Omnesys Platform Lead

Omnesys Platform Lead Job Req :

Mumbai, Maharashtra, India

Hybrid

Sep. 04, 2026

Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

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 environment.

• 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.

• 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, Trader path) and internal development teams to resolve complex application bugs and deploy backend fixes.

• 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
  Service Now
  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.

• 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…