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Sr Backend Python Developer Jobs in Wisconsin (NOW HIRING)

Worldpay, Inc.

Backend Engineer

Milwaukee, WI

$97.94K - $195.66K/yr

As a Senior Software Engineer, your day will be filled with exciting challenges and opportunities ... Engage in full-stack development, from backend systems to user interfaces. Work with technologies ...

FIS

Backend Engineer

Milwaukee, WI

$97.94K - $195.66K/yr

As a Senior Software Engineer, your day will be filled with exciting challenges and opportunities ... Engage in full-stack development, from backend systems to user interfaces. Work with technologies ...

Us Venture

Senior AI Engineer

Green Bay, WI · On-site

$101.60K - $139.60K/yr

Contribute to both frontend and backend development tasks as part of a cross-functional team ... Proficiency in multiple programming languages, frameworks, and technologies such as Python, SQL ...

Johnson Controls

Sr. AI/ML Engineer

Milwaukee, WI

$100K - $140K/yr

Strong backend/API development (Python and/or C#/.NET) * Experience with LLMs and agent-based ... Strong DevOps experience (Azure DevOps, CI/CD, release management) * Experience with ...

Johnson Controls

Sr. AI/ML Engineer

Milwaukee, WI · On-site

$100K - $140K/yr

Strong backend/API development (Python and/or C#/.NET) * Experience with LLMs and agent-based ... Strong DevOps experience (Azure DevOps, CI/CD, release management) * Experience with ...

U.S. Venture, Inc.

Senior AI Engineer

Green Bay, WI · On-site

$101.60K - $139.60K/yr

Contribute to both frontend and backend development tasks as part of a cross-functional team ... Proficiency in multiple programming languages, frameworks, and technologies such as Python, SQL ...

Zendesk

Senior Fullstack Engineer, Solve

Madison, WI

$123.40K - $162.70K/yr

We're seeking a Senior Fullstack Engineer to help build Solve - an AI-powered conversation engine ... Proficiency with Python backend frameworks (FastAPI recommended) and React/TypeScript frontends.

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Sr Backend Python Developer information

What is the difference between Sr Backend Python Developer vs Backend Python Developer?

AspectSr Backend Python DeveloperBackend Python Developer
Required Experience5+ years, leadership skills1-3 years, technical skills
ResponsibilitiesDesigning architecture, mentoringImplementing features, coding
CertificationsOptional, often relevantOptional
Work EnvironmentTeam leadership, project planningDevelopment, coding tasks

The main difference between a Sr Backend Python Developer and a Backend Python Developer lies in experience, responsibilities, and leadership roles. Senior developers typically have more experience, oversee architecture, and mentor junior staff, while backend developers focus on coding and feature implementation. Both roles are essential in Python-based backend development within tech companies and share similar technical requirements.

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Sr Backend Python Developer jobs near you
Backend Developer - AI Trainer

Backend Developer - AI Trainer

DataAnnotation

Madison, WI • On-site, Remote

$60/hr

Full-time

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Join the DataAnnotation team and contribute to developing cutting‐edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for proficient programmers to help advance AI development. As a member of DataAnnotation's coding team, you'll be part of a growing community of over 100,000 professionals — including front‐end, back‐end, full‐stack, machine learning, and other engineers — who are driving real‐world impact in AI development.

Our platform offers an engaging blend of flexibility and challenge: you'll work closely with state‐of‐the‐art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work alongside a full‐time role, while others treat it as their primary focus, choosing projects and schedules that align with their availability and goals.

To get started, once you sign up for an account, you'll take a short assessment (this serves as our version of an interview). If you pass that assessment, you'll receive an email confirmation, and paid work will become available to you through our platform. Benefits Fully remote: work from anywhere in the US, Canada, UK, Ireland, Australia, and New Zealand.

Flexible schedule: choose which projects you take on and when you work. Competitive pay: projects are paid hourly, up to $60 USD/hour. Opportunities for higher‐paying projects are available with strong performance.

Impact: help shape the future of AI technologies. Responsibilities Design and solve diverse coding problems used to train AI systems with an emphasis on Android development. Write clear, high‐quality code snippets and detailed explanations.

Evaluate AI‐generated code for accuracy, performance, and clarity. Provide feedback that directly shapes the next generation of AI models. Qualifications Fluency in English (native or bilingual level).

Preferred experience in Kotlin. Proficiency in at least one of the following programming languages or frameworks: JavaScript, TypeScript, Python, C, C#, C++, React, Go, Java, or Swift. Excellent writing and grammar skills.

A bachelor's degree (completed or in progress). Previous experience as a Software Developer, Coder, Software Engineer, or Programmer is preferred. Note: Payment is made via PayPal.

We will never ask for any money from you. PayPal will handle any currency conversions from USD. This job is only available to those in the US, Canada, UK, Ireland, Australia, and New Zealand.

Those located outside of these countries will not see work or assessments available on our site at this time. #J-18808-Ljbffr

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