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Dc Third Class Engineer Jobs in Chicago, IL (NOW HIRING)

... third-party AI services. * Evaluate foundation models, agent architectures, and AI workflows ... The opportunity to work alongside world-class engineers and researchers from more than 40 countries

Systems Engineer

Bartlett, IL · On-site

$90 - $120/hr

This position requires deep knowledge of DC motor control, AC/DC conversion, inverter functionality ... 3rd party partners in the industry. The systems engineer will also have to interact with a multi ...

Senior Resident Controls Engineer

Portage, IN · On-site

$89K - $117K/yr

... class customers. Responsibilities include development, implementation, testing and startup of ... Specify and configure various hardware components such as AC/DC drives, switchgear and industrial ...

Senior Resident Controls Engineer

Portage, IN · On-site

$89K - $117K/yr

... class customers. Responsibilities include development, implementation, testing and startup of ... Specify and configure various hardware components such as AC/DC drives, switchgear and industrial ...

Senior Resident Controls Engineer

Portage, IN · On-site

$89K - $117K/yr

... class customers. Responsibilities include development, implementation, testing and startup of ... Specify and configure various hardware components such as AC/DC drives, switchgear and industrial ...

Senior Resident Controls Engineer

Hammond, IN · On-site

$93K - $123K/yr

... class customers. Responsibilities include development, implementation, testing and startup of ... Specify and configure various hardware components such as AC/DC drives, switchgear and industrial ...

Pre- Sales Engineer

Chicago, IL · On-site

$130 - $170/hr

Work with alliance partners and external third parties to create joint GTM and solution deals ... Location Chicago, IL 60290 US (Primary) Plano, TX 75024 US Redmond, WA 98052 US Washington, DC ...

Project Engineer III

Hoffman Estates, IL · On-site

$85 - $110/hr

Development experience with low‑voltage DC motor control electronics is a plus * Experience using ... No fee will be paid to third parties who submit unsolicited candidates directly to our hiring ...

We offer world-class ability in giving most astounding quality and administrations through industry ... Washington, DC zone. Most as of late, USM was positioned #9 on the rundown of the Top ...

About Us: At AMETEK, we don't just manufacture world-class electronic instruments and ... AC-DC, DC-DC, and DC-AC power conversion * Control systems (PI/PID, feedforward) * EMI/EMC design ...

About Us: At AMETEK, we don't just manufacture world-class electronic instruments and ... AC-DC, DC-DC, and DC-AC power conversion * Control systems (PI/PID, feedforward) * EMI/EMC design ...

Substation Engineer II

Chicago, IL · On-site

$86K - $100K/yr

Projects range in size, complexity, and voltage class from small distribution equipment upgrades to ... Calculations for studies and reports (grounding, lighting protection, AC/DC load studies, etc.

We offer world-class ability in giving most astounding quality and administrations through industry ... Washington, DC zone. Most as of late, USM was positioned #9 on the rundown of the Top ...

CNC Operator/Set-up 3rd Shift

Grayslake, IL · On-site

$27.38 - $37.21/hr

... highly engineered mechanical and electromechanical locking devices, systems for world class ... Able to work 3rd shift. * Ability to read and interpret engineering drawings and blueprints to ...

MAINTENANCE MECHANIC - 3RD SHIFT

Addison, IL · On-site

$25 - $32/hr

... 3rd Shift/ 10:00pm to 6:30am Overtime: Voluntary OT is available Tool Allowance: $1,000 annual ... Electrical: 110 480V, AC & DC control, wiring & ladder diagrams, inverter programming, trouble ...

Showing results 21-40

Dc Third Class Engineer information

What is a DC Third Class Engineer?

DC Third Class Engineers are licensed professionals responsible for operating and maintaining boilers, engines, and other mechanical equipment in facilities such as buildings, plants, or ships. They typically hold a third-class engineering license, which allows them to supervise and work on lower-pressure boilers and related systems under certain restrictions. Their duties may include monitoring equipment, performing routine maintenance, troubleshooting issues, and ensuring safe and efficient operation in accordance with local regulations.

What are the key skills and qualifications needed to thrive as a DC Third Class Engineer?

To thrive as a DC Third Class Engineer, you need a strong understanding of boiler operation, mechanical systems maintenance, and compliance with safety regulations, typically validated by a Third Class Engineer license. Familiarity with control systems, HVAC equipment, and preventive maintenance management software is important. Attention to detail, problem-solving abilities, and effective communication skills are valuable soft skills in this role. These competencies ensure safe, efficient facility operations and help prevent costly equipment failures or safety incidents.

What are some common challenges faced by DC Third Class Engineers, and how can they effectively address them?

