{"id":3148593,"url":"https://alion.io/job/citi-fixed-income-senior-algo-developer","title":"Fixed Income Senior Algo Developer","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":512,"ghost_share":0.006,"stale_share":0.131,"repost_share":0.072,"time_to_fill_p50_days":9,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Sales","role_family":"Sales","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":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":83000,"max_usd":162000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":138},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Java","optional":false},{"name":"Rust","optional":false},{"name":"Docker","optional":true},{"name":"Git","optional":true},{"name":"Jenkins","optional":true},{"name":"OpenShift","optional":true}],"status":"live","first_seen_at":"2026-10-23T11:19:44Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-11-01T00:39:07Z","board_verified":true,"closed_at":null,"days_open":8,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":8},"description":"Team Overview\nThe Fixed Income Technology group is a global team responsible for the design, development, and support of the trading and risk management systems used by the Fixed Income business. Our platforms are a critical part of Citi's markets infrastructure, processing millions of trades and calculating risk for a multi-billion-dollar portfolio. We are a fast-paced, results-oriented team that values innovation, collaboration, and technical excellence. We work in close partnership with traders, quants, and other business stakeholders to deliver cutting-edge solutions that drive business growth.\nRole Overview\nWe are seeking a highly skilled and experienced lead engineer to join our Fixed Income Technology team, specializing in low-latency Algo trading. As a Senior Vice President, you will be a key technical leader responsible for the architecture, design, and implementation of our next-generation cross-asset Algo platform including pricing, hedging and execution systems. This is a hands-on role that combines deep technical expertise in Java and Rust with leadership and a strategic mindset. You will lead complex, business-critical projects, mentor talented engineers, and drive the adoption of modern technologies and best practices in high-performance computing.\nKey Responsibilities\nTechnical Leadership: Lead the architectural design and development of high-performance, low-latency Algo platform including pricing, hedging and execution systems for Fixed Income products.\nHands-On Development: Engage in active, hands-on coding in Java and Rust, contributing to the core codebase and setting standard for quality, performance, and reliability.\nSystem Architecture: Define and drive the long-term technology vision for the order management platform, ensuring it is scalable, resilient, and aligned with business goals.\nLow-Latency Optimization: Design, implement, and optimize trading workflows for ultra-low latency, ensuring minimal processing time from order receipt to execution, including tuning of the underlying hardware, operating system and network stack.\nStakeholder Collaboration: Partner closely with front-office traders, quants, and product managers to understand business requirements and translate them into robust technical solutions.\nMentorship & Guidance: Mentor and coach junior and mid-level engineers, fostering a culture of technical excellence, innovation, and continuous learning.\nProduction Support: Act as a senior escalation point for resolving complex production issues, ensuring the stability and integrity of the trading platform.\nQualifications & Skills\nExperience: Extensive professional software development experience, with a significant portion in a front-office role focused on low-latency Algo trading.\n Domain Knowledge: Deep understanding of Fixed Income products across both Rates (e.g., government bonds, interest rate futures, swaps and other rates derivatives) and Credit (e.g., investment grade and high yield corporate bonds, CDS single names, CDX/iTraxx indices, credit ETFs and portfolio trading), including their pricing, risk sensitivities and hedging relationships, together with electronic trading concepts, market data, and the trade lifecycle is essential.\n Market Microstructure (good to have): Working knowledge of market microstructure across the Fixed Income venues used for hedging, such as CME, Eurex, ICE, MTS, BrokerTec (BTEC) and FMX, including order book dynamics, matching engine behavior, order types, and venue-specific protocols and latency characteristics.\nTechnical Expertise:Expert-level proficiency in Java and Rust, with a strong emphasis on performance-critical, low-latency programming.\nQuant Containers: Proven experience in the design, development, and maintenance of Fixed Income quant pricing containers is essential.\nDemonstrable expertise in building and optimizing low-latency pricing, hedging and execution systems\nSolid hands-on experience in integrating with and managing vendor connectivity (e.g., Redline, ION)\nStrong knowledge and practical experience in designing and implementing robust pricing, hedging and execution systems for ultra-low-latency environments\n High-Performance Messaging: Strong knowledge of high-performance messaging middleware (e.g., Aeron, Solace) and low-latency data handling techniques.\n Low-Level Performance Tuning: Hands-on experience tuning hardware, OS and network stack for low-latency infrastructure, including CPU isolation and thread pinning, NUMA-aware memory layout, kernel-bypass networking (e.g., Solarflare/Onload, DPDK), interrupt affinity, huge pages, and JVM/GC tuning for predictable tail latency.\nProven experience designing and building complex, distributed, and fault-tolerant systems.\nExperience with modern development tools, including Git, Jenkins, and containerization technologies (e.g., Docker, OpenShift).\n\nLeadership: Demonstrable experience leading software projects, mentoring engineers, and making key architectural decisions.\nProblem Solving: Exceptional analytical and problem-solving skills, with the ability to tackle complex challenges under pressure.\nCommunication: Excellent communication and interpersonal skills, with the ability to articulate complex technical concepts to both technical and non-technical audiences.\nEducation: Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, or a related field.\n------------------------------------------------------\nJob Family Group:\nTechnology------------------------------------------------------\nJob Family:\nApplications Development------------------------------------------------------\nTime Type:\nFull time------------------------------------------------------\nMost Relevant Skills\nPlease see the requirements listed above.------------------------------------------------------\nOther Relevant Skills\nFor complementary skills, please see above and/or contact the recruiter.------------------------------------------------------\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":6492,"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":["Continuous learning"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cards & Card Issuing","Wealth Management & Financial Advisors","Payment Processing & Gateways","Investment Banking & M&A Advisory"],"lifecycle":[{"event":"open","at":"2026-10-23T11:19:44Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.844,"p_room":0.75,"age_days":8,"expected_fill_days":9,"reasons":["conf:5","velocity","win:late","comp:brand"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/citi-fixed-income-senior-algo-developer","json_url":"https://alion.io/job/citi-fixed-income-senior-algo-developer.json","meta":{"generated_at":"2026-11-01T07:56:35Z","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":12252,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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-fixed-income-senior-algo-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%2Fciti-fixed-income-senior-algo-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%2Fciti-fixed-income-senior-algo-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/citi-fixed-income-senior-algo-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fciti-fixed-income-senior-algo-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3148593}},{"tool":"search_jobs","arguments":{"company":"citi.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3148593},"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"}}