Engineering Levels in Different Companies Compared

Hari Mahesh

Navigating a career in leading technology companies like Google, Apple, Microsoft, Amazon, and Facebook has a unique journey marked by distinct engineering levels. These corporations have revolutionized how we live, work, and communicate, and their engineering hierarchies reflect their commitment to excellence and innovation.

The skills required and the tech stack are drastically changing with AI in engineering, vibe coding, and coding assistants.

This article summarizes the engineering levels within these tech giants, shedding light on the career progression pathways, challenges, skills, and processes you can expect as you embark on a professional journey.

Read: What are Vibe Coding and Vibe Testing?

Interview Process

1. Application: Start by applying online through the organization’s careers portal or job portals.
2. Screening: Recruiter screening call to discuss experience, projects, role expectations, and salary range. The resume evaluation happens and leads to initial shortlisting.
3. Online Assessment: A coding test with data structures and algorithms questions.
4. Technical Interview: Technical phone/video interviews focused on coding, debugging, and problem-solving.
5. Design Skills: System design interview for experienced engineers or senior roles.
6. People Skills: Behavioral or leadership interviews to assess communication, teamwork, and culture fit.
7. Domain-related Evaluation: Domain-specific rounds depending on the role (backend, frontend, AI/ML, security, cloud, etc.). It can happen onsite or in a virtual interview loop with multiple interviewers.
8. Feedback: Interview feedback review by the hiring committee or panel.
9. Final Discussion (HR): Level evaluation, compensation discussion, and final offer decision at companies like Google, Meta, and Microsoft.
10. Hiring Committee: A committee reviews your interview feedback and makes a decision.

Required Skills

1. Coding and Algorithms: Strong coding skills, algorithmic knowledge, and problem-solving abilities are essential, especially for entry-level positions.
2. Data Structures: Proficiency in data structures and their applications is crucial.
3. System Design: For more senior roles, you’ll need expertise in designing complex systems.
4. AI and Machine Learning Skills: Knowledge of artificial intelligence concepts, machine learning fundamentals, prompt engineering, AI-assisted development tools, model evaluation, and working with APIs or frameworks such as TensorFlow and PyTorch is increasingly valuable across modern engineering roles. Familiarity with generative AI, LLM applications, automation workflows, and responsible AI practices can provide a strong advantage.
5. Domain Knowledge: Depending on the team, knowledge of specific domains such as machine learning, networking, or distributed systems may be required. For example, iOS development and macOS knowledge are necessary in the Apple interview process.
6. Soft Skills: Effective communication, collaboration, and adaptability are valued at all levels.
7. Leadership: As you progress to higher levels, leadership and managerial skills become increasingly important.

Read: Will AI Replace IDEs? The Rise of Agentic Coding.

Challenges

1. Competitive Selection: These tech giants attract top talent globally, making the competition fierce.
2. Complex Technical Interviews: The technical interviews can be challenging, requiring in-depth knowledge of data structures, algorithms, and problem-solving under pressure.
3. Cultural Fit: These organizations strongly emphasize cultural fit, so candidates should align with the company’s values and mission.
4. Adaptability: Engineers must continuously learn and adapt as technology evolves to stay relevant.
5. Scaling and Complexity: You’ll face complex technical challenges at higher levels, often involving scaling products to millions or billions of users.
6. Leadership Expectations: Leadership roles guide teams and make high-impact decisions.
7. Innovation: Engineers are expected to contribute to groundbreaking technologies and products.
8. Attention to Detail: These top tech companies are renowned for their meticulous attention to detail, and engineers are expected to maintain high quality in their work.
9. Design Excellence: Engineers are expected to ensure that products are functional and aesthetically pleasing.

In the next sections, let us look at the different engineering levels in these organizations.

Google

L2(Level 2): Software Engineer I

An intern in the final year of an engineering degree or a fresh college graduate is hired at L2.

L3(Level 3): Software Engineer II

An undergraduate or master’s degree engineer is a good fit at L3 with 0-1 years of experience.

L4(Level 4): Software Engineer III

Google hires engineers with 2-4 years of experience or a Ph.D. at L4.

L5(Level 5): Senior Software Engineer

Engineers with 6+ years of work experience are hired at L5.

L6(Level 6): Staff Software Engineer

Manager roles and responsibilities start at this level with 10+ years of experience.

L7(Level 7): Senior Staff Software Engineer

This level is equivalent to a Senior Manager role with 10+ years of experience.

L8(Level 8): Principal Software Engineer

This leadership role is equivalent to a Director role in an organization.