DC Third Class Engineers often face challenges like managing unexpected equipment malfunctions, balancing preventive maintenance with urgent repairs, and adhering to strict safety protocols in high-pressure environments. Effective communication with senior engineers and other maintenance staff is crucial for troubleshooting issues swiftly. Staying current with evolving technologies and participating in ongoing training can also help engineers remain effective in their roles and open paths for career advancement.
Infographic showing various Dc Third Class Engineer job openings in Chicago, IL as of August 2026, with employment types broken down into 1% As Needed, 69% Full Time, 29% Part Time, and 1% Contract. Highlights an 95% Physical, 2% Hybrid, and 3% Remote job distribution.

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 6 days ago


Job description

We're looking for an experienced AI Engineer to join Optiver's Applied AI and Platform Engineering team. In this role, you'll design, build, and deploy production-grade AI systems that automate workflows, augment decision-making, and accelerate engineering across the firm. You'll own the full lifecycle-from identifying opportunities and translating ambiguous business problems into scalable AI solutions to deploying, operating, and continuously improving systems in production. You'll combine strong software engineering with pragmatic AI expertise to build reliable AI products that deliver measurable business impact.

What you'll do

As an AI Engineer, you will:

  • Design, build, and deploy production-grade AI systems and products-including agent platforms, AI assistants, code review harnesses, evaluation frameworks, and agentic research pipelines-using Python and modern AI frameworks integrated with internal systems, data platforms, and third-party AI services.
  • Evaluate foundation models, agent architectures, and AI workflows, making pragmatic technology decisions based on capability, reliability, latency, security, cost, and business impact.
  • Define success metrics and build robust evaluation frameworks, benchmarking tools, and observability capabilities to measure AI quality, safety, performance, and production readiness while enabling continuous improvement.
  • Translate ambiguous business challenges into scalable technical solutions, ensuring AI-assisted development produces reliable software that meets both functional requirements and business objectives.
  • Design resilient, distributed AI systems with a focus on scalability, state management, authentication, fault tolerance, security, and operational reliability.
  • Rapidly prototype and experiment with emerging models, tools, and workflows, validating new capabilities against measurable success criteria before investing in production.
  • Partner closely with trading, research, and business teams to understand user needs, challenge assumptions, rapidly iterate on solutions, and evolve successful use cases into reusable platform capabilities.
  • Deliver high-quality, maintainable software through sound software engineering practices, automated testing, and thoughtful code reviews.
  • Operate, monitor, and continuously improve production AI systems by optimizing quality, reliability, latency, cost efficiency, governance, and user outcomes.

What you'll get

You'll join a culture of collaboration and excellence, surrounded by curious thinkers and creative problem-solvers. Motivated by continuous improvement, you'll thrive in a supportive, high-performing environment while tackling some of the toughest technical challenges in the financial markets.

In addition, you'll receive:

  • The opportunity to work alongside world-class engineers and researchers from more than 40 countries
  • A highly competitive compensation package, including a performance-based bonus
  • A 401(k) match of up to 50%
  • Comprehensive medical, dental, vision, mental health, disability, and life insurance
  • 25 days of paid vacation, plus market holidays
  • Extensive office perks, including breakfast, lunch, snacks, social events, clubs, sports leagues, and more

Who you are

  • Bachelor's degree in Computer Science, Artificial Intelligence, or a related technical field
  • 6+ years of professional software engineering experience, including extensive production experience developing applications in Python
  • Strong software engineering fundamentals, including software architecture, object-oriented design, design patterns, distributed systems, testing, and building scalable, resilient applications
  • Experience designing, deploying, and operating production LLM applications, with practical knowledge of model evaluation, prompt engineering, tool calling, context management, agent orchestration, and common failure modes
  • Experience defining evaluation frameworks and using quantitative metrics to guide model selection, prompt iteration, and production readiness
  • Experience integrating AI systems with external tools, APIs, Model Context Protocol (MCP), and modern AI application frameworks
  • Strong engineering judgment, with the ability to determine when AI is the right solution-and when traditional software or deterministic automation is more appropriate
  • Experience building highly reliable production systems where correctness, resiliency, observability, and operational excellence are essential
  • Strong product mindset, with the ability to translate ambiguous business problems into practical technical solutions that deliver measurable business outcomes
  • Excellent communication and collaboration skills, with experience partnering directly with cross-functional teams and end users to refine requirements, challenge assumptions, and deliver scalable solutions
  • Strong problem-solving skills and the ability to thrive in a fast-paced, dynamic environment

Who we are

At Optiver, our mission is to improve the market by injecting liquidity, providing accurate pricing, increasing transparency and stabilizing the market no matter the conditions. With a focus on continuous improvement, we prioritize safeguarding the health and efficiency of the markets for all participants. As one of the largest market making institutions, we are a respected partner on 100+ exchanges across the globe.

Our differences are our edge. Optiver does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, physical or mental disability, or other legally protected characteristics.