TL;DR

API Integrator (Fintech): Building and maintaining REST-based integrations between internal trading/pricing systems and external platforms like SIMON, Luma, and HALO with an accent on secure authentication and data mapping. Focus on designing scalable API contracts, ensuring reliable system connectivity for capital markets workflows, and supporting production rollouts.

Location: NYC (Hybrid – at least 3 days onsite/week). Must be based in the US. Visa sponsorship limited to TN/E-2 treaty-based visas only.

Salary: $120,000 – $145,000 USD

Company

Talan is an international consulting and technology expertise group providing transformation solutions for industries like investment banking, finance, and energy with a strong global presence.

What you will do

  • Design and build REST-based API integrations for external platforms like SIMON, Luma, and HALO.
  • Integrate external vendor platforms with internal pricing, booking, and lifecycle management systems.
  • Implement and manage API security protocols including OAuth2 and token-based authentication.
  • Define API contracts, data models, and payload mappings for seamless data exchange.
  • Handle error management, idempotency, and performance monitoring for critical trading data flows.
  • Coordinate with front-office, trading, and quant teams to translate requirements into technical solutions.

Requirements

  • Bachelor’s degree in Computer Science, Engineering, Finance, or Quantitative Finance.
  • 4+ years of relevant experience in API integration or backend development.
  • Strong experience with REST APIs and system integration patterns.
  • Must be eligible to work in the US (Visa sponsorship limited to TN/E-2 only).
  • Deep knowledge of API security (OAuth2, bearer tokens).
  • Experience working in Front Office or Capital Markets environments.

Nice to have

  • Familiarity with SIMON, Luma, or HALO platforms.
  • Experience with structured products or derivatives.
  • Knowledge of cloud-based integration patterns.
  • Ability to collaborate with diverse teams including IT, trading, and quant departments.

Culture & Benefits

  • 401(k) retirement plan with company matching.
  • Comprehensive health, dental, and vision insurance plans plus FSA.
  • 15 days of paid vacation annually, increasing with seniority, with cash-out for unused days.
  • 8 paid holidays, 5 sick days, and 2 personal days per year.
  • Commuter and transit benefits.
  • Company supportive of work-life balance and employee well-being.