Senior Backend Engineer (Python / API Development)
Company: S3
Location: Charlotte
Posted on: April 2, 2026
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Job Description:
Job Description Senior Backend Engineer (Python / API
Development) Charlotte, NC (Hybrid – 3 Days Onsite: Mon/Tue/Thurs)
Contract: 12 Months (Potential Extension/Conversion) Rate: $57/hr
Overview We are seeking a highly hands-on Backend Engineer with
strong Python expertise to design, build, and scale modern
API-driven services within a large enterprise environment. This
role is ideal for an engineer who thrives on ownership, writes
clean and scalable code, and enjoys working in a fast-paced,
collaborative setting with a strong emphasis on continuous learning
and innovation. Key Responsibilities Design, develop, and maintain
Python-based backend services with a focus on performance and
scalability Build and support RESTful APIs , leveraging frameworks
such as FastAPI Apply strong object-oriented design principles to
develop maintainable and extensible systems Own features
end-to-end, from design through implementation, testing, and
support Collaborate closely with cross-functional teams in a hybrid
environment Leverage AI-assisted development tools (e.g., GitHub
Copilot) to enhance productivity Continuously evaluate and adopt
new tools, frameworks, and best practices Required Qualifications 4
years of backend or software engineering experience Strong
proficiency in Python (most critical skill) Experience building and
consuming REST APIs Solid understanding of object-oriented
programming (OOP) principles Experience working in Agile or
fast-paced development environments Strong problem-solving skills
and ability to take ownership of deliverables Preferred
Qualifications Experience with FastAPI or similar Python frameworks
(Flask, Django) Exposure to AI/ML tools or concepts Experience
working in financial services or regulated environments Familiarity
with database design , querying, and performance optimization
Ability to contribute to light front-end/UI development when needed
Work Environment Hybrid schedule: 3 days onsite in Charlotte
(Mon/Tue/Thurs) Collaborative, execution-focused team Strong
emphasis on learning, experimentation, and modern engineering
practices
Keywords: S3, Greensboro , Senior Backend Engineer (Python / API Development), IT / Software / Systems , Charlotte, North Carolina