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Frontend Developer Jobs in Crystal Lake, IL (NOW HIRING)

Full Stack Engineer

Schaumburg, IL ยท On-site

$115K - $130K/yr

Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product ... Design, build, and maintain features for the DataDelivers CDP product across the front end (React ...

Full Stack Engineer

Schaumburg, IL ยท On-site

$115K - $130K/yr

... ready to contribute across the front end, back end, and cloud infrastructure ... team engineering practices QualificationsBachelor 's degree in Computer Science, Information ...

Testing and Prototyping Engineer

West Chicago, IL ยท On-site

$66K - $79K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Testing and Prototyping Engineer is an early-career, individual contributor role within the ... Support front end innovation efforts (early-stage R&D exploration) as well as new product ...

Testing and Prototyping Engineer

West Chicago, IL ยท On-site

$66K - $79K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Testing and Prototyping Engineer is an early-career, individual contributor role within the ... Support front end innovation efforts (early-stage R&D exploration) as well as new product ...

Understanding of Front-End Technologies like JavaScript, ReactJS, AngularJS, HTML5 * Proficiency in RESTful APIs and API * Healthcare domain Experience preffered Dont Submit Java/J2EE Developer or ...

AEM Architect

Mettawa, IL ยท On-site

$231K/yr

AEM Frontend & Backend * Content Modeling, Templates & Components * Java and modern web technologies * AEM integrations and performance optimization * Cloud/DevOps experience is a plus ...

New

Forward Deployed Engineer

Schaumburg, IL ยท On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Forward Deployed Software Engineer About Convr: Convr is an AI underwriting, data, and intelligent ... Experience Requirements: * 10+ years of professional experience in full-stack or frontend ...

Forward Deployed Engineer

Schaumburg, IL ยท On-site +1

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Forward Deployed Software Engineer About Convr: Convr is an AI underwriting, data, and intelligent ... Experience Requirements: * 10+ years of professional experience in full-stack or frontend ...

Showing results 41-60

Frontend Developer information

See Crystal Lake, IL salary details

$41.2K

$107.1K

$150.8K

How much do frontend developer jobs pay per year?

As of Aug 14, 2026, the average yearly pay for frontend developer in Crystal Lake, IL is $107,075.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,900.00 and $117,300.00 per year, depending on experience, location, and employer.

What is a frontend developer?

Frontend Developers are professionals who design and build the user-facing parts of websites and web applications. They use technologies like HTML, CSS, and JavaScript to create interactive and visually appealing interfaces that users interact with directly in their browsers. Frontend Developers work closely with designers and backend developers to ensure a seamless and responsive user experience across different devices and platforms. Their role often includes optimizing website performance, ensuring accessibility, and maintaining code quality.

What is the difference between Frontend Developer vs Web Designer?

AspectFrontend DeveloperWeb Designer
Primary FocusBuilding and coding website interfaces using HTML, CSS, JavaScriptDesigning visual layout, user experience, and aesthetics
Skills & CertificationsHTML, CSS, JavaScript, frameworks, coding skillsDesign tools (Photoshop, Sketch), UX/UI principles
Work EnvironmentCollaborates with developers and backend teams in tech settingsWorks with clients, marketing teams, and creative departments
Industry UsageWeb development companies, tech firms, startupsDesign agencies, marketing firms, freelance projects

While both roles contribute to website creation, a Frontend Developer focuses on coding and implementing interactive features, whereas a Web Designer emphasizes visual design and user experience. Understanding these differences helps in choosing the right career path or job search focus.

How do frontend developers collaborate with designers and backend teams during a project?

Frontend Developers regularly work closely with UX/UI designers to ensure that visual elements are accurately translated into interactive web pages and applications. They also coordinate with backend developers to integrate APIs and manage data flow between the server and the user interface. Regular meetings, code reviews, and collaborative tools like version control systems help streamline communication and maintain consistency across the project. This teamwork is essential to deliver a cohesive and high-performing end product.

What exactly does a front-end developer do?

A front-end developer designs and implements the visual and interactive elements of websites or applications using languages like HTML, CSS, and JavaScript. They focus on creating user-friendly interfaces, ensuring responsiveness across devices, and often work with design tools and frameworks to build functional, accessible web experiences.

