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Senior Backend Developer (Python / Node.js) (contract)

Wells Fargo
Wells Fargo Salary
Abrams, WI Contractor
POSTED ON 8/4/2026
AVAILABLE BEFORE 12/2/2026

Description

Title: Senior Backend Developer (Python / Node.js)

Location: Wisconsin, WI

Duration: 12 months

Work Engagement: W2

Work Schedule: Hybrid 3 days in office/2 days remote

Benefits on offer for this contract position: Health Insurance, Life insurance, 401K and Voluntary Benefits

Summary:

We are seeking a highly skilled Senior Backend Developer with strong expertise in Python and Node.js to design, develop, and optimize scalable, high-performance applications. This role will be responsible for building robust backend services, integrating third-party systems, and collaborating across engineering teams to deliver innovative software solutions. The ideal candidate has a passion for clean code, modern architecture, and mentoring fellow developers.

Key Responsibilities:

Design & Development: Architect, design, and develop scalable and efficient back-end solutions using Python and Node.js.
  • System Integration: Integrate various APIs, databases, and third-party services into the existing system architecture.
  • Code Quality: Write clean, maintainable, and well-documented code while following best practices in coding, testing, and deployment.
  • Performance Optimization: Identify performance bottlenecks and optimize applications for maximum speed and scalability.
  • Collaboration: Work closely with front-end developers, DevOps, and other stakeholders to ensure seamless integration and deployment of applications.
  • Mentorship: Provide guidance, mentorship, and technical leadership to junior developers and team members.
  • Problem Solving: Analyze complex problems and develop innovative solutions to address technical challenges.
  • Continuous Improvement: Stay up-to-date with the latest trends and technologies in software development and suggest improvements to current processes and tools.
  • Testing & Debugging: Develop and execute unit and integration tests to ensure the reliability and stability of the applications.
  • Documentation: Maintain comprehensive documentation for the developed solutions, including design specifications, user guides, and technical manuals.

Key Requirements:

  • Applicants must be authorized to work for ANY employer in the U.S. This position is not eligible for visa sponsorship.
  • Proficiency: 5 years of professional experience in software development, with a focus on Python and Node.js.
  • Language Expertise: 5 years of strong proficiency in Python (Django, Flask) and Node.js, with a solid understanding of JavaScript/TypeScript.
  • Back-End Expertise: Experience in building RESTful APIs, microservices, and server-side applications.
  • Database Knowledge: Proficiency in working with relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Redis).
  • Cloud Services: Experience with cloud platforms like AWS, Azure, or Google Cloud, and familiarity with DevOps practices.
  • Version Control: Strong experience with Git and version control workflows.
  • Agile Methodology: Experience working in Agile/Scrum development environments.
  • Problem-Solving Skills: Excellent problem-solving skills and the ability to work independently and collaboratively in a fast-paced environment.
  • Communication: Strong verbal and written communication skills, with the ability to effectively collaborate with technical and non-technical stakeholders.

Preferred Qualifications:
  • Front-End Knowledge: Basic understanding of front-end technologies such as React, Angular, or Vue.js.
  • CI/CD Pipelines: Experience in setting up and managing CI/CD pipelines.
  • Containerization: Familiarity with Docker and Kubernetes for containerization and orchestration.
  • Testing Frameworks: Experience with testing frameworks such as Jest, Mocha, PyTest, or others.

Benefits:

Health Insurance, 401K Plan, Vacation & Paid Time Off

Salary : $68,045 - $111,564

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