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Senior Full Stack Developer Jobs in Peoria, IL (NOW HIRING)

TEKsystems

Project Coordinator

Peoria, IL

$20 - $45/hr

... engineering, research and development, financial systems and product roll-out, etc. or any other ... As an industry leader in Full-Stack Technology Services, Talent Services, and real-world ...

Dewberry

Senior Electrical Engineer

Peoria, IL

$105K - $137K/yr

... full-range services to our local and regional clients. In short, provide technical guidance ... seeking a Senior Mechanical Engineer to join our Peoria, IL office. Key Required Skills:

Dewberry

Senior Electrical Engineer

Peoria, IL · On-site

$105K - $137K/yr

... full-range services to our local and regional clients. In short, provide technical guidance ... seeking a Senior Mechanical Engineer to join our Peoria, IL office. Key Required Skills:

RC Mowers

Senior Robotics Software Engineer

Peoria, IL

$100K - $140K/yr

We build full-size commercial autonomous robots that mow large properties without an operator in ... We're hiring a senior ROS2 engineer to help us do it. WHAT YOU'D ACTUALLY DO * Develop and ship ...

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Senior Full Stack Developer information

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$58

$84

How much do senior full stack developer jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for senior full stack developer in Peoria, IL is $58.15, according to ZipRecruiter salary data. Most workers in this role earn between $48.37 and $66.97 per hour, depending on experience, location, and employer.

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

AspectSenior Full Stack DeveloperBackend Developer
Required SkillsProficiency in both frontend and backend technologies, such as JavaScript, HTML, CSS, and server-side languages like Node.js, Python, or JavaSpecialized in server-side development, working with languages like Java, Python, Ruby, or PHP, and database management
Work EnvironmentCollaborates across frontend and backend teams, often involved in full project lifecycleFocuses primarily on backend systems, APIs, and database integration
Common UsageUsed in roles requiring full project oversight and versatile development skillsUsed in roles focused on server-side logic, database management, and API development

The main difference is that a Senior Full Stack Developer handles both frontend and backend development, providing a comprehensive approach to projects, while a Backend Developer specializes solely in server-side logic and database management. Both roles require strong programming skills, but the Full Stack Developer's expertise spans the entire technology stack.

How does a senior full stack developer typically collaborate with cross-functional teams during a project lifecycle?

As a Senior Full Stack Developer, you'll frequently collaborate with designers, product managers, QA engineers, and other developers to deliver end-to-end solutions. You'll be involved in requirements discussions, offer technical guidance, and help align frontend and backend development with business goals. Your role often includes code reviews, mentoring junior team members, and ensuring seamless integration across various systems. This collaborative environment encourages knowledge sharing and innovation while ensuring project success.

What are the key skills and qualifications needed to thrive as a senior full stack developer, and why are they important?

To thrive as a Senior Full Stack Developer, you need advanced proficiency in both front-end and back-end programming languages, frameworks, and a solid understanding of software architecture, usually supported by a relevant degree and several years of experience. Mastery of tools such as Git, Docker, CI/CD systems, and cloud platforms like AWS or Azure is typically required, alongside familiarity with databases and version control systems. Strong problem-solving abilities, leadership, effective communication, and collaboration skills set exceptional developers apart. These skills and qualities are crucial for delivering robust, scalable solutions while mentoring teams and efficiently bridging gaps between client requirements and technical implementation.

What is a senior full stack developer?

Senior Full Stack Developers are experienced professionals who design, develop, and maintain both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to handle servers, databases, APIs, and user interfaces. In addition to coding, they often lead development teams, make architectural decisions, and ensure software quality and scalability. Their expertise allows them to oversee the entire application lifecycle, from concept to deployment.
What are the most commonly searched types of Full Stack Developer jobs in Peoria, IL? The most popular types of Full Stack Developer jobs in Peoria, IL are:
What job categories do people searching Senior Full Stack Developer jobs in Peoria, IL look for? The top searched job categories for Senior Full Stack Developer jobs in Peoria, IL are:
What cities near Peoria, IL are hiring for Senior Full Stack Developer jobs? Cities near Peoria, IL with the most Senior Full Stack Developer job openings:
Senior Full Stack Developer jobs near you
Infographic showing various Senior Full Stack Developer job openings in Peoria, IL as of August 2026, with employment types broken down into 1% Internship, 81% Full Time, 12% Part Time, 5% Contract, and 1% Nights. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $120,943 per year, or $58.1 per hour.

Sr. Software Engineer (.Net Full Stack)

RLI Corp.

