 - $213,480.00In addition to salary, Citi’s offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.\n------------------------------------------------------\nMost Relevant Skills\nPlease see the requirements listed above.------------------------------------------------------\nOther Relevant Skills\nFor complementary skills, please see above and/or contact the recruiter.------------------------------------------------------\nAnticipated Posting Close Date:\nOct 09, 2026------------------------------------------------------\nAutomated Processing and AI\nWe use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.\nImportantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.\nIllinois residents - AI Notice and Right\n------------------------------------------------------\nCiti is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.\nIf you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.\nView Citi’s EEO Policy Statement and the Know Your Rights poster.","description_format":"text","description_chars":9287,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Hybrid work","Wellness"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial Services","Wealth Management & Financial Advisors","Payment Processing & Gateways","Consumer Loans & Pawnshops"],"lifecycle":[{"event":"open","at":"2026-10-02T20:07:03Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"Filed H-1B visas in the last two years","filings_12m":0,"filings_prev_12m":1,"green_card_filings_12m":0,"median_offered_wage_usd":null,"route":null,"cap_exempt":false,"checked_at":"2026-10-03T21:08:04+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":84,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.842,"p_room":1,"age_days":3,"expected_fill_days":10,"reasons":["conf:1","velocity","win:early","comp:brand"],"computed_at":"2026-10-06T05:45:30Z"},"pay":{"stated_usd_annual":213480,"is_top_pay":true},"html_url":"https://alion.io/job/citi-low-latency-java-engineer","json_url":"https://alion.io/job/citi-low-latency-java-engineer.json","meta":{"generated_at":"2026-10-07T00:57:14Z","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":1568,"day_limit":5000,"remaining_today":3432,"minute_limit":60,"resets_at":"2026-10-08T00:00:00Z"}},"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":7841},"rest":"https://alion.io/mcp/rest/get_company?id=7841"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fciti-low-latency-java-engineer"},{"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%2Fciti-low-latency-java-engineer"},{"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%2Fciti-low-latency-java-engineer"},{"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/citi-low-latency-java-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fciti-low-latency-java-engineer"}]}