ISCO is an equal opportunity employer with a very diverse employee base consisting of a variety of different positions. ISCO is a privately held entrepreneurial company that offers a flexible and friendly work environment. Its employees enjoy a unique opportunity to see, experience and participate in all aspects of the business. ISCO's open culture provides employees visibility to see how their efforts contribute to the success of the company. 

If you think you are a good fit with the positions described below, fill out the form or send your resume to or call 630-283-3100.

Current Openings

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Senior Application Software


Position Description

ISCO is looking for a Senior Applications Software Engineer to continue to develop and support ISCO's element management system that interacts with hundreds of Company products that are deployed in commercial, cellular wireless networks.  The element management system is a combination of multiple components (database, analytics, UI, reporting, etc.) that allow ISCO customers to have a real-time view of the RF spectrum and gain performance insights of the cellular network.

Candidate will work in a small, fast-paced software development team and will be responsible for all aspects of the software development cycle:  requirements development, prototyping, software development, test and validation, new feature trials in customer environment, deployment, support, and issue resolution.

Reports to: Vice President - Engineering 

Education/Experience:  BS in Computer Engineering/Science or equivalent, and a minimum of ten years related experience

Position Requirements:

  • 10+ years of working experience using C++, C# .NET and object-oriented concepts
  • Experience in developing real-time multi-threaded applications
  • Experience in developing applications that utilize socket programming, TCP/IP and UDP communications
  • Experience in developing applications that use UI that includes data visualization and manipulation
  • Working experience with WinForm, WCF, WPF,, Javascript, SQL, RESTful APIs
  • Experience with both desktop, server, and web-based development
  • Experience with MS Visual Studio 2013 or later version and source code control tool
  • Ability to work in a fast-paced, deadline-oriented environment with minimal supervision
  • Must be a team player, self-starter, and capable of working in the environment of rapidly changing business priority
  • Strong analytical, decision-making, verbal and written communication skills
  • Ability to interact with customers face-to-face to understand desired product features and translate "voice of the customer" into product requirements
  • Occasional domestic travel is required in support of customer meetings and product deployment
  • BS in Computer Engineering/Science, MS preferred

Recommended Skills:

  • Working experience with moving desktop applications to cloud environment
  • Working experience with application virtualization




Position Description

This position will have responsibilities in Quality and Operations.  The quality responsibilities include managing ISO requirements, managing and setting up QC and inspection tools, managing product quality issues in all areas such as electrical and RF and reporting on all issues.   

Specific tasks will include:

  • Supporting all areas as listed in the ISO Quality Manual. 
  • Reviewing and implementing new tools to better track quality metrics. 
  • Managing any quality issue in all areas such as mechanical, electrical or RF.
  • Incoming inspection on quality critical products.
  • Managing customer and internal RMA process including root cause analysis.
  • Entering and maintaining Bills of Materials using MRP system.
  • Creating and processing Engineering Change Notices using ERP system.
  • Ability to determine root causes and come up with corrective actions.
  • Responsibility for maintaining test equipment levels and technology

Reports to: Director - Operations

Education/Experience:  BS in Engineering and minimum 5 years related experience in Quality in RF/Telecommunication related fields.

Position Requirements:

  • Knowledge of ISO standards and processes.
  • Ability to manage quality issues is any function such as mechanical, electrical and RF.  Must have basic electrical and RF understanding to work with engineering to resolve issues.
  • Ability to implement packaged quality software tools and administer the tool after it is released.
  • Experience with ERP/MRP system.
  • Good oral and written communication skills.  Able to clearly and concisely communicate with internal team members and management, customers and vendors on issues concerning designs and goals.
  • Good project management skills.  Able to manage any quality issue and conduct root cause analysis along with corrective actions and then report on all quality metrics and actions.

Recommended Skills:

  • Familiarity with Exact Max ERP system is a plus but not required.
  • Familiarity with cellular RF and electrical basics.
  • Familiarity with software tools for process flow and quality.


RF Distinguished Engineer


Position Description
ISCO seeks a RF Distinguished Engineer with broad engineering skill sets, innovative spirit, and desire to work in a fast paced, entrepreneurial environment. Must have LTE system experience, expertise in modeling and evaluating RF performance in wireless base stations. Engineering responsibilities will begin at the conceptual phase and extend through product design and deployment. This is an excellent position for a talented, motivated seasoned engineer seeking the opportunity to develop industry leading solutions.

Reports to: Vice President - Engineering

PHD in electrical engineering or MSEE in engineering, and a minimum of fifteen years related RF experience

Position Requirements:

  • Leverage knowledge of LTE architecture and familiarity with other wireless base station architectures
  • Must have demonstrated expertise in RF modeling of signals and familiarity with max lab LTE tools, from conception to design validation and verification of product system level RF and power
  • Expertise in engineering methods, measurement techniques, in high-frequency components to address product design requirements and state of the art of components used in wireless telecom
  • Expertise in use of industry standard high-frequency test and measurement equipment/design and simulation tools
  • Familiarity with base station equipment (particularly RF front ends), including Ericsson and Nokia. Also should be familiar with system integration issues
  • Must be familiar with software development, FPGA development and signal processing algorithm development and analysis
  • Should have laboratory experience with test equipment, such as spectrum analyzers, network analyzers, power meters, and multi meters
  • Design expertise state of the art of components used in wireless telecom (400 MHz-3 GHz), to the design, prototyping, and testing of digital receivers and Heterodyne analog RF processing

Recommended Skills:

  • System level familiarity with all the variations of air interfaces
  • CPRI interface basic knowledge
  • Must be familiar with and understand the concepts of radio frequency propagation and transmission theory, including system link budgets, amplifier gain and noise figure, insertion loss, inter-modulation, and return loss
  • Good communication skills. Able to clearly and concisely communicate with team members, sales team, customers and management on issues concerning designs and other business issues
  • Signal processing algorithm development and analysis.

Desirable to Have:

  • Good leadership skills, with demonstrated ability to work in a team with various backgrounds
  • Prior project management experience
  • Documenting all phases of the design process in compliance with ISO 9001:2000 quality standard requirements is a plus
  • Willingness to do some travel to support sales team and to support introduction of new products evaluation and trials
  • Experience in applying design for manufacture principles, and supporting manufacturing with engineering expertise as required is a plus
  • Initiating action to prevent the occurrence of any nonconformities relating to product, process or the quality system, up to and including when necessary stopping production to correct quality problems