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Senior Backend Developer Jobs in Wisconsin (NOW HIRING)

NovaLink Solutions

Java Developer

Madison, WI · On-site

$51.50 - $66.50/hr

We are seeking a highly skilled and experienced Senior Java Developer with strong hands-on ... Develop and maintain Java-based backend applications, ensuring high performance and scalability.

Novalink Solutions LLC

Java Developer

Madison, WI · On-site

$78 - $85/mo

We are seeking a highly skilled and experienced Senior Java Developer with strong hands-on ... Key Responsibilities: • Develop and maintain Java-based backend applications, ensuring high ...

TIER4 GROUP

Sr. Full Stack Developer

Milwaukee, WI · Hybrid

Title: Sr Full Stack Developer Location: Milwaukee, WI preferred, willing to consider remote talent ... their backend. What's the role? Collaborate with an engineering Scrum team, providing purpose ...

Gehc

Senior Software Engineer - Digital

Waukesha, WI

$122K - $161K/yr

In this role, you will collaborate closely with architects, designers, and backend engineers to ... Work closely with senior engineers and architects to learn and grow technical skills. Required ...

GE HealthCare

Senior Software Engineer - Digital

Waukesha, WI · On-site

$122K - $161K/yr

In this role, you will collaborate closely with architects, designers, and backend engineers to ... Work closely with senior engineers and architects to learn and grow technical skills. Required ...

Headway LLC

Senior React Native Developer

Green Bay, WI · On-site

$130K - $200K/yr

Position Description As a Senior Developer at Headway, you are client and user-focused while ... Collaborate with client stakeholders across product, QA, backend, and platform teams to drive ...

Headway LLC

Senior React Native Developer

Green Bay, WI · Remote

$53 - $70/hr

Position Description As a Senior Developer at Headway, you are client and user-focused while ... Collaborate with client stakeholders across product, QA, backend, and platform teams to drive ...

EXOS

Java Developer III (160804)

Madison, WI

$51.50 - $66.50/hr

We are seeking a highly skilled and experienced Senior Java Developer with strong hands-on ... Develop and maintain Java-based backend applications, ensuring high performance and scalability.

New

MARS IT

Senior Project Manager

Milwaukee, WI · On-site

MARS Solutions Group is looking for an experienced Senior Project Manager in Milwaukee, WI . Our ... closely with engineering, platform, infrastructure, or backend development teams. Key ...

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All JobsBackend Developer JobsSenior Backend Developer JobsSenior Backend Developer Jobs in Wisconsin

Senior Backend Developer information

See Wisconsin salary details

$64.6K

$141.1K

$192.3K

How much do senior backend developer jobs pay per year?

As of Jul 9, 2026, the average yearly pay for senior backend developer in Wisconsin is $141,147.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,600.00 and $158,000.00 per year, depending on experience, location, and employer.

What does a Senior Backend Developer do?

A Senior Backend Developer is responsible for designing, building, and maintaining the server-side logic of web applications. They work with databases, APIs, and server infrastructure to ensure that applications run smoothly, securely, and efficiently. In addition to writing robust code, they often mentor junior developers, contribute to architectural decisions, and collaborate with frontend teams to deliver seamless user experiences. Their expertise is crucial for scaling applications and implementing best practices in software development.

What is L1, L2, L3, and L4 developer?

L1, L2, L3, and L4 are levels of software developers that indicate experience and skill, often used in organizations to define seniority. For a Senior Backend Developer, L3 or L4 typically signifies advanced expertise, with L4 representing the most senior or lead roles involving complex problem-solving and mentorship. These levels help structure career progression and expectations within development teams.

What is the difference between Senior Backend Developer vs Backend Developer?

AspectSenior Backend DeveloperBackend Developer
Required Experience5+ years, leadership skills1-3 years, foundational skills
ResponsibilitiesDesign architecture, mentor juniors, optimize systemsImplement features, fix bugs, write code
Skills & CertificationsAdvanced coding, system design, relevant certificationsBasic coding, database knowledge
Work EnvironmentCollaborates with cross-functional teams, often in larger projectsFocuses on individual tasks within projects

The main difference between a Senior Backend Developer and a Backend Developer lies in experience, responsibilities, and leadership. Senior Backend Developers typically have more years of experience, take on complex system design, and mentor junior staff, whereas Backend Developers focus on implementing features and fixing bugs. Both roles are essential in backend development teams, but the senior role involves more strategic and leadership duties.

