Senior Python UI and API Integration Engineer (Onsite NYC)

BRAINS WORKGROUP, INC.; New York (NY); On-site; USD 90,000 - 96,000; Full time

Job summary

BRAINS WORKGROUP, INC. is seeking a Python UI Developer Consultant for a 3-6 month engagement in NYC, with on-site work five days a week. The role focuses on building enterprise-grade RESTful API integrations across pricing, trading, and risk platforms, connecting internal systems to external vendor ecosystems.

Strong API design, security, and distributed systems experience are essential. The position requires experience with Angular/React/Javascript-based UI development and collaboration with

Qualifications

• 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.

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.

Skills

RESTful APIs

API Design

OAuth2

API Security

JSON/XML

Distributed Systems

Monitoring/Observability

Cloud

Event-Driven

Python

Education

Bachelor’s in CS/IT/Engineering

Master’s in technical field

Tools

Angular

React

JavaScript

Job description

BRAINS WORKGROUP, INC. is seeking a Python UI Developer Consultant for a 3-6 month engagement in NYC, with on-site work five days a week. The role focuses on building enterprise-grade RESTful API integrations across pricing, trading, and risk platforms, connecting internal systems to external vendor ecosystems.

Strong API design, security, and distributed systems experience are essential. The position requires experience with Angular/React/Javascript-based UI development and collaboration with