Freelance International Android Developer Jobs in Chicago, IL

Note: We are looking to hire numerous Engineers; Priority will go to those with Steel/Metals software equipment experience.
Job Description
TMS International is the leading provider of on-site, industrial steel mill services for steelmakers around the world. At TMS, our people, services, technology and equipment provide invaluable resources that support and enhance our partners' entire manufacturing operations. Our services help lessen steelmakers' environmental impacts and contribute to a cleaner environment.
The secret to our success is the expertise of our people and our commitment to unrivaled service. We hire the best people for the job, equip them with what they need, and empower them to do whatever it takes to get the job done right, including making decisions on the spot to create immediate value for our partners.
Position Overview
Manufacturing Systems Software Engineer
Join a small engineering team developing and supporting high-availability software systems used in steel mills, scrap yards, docks, and furnace operations throughout North America.
Our company is the largest mill service provider in the Americas and is currently celebrating 100 years in the metals industry. Our engineering group develops operational software systems that directly support steel manufacturing and mill services operations in demanding industrial environments where reliability, responsiveness, and uptime are critical.
This is not a traditional IT role. Our software systems support real-time steel manufacturing operations and require high availability, responsiveness, and operational reliability.
We are seeking both entry-level and experienced software engineers who are practical problem solvers, self-directed, and interested in developing systems that interact directly with industrial operations and production personnel.
Responsibilities
• Design, develop, test, deploy, and maintain manufacturing and operational software systems
• Support software applications used in scrap yards, docks, scale systems, and furnace operations
• Work directly with operations personnel, supervisors, crane operators, and mill staff to understand operational requirements and improve workflows
• Troubleshoot software, communication, and hardware-related issues in industrial environments
• Develop and maintain database-driven applications and reporting systems
• Interface with PLC/process data systems and industrial communications
• Participate in system design, implementation, testing, and production support
• Support high-availability production systems where operational uptime is critical
• Assist with software deployment, upgrades, and system maintenance activities
• Participate in occasional after-hours support for critical production-impact issues
• Collaborate with other engineers while maintaining ownership of assigned systems and projects
Technologies and Environments
• Delphi / Object Pascal
• C++ / C#
• SQL Server, MySQL, Oracle
• REST APIs
• OPC
• Serial and TCP/IP communications
• Windows and Windows Server environments
• Android and iOS applications
• Python
• Machine Learning / AI applications related to scrap recognition and process optimization
Candidates with strong object-oriented programming experience in C++, C#, or similar development environments are encouraged to apply. Prior Delphi experience is helpful but not required.
Desired Qualifications
• Bachelor's degree in Computer Science, Computer Engineering, Software Engineering, or related discipline; equivalent experience will also be considered
• Strong analytical and problem-solving skills
• Excellent written and verbal communication skills
• Ability to work independently and manage projects in a production-oriented environment
• Comfortable working in industrial and manufacturing environments
• Ability to troubleshoot live production systems under operational conditions
• Practical engineering mindset with strong attention to reliability and performance
What Makes This Role Different
• Small engineering team with significant individual ownership and responsibility
• Direct involvement with real-world manufacturing operations
• Exposure to industrial automation, process optimization, and operational systems
• Opportunity to work on systems with immediate operational impact
• Stable, long-term industry environment with continued growth and expansion
• Opportunities to expand into ML/AI and advanced optimization technologies
Benefits:
• Dental insurance
• Disability insurance
• Health insurance
• Life insurance
• Paid time off
• Vision insurance
TMS International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, disability status or other characteristics protected by law.