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Full Time Software Engineer Startup Jobs in Illinois

Databento

Software Engineer (C++/Rust)

Chicago, IL · On-site +1

Preferred background * 5+ years of full-time software engineering experience, preferably at a trading firm, tech company, or high-growth startup. * Strong proficiency in C/C++ or Rust. * Knowledge of ...

MBR Partners

Senior Software Engineer

Chicago, IL · Remote

$150K/yr

With a back-end team in the Philippines, I'm currently hiring for a Senior Software Engineer / Staff Engineer to join our client's startup where they are already No1 order-taking system for drive ...

JCSI

Software Engineer

Chicago, IL

Senior Software Engineer (.NET / Angular) - Hybrid Location: Chicago, Il About the Company A ... Experience working in high-growth SaaS or startup environments * Experience leveraging analytics ...

TransMarket Group

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

... also is like a startup because the potential of our group is at least one order of magnitude ... We are proud to offer more world-class benefits for our full-time employees and their families.

MessageControl

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

As a Software Engineer at MessageControl you'll be building intelligent products to protect people ... You've previously worked at a startup or think you'll enjoy working on many things you've never ...

MessageControl

Senior Software Engineer

Chicago, IL · On-site +1

$126K - $166K/yr

As a Software Engineer at MessageControl you'll be building intelligent products to protect people ... You've previously worked at a startup or think you'll enjoy working on many things you've never ...

ITW Avery Weigh-Tronix

Embedded Software Engineer

IL

$135K - $178K/yr

Objective of role: The Embedded Software Engineer is responsible for the design, development ... to startup behavior, communication failures, timing issues, memory, and interaction between ...

Civis Analytics

Software Engineer (Contract)

Chicago, IL · On-site +1

$90K/yr

Virginia Civis is hiring a Software Engineer (Contract) to build and ship high-quality software ... The opportunity to be part of a growing tech startup focused on solving interesting and meaningful ...

Blueprint

Fullstack Software Engineer

Chicago, IL · On-site

Blueprint is an early-stage, venture-backed startup based in Chicago focused on tracking and treating mental illness through innovative technology. They are seeking a Fullstack Software Engineer to ...

Lean Synergy Solutions

Software Engineer

Rockford, IL

$80K - $120K/yr

Employment Type: Full-Time Key Responsibilities * Design, develop, analyze, debug, test, and maintain software applications for industrial machine and computer systems. * Investigate engineering ...

BAI

Software Engineer

Chicago, IL · On-site +1

$75K - $95K/yr

Software Engineer Reports To: Manager, Software Engineering BAI and RMA have come together as ... Full-Time

Miller Cooper

Full Stack Software Engineer

Chicago, IL · Remote

$125K - $145K/yr

Full Stack Software Engineer RCM Platform Are you ready to join a cutting-edge healthcare startup dedicated to revolutionizing the industry through innovative technologies? Our client, National ...

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All JobsSoftware Engineer Startup JobsFull Time Software Engineer Startup JobsFull Time Software Engineer Startup Jobs in Illinois

Full Time Software Engineer Startup information

What is the difference between Full Time Software Engineer Startup vs Full Time Software Engineer Corporate?

AspectFull Time Software Engineer StartupFull Time Software Engineer Corporate
Work EnvironmentFast-paced, dynamic, small teamsStructured, larger teams, established processes
ResponsibilitiesBroader scope, wearing multiple hatsSpecialized, focused on specific areas
Career GrowthRapid learning, potential for quick advancementStructured career paths, steady progression
Compensation & BenefitsVariable, often equity-basedStable salary, comprehensive benefits

In summary, Full Time Software Engineer roles at startups offer a dynamic environment with broader responsibilities and potential for rapid growth, often with equity options. Corporate roles tend to provide more structure, specialized tasks, and stable compensation, making them suitable for those seeking stability and clear career progression.

What does a Full Time Software Engineer do at a startup?

A Full Time Software Engineer at a startup is responsible for designing, coding, testing, and maintaining software applications or systems that are central to the company’s product or service. In a startup environment, engineers often work on a wide range of tasks, from building new features and fixing bugs to collaborating on system architecture and deployment. They typically work closely with founders, designers, and other team members, adapting quickly to changing requirements and helping the company scale. The fast-paced and dynamic nature of startups often means engineers have significant ownership and impact on the final product.

What are the key skills and qualifications needed to thrive as a Full Time Software Engineer at a startup, and why are they important?

