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

Caterpillar Brazil

Senior Data Engineer

Peoria, IL · On-site

$112.71 - $183.14/hr

Full timeposted on: Posted Todayjob requisition id: R0000382322**Career Area:**Technology, Digital ... Azure Devops etc.* Experience with AWS components such as Bedrock, Lambda, Dynamo, Fargate, S3 ...

New

MAUI JIM, Inc.

Senior Analytics Developer

Peoria, IL · On-site

$90K - $130K/yr

We work hard to develop our leaders who in turn develop their team members to reach their full ... To serve as the organization's lead analytics developer and advisor, responsible for owning and ...

Maui Jim

Senior Analytics Developer

Peoria, IL · Hybrid

$90K - $130K/yr

We work hard to develop our leaders who in turn develop their team members to reach their full ... To serve as the organization's lead analytics developer and advisor, responsible for owning and ...

Maui Jim

Senior Analytics Developer

Peoria, IL · On-site

$90 - $130/hr

We work hard to develop our leaders who in turn develop their team members to reach their full ... To serve as the organization's lead analytics developer and advisor, responsible for owning and ...

Rfamec

Sr. Embedded Software Engineer

Chillicothe, IL · On-site

$100 - $120/hr

This is a full-time position with a full benefit package listed below that includesopportunitiesfor ... Sr. Embedded Software Engineer This selected candidate will apply the principles of computer ...

Caterpillar Brazil

Lead Digital Architect

Peoria, IL · On-site

$128 - $209/hr

This role combines full-stack application development, cloud deployment, and operational ownership ... Evaluates new technologies and engineering practices for their potential business value ...

New

Tech Tammina LLC

Embedded Software Engineer

Mossville, IL · On-site

$95K - $126K/yr

Core Tech Stack: Expert-level C++ (Required) and proficiency in Python. * Systems Knowledge: Deep ... As a senior leader, this individual will shape the long-term platform strategy and technical ...

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Senior Full Stack Developer information

See Peoria, IL salary details

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

As of Sep 2, 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 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.

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 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.

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 are popular job titles related to Senior Full Stack Developer jobs in Peoria, IL?

For Senior Full Stack Developer jobs in Peoria, IL, the most frequently searched job titles 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.

Senior Electrical Engineer

Rogers Freels & Associates Inc

Chillicothe, IL

$90K - $120K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 29 days ago

Job description

RFA Engineering (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise.  We are seeking an experienced level candidate to become an integral part of our engineering team.  The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will operate onsite at our customer's world-class engineering and manufacturing facility.

This is a full-time position with a full benefit package listed below that includes opportunities for professional growth, direct hire by our customers, and additional opportunities within our own organization.

Senior Electrical Engineer - Power Electronics

The selected candidate will support the development of advanced medium-voltage and utility-scale power conversion systems. In this role, you will design, validate, and troubleshoot power electronics hardware used in high-power inverter and converter applications. You will work closely with multidisciplinary engineering teams to develop reliable, high-performance hardware while supporting projects from concept through production.

Responsibilities

  • Design, develop, and troubleshoot power electronics hardware, including gate driver boards, power boards, sensing circuits, and protection circuitry for high-power applications. 
  • Create electrical schematics, review PCB layouts, and select components such as IGBT and SiC power devices, isolated gate drivers, sensors, and power supplies.
  • Develop and execute validation plans by performing laboratory testing, including double pulse testing, switching characterization, thermal testing, fault analysis, and system commissioning.
  • Analyze switching performance, power losses, thermal behavior, and protection circuit operation using oscilloscopes, power analyzers, thermal cameras, and other laboratory equipment.
  • Investigate hardware failures, perform root cause analysis, and implement corrective actions to improve reliability and performance.
  • Collaborate with controls, mechanical, manufacturing, validation, and supplier teams to support prototype builds, product development, and production readiness while promoting Design for Manufacturability (DFM) and Design for Testability (DFT) best practices.

Requirements

  • Bachelor's degree in Electrical Engineering with at least five years of experience developing power electronics hardware. 
  • Experience designing and validating inverter, converter, motor drive, battery energy storage, renewable energy, or similar high-power systems.
  • Strong knowledge of IGBT and SiC power devices, gate driver design, power converter topologies, switching behavior, thermal management, and protection circuits.
  • Experience designing and debugging power electronics PCB assemblies and performing laboratory validation using high-speed measurement equipment.
  • Strong analytical, troubleshooting, communication, and cross-functional collaboration skills.

Preferred Qualifications 

  • Master's degree in Electrical Engineering with an emphasis in Power Electronics. 
  • Experience with medium-voltage power conversion systems and tools such as MATLAB/Simulink, PLECS, LTspice, or Altium Designer.
  • Knowledge of Double Pulse Testing (DPT), EMI/EMC mitigation, UL and IEC standards, DFMEA, reliability engineering, and production launch support.

Visa sponsorship is NOT available for this position.

Pay Range: $90,000 - $120,000/yr – Commensurate with experience

About RFA Engineering

RFA Engineering has provided product development and engineering services to industry leading customers since 1943. Our primary focus is the development of off highway equipment including agricultural, construction, mining, recreational, industrial, and special machines. Our work includes concept development, product design, documentation, problem-solving, simulation, optimization, and testing of components, systems and complete machines. Our engineering staff is located at our Engineering Center in Minneapolis, branch office in Dubuque, IA, and at numerous customer sites throughout the U.S.
Competitive Benefits

  • Health and Dental Insurance
  • Health Savings Account
  • TelaDoc: Virtual Health Care
  • Vision Insurance
  • Company Paid / Supplemental Life Insurance
  • Company Paid Long-Term Disability
  • Supplemental Short-Term Disability
  • Retirement Savings Account (Traditional 401k & Roth 401k)
  • Flexible Spending Plan Dependent Care
  • Bonus Plan (Exempt Employees Only)
  • Paid Time Off (PTO)
  • Paid Holidays
  • Bereavement Leave
  • Employee Assistance Programs (EAP)
  • Education Assistance

Equal Opportunity and Veteran Friendly