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Tech Resume Guide: Resume and CV Examples, Common Mistakes, and Tips

Learn how to write a tech resume that actually gets interviews. Includes examples, common mistakes to avoid, key sections, and tips for software engineers.

</> Olivia - Staff
Last updated: December 2025 • 15 min read

Olivia

San Francisco, CA • olivia@email.com • (555) 123-4567
github.com/olivia • linkedin.com/in/olivia • olivia.dev
Skills
Languages: Python, JavaScript, SQL, Go
Frameworks: React, Node.js, Django, FastAPI
Tools: Git, Docker, AWS, PostgreSQL, Redis
Experience
Senior Software Engineer
2022–Present
TechCorp Inc., San Francisco, CA
  • • Built real-time analytics dashboard serving 50K+ daily users, reducing load times by 60%
  • • Led migration of monolithic app to microservices architecture, improving deployment frequency from weekly to daily
  • • Implemented CI/CD pipeline using GitHub Actions, reducing deployment time from 2 hours to 15 minutes
Software Engineer
2020–2022
StartupXYZ, San Francisco, CA
  • • Developed RESTful APIs handling 10M+ requests/day with 99.9% uptime
  • • Optimized database queries, reducing average response time from 850ms to 120ms
  • • Built automated testing suite, increasing code coverage from 60% to 95%
Projects
TaskFlow
2023
Real-time collaborative task management app for remote teams
Tech: React, Node.js, WebSocket, MongoDB
github.com/olivia/taskflow • 2.1K stars
Education
BS Computer Science
University of California, Berkeley
2016–2020

This is how a professional tech resume looks like.


What Is a Tech Resume?

A tech resume is your professional story told through the lens of technical capability. It's the document that sits between you and your next role, whether you're applying to a startup, a FAANG company, or anywhere in between.

Unlike resumes in other fields, a tech resume needs to prove you can do the work. Hiring managers spend about six seconds on initial screening. In that time, they're looking for specific technologies, concrete achievements, and evidence that you've shipped real products or solved actual problems.

The format matters less than the substance. You could use a single-column layout or a two-column design. You might choose a minimalist aesthetic or something with a bit more personality. What you can't do is hide weak experience behind fancy formatting or skip the technical details that prove your competence.

Your tech resume should answer three questions immediately: What technologies do you know? What have you built? What impact did your work have? If someone can't answer these questions within the first third of your resume, you need to restructure it.

The best tech resumes read like documentation for a product. They're clear, scannable, and specific. They include version numbers, frameworks, and measurable outcomes. They show growth over time and demonstrate that you understand how your individual contributions connect to larger business goals.


Tech Resume vs Traditional Resume

The differences between tech resumes and traditional resumes run deeper than you might think.

Traditional resumes emphasize job titles, company names, and tenure. They follow a predictable structure: objective statement, work history in reverse chronological order, education, and perhaps a brief skills section. The language tends toward the generic. Responsibilities get described with phrases like "managed a team" or "oversaw projects."

Tech resumes flip several of these conventions. Your GitHub contributions might matter more than your degree. A side project that got traction on Product Hunt could outweigh a mediocre stint at a big company. The technologies you've mastered and the problems you've solved take center stage.

Where traditional resumes bury technical skills at the bottom, tech resumes often put them near the top. This isn't arbitrary. Technical recruiters and hiring managers frequently search resumes for specific keywords: React, Python, Kubernetes, PostgreSQL. If these terms are buried on page two, your resume might never get read by a human.

The language differs too. Traditional resumes use action verbs like "coordinated" and "facilitated." Tech resumes get specific: "Reduced API latency by 45% by implementing Redis caching and optimizing PostgreSQL queries, serving 2M+ daily requests."

Projects section? Almost never appears on traditional resumes. On tech resumes, it's often the most important section, especially for entry-level and mid-level engineers or anyone making a career transition.

