Senior Python Backend Developer (Microservices, FastAPI & GenAI)

Date Posted: 10/07/2026

Hiring Organization: Rose International

Position Number: 508796

Industry: Financial Services

Job Title: Senior Python Backend Developer (Microservices, FastAPI & GenAI)

Job Location: Rutherford, NJ, USA, 07070

Work Model: Hybrid

Work Model Details: 3 days onsite and 2 days remote

Shift: Standard Work Hours

Employment Type: Temp to Hire

FT/PT: Full-Time

Estimated Duration (In months): 6

Min Hourly Rate($): 80.00

Max Hourly Rate($): 92.00

Must Have Skills/Attributes: ETL, LLM (Large Language Model), Microservices, MySQL, Python, REST

Experience Desired Backend Python development, REST APIs, microservices, and ETL/data pipelines experience (5-7 yrs),

Python backend engineering, distributed systems, and data processing experience (5-7 yrs),

Experience with distributed data tools (e.g., Hadoop, Spark, Hive) (5-7 yrs),

Familiarity with LLMs and GenAI technologies (5-7 yrs)

Required Minimum Education: Bachelor’s Degree

**C2C is not available**

Job Description Required Education

• Bachelor’s degree in Computer Science, Data Science, Engineering, or related field

Required Qualifications/Skills/Experience

• 5–7 years of experience developing backend systems and services using Python
• Strong proficiency in Python and related libraries (e.g., NumPy, Pandas)
• Experience building REST APIs and working in microservices or service-oriented architectures
• Experience with data processing, ETL pipelines, or data engineering concepts
• Familiarity with LLMs and GenAI technologies
• Understanding of distributed systems and backend integration patterns
• Ability to work independently and collaboratively in a global team

Preferred Qualifications/Skills/Experience

• Experience with distributed data tools (e.g., Hadoop, Spark, Hive)
• Knowledge of databases (e.g., MySQL or other relational databases)
• Familiarity with containerization (Docker) and orchestration (Kubernetes/OpenShift)
• Background in financial services, banking, or risk environments
• Experience with AI developer tools such as Copilot

Overview This is a development position responsible for designing, building, and implementing scalable backend applications and microservices within the Technology team. The role focuses on developing robust Python-based services, APIs, and data processing systems that support enterprise applications and analytics.

As part of this role, you will be responsible for data extraction and analysis from structured and unstructured sources, while leveraging emerging technologies such as LLMs and GenAI to deliver efficient and innovative backend solutions to complex business problems.

Job Duties

• Design, develop, and implement scalable backend systems using Python, with a focus on microservices and API-driven architecture
• Build and maintain RESTful APIs and backend services for data ingestion, processing, and integration
• Develop data processing pipelines to handle structured and unstructured data
• Collaborate with global Technology teams across multiple time zones in a hybrid environment
• Apply Object-Oriented Programming (OOP) principles and backend engineering best practices
• Drive resolution of complex technical challenges through analysis of system flows and business processes
• Ensure solutions align with enterprise architecture, performance, and scalability requirements
• Establish and follow standards for coding, testing, debugging, and deployment in backend environments
• Perform data extraction, transformation, and analysis to support business use cases
• Implement unit testing and TDD to ensure reliability and maintainability of backend services
• Contribute to the microservices ecosystem, including service integration and inter-service communication
• Support the integration of LLMs and GenAI capabilities into backend systems and workflows
• Mentor junior developers and promote strong engineering and coding standards
• Identify and manage risks, ensuring compliance with policies, regulatory requirements, and governance standards
• **Only those lawfully authorized to work in the designated country associated with the position will be considered.**
• **Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**

Benefits For information and details on employment benefits offered with this position, please visit here. Should you have any questions/concerns, please contact our HR Department via our secure website.

California Pay Equity For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website here.

Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances. If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, please contact our HR Department. Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).