L9(Level 9): Distinguished Software Engineer

Technically accomplished individual with leadership qualities, equivalent to a Senior Director role.

L10(Level 10): Google Fellow

One of the highest technical individual contributor roles at Google, focused on groundbreaking innovation and large-scale influence.

L11(Level 11): Google Senior Fellow

At L11, a Google Senior Fellow is the equivalent of a Senior Vice President.

Note: Google generally does not tie levels strictly to exact years of experience because interview performance and impact matter more.

Amazon

L4(Level 4): SDE I

Fresh college graduates are hired at L4 as entry-level Amazon Software Engineer Level 4 in Amazon.

L5(Level 5): SDE II

After 2-3 years of experience, SDE I is promoted to SDE II.

L6(Level 6): Senior SDE

Level 6 engineers require around 8 years of experience.

L7(Level 7): Principal SDE

High-impact technical leaders driving organization-level architecture and strategy across multiple teams. This is an individual contributor leadership role, not necessarily a people-management role (though it could be).

L8(Level 8): Senior Principal SDE

Level 8 is equivalent to a Director role requiring more than 10 years of experience handling complex systems.

L9 – L10(Level 9/10): Distinguished SDE

Level 9 or 10 has very few people in the organization. Level 10 positions include a CTO (Chief Technical Officer), Vice President (VP), or Distinguished SDE.

Facebook (Meta)

E3(Level 1): Software Engineer (Entry)

Entry-level engineers, typically interns converting to full-time roles, new graduates, or candidates with 0-2 years of experience. Engineers at this level work with guidance from senior team members.

E4(Level 2): Software Engineer (Mid-level)

Engineers who can independently deliver features and contribute to system design. Usually requires around 2-5 years of experience.

E5(Level 3): Senior Software Engineer

Senior engineers are responsible for leading projects, mentoring others, and driving technical decisions across teams. Often requires around 5-8+ years of experience.

E6(Level 4): Staff Software Engineer

Highly influential technical leaders with ownership of major systems and cross-team architecture. This is a senior individual contributor role, not necessarily management.

E7(Level 5): Senior Staff Software Engineer

Organization-level technical leadership with significant influence on engineering strategy, scalability, and long-term technical direction.

E8(Level 6): Principal Engineer

One of the highest individual contributor engineering roles at Meta, equivalent in influence to Director-level leadership. Engineers at this level shape company-wide technical vision and major platform decisions.

Note: Meta also has higher levels, such as E9 and E10 for Distinguished Engineers and top-tier technical leadership, but these roles are extremely rare.

Apple

At Apple, the ICT (Individual Contributor Technical) ladder is commonly referenced, but the exact titles and mappings are often unofficial.

ICT2(Level 1): Software Engineer (Entry-level)

Level 1 is the entry-level position; usually, new graduates are hired at this level.

ICT3(Level 2): Software Engineer (Intermediate-level)

Software engineers with an intermediate experience level are hired at this level.

ICT4(Level 3): Senior Software Engineer

Senior engineers are responsible for larger technical ownership, mentoring, and system-level contributions. Often requires around 5-8 years of experience.

ICT5(Level 4): Staff Software Engineer / Senior Staff Engineer

High-impact technical leaders responsible for architecture, cross-team collaboration, and major technical initiatives.

ICT6(Level 5): Principal Engineer / Senior Principal Engineer

Very senior technical leadership role with organization-wide influence on engineering strategy and product direction.

Note: Apple employs a consistent nomenclature for its senior staff, refraining from designating unique titles. Instead, all software engineers are uniformly addressed as Software Engineers, complemented by a rank that signifies their level of seniority.

Microsoft

Level 57

The job title is Intern, and fresh college graduates are hired for this level.

Level 58

The job title is Contractor with different years of experience.

Level 59: Software Development Engineer (SDE)

The job title at these levels is Software Development Engineer (SDE), and there are two distinct salary tiers for entry-level software development engineers, designated as levels 59 and 60.

Level 60 – 61: Software Development Engineer (SDE) II

Engineers work more independently, contribute to larger features, and typically have around 2-5 years of experience.

Level 62-63: Senior Software Development Engineer (Senior SDE)

Senior engineers lead projects, mentor team members, and make architectural contributions.

Level 64-65: Principal Software Development Engineer (Principal SDE)

Highly experienced engineers with significant cross-team technical ownership and strategic influence.

