Demo

W2 Embedded C++ Developer

APN Software Services, Inc
Chicago, IL Contractor
POSTED ON 4/23/2026
AVAILABLE BEFORE 5/23/2026

Please contact Abdul on "" OR email me at ""

Product: commercial HVAC controls in IRS buildings, airports, etc. Role works on the controllers that work on these control products

Buffalo Grove role is for legacy product reaching end of life involves testing, less feature work. This is a backfill for someone who did not work out well.

Chicago role is for the current product, new features. This is a backfill for a retiree.

Both roles are contract to hire, 40 hours a week, onsite 5 days a week. Manager said if someone works really well, they may consider them to work remote on Fridays after a few months.

Role is for an Embedded firmware dev

C work

Visual code

GIT source control tool

Linux/unix

Will work on feature dev tasks or

Non-locals ok, if no locals available

Pay rate: $70/hr

Looking for:

4-7 years of experience

Bachelor s degree is a must

Top 3 skills: C , firmware dev exp, Linux

Exp from HVAC industries preferred, like Johnson controls would be good

Exp with Protocols - BACnet a plus

Must be able to come into the office (working remotely is available after an evaluation period)

Job Description:

About the Role:

Are you a passionate and skilled Mid-Level Developer with a knack for C and embedded systems? We're looking for a motivated technologist to join our innovative and dynamic team. In this role, you'll be instrumental in developing and maintaining cutting-edge embedded software that powers the building automation systems behind the scenes in major commercial and industrial facilities across the globe.

If you thrive in a collaborative, agile environment, love solving complex problems, and are eager to make a tangible impact with significant opportunities for growth and career advancement, we'd love to hear from you!

Key Responsibilities:

As an Embedded C Developer, you will:

  • Design, develop, and maintain robust software solutions using C for firmware and embedded systems.
  • Collaborate closely with cross-functional teams, including development, QA, and product management, to ensure the delivery of high-quality, integrated solutions.
  • Engage effectively with Product Owners and various business stakeholders to thoroughly understand requirements, provide technical insights, and contribute to strategic decision-making.
  • Actively participate in the full software development lifecycle, including coding, comprehensive testing, detailed documentation, and presenting compelling proofs of concept.
  • Contribute to the preparation and presentation of clear, concise technical documentation and reports.
  • Analyze complex code bases to identify defects, propose innovative solutions, and implement effective fixes.

What You'll Bring (Qualifications):

  • Proven professional experience in C development, ideally within an embedded systems context.
  • Hands-on experience with firmware and embedded development, demonstrating a solid understanding of hardware-software interaction.
  • Ability to work effectively and collaboratively as part of an agile development team.
  • Strong communication skills, with the ability to articulate technical concepts clearly to both technical and non-technical audiences, including Product Owners and business stakeholders.
  • Demonstrated experience in debugging embedded systems using tools like GDB or similar, and the ability to analyze and debug complex systems.
  • A solutions-oriented mindset with strong problem-solving skills.

Bonus Points If You Have (Preferred Skills & Experience):

  • Good knowledge of networking concepts and protocols.
  • Familiarity with Linux as a development and target operating system.
  • Experience with scripting languages for automation or tool development.
  • Familiarity with agile methodologies and practices (e.g., Scrum, Kanban).
  • Experience with version control systems, particularly Git.
  • Familiarity with development tools such as CMake and VSCode.
  • Ability to adapt quickly to changing requirements and thrive in a fast-paced, evolving environment.

Why Join Our Team?

  • Impact: You'll be working on critical embedded software that directly influences the efficiency and intelligence of commercial and industrial buildings globally.
  • Growth & Development: With significant opportunities for career advancement and mentorship from experienced professionals, you'll find ample room to grow your skills and take on new challenges. Our team values continuous learning and development.
  • Technology: Exposure to exciting new technologies or challenging problems.

Please contact Abdul on "" OR email me at ""

Salary : $60 - $70

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