What are the key skills and qualifications needed to thrive as a Senior Backend Developer, and why are they important?

To thrive as a Senior Backend Developer, you need advanced proficiency in server-side programming languages (such as Java, Python, or Node.js), deep understanding of API design, and experience with database management, often supported by a degree in computer science or related field. Familiarity with version control systems (like Git), cloud platforms (such as AWS or Azure), and relevant certifications in backend technologies are commonly required. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with cross-functional teams and mentor junior developers. These competencies ensure robust, scalable backend systems and drive successful project delivery in complex technical environments.

What engineer makes $500,000 a year?

Senior backend developers with extensive experience, specialized skills in high-demand technologies, and work at large tech companies or in executive roles can earn $500,000 or more annually. Compensation often includes base salary, bonuses, and stock options, especially in competitive markets or leadership positions.

Will AI replace backend devs?

AI is unlikely to fully replace senior backend developers, as their expertise involves designing complex systems, problem-solving, and maintaining infrastructure that requires human judgment. AI tools can automate routine tasks and assist in coding, but human oversight remains essential for architecture, security, and optimization. Backend developers will continue to adapt by integrating AI and focusing on higher-level development skills.

What are common challenges Senior Backend Developers face when leading complex projects, and how can they address them?

Senior Backend Developers often encounter challenges such as integrating legacy systems with new technologies, ensuring scalability under increased load, and coordinating cross-functional teams for seamless feature delivery. Addressing these challenges typically involves proactive architectural planning, clear communication with frontend and DevOps teams, and adopting best practices like code reviews and automated testing. Staying updated on emerging technologies and fostering a culture of knowledge sharing within the team also help in overcoming technical obstacles and driving successful project outcomes.

Is L5 at Google Senior?

L5 at Google typically corresponds to a Senior Software Engineer level, which involves significant technical expertise, project ownership, and mentorship responsibilities. It is considered a senior-level position within Google's engineering hierarchy, often requiring several years of experience and proficiency in coding, system design, and problem-solving.
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Senior Backend Developer jobs near you
AI & Machine Learning Developer

AI & Machine Learning Developer

Johnson Health Tech North America Inc

Cottage Grove, WI • On-site

Other

Medical, Dental, Life, Retirement, PTO

Re-posted 13 hours ago

Johnson Health Tech rating

8.1

Company rating: 8.1 out of 10

Based on 5 frontline employees who took The Breakroom Quiz

130th of 427 rated machine equipment manufacturers

Job description

Description


Position Overview:

Under the direction of the Sr. Director of Electrical Engineering, the AI/ML Developer - Mobile Fitness Applications will The AI/ML Developer will design and prototype advanced artificial intelligence features for Johnson Health Tech's mobile fitness applications. This role focuses on leveraging Large Language Models (LLMs) and AWS backend services to create innovative, personalized user experiences. The developer will collaborate closely with client-side Android developers to integrate these features into production applications.


Responsibilities:

Research, design, and implement AI/ML solutions for mobile fitness applications.

Develop and fine-tune LLMs for natural language interactions and personalization.

Build scalable backend services using AWS technologies (Lambda, DynamoDB, SageMaker, etc.).

Build scalable production ready ML ops pipeline and inference endpoints using AWS technologies e.g. SageMaker, Bedrock.

Collaborate with Android developers to integrate AI features into client-side applications.

Create prototypes and proof-of-concepts for new AI-driven features.

Stay current with emerging AI/ML technologies and best practices.

Ensure compliance with data privacy and security standards.

Requirements


Education:

Bachelor's or Master's degree in Computer Science, Data Science, or a related field.


Experience:

3+ years of experience in AI/ML development, with a focus on Natural Language Processing (NLP) and LLMs.

Hands-on experience with AWS services for AI/ML deployment.

Proficiency in Python and ML frameworks (TensorFlow, PyTorch).

Experience with RESTful APIs and microservices architecture.


Benefits:

We offer an excellent compensation package and team-oriented work environment with growth opportunities. Some of our outstanding benefits include:

Health & Dental Insurance

Company paid Life Insurance

401(k)

Paid Time Off benefits

Product discounts

Wellness programs



 Equal Opportunity Employer, including Veterans and Individuals with Disabilities 

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