Traditional resumes can stretch to two pages for mid-career professionals. Tech resumes should stay tight. One page for engineers with less than five years of experience. Two pages maximum for everyone else. Any longer and you're either padding or you haven't learned to edit ruthlessly.

The biggest difference is proof. Traditional resumes tell. Tech resumes show. Anyone can claim they're a "team player" or have "strong communication skills." But only someone who's actually done the work can explain how they optimized a database query or why they chose microservices over a monolith.


Key Sections Every Tech Resume Must Have

Contact Information and Links

Start with your name, phone number, email, and location (city and state—no full address needed). Then add your GitHub, LinkedIn, and personal portfolio or website if you have one. These links aren't optional. Hiring managers will check your GitHub to see if you actually code. They'll look at your portfolio to evaluate your work. Dead links or empty profiles are worse than no links at all.

Technical Skills

This section needs to appear early, typically right after your contact information. Organize your skills into categories: languages, frameworks, databases, tools, and platforms. List them honestly. If you used React once for a tutorial three years ago, don't list it. If you've built production applications with it, put it at the front.

Avoid rating your skills with bars or percentages. They mean nothing and waste space. Instead, order them by proficiency within each category. Put your strongest skills first.

Professional Experience

List your work history in reverse chronological order. For each role, include the company name, your title, dates of employment, and three to five bullet points describing your work.

Each bullet point should follow this pattern: action you took, context or technologies used, measurable result. "Implemented a caching layer using Redis, reducing database load by 60% and improving page load times for 2M+ daily active users."

Numbers matter. Lines of code don't count as a meaningful metric, but user impact, performance improvements, cost savings, and time saved all do.

Projects

For many engineers, especially those early in their careers, this section carries more weight than work experience. Personal projects, open-source contributions, hackathon wins—they all belong here.

Each project needs a name, a one-line description, the technologies used, and a link to the live demo or repository. Then explain what problem it solves and what you learned building it. Bonus points if you can quantify impact: number of users, stars on GitHub, or performance benchmarks.

Education

Keep this section brief unless you're a recent graduate. School name, degree, major, graduation year. That's it. Your GPA only matters if it's above 3.5 and you graduated within the last two years. Relevant coursework makes sense for new grads but looks odd for someone five years into their career.

Certifications can go here or in a separate section if you have several. AWS, Google Cloud, Kubernetes certifications—these carry weight. Random Udemy course completions don't need to be listed.


Skills Section for Tech Resumes

The skills section is where most engineers make one of two mistakes: they list everything they've ever touched, or they're too modest and leave out important technologies.

Start by reading job descriptions for roles you want. Note which technologies appear repeatedly. These are table stakes. If you don't have them, consider whether you need to learn them before applying. If you do have them, they need to be visible immediately.

Organize your skills into logical groupings. A typical structure might look like:

  • Languages: JavaScript, Python, Java, SQL, HTML/CSS
  • Frameworks/Libraries: React, Node.js, Express, Django, Spring Boot
  • Databases: PostgreSQL, MongoDB, Redis
  • Tools & Platforms: Git, Docker, AWS, Jenkins, Jira

The order within each category signals your proficiency. Put your strongest skills first. If someone asks you to build something in React tomorrow, could you do it confidently? If yes, it goes at the front. If you'd need to refresh your memory, it goes toward the back or not at all.

Don't list soft skills here. Communication, teamwork, problem-solving—these don't belong in the skills section. They're demonstrated through your accomplishments, not declared in a list.

Some engineers separate their skills into "Proficient" and "Familiar" categories. This can work, but be honest. Proficient means you could start contributing to a codebase using that technology on day one. Familiar means you understand the basics but would need ramp-up time.

Update this section regularly. Technologies move fast. If you haven't used Angular in three years and all your recent work is in React, adjust accordingly. Listing outdated technologies makes you look out of touch.

For specialized roles, tailor this section. Applying for a DevOps position? Emphasize infrastructure tools, CI/CD platforms, and cloud services. Going for a data engineering role? Highlight data processing frameworks, warehousing solutions, and ETL tools.