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

To thrive as a Frontend Developer, you need a solid grasp of HTML, CSS, JavaScript, and modern frameworks like React or Angular, often supported by a degree in computer science or a related field. Familiarity with version control systems (e.g., Git), responsive design tools, and web performance optimization techniques is typically required. Creativity, attention to detail, and strong problem-solving abilities help you build intuitive, user-friendly interfaces and collaborate effectively with design and backend teams. These skills and qualities are crucial for delivering high-quality, interactive web applications that meet user and business needs.

Are frontend developers still in demand?

Frontend developers are currently in high demand due to the growth of web applications and digital services. Skills in HTML, CSS, JavaScript, and frameworks like React or Angular are especially sought after by employers across various industries.

What are popular job titles related to Frontend Developer jobs in Crystal Lake, IL?

For Frontend Developer jobs in Crystal Lake, IL, the most frequently searched job titles are:

What cities near Crystal Lake, IL are hiring for Frontend Developer jobs?

Cities near Crystal Lake, IL with the most Frontend Developer job openings:

Infographic showing various Frontend Developer job openings in Crystal Lake, IL as of August 2026, with employment types broken down into 89% Full Time, and 11% Contract. Highlights an 80% In-person, and 20% Remote job distribution, with an average salary of $107,075 per year, or $51.5 per hour.

Senior Staff Engineer, RF Power Amplifier Design

Murata Americas

Arlington Heights, IL โ€ข On-site

Full-time

This job post hasย expired today.ย Applications are no longer accepted.


Job description

pSemi Corporation is a Murata company driving semiconductor integration. pSemi builds on Peregrine Semiconductor's 30-year legacy of technology advancements and strong IP portfolio but with a new mission-to enhance Murata's world-class capabilities with high-performance semiconductors. With a strong foundation in RF integration, pSemi's product portfolio now spans power management, connected sensors, optical transceivers, antenna tuning and RF frontends. These intelligent and efficient semiconductors enable advanced modules for smartphones, base stations, personal computers, electric vehicles, data centers, IoT devices and healthcare. From headquarters in San Diego and offices around the world, pSemi's team explores new ways to make electronics for the connected world smaller, thinner, faster and better.
Job Summary
This position is responsible for technical leadership, architecture definition, and end-to-end design direction for advanced RF power amplifier platforms supporting cellular and Wi-Fi front-end applications. The individual will serve as a recognized subject matter expert in the development and optimization of RF power amplifiers across multiple frequency bands and semiconductor processes, including SOI and GaAs, and will guide complex technical tradeoff decisions across performance, cost, manufacturability, and time-to-market.
The individual will work independently and cross-functionally to define and advance power amplifier techniques and architectures that enable high-performance, cost-optimized APT and ET front-end solutions. This role will act as a key technical advisor to pSemi and Murata management on RF power amplifier design decisions, capability development, and roadmap tradeoffs.
The successful individual will bring expert-level knowledge of advanced RF/mmWave power amplifiers for next-generation cellular and 5G NR applications, deep RFIC circuit design expertise, and the ability to lead resolution of significant and unique technical issues across major development programs requiring broad, multidisciplinary coordination. The individual must have demonstrated experience in developing novel RF PA products, RFIC design, test and mass production product releases.
The individual will join a team of senior technologists and will play a leading role in shaping and executing the long-term architectural roadmap, building proof-of-concept prototypes, and translating advanced technologies into high-volume products.
Roles & Responsibilities
This position has responsibility for:
  • Lead the development and technical evaluation of novel architectures, circuits, devices, and methods for high-performance RF power amplifiers and transmit chains using co-design and co-simulation of active and passive circuitry.
  • Provide technical leadership for advanced RF power amplifier platforms for cellular and Wi-Fi front-end applications, including design reviews, architecture tradeoff decisions, and technical risk resolution across multiple programs.
  • Drive advanced power amplifier design across multiple process technologies and supply modulation approaches, including envelope tracking, while determining design methodologies and evaluation criteria for complex or non-standard assignments.
  • Lead cross-functional technical collaboration with engineering teams across pSemi and Murata on PA technologies, aligning design decisions, resolving escalated technical issues, and driving adoption of best practices.
  • Partner with key stakeholders and suppliers to influence, refine, and execute the long-term architectural roadmap for PA platforms, ensuring technical decisions align with product, process, and manufacturing strategy.
  • Lead technical execution of PA proof-of-concept prototypes and transition successful technologies into high-volume products, with accountability for design maturity, manufacturability, and performance outcomes.
  • Serve as a recognized technical expert in advancing pSemi and Murata RF PA capabilities, directing future efforts regarding tools, technology, performance, cost optimization, and design methodology improvements across the function.
  • Mentor and provide technical guidance to junior and peer engineers; review complex designs, elevate team capability, and disseminate advanced design practices across the RF development organization.
  • Product Documentation: Document all relevant product and design information to educate others on novel design techniques and provide guidance on product usage.
  • Product Characterization: Work with Characterization and Test Engineers to define, conduct and analyze data from product performance characterization.
  • Production ATE Development: Work with Test Engineers to define, develop and ramp production ATE solutions.
  • Product Support: Provide expert technical leadership with Product, Test, and Manufacturing Engineering to resolve complex field failures, improve yield, drive corrective actions, and establish design learnings that improve future product robustness.

