**Position Overview** We are seeking a highly skilled and experienced **Senior Infrastructure & Specialist** to join our India Equities Technology team. In this role, you will be responsible for ensuring the high availability, reliability, and performance of our mission-critical, high-frequency trading (HFT) infrastructure and applications. The ideal candidate will possess a strong background in capital markets, hands-on expertise in Linux/Unix environments, deep knowledge of the FIX protocol, and a proven track record of supporting high-touch trading desks, Direct Market Access (DMA), and algorithmic trading platforms. You will bridge the gap between infrastructure operations, development teams, and business stakeholders to maintain a seamless trading workplace. **Key Responsibilities** **1. Infrastructure & Environment Management** + **Environment Maintenance:** Manage and maintain multi-tier UAT and Production environments, ensuring system stability, configuration consistency, and readiness for daily trading activities. + **Batch Scheduling & Automation:** Design, configure, monitor, and troubleshoot batch jobs using **Autosys** to automate critical operational workflows and data processing. + **System Operations:** Perform daily Start of Day (SOD) and End of Day (EOD) activities on Linux systems to guarantee environment availability for live trading. + **Database Support:** Query and manage relational databases (SQL, Postgres, Oracle) to fetch data, analyze table partitions, and support data warehousing requirements. **2. Application & Connectivity Support** + **FIX Connectivity Management:** Lead the functional enhancement, configuration, and monitoring of the **FIX connectivity platform** . Manage client onboarding, UAT testing, and certification of FIX algos. + **Trading Desk Support:** Provide on-floor L1/L2 production support to high-touch trading desks for equities, futures, and options, as well as DMA and algorithmic trading desks. + **Exchange Connectivity:** Coordinate and execute exchange connectivity tasks, including uploading exchange files, margin/position files, and participating in regular exchange mock trading sessions (e.g., NSE/BSE).



+ **Vendor & Developer Collaboration:** Act as the primary technical liaison with third-party application vendors (e.g., Omnesys, Traderpath) and internal development teams to resolve complex application bugs and deploy backend fixes. **3. Monitoring, Incident & Change Management** + **Proactive Monitoring:** Utilize enterprise monitoring tools such as **ITRS Geneos** to track system health, latency, and connectivity, proactively addressing alerts before they impact the business. + **Incident Resolution:** Own and manage production incidents from detection through to resolution. Perform root cause analysis (RCA) and raise/track tickets in **ServiceNow** and **Jira** . + **Change & Release Management:** Schedule, coordinate, and deploy production changes, software packages, and drivers on servers during non-market hours, adhering to strict change control policies. + **Regulatory Reporting:** Ensure timely processing and transfer of operational and transaction files (e.g., OTR files) to regulatory bodies (e.g., SEBI) and clients. **Required Technical Skills & Qualifications** **Experience & Education** + **Experience:** Minimum of 7+ years of experience in production support, application support, or infrastructure operations within the Capital Markets / Investment Banking domain. + **Education:** Bachelor's degree in Engineering (Electronics & Telecommunications, Computer Science, or a related technical field). **Technical Competencies** + **Operating Systems:** Strong administration and troubleshooting skills in **Linux/Unix** and Windows environments. + **Scripting:** Proficiency in **Unix Shell Scripting** for task automation, log analysis, and data extraction. + **Protocols:** Deep understanding of **FIX Protocols** (session and application levels) and FIX configuration. + **Databases:** Solid experience writing SQL queries and working with **Postgres, Oracle, or SQL Server** .



+ **Tools & Applications:** + _Scheduling:_ Autosys + _Monitoring:_ ITRS Geneos + _Ticketing/Collaboration:_ ServiceNow, Jira + _Trading Applications:_ Experience with trading platforms (e.g., Omnesys, Traderpath, Gatelab HFT, Bloomberg) is highly desirable. **Soft Skills & Domain Knowledge** + **Domain Expertise:** Comprehensive understanding of capital markets, equity/derivatives trading lifecycles, and high-frequency trading (HFT) concepts. + **Stakeholder Management:** Ability to collaborate effectively with diverse stakeholders, including Institutional Sales, Execution Traders, QA, Compliance, and external vendors. + **Problem-Solving:** Exceptional analytical skills with the ability to perform under pressure during live market hours. ------------------------------------------------------ **Job Family Group:** Technology ------------------------------------------------------ **Job Family:** Infrastructure ------------------------------------------------------ **Time Type:** Full time ------------------------------------------------------ **Most Relevant Skills** Please see the requirements listed above. ------------------------------------------------------ **Other Relevant Skills** For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ _Citi 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._ _If 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 (https://www.citigroup.com/citi/accessibility/application-accessibility.htm)_ _._ _View Citi's_ _EEO Policy Statement (https://www.citigroup.com/global/eeo-aa-policy)_ _and the_ _Know Your Rights (https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12ScreenRdr.pdf)_ _poster._ Citi is an equal opportunity and affirmative action employer. Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.

📌 Omnesys Platform Lead (Mumbai)
🏢 Citigroup
📍 Mumbai