To thrive as a Full Time Software Engineer at a startup, you need strong programming skills, problem-solving abilities, and a degree in computer science or related field. Familiarity with modern development frameworks, cloud platforms, version control systems like Git, and agile methodologies is typically required. Adaptability, proactive communication, and a collaborative mindset help you excel in a fast-paced, evolving environment. These skills are crucial for quickly building, iterating, and scaling products while contributing effectively to a small, dynamic team.

What unique challenges might a Full Time Software Engineer face when working at a startup compared to a larger company?

As a Full Time Software Engineer at a startup, you may encounter rapidly changing priorities and a fast-paced environment where flexibility is key. Unlike larger companies with specialized teams, you’ll likely wear multiple hats, contributing to various parts of the tech stack and sometimes assisting with non-coding tasks. This dynamic can be both challenging and rewarding, offering opportunities to have a direct impact on the product and company growth. Close collaboration with founders and cross-functional teams is typical, fostering a culture of innovation and learning.
What are the most commonly searched types of Software Engineer Startup jobs in Illinois? The most popular types of Software Engineer Startup jobs in Illinois are:
What are popular job titles related to Full Time Software Engineer Startup jobs in Illinois? For Full Time Software Engineer Startup jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Full Time Software Engineer Startup jobs in Illinois look for? The top searched job categories for Full Time Software Engineer Startup jobs in Illinois are:
What cities in Illinois are hiring for Full Time Software Engineer Startup jobs? Cities in Illinois with the most Full Time Software Engineer Startup job openings:
Full Time Software Engineer Startup jobs near you
Infographic showing various Full Time Software Engineer Startup job openings in Illinois as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.
Building Automation Systems (BAS) Field Engineer - Startup & Commissioning

Building Automation Systems (BAS) Field Engineer - Startup & Commissioning

Liberty Personnel Services, Inc

Springfield, IL

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 18 days ago

Job description

Building Automation Systems (BAS) Field Engineer – Startup & Commissioning

We're seeking an experienced BAS Field Engineer to lead startup, commissioning, and project delivery for commercial Building Automation Systems.

This role is ideal for someone who enjoys bringing complex HVAC automation systems online, solving challenging technical issues, and ensuring projects are successfully commissioned from startup through owner turnover.

Responsibilities

  • Perform BAS startup and commissioning
  • Verify system operation and sequences of operation
  • Troubleshoot DDC controllers, networks, and HVAC equipment
  • Optimize system performance and resolve integration issues
  • Complete customer training and project turnover
  • Coordinate with project managers, electricians, mechanical contractors, and end users
  • Support successful project completion from installation through commissioning

Qualifications

  • 5+ years of Building Automation Systems experience
  • Experience commissioning commercial BAS projects
  • Strong HVAC mechanical knowledge
  • Advanced troubleshooting skills
  • Ability to work independently in the field
  • Excellent communication and customer-facing skills

Our client provides excellent compensation and benefits package: Competitive hourly rate, company vehicle, Medical, Dental & Vision Insurance, 401(k), PTO, continued professional development assistance, established stable organization with excellent long-term career opportunities.

Please send a current copy of your resume to for consideration.

Alex Showers

Liberty Personnel Services

#Controls

#Midsenior

#LI-AS1

Key Words: (HVAC, Building Automation, Controls, Niagara, JACE, Johnson Controls, BAS, DDC, BAC, BAU, Direct Digital Controls, MRI, LON, LonWorks, BACnet, MODbus, Johnson Controls, ATC Controls, Automatic Temperature Controls, Invensys, Metasys, Niagara AX, Building Automation Graphics, EBI, Symmetre, EMS, BMS, temperature controls)

#BASControls #BuildingAutomation #ControlsEngineer #HVACControls #Niagara #JACE #JohnsonControls #Programming #MechanicalEngineering #AutomationJobs #LibertyJobs

Company Description

Libertyjobs.com has become an essential destination site for experienced job seekers. Our recruiters are continually posting active job openings to the website. Feel free to search our database of open positions and apply for your next career move!
Hundreds of new jobs are listed on the site every month in a wide range of industries and locations. Last year we had over 900,000 unique job seekers visit our website, which means over 75,000 skilled job seekers search our openings every month.
Established in 2003, Liberty Personnel quickly grew into one of the largest technical recruiting agencies on the East Coast. Today, Liberty Personnel has a national presence and a diverse client base. Listed below are a number of the industries and openings we work on:
Information Technology, Software Programmers, Engineering, Manufacturing, Legal, Plant Maintenance, Construction, Oil and Gas, Medical Communications, Accounting, Finance, Electronics, Scientific, Medical Device, Sales, Pharmaceutical, Admin, Automation, Controls, Civil, HVAC, Wastewater, Structural, Electrical, Chemists, Validations, Logistics, Food Production, Renewable Energy and Machinists.