TL;DR

The first 90 days of onboarding as a Software Development Engineer (SDE) at General Motors (GM) are crucial. Effective onboarding sets the tone for long-term success. A strong start requires understanding the company culture, technical setup, and project expectations.

Who This Is For

This article is for newly hired SDEs at GM, particularly those in the Software Development Engineer (SDE) role, who want to make a strong impression during their onboarding and first 90 days. It's also useful for hiring managers and team leads who support SDEs during this critical period.

What to Expect from GM SDE Onboarding

The GM SDE onboarding process typically lasts 6-12 weeks, with a structured program that includes technical training, team introductions, and project assignments. New hires can expect to receive a comprehensive laptop setup, access to GM's development tools, and meetings with key stakeholders. The goal is to get SDEs up to speed quickly and effectively.

> 📖 Related: GM new grad PM interview prep and what to expect 2026

How Does GM SDE Onboarding Differ from Other Companies?

Not all tech companies have the same onboarding approach, but GM's program is unique in its emphasis on hands-on technical training and integration with existing teams. Unlike some startups that throw new hires into projects immediately, GM takes a more structured approach. Not surprisingly, this structured approach leads to better outcomes, but it's not without its challenges.

What Are the Most Important Things to Learn During Onboarding?

The most critical things to learn during onboarding are not the technical skills, but the company culture, communication channels, and project expectations. Understanding GM's technology stack, development processes, and quality standards is essential. Not knowing these can lead to delays and mistakes.

> 📖 Related: GM PM hiring process complete guide 2026

How Can I Prepare for My First 90 Days as a GM SDE?

To prepare for the first 90 days, new hires should review GM's technology stack, familiarize themselves with the company's development processes, and understand the team's goals and objectives. Not doing so can lead to a rocky start. A good start involves setting clear goals, establishing a routine, and seeking feedback from colleagues and managers.

What Are the Biggest Challenges Faced by New GM SDEs?

New GM SDEs often face challenges adapting to the company's complex technology stack and bureaucratic processes. Not having a clear understanding of project expectations and timelines can lead to frustration. Another challenge is building relationships with colleagues and stakeholders, which is crucial for success.

Preparation Checklist

  • Review and understand GM's technology stack and development processes
  • Familiarize yourself with the team's goals, objectives, and project expectations
  • Set up your development environment and tools
  • Establish a routine for regular check-ins with your manager and team
  • Work through a structured preparation system (the PM Interview Playbook covers behavioral interview prep with real debrief examples)
  • Connect with colleagues and stakeholders to build relationships
  • Seek feedback and be open to constructive criticism

Mistakes to Avoid

BAD: Not setting clear goals and expectations with your manager and team.

GOOD: Establishing clear objectives and key results (OKRs) and regularly reviewing progress.

BAD: Failing to adapt to GM's unique culture and processes.

GOOD: Being open to learning and embracing the company's ways of working.

BAD: Not seeking feedback and support from colleagues and managers.

GOOD: Actively seeking feedback and using it to improve performance.

FAQ

Q: What is the typical salary range for a GM SDE?

A: The salary range for a GM SDE varies based on location, experience, and other factors, but typically falls between $120,000 and $180,000 per year.

Q: How long does the GM SDE onboarding process usually take?

A: The GM SDE onboarding process typically lasts 6-12 weeks, depending on the specific program and team.

Q: What are the most important skills for a GM SDE to have?

A: The most important skills for a GM SDE include proficiency in programming languages such as Java or Python, experience with agile development methodologies, and strong problem-solving and communication skills.

Ready to build a real interview prep system?

Get the full PM Interview Prep System →

The book is also available on Amazon Kindle.

Related Reading