Python User Interface Developer

Brains Workgroup•New York City, NY

2d•Onsite

About The Position

Our client, a major bank in New York City, is looking for a Senior Python UI Developer Consultant. This is an initial 3-6 month contract with the possibility of extensions and an option to hire. The role requires 5 days on-site in the NYC Office. The company is seeking candidates authorized to work for ANY employer in the US, with NO H1 Visa support for this role. The rate is $65-70/h on W2, with possible C2C as well.

Requirements

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.
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
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.

Nice To Haves

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.
Master's degree in a technical or quantitative field.
Relevant industry certifications.

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.