Are you an engineer looking to make extra income using your engineering skills?
Engineers turn to side hustles to earn more and explore new opportunities. This article covers 25 engineering side hustles that let you use your skills, work flexible hours, and boost your income.
These remote-friendly options fit around your main job, helping you make money without losing your work-life balance.
Top Online Platforms to Launch a Side Hustle
| Provider | Type of Website | Earning Potential | |
|---|---|---|---|
 | Freelance Platform | $5-$10,000 | Visit Fiverr |
 | Job Board | Up to $25/hour | Visit FlexJobs |
 | Freelance Platform | $5-$100/hour | Visit Upwork |
25 Engineering Side Hustles
1. Freelance Engineering Work
Freelancing is a smart way for engineers to earn extra income. Many companies need engineering solutions but don’t want to hire full-time staff. This is where you come in. You can help with design reviews, prototyping, or software development.
To get started, spread the word in your field. Let people know you’re open to freelance engineering work. Sign up on freelance platforms like Fiverr and Upwork to find opportunities. Build a strong portfolio to showcase your past work and technical skills.
Freelance work pays more per hour than regular jobs since it skips benefits like health insurance. Rates range from $30 to $130+ per hour. You pick when and where to work, making it a flexible side hustle.
Make sure you have the right licenses and certifications for your work. Check local laws to stay compliant. If unsure, talk to a legal expert. Following rules will protect you and your clients while building a reliable engineering side hustle.
Combine freelancing with proven passive income ideas to boost your earnings.
2. AutoCAD and Engineering Modeling Work
If you know AutoCAD or other modeling software, this is a great way to earn extra income using your engineering background.
You can use your AutoCAD skills to make extra income. Many businesses need engineering modeling work but don’t hire full-time designers. This work pays between $25 and $150+ per hour. Most projects can be done from home. You decide when and how much you work.
To get started, create a portfolio with your past work. Show it to potential clients on various platforms. Research industry standards and determine your hourly rates. Network with your contacts and explore online platforms for freelance opportunities.
Consider the cost of software licenses when setting your rates. If you use work software, check your employer’s rules. Stay updated on industry regulations and legal requirements. Following these steps will help you avoid issues and keep your side hustle running smoothly.
3. Consulting Services
As an engineer, your skills are in high demand. Many businesses need help solving problems. You can offer consulting services to check product safety, improve engineering solutions, or help teams work more efficiently. Companies will pay well for your technical knowledge.
Consulting is a great way to earn extra income. This flexible side hustle pays well, with rates between $75 to $200 per hour. You can set your hours and work from anywhere.
To get started, utilize online platforms or leverage your existing contacts to find potential clients. Consider gaining experience by working part-time for an established consulting firm. Continuously update your knowledge and skills to provide valuable consulting services.
4. Coaching
Coaching is a rewarding side hustle if you enjoy helping others. You can guide people in career advice, personal development, or engineering skills. Many engineers possess knowledge that others are willing to pay for.
You can choose your hours and work with clients from anywhere. Coaching needs little upfront cost, making it an easy side hustle to start. As you gain experience and earn trust, you can charge more and grow your client list.
To begin, build an online presence to attract clients and show your expertise. List your coaching services in relevant directories to increase visibility. Inform your network about your coaching services and seek referrals.
You can earn $130 or more per hour as an engineering coach.
5. Freelance Technical Writing
Many companies need writers who can explain technical concepts and engineering principles in simple terms. If you enjoy writing and have engineering skills, freelance technical writing could be a great side hustle.
You can write user manuals, corporate reports, blog posts, business plans, case studies, and white papers. Engineers possess the right skills to break down complex ideas into clear steps. Technical writing is in high demand, and it pays well. Most writers earn $40 to $80 per hour or $0.15 to $1.50 per word.
Check freelance sites like Fiverr and FlexJobs for technical writing jobs. Gather your best work to show what you can do. Reach out to your professional network for potential writing opportunities. Browse technical writing jobs on various job boards or approach clients directly.
6. Prompt Engineering or AI Development
Prompt engineering is an exciting field that allows engineers to work with artificial intelligence (AI) systems.
Prompt engineering involves creating and refining prompts that guide AI models to produce desired outputs. It’s like giving clear instructions to an AI system to get the results you want.
As AI technology advances, the demand for prompt engineers is rapidly increasing. You can often work on prompt engineering projects at your own pace and convenience.
This side hustle helps you build useful skills in AI and machine learning. Your earnings in prompt engineering depend on your experience and how complex the projects are. The more skilled you are, the more you can make.
7. Ethical Hacking / Penetration Testing
Ethical hacking, or penetration testing, means testing a company’s security. Your job is to hack into a website or network—legally—to find weak spots before real hackers do. Businesses pay for this service to keep their security systems strong and protect against cyber threats.