Peoria, IL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 9 days ago

Job description

About Us
We're not like other insurance companies. From our specialty products to our business model, our culture to our results - we're different. Different is who we are, and how we work, interact, deliver and succeed together. Creating a different and better insurance experience doesn't just happen. It takes focus and a shared passion for going beyond the expected to forge relationships and deliver care that makes a difference. This approach rises from and is supported by our talented, ethical and smart team of employee owners united around a single purpose: to work alongside our customers and partners when they need us, in unexpected ways, with exceptional results. Apply today to make a difference with us.
RLI is a Glassdoor Best Places to Work company with a strong, successful background. For decades, our financial track record has been stellar - a testament to our culture and validation of our reputation as an excellent underwriting company.
Position Purpose
RLI is seeking an experienced Senior Software Engineer (.NET Full Stack) with 8-10 years of professional software development experience to join our Software Engineering team. In this role, you will design, develop, and support modern enterprise applications using the Microsoft technology stack while helping advance RLI's digital transformation initiatives.
The ideal candidate is a strong full-stack engineer with experience building scalable, cloud-ready applications using .NET, Blazor, RESTful APIs, and microservices. You will collaborate with architects, product owners, business stakeholders, and fellow engineers to deliver secure, high-quality software that supports critical insurance business capabilities.
Principal Duties & Responsibilities
  • Design, develop, test, and maintain enterprise applications using C# and the Microsoft .NET platform.
  • Build responsive, modern web applications using Blazor, Razor, HTML, CSS, and JavaScript.
  • Develop secure, scalable RESTful APIs and backend services.
  • Design and implement microservices that support distributed, event-driven applications.
  • Develop data access solutions using MongoDB and SQL Server.
  • Implement asynchronous messaging and event streaming using Kafka.
  • Participate in solution architecture, technical design, and code reviews.
  • Build and maintain automated testing and CI/CD pipelines.
  • Collaborate with product owners, architects, QA engineers, and business stakeholders within Agile delivery teams.
  • Troubleshoot production issues and optimize application performance, scalability, and reliability.
  • Follow engineering best practices for coding standards, testing, source control, documentation, and secure software development.
  • Mentor junior engineers and contribute to a culture of technical excellence and continuous learning.
  • Leverage AI-assisted development tools (such as GitHub Copilot, ChatGPT, or similar technologies) to improve software design, development, testing, debugging, and documentation.
  • Familiarity with Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), prompt engineering, or AI orchestration frameworks.
  • Evaluate and implement AI-enabled capabilities within enterprise applications where they provide measurable business value.
  • Apply secure and responsible AI development practices while protecting sensitive business and customer information.
  • Stay current with emerging AI technologies and recommend opportunities to improve engineering productivity and software quality.

Education & Experience
  • Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent professional experience.
  • 8-10 years of professional software development experience.
  • Strong experience developing enterprise applications using C# and .NET.
  • Experience developing modern web applications using:
    • Blazor
    • Razor
    • HTML5
    • CSS3
    • JavaScript
  • Experience working with:
    • MongoDB
    • Microsoft SQL Server or other relational databases
    • Kafka
  • Experience designing and implementing RESTful APIs.
  • Strong understanding of microservices architecture and distributed systems.
  • Experience using Git for source control.
  • Experience implementing CI/CD pipelines and modern DevOps practices.
  • Experience working in Agile software development environments.
  • Experience using AI-assisted software development tools to accelerate coding, testing, troubleshooting, and documentation.
  • Demonstrated ability to evaluate and adopt emerging technologies that improve software delivery and engineering efficiency.
  • Strong analytical, problem-solving, debugging, and communication skills.

Knowledge, Skills, & Competencies
  • Ability to understand and utilize a variety of the field's concepts, practices and procedures.
  • Ability to use software to develop and analyze IT data and applications.
  • Ability to work well independently or within a team.
  • Advanced experience with the design and development of various Web Technologies and Web Services.
  • Ability to model technology to align with business strategy.
  • Ability to create and leverage frameworks.
  • Ability to communicate findings and recommendations to internal and external stakeholders.
  • Ability to influence testing approaches and framework.

Compensation Overview
The base salary range for the position is listed below. Please note that the base salary is only one component of our robust total rewards package at RLI. The salary offered will take into account a number of factors including, but not limited to, geographic location, experience, scope & responsibilities of the role, qualifications/credentials, talent availability & specialization, as well as business needs. The below range may be modified in the future.
Base Pay Range
$96,264.00 - $137,657.00
Total Rewards
At RLI, we're all owners. We hire the best and the brightest employees and allow them to share in the company's success through our Total Rewards. With the Employee Stock Ownership plan at its core, the Total Rewards program includes all compensation, benefits and perks that come with being an RLI employee.
Financial Incentives
  • Annual bonus plans
  • Employee stock ownership plan (ESOP)
  • 401(k) - automatic 3% company contribution
  • Annual 401k and ESOP profit-sharing contributions (Up to 15% of eligible earnings)

Work & Life
  • Paid time off (PTO) and holidays
  • Paid volunteer time off (VTO) to support our communities
  • Parental and family care leave
  • Flexible & hybrid work arrangements
  • Fitness center discounts and free virtual fitness platform
  • Employee assistance program

Health & Wellness
  • Comprehensive medical, dental and vision benefits
  • Flexible spending and health savings accounts
  • 2x base salary for group life and AD&D insurance
  • Voluntary life, critical illness, & accident insurance for purchase
  • Short-term and long-term disability benefits

Personal & Professional Growth
RLI encourages its employees to pursue professional development work in insurance and job-related areas. We make a commitment to employees to provide educational opportunities that help them enhance their skills and further their career advancement. RLI fosters a true learning culture and encourages professional growth through insurance courses, in-house training and other educational programs. RLI covers the cost for most programs and employees typically earn a bonus upon successful completion of approved courses and certifications. Our personal and professional growth benefits include:
  • Training & certification opportunities
  • Tuition reimbursement
  • Education bonuses

Diversity & Inclusion
Our goal is to attract, develop and retain the best employee talent from diverse backgrounds while promoting an environment where all viewpoints are valued and individuals feel respected, are treated fairly, and have an opportunity to excel in their chosen careers. We actively support, and participate in, initiatives led by the American Property Casualty Insurance Association that aim to increase diversity in the insurance industry. Cultivating an exceptional and diverse workforce to deliver excellent customer service reinforces our culture and is a key to achieving superior business results.
RLI is an equal opportunity employer and does not discriminate in hiring or employment on the basis of race, color, religion, national origin, citizenship, gender, marital status, sexual orientation, age, disability, veteran status, or any other characteristic protected by federal, state, or local law.
RLI logo

About RLI

Sourced by ZipRecruiter

Industry

Insurance services

Company size

1,001 - 5,000 Employees

Headquarters location

Peoria, IL, US

Year founded

1965

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