Job Description

Our client, a major bank in New York City, is looking for Senior Python UI Developer Consultant

3-6 months initial contract with possibility for extensions and option to hire.
5 days on-site in NYC Office

** Must be authorized to work for ANY employer in US - NO H1 Visa support for this role

Rate: $65-70/h on W2, possible C2C as well.

Python UI Developer Consultant

Duties & Responsibilities

• Design, develop, and implement enterprise-grade RESTful API integrations supporting Structured Products and Derivatives businesses.
• Build seamless connectivity between internal pricing, trading, and risk platforms and external vendor platforms including SIMON, Luma, HALO, and similar structured products ecosystems.
• Collaborate with Front Office Trading, Sales, Quantitative Research, Product Control, and Technology teams to define integration requirements and deliver production-ready solutions.
• Design and maintain API contracts, payload mappings, data transformation frameworks, and integration specifications.
• Implement secure authentication and authorization mechanisms using OAuth2, API Keys, Bearer Tokens, and related security standards.
• Develop scalable and resilient distributed systems capable of supporting high-volume trading and transaction workflows.
• Implement comprehensive monitoring, logging, alerting, retry mechanisms, and error handling frameworks to ensure operational stability.
• Support the complete trade lifecycle, including trade capture, pricing, execution, allocation, and downstream processing.
• Participate in architecture reviews, code reviews, production support, and system optimization initiatives.
• Work closely with infrastructure and DevOps teams to support deployment automation and platform reliability.
• Produce technical documentation, integration specifications, and support procedures.

Required Skills
Technical Skills

• Strong experience developing RESTful APIs and enterprise integration solutions.
• Expertise with API design, implementation, and lifecycle management.
• Experience with:
  • OAuth2 Authentication
  • Bearer Token Authentication
  • API Key Security Models
• Strong knowledge of JSON, XML, and API payload design.
• Experience implementing:
  • Error handling frameworks
  • Retry logic
  • Idempotency controls
  • Monitoring and observability solutions
• Experience building distributed and event-driven systems.
• Strong understanding of application security and secure communication protocols.
• Experience working within cloud-enabled and enterprise application environments.

Capital Markets Experience

• Strong knowledge of Structured Products.
• Experience with Derivatives products and workflows.
• Understanding of the end-to-end Trade Lifecycle.
• Experience supporting front-office trading platforms.
• Direct experience integrating with one or more vendor platforms such as:
  • SIMON
  • Luma
  • HALO

Soft Skills

• Ability to work effectively with Trading, Sales, Quantitative Research, and Technology teams.
• Strong communication and stakeholder management skills.
• Proven ability to deliver solutions within fast-paced front-office environments.
• Strong analytical and problem-solving capabilities.

Preferred Qualifications

• Experience working within investment banking, broker-dealer, or capital markets environments.
• Familiarity with structured products issuance, distribution, and lifecycle management platforms.
• Experience with microservices architecture and cloud-native integration patterns.
• Knowledge of market data, pricing systems, and risk platforms.
• Understanding of regulatory and operational controls within financial services.

Education

• Bachelor's degree in Computer Science, Information Technology, Engineering, Mathematics, Finance, or a related discipline.
• Master's degree in a technical or quantitative field preferred.
• Relevant industry certifications are a plus.

Please email your resume or

Use this link to apply directly:
https://brainsworkgroup.catsone.com/careers/index.php-m=portal&a=details&jobOrderID=16847198

Or email: igork@brainsworkgroup.com
Check ALL our Jobs: http://brainsworkgroup.catsone.com/careers

Keywords: Python Resful API OAuth2 Authentication Security Models Bearer Token JSON XML distributed simon luma halo