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GMG MASS logo

G MASS

New York

Lead Business Analyst, Calypso Equity Swaps.

CONTRACTSENIOR LEVELFINANCE & LEGAL

G MASS are working with a global financial services firm is moving its equity swap business off an outsourced service and onto its own Calypso SaaS environment. They are looking for a senior business analyst to lead the analysis end to end, act as the firm’s expert voice opposite the implementation partner, and hand over a documented, SOX-compliant operating model that the BAU team can run and build on.

The role is office-based in New York five days a week, engaged through G MASS on contract, with a route to a permanent position.

What you’ll be doing

  • Documenting exactly what the current outsourced service delivers, including the spreadsheet and VBA logic behind it, and capturing it in a form the firm owns.
  • Working with senior business stakeholders to agree which activities will be run in-house after the move, then designing the procedures for each.
  • Writing and maintaining requirements for single-name and basket swaps, and keeping a frequently shifting scope under control through a clear change process.
  • Reviewing the implementation partner’s designs, estimates and change requests, and putting forward evidenced challenge where they fall short of the requirement or standard Calypso practice.
  • Validating the full equity swap lifecycle in Calypso, from trade setup and resets through to collateral, settlement and accounting.
  • Designing and running data migration, reconciliation of migrated data and the parallel run.
  • Leading UAT with the business and assembling the evidence and sign-off pack that auditors will rely on.
  • Building the risk and control matrix, retiring the spreadsheet as a control, and assigning any vendor-required controls to named internal owners.

Requirements

  • 8+ years across equity swaps operations and business analysis, including at least one significant Calypso implementation or migration.
  • Hands-on Calypso functional experience with equity swaps (equity-linked or portfolio swaps), TRS or CFDs.
  • Strong knowledge of the equity swap lifecycle, covering resets, financing accruals, notional changes, dividends, corporate actions and collateral.
  • At least one migration from an outsourced service or legacy platform, including data migration and a parallel run.
  • Experience designing and evidencing controls in a SOX or equivalent environment.
  • A track record of challenging a vendor or implementation partner with evidence, and the confidence to hold a position with demanding business stakeholders.
  • Excellent written analysis across requirements, process maps, control descriptions and procedures.

Nice to have

  • Synthetic prime brokerage, or experience acting as swap counterparty to funds or ETF issuers.
  • US regulatory reporting for security-based swaps.
  • Calypso configuration literacy (static data, workflows, scheduled tasks, accounting rules, data uploads) without being a developer.
  • Experience replacing spreadsheet tools with controlled system processes.
  • SQL or Python for reconciliation and data checks.

Benefits

Location: New York, in the office five days a week by default

Engagement: Contract through G MASS on an initial six month basis. Option to convert to a permanent role.

Pay
Not stated
Where
New York · United States
Work
Not stated
Type
Contract
Posted
11 Nov, 2026
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