One more thing: avoid acronyms without context if they're not industry-standard. Everyone knows what API means. Not everyone knows your company's internal tooling abbreviations.


Projects Section (Critical for Engineers)

The projects section separates candidates who build things from candidates who just talk about building things. For hiring managers, this is where they get to see your judgment, creativity, and follow-through.

Each project entry should answer four questions: What did you build? Why did you build it? How did you build it? What was the result?

Start with a clear name and one-sentence description. "TaskFlow - A real-time collaborative task management app for remote teams." Then add the tech stack in parentheses: (React, Node.js, WebSocket, MongoDB).

The description should explain the problem you solved. "Built to address the lack of real-time updates in existing task management tools, especially for distributed teams across time zones." This context matters. It shows you think about user needs, not just technical implementations.

Next, highlight one or two technical challenges you overcame. "Implemented WebSocket connections with automatic reconnection logic to handle spotty connections. Designed a conflict resolution system for simultaneous edits using operational transformation."

Close with results if you have them. "Currently used by 50+ teams across 12 countries. Average session time of 23 minutes indicates high engagement." If the project is open source, mention stars, forks, or contributors. If it's live, include the link.

For engineers early in their careers, aim for three to five substantial projects. One should demonstrate full-stack capability. Another should show you can work with external APIs or third-party services. At least one should involve deploying and hosting a live application.

As you gain professional experience, the projects section can shrink. Senior engineers might include one or two significant side projects or open-source contributions, but the focus shifts to professional work.

Common mistakes to avoid: listing tutorial projects that thousands of others have built, including projects with no working demo or code repository, describing projects so vaguely that it's unclear what you actually built, or forgetting to remove projects from early in your learning journey that no longer represent your skill level.

The best project descriptions tell a story. You identified a problem, made technical decisions, shipped something real, and learned from the experience. That narrative matters more than the complexity of the technology you used.


Common Tech Resume Mistakes

Listing Technologies You Don't Actually Know

You put Kubernetes on your resume because you deployed a container once. The interviewer asks you to explain pod networking, and you freeze. Don't list technologies you can't discuss confidently. Interviewers will probe your claimed skills, and getting caught inflating your experience ends the conversation immediately.

Generic Bullet Points Without Metrics

"Worked on backend services" tells me nothing. "Refactored authentication service to use JWT tokens, reducing average response time from 850ms to 120ms and eliminating 3-4 support tickets per week related to session timeouts" tells me everything. Specificity matters. Numbers prove impact.

Walls of Text

Your resume isn't a novel. Dense paragraphs don't get read. Break information into scannable bullet points. Use consistent formatting. White space is your friend. If a hiring manager can't grasp your experience in under 30 seconds, you've lost them.

Irrelevant Work Experience

Your summer job as a barista doesn't need to be on your tech resume unless you're a recent graduate with limited experience. Once you have technical work experience or substantial projects, cut the non-technical jobs. Every line should reinforce that you're a strong technical candidate.

Outdated Technologies Prominently Displayed

If your resume leads with jQuery and PHP 5.4, it signals you haven't kept your skills current. Move older technologies to the bottom of your skills list or remove them entirely if they're no longer relevant to the roles you're pursuing.

Missing or Broken Links

You list your GitHub, but the profile is empty. Your portfolio link returns a 404. These details matter. They're often the first thing a technical recruiter checks. Before sending your resume anywhere, click every link. Make sure your GitHub has meaningful contributions and your portfolio loads correctly.

Lying or Exaggerating

Claiming you "led" a project when you contributed minor bug fixes. Saying you "built" something when you followed a tutorial. The tech community is small, and people talk. Background checks happen. References get called. Your actual skills will surface during technical interviews. Save everyone time and be honest from the start.

No Customization

Sending the same resume to every company shows you're not serious. Read the job description. Adjust your skills emphasis. Reorder your projects. Highlight the experience that matches what they're looking for. This doesn't mean lying about your background—it means presenting your real experience in the most relevant light.


