Freelance Integration Software Engineer Jobs in Dallas, TX

PACCAR's Electronics Technical Project Management team is seeking a Software Integration Lead Engineer to lead the planning, coordination, and delivery of integrated electronic control unit (ECU) systems across PACCAR's global truck platforms. This role will report to the Head of Project Management. 

This is a new, strategic role, to increase quality, maintain stakeholder alignment and expectations, and provide leadership necessary to successfully integrate multiple ECUs from different teams. The ideal candidate will be a self-starter comfortable with ambiguity and capable of building processes, tools, and deliverables from the ground up. 

Location: Kirkland, WA or Lewisville, TX

• Lead end-to-end integration leadership for ECUs across vehicle programs, ensuring alignment of scope, timing, and dependencies 
• Serve as the primary integration focal point embedded engineering teams, vehicle program leadership, and key stakeholders 
• Drive coordination across software, hardware, electrical, validation, and vehicle teams to ensure integration readiness and milestone achievement 
• Establish and maintain integration schedules, including critical path, interdependencies, and cross-functional deliverables 
• Track and ensure on-time delivery of multiple ECUs required for test activities, pilot builds, and production launch 
• Identify and escalate integration risks, including timing mismatches, interface gaps, and incomplete system definitions 
• Facilitate cross-functional integration reviews and readiness checkpoints 
• Develop and implement new processes, tools, reports, and best practices for ECU integration management 
• Challenge engineering teams on their designs and assumptions 

• B.S. in Engineering (Electrical, Computer, Mechanical), Computer Science, or related discipline 
• 7+ years of experience in product development, embedded systems, system integration, or technical program/project management 
• Experience working with embedded systems, ECUs, or vehicle electronics architectures 
• Technical depth to confidently participate in discussions on system integration, interfaces, and embedded software behavior 
• Ability to identify issues early, ask challenging questions, and drive resolution 
• Proven ability to influence without authority 
• Experience with project planning, schedule management, and dependency tracking 
• Demonstrated ability to operate effectively in ambiguous, fast-evolving environments 
• Strong organizational skills with attention to detail 
• Excellent communication skills with the ability to engage both technical and non-technical stakeholders 
• Ability to travel domestically and internationally up to 10% 

• Familiarity with vehicle network protocols (CAN, SAE J1939, LIN) 
• Experience with software architecture and application software design 
• Experience with system integration 
• Experience with HIL, SIL, bench, and property (vehicle) testing 
• Experience with ASPICE, ISO 26262, or similar frameworks 

PACCAR, Inc. is a Fortune 500 company established in 1905 and is recognized as a global leader in the commercial vehicle, financial, and customer service fields. PACCAR is a global technology leader in the design, manufacture, and customer support of high-quality light-, medium- and heavy-duty trucks. 

The Global PACCAR Electronics organization supports Kenworth, Peterbilt, and DAF by transforming how control systems and vehicle software are developed for commercial vehicle applications. 

• 401k with up to a 5% company match
• Fully funded pension plan that provides monthly benefits after retirement
• Comprehensive PTO - minimum of 10 paid vacation days (additional days are provided with additional seniority/years of service), 12 paid holidays, and sick time
• Tuition reimbursement for continued education
• Medical, dental, and vision plans for you and your family
• Flexible spending account (FSA) and health account (HSA)
• Paid short-and-long-term disability programs
• Life and accidental death and dismemberment insurance
• EAP services include wellness plans, estate planning, financial counseling and more

PACCAR is an Equal Opportunity Employer/Protected Veteran/Disability. At PACCAR, we value talent and promote growth and development. We carefully consider numerous compensation factors, including your education, training, or experience. Applicants and employees for this position will not be sponsored for work authorization, including, but not limited to H-1B visas, now or in the future. The salary range for the Software Integration Lead Engineer is $104,100 - $162,900 annually. Additionally, this role is eligible for a full range of benefit options listed above. This position is also eligible for a holiday gift. 

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