Minimum Qualifications (Experience and Skills)
  • Typically requires 12 or more years of RF FEM product development, depending on education level and experience, with demonstrated expert-level technical capability in the design, development, and commercialization of advanced RF power amplifier products, including:
    • More than 5 years of direct experience with GaAs-based power amplifier product development.
    • At least 5 years of advanced development experience directly related to mobile power amplifier and/or transmitter design, including responsibility for resolving novel or non-standard technical challenges.
    • Detailed knowledge and experience with design of envelope tracking (ET) PA for mobile applications.
    • Direct hands-on experience with the design of highly efficient and linear power amplifiers operating between 600 MHz and 20 GHz.
    • Deep understanding of technical principles of power amplifier operation and design.
    • Experience with transistor level IC design and layout in at least multiple technology nodes including:
      • GaAs HBT, CMOS-SOI, SiGe, GaN
      • Understanding of the comparative advantage and tradeoffs between the different processes
    • Good WIFI and/or cellular standard system knowledge and key performance metrics.
    • Knowledge of IC fabrication and how it impacts circuit performance.
    • Good understanding of non-linear effects in transistors.
    • Knowledge of basic analog bias and control circuits and their impact on overall RF system
    • Experience with EM (Electromagnetic) modelling of high frequency RFIC's and PCB's
    • Familiarity with analog & RF IC layout techniques
    • Multiple successful IC tape-outs and demonstrated contribution across the full product life cycle from concept definition through validation, release, and production ramp.
    • Experience in design, debug and optimization of RFICs in the lab using standard lab equipment
    • Hands on use of RF measurement equipment to validate and correlate performance metrics such as ACP/ACLR, EVM, IP3, NF and gain
    • Software tools: Virtuoso, Cadence Spectre, Keysight ADS, EM software, Matlab, JMP
    • Strength in documentation clarity and completeness
    • Ability to clearly assess and manage risk
    • Strong ability to influence cross-functional technical decisions in a collaborative environment, align diverse stakeholders on complex tradeoffs, and deliver high-impact outcomes on schedule.
    • Recognized subject matter expertise in RF power amplifier design with the ability to determine methods, techniques, and evaluation criteria for highly complex or unique assignments.

Minimum Education Requirements
  • Master's degree in Electrical Engineering (or equivalent field)

Work Environment
This job operates in a professional office environment. This role routinely uses standard office equipment.
Physical Demands
The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; use hands to finger, handle or feel; and reach with hands and arms. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus. This position requires the ability to occasionally lift office products and supplies, up to 20 pounds.
USD 195,563.22 - 254,246.27 per year
pSemi Corporation supports a diverse workforce and is committed to a policy of equal employment opportunity for applicants and employees. pSemi does not discriminate on the basis of age, race, color, religion (including religious dress and grooming practices), sex/gender (including pregnancy, childbirth, or related medical conditions or breastfeeding), gender identity, gender expression, genetic information, national origin (including language use restrictions and possession of a driver's license issued under Vehicle Code section 12801.9), ancestry, physical or mental disability, legally-protected medical condition, military or veteran status (including "protected veterans" under applicable affirmative action laws), marital status, sexual orientation, or any other basis protected by local, state or federal laws applicable to the Company. pSemi also prohibits discrimination based on the perception that an employee or applicant has any of those characteristics, or is associated with a person who has or is perceived as having any of those characteristics.
Note: The Peregrine Semiconductor name, Peregrine Semiconductor logo and UltraCMOS are registered trademarks and the pSemi name, pSemi logo, HaRP and DuNE are trademarks of pSemi Corporation in the U.S. and other countries. All other trademarks are the property of their respective companies. pSemi products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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