Tech Resume Examples

Example 1: Entry-Level Software Engineer

Sarah graduated with a CS degree six months ago and has been building projects while job searching. Her resume leads with a strong skills section: Python, JavaScript, React, Node.js, PostgreSQL. Her projects section takes up significant space and includes three substantial builds: a recipe recommendation app using machine learning, a real-time chat application with WebSocket, and an open-source contribution to a popular Python library where she fixed a bug affecting date parsing.

Each project includes the problem solved, technologies used, and a link to the live demo or GitHub repo. Her internship experience from college appears next, with specific bullet points about features she shipped and their impact. Education comes last.

Example 2: Mid-Level Full Stack Developer

Marcus has four years of experience across two companies. His resume opens with contact info and a skills section organized by proficiency. His professional experience section dominates the page, with each role showing clear progression. At his current company, he lists accomplishments like migrating a monolithic application to microservices (reducing deployment time by 80%) and implementing feature flags that increased development velocity by 40%.

His projects section includes one significant side project—a developer tool that's gained 2,000 GitHub stars. He skips his college projects entirely since his professional work is stronger. Education appears at the bottom with just his degree, school, and graduation year.

Example 3: Senior DevOps Engineer

Keisha has eight years of experience and specializes in infrastructure. Her resume emphasizes cloud platforms (AWS, Azure, GCP), infrastructure as code (Terraform, CloudFormation), and container orchestration (Kubernetes, Docker Swarm). Her experience section focuses on large-scale infrastructure work: designing a deployment pipeline that handles 200+ deployments per day with 99.9% success rate, reducing AWS costs by $400K annually through resource optimization, leading a team of four engineers in a cloud migration project.

She includes one open-source contribution—maintaining a popular Terraform module. Her certifications (AWS Solutions Architect, CKA) appear in a dedicated section. She skips the projects section entirely because her professional accomplishments speak for themselves.

The Bottom Line

You now have everything you need to create a resume that actually works. The difference between a resume that gets ignored and one that lands interviews comes down to specificity, honesty, and understanding what hiring managers need to see.

Start with your skills section. Organize your technologies. Be honest about what you know. Then work through your experience and projects, adding metrics and context to every claim. Remove anything that doesn't strengthen your case.

Your resume is never finished. As you learn new technologies, ship new projects, and accumulate more experience, it needs to evolve. Review it quarterly. Update it after completing significant work. Keep it sharp.

The job search is a grind, but a strong resume makes it manageable. Get this document right, and the rest becomes easier.

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Frequently Asked Questions

Should I include my GPA on my tech resume?

Only if you graduated recently (within the past two years) and your GPA is above 3.5. After your first job or two, nobody cares about your GPA. Your work experience and projects carry far more weight. If your GPA is below 3.5, leave it off regardless of when you graduated.

How long should my tech resume be?

One page if you have less than five years of experience. Two pages maximum once you're more senior. Nobody is reading a three-page resume. If you can't distill your experience into two pages, you're either including irrelevant information or you haven't learned to edit ruthlessly. More pages don't equal more impressive.

Do I need a cover letter for tech jobs?

Most tech companies don't require them, and many hiring managers don't read them. Check the job posting. If they ask for one, write it. If they don't mention it, your time is better spent making your resume stronger or working on your portfolio. The exceptions are smaller companies, startups, or roles where communication skills are critical.

Should I list every technology I've ever used?

No. List technologies you can confidently use in a professional setting. If someone asked you to build something with it tomorrow, could you? If you'd need to spend significant time relearning it, leave it off. Your resume should reflect your current capabilities, not a historical record of every tutorial you've completed.

How often should I update my resume?

At minimum, every time you complete a significant project or achieve a measurable result at work. Quarterly reviews work well for most people. Don't wait until you need it to update it—by then you'll have forgotten half the details of what you accomplished. Keep a running document of achievements, metrics, and projects throughout the year. When you need to apply for jobs, you'll have everything ready.