Level 66-67: Partner Software Development Engineer (Partner SDE)

The job title at these levels is Partner SDE, with experience of 12-16 years. Very senior technical leaders with organization-wide impact and long-term technical vision.

Level 68-69: Distinguished Engineer / Corporate Vice President

The job titles at these levels are Vice President and Distinguished Engineer, with experience of 17-25 years. Extremely senior leadership roles with major influence across Microsoft products and engineering strategy.

Level 80+: Technical Fellow

The job title at this level is Technical Fellow, with experience of 25+ years. Rare executive-level technical positions focused on innovation, company-wide strategy, and industry leadership.

Note: Exact years of experience vary widely because Microsoft levels are based more on impact, scope, and interview performance than strict tenure.

Cross-company Engineering Level Mapping

Individual Contributor (IC) vs. Management Track

One of the biggest career decisions engineers face is whether to pursue technical leadership or people management.

IC Track

• Deep Technical Ownership: ICs take full responsibility for designing, building, and maintaining complex systems or components with high reliability and performance standards.
• Architecture Leadership: They lead the technical direction of systems by defining scalable, maintainable, and future-proof architectural solutions.
• Cross-team Influence: Senior ICs collaborate across multiple teams to align technical decisions, resolve dependencies, and drive organization-wide engineering improvements.
• Long-term Technical Strategy: They shape long-term technical roadmaps by identifying emerging technologies, mitigating technical debt, and ensuring sustainable system evolution.

Management Track

• Hiring: Engineering managers are responsible for building strong teams by identifying talent needs, conducting interviews, and making strategic hiring decisions.
• Performance Reviews: Managers evaluate team members’ performance, provide structured feedback, and guide career growth through regular review cycles.
• Delivery Accountability: They ensure projects are delivered on time and meet quality expectations by coordinating resources, managing risks, and aligning priorities.
• Organizational Planning: Managers contribute to long-term organizational success by defining team structure, setting strategic goals, and aligning engineering efforts with business objectives.

Engineering Levels at Top Companies: Differences

Here are some basic differences between the engineering levels at top companies.

Level Progression

Amazon: Clear-cut numerical progression (L4 to L10).

Google: Focuses on technical impact rather than just years of experience.

Meta: Emphasizes individual contributions and team influence.

Microsoft: Balances technical expertise with leadership qualities.

Startups: Roles are often blurred due to the dynamic environment.

Culture and Expectations

Amazon: Known for its “Leadership Principles,” engineers are expected to think big and deliver results.

Google: Emphasizes innovation and collaboration.

Meta: Focused on personal impact and growth.

Microsoft: Combines technical execution with leadership.

Startups: Engineers wear multiple hats, offering faster career progression.

A Few More Insights

Terminology: While “Senior Engineer” may be the same across companies, titles like “Staff” or “Principal” can differ in scope.

Promotion Criteria: Google emphasizes system design and innovation. Amazon values delivery and ownership.Meta prioritizes collaboration and scalability.

Scope of Influence: Senior ICs (Individual Contributors) at Google or Microsoft often have a broader technical scope than at smaller companies.

Resources to Read

• Full-Stack Engineer: Job Description and Responsibilities
• Scrum vs. Kanban vs. Lean: Choosing Your Path in Agile Development
• Director of Engineering Cheat Sheet
• Top-25 VP of Engineering Interview Questions

In a forest of a hundred thousand trees, no two leaves are alike. And no two journeys along the same path are alike. – Paulo Coelho

Tech giants like Google, Apple, Microsoft, Amazon, and Facebook demonstrate the structured progression and diverse career paths available for engineers within these organizations. From entry-level positions with opportunities for skill development to more senior roles encompassing leadership and strategic responsibilities, these companies offer a framework for career growth.

Each organization may have its terminology and criteria, but they all share a commitment to fostering talent and innovation in the ever-evolving landscape of technology. If you aspire to join them, consider these engineering levels carefully when planning career trajectories within these influential tech companies.

Frequently Asked Questions (FAQs)

1. Are engineering levels directly equivalent across Google, Amazon, Meta, Apple, and Microsoft?
   No, levels are not perfectly equivalent. While the scope and impact may be similar, each company defines expectations, performance standards, and promotion criteria differently.
2. How important is system design for senior roles?
   System design is critical for mid-level and senior roles. Engineers are expected to design scalable, reliable, and maintainable systems rather than just implement features.
3. What differentiates a Senior Engineer from a Staff Engineer?
   A Senior Engineer typically leads projects within a team, while a Staff Engineer influences multiple teams, defines architecture, and drives cross-organizational initiatives.

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