1

Senior Back End Developer Jobs in Illinois (NOW HIRING)

Senior Software Engineer Job Type: Contractor (~15 hours/week) Location: Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training project by creating ...

Senior Go Lang Engineer

Chicago, IL · On-site

$126K - $166K/yr

As a Senior Backend Engineer , you will be working in the Middle Office Core Platform Organization to drive product development and modernization initiatives. You are a builder with a deep ...

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... high‑visibility, data‑driven application used across the organization for analytics and ...

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... high‑visibility, data‑driven application used across the organization for analytics and ...

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... high‑visibility, data‑driven application used across the organization for analytics and ...

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... high‑visibility, data‑driven application used across the organization for analytics and ...

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... high‑visibility, data‑driven application used across the organization for analytics and ...

Showing results 21-40

Senior Back End Developer information

See Illinois salary details

$62K

$135.5K

$184.6K

How much do senior back end developer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for senior back end developer in Illinois is $135,507.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,800.00 and $151,700.00 per year, depending on experience, location, and employer.

What is a senior back end developer?

Senior Back End Developers are experienced software engineers who specialize in building and maintaining the server-side logic, databases, and APIs that power web and mobile applications. They collaborate with front end developers and other team members to ensure seamless integration and optimal performance of applications. Their responsibilities often include designing system architecture, optimizing code for scalability, implementing security best practices, and mentoring junior developers. Senior Back End Developers typically have several years of experience and a deep understanding of programming languages such as Java, Python, Ruby, or Node.js.

What are the key skills and qualifications needed to thrive as a senior back end developer?

To thrive as a Senior Back End Developer, you need advanced programming skills (such as in Python, Java, or Node.js), a deep understanding of server-side architecture, and experience with databases, often backed by a degree in computer science or related fields. Familiarity with frameworks (like Django or Spring), RESTful APIs, cloud platforms (AWS, Azure, or GCP), and version control systems (such as Git) is typically required, along with relevant certifications. Strong problem-solving, collaboration, and communication skills help you deliver robust solutions and mentor junior developers. These skills ensure scalable, secure, and maintainable back-end systems that are vital for reliable business operations.

What are some common challenges senior back end developers face when working on large-scale systems?

Senior Back End Developers often encounter challenges such as ensuring system scalability, maintaining high performance under increased load, and designing robust APIs that can evolve over time. They must also address complex data consistency issues and integrate with multiple third-party services or legacy systems. Collaborating closely with front end, DevOps, and QA teams is crucial to align on architecture decisions and streamline deployment processes, making strong communication and problem-solving skills essential.

What is the difference between Senior Back End Developer vs Backend Engineer?

AspectSenior Back End DeveloperBackend Engineer
Required CredentialsBachelor's in CS or related field, experience in backend developmentBachelor's in CS or related field, experience in backend systems
Work EnvironmentCollaborates with front-end developers, product managers, and QA teamsWorks on server-side logic, database integration, and API development
Industry UsageCommon in tech companies, startups, and enterprise software firmsUsed across similar industries, often interchangeably with Senior Back End Developer

Both roles require similar technical skills and educational backgrounds, focusing on server-side development. The main difference lies in the seniority level and scope of responsibilities, with Senior Back End Developers typically taking on more leadership and complex project tasks compared to Backend Engineers.

What are the most commonly searched types of Back End Developer jobs in Illinois?

The most popular types of Back End Developer jobs in Illinois are:

What job categories do people searching Senior Back End Developer jobs in Illinois look for?

The top searched job categories for Senior Back End Developer jobs in Illinois are:

What cities in Illinois are hiring for Senior Back End Developer jobs?

Cities in Illinois with the most Senior Back End Developer job openings:

Infographic showing various Senior Back End Developer job openings in Illinois as of August 2026, with employment types broken down into 87% Full Time, and 13% Contract. Highlights an 72% In-person, 2% Hybrid, and 26% Remote job distribution, with an average salary of $135,507 per year, or $65.1 per hour.

Senior Backend Web and App Developer

Zmodo AI Inc

Champaign, IL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 3 days ago


Job description

Backend Web and App Developer

At Smartz Inc, we rely on our dynamic team of engineers to solve the many challenges and puzzles that come with our rapidly evolving technical stack. We’re seeking a full stack engineer who is ready to work with new technologies and architectures in a forward-thinking organization that’s always pushing boundaries. Here, you will take complete, end-to-end ownership of projects across the entire stack. Our ideal candidate has experience building products across the stack and a firm understanding of web frameworks, APIs, databases, and multiple back-end languages. You’ll be joining a small team working at the forefront of new technology, solving the challenges that impact both the front end and back-end architecture, and ultimately, delivering amazing global user experiences.


About Us 

Smartz was founded in June of 2021 by Dr. Kevin Wan who has been a successful entrepreneur in the smart home industry for more than 10 years. Our team at Smartz wants to disrupt the PropTech Industry by providing advanced AI software that is compatible with industry leading smart home devices and  will provide property owners and tenants with an all-in-one solution to all of their property management needs.


Our team uses the latest mobile technologies for all features of Smartz apps, which include live video streaming/recording, motion/sound alerts, AI powered object detection, video access sharing functions, etc. We always strive to develop innovative features to create secure and smart device management experiences for our users and business partners.


Benefits and Compensation 

  • Company paid Medical, Dental, Vision, and Life insurance
  • Retirement and savings plan with company match 
  • Robust paid time off package 
  • Paid Company Holidays 


Job Type

  • Full-time (Champaign, IL)


Job Responsibilities

  • Integration of user-facing elements developed by a front-end developer with server-side logic
  • Implement, integrate and document a variety of software platforms through the REST API framework
  • Be involved in the development life cycle and perform definition and feasibility analysis
  • Develop new features and infrastructure development in support of rapidly emerging business and project requirements
  • Assume leadership of new projects from conceptualization to deployment
  • Write object-oriented, clean, and maintainable code
  • Work with agile development methodologies, adhering to best practices and pursuing continued learning opportunities.
  • Optimization of the application for maximum speed and scalability
  • Implementation of security and data protection
  • Design and implementation of data storage solutions
  • Creating servers and database for functionality
  • Meeting both technical and consumer needs.
  • Staying abreast of developments in web applications and programming languages.
  • Design and implementation of continuous integration and deployment
  • Troubleshoot issues and solve problems, identify potential process improvement areas
  • Deliver quality results on time with minimal supervision


Experience & Qualifications

  • 1 year of experience using Java / C++ , Bash
  • 1+ year of using these apps/tools under Linux: Nginx , Git , Mysql/Mongodb
  • Bachelor's Degree in Computer Science or related majors
  • Excellent verbal communication skills.
  • Good problem-solving skills and strong attention to detail.
  • Passion for learning cutting edge tech stack.


Smartz’s commitment of diversity and inclusion is one we strive to continuously cultivate. We aim to provide everyone regardless of identity a space where they can grow and feel seen as a person first. These are more than just words to us; they are guidelines for how we build and foster our team, our leaders, and the core culture of our company. We are also an equal opportunity employer that does not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. In accordance with the law, we make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as any mental health or physical disability needs.


As a part of our commitment to health and safety, we have implemented various COVID-related health and safety requirements for our workforce. These requirements may include sharing information in the company's HRM system, regular testing, mask wearing, social distancing and daily health checks. Requirements may change in the future with the evolving public health landscape.