Ethical hackers make $50 to $65 per hour. This side hustle is a unique challenge and a rewarding side hustle for those who love cybersecurity and testing systems for weaknesses. You can often perform penetration testing remotely.
Find ethical hacking gigs on freelance platforms and bug bounty programs. Join open-source projects to build experience and prove your skills. Connect with other ethical hackers and cybersecurity experts in online communities.
Networking helps you find job opportunities and stay updated on the latest in security systems and ethical hacking.
8. Website Testing
Website testing is a flexible side hustle where you check websites for bugs, errors, and usability issues. You explore different sites, test features, and report problems.
Companies need feedback to improve their sites. No special skills are needed—just attention to detail. It’s a low-stress job that pays for your technical knowledge.
Website testing is generally straightforward and doesn’t require extensive technical expertise. You can complete website testing tasks from anywhere with an internet connection. The flexibility of website testing makes it a suitable option if you have other commitments.
Find website testing jobs on platforms like UserTesting and TryMyUI (rebranded to TryMata) to get started.
9. App Design and Development
If you know how to code, you can create and build mobile apps. This side hustle lets you use your creativity and earn extra income. A successful app can bring in passive income, making it a profitable venture for software engineers.
Successful apps can make good money from sales, in-app purchases, or ad revenue. Mobile app development lets you use your creativity to build something new and valuable. It’s a great side hustle for engineers. You can enhance your programming and design skills by developing software applications.
Join Apple and Google’ developer programs to get tools and resources. Learn programming languages like Swift for iOS or Java for Android.
Begin with a simple app idea. As you gain experience, take on bigger projects. Step by step, improve your skills in mobile app development.
Explore our guide on how to make money from your phone to enjoy earning on the go.
10. 3D Printing
With 3D printing, you can design and make custom items to sell online. It’s a fun, creative outlet, and a flexible side hustle. Turn ideas into real products and earn extra cash while working from home.
Think about what excites you—toys, jewelry, home décor, or something else—and choose a niche you’ll enjoy. Use design software to create unique, eye-catching products that will attract buyers. Sell your items on Amazon, eBay, or Etsy, or start your online store to reach more customers.
Invest in a good 3D printer, which can cost between $1,500 and $2,500, and factor in the cost of materials. Research the market to find out what products are in demand so you can create items that sell well. Share your 3D printing process on social media or make tutorials to attract more customers and build a loyal audience.
The earning potential varies widely. Some people earn a little, while others make a lot depending on what they sell and how well they market their products.
11. Part-time Repairman
If you enjoy fixing things, you can make extra money as a part-time repairman. Offer to fix malfunctioning appliances, restore old machines or cars, or repair/reformat computers.
You can offer different engineering services and make extra money depending on your field of expertise as an engineer.
Check out sites like Craigslist and TaskRabbit for clients, or join a network like HomeAdvisor.
12. Create Online Courses
If you have a passion for teaching, you can share your engineering knowledge and skills with others by creating online courses.
Decide on the topic you want to teach. It could be electronics, programming, robotics, CAD designing, or even something basic like math. It could also be a passion of yours, like playing guitar or fishing.
Invest in a decent Lavalier microphone and a video camera. You can also use a webcam or your smartphone as a recording device. Upload your course materials to educational platforms like Udemy, Brightstorm, and Skillshare.
If you’re not comfortable on camera, use infographics, PowerPoint slides, or screen recording software. This way, you can teach by sharing your screen instead of speaking directly to the camera. What’s important is to convey the information to your audience.
For tips and insights, check out how to make money online hassle-free.
13. Teach Online
You can teach kids, high schoolers, and college students online. As long as you know the topic, you can make money with your knowledge. Teach subjects like math, algebra, physics, or engineering majors.
Join sites like Preply, Tutorme, or Tutors.com, and list yourself as a tutor. Or you can just search on Google “How to be a private tutor.”
14. Part-time Adjunct Engineering Professor
If you have some time to spare after your job, you can teach at a local university. Check local colleges or universities to see if they need a part-time adjunct engineering professor. If the class schedule fits around your main job, it’s a great side hustle.
Teach engineering students while keeping your hours and earning extra cash. Alternatively, just search “apply adjunct engineering professor (country/region)” on Google.
15. Part-time CAD Specialist
Since you already have CAD skills, you can offer them to someone else who needs them. You can offer to help design someone’s garage or kitchen, design and install a power-efficient heating/cooling system, develop an app for school projects, and much more.
Post an ad on Craigslist and be prepared to create some name cards. When you finish a job, hand your client a business card and ask for referrals.
You can also find side jobs on job boards like Indeed, ZipRecruiter, Upwork, and SimplyHired. The more you network, the more work you’ll get.
16. Do Minor Engineering Jobs Online
Another great side hustle for engineers is to help other people who need your skills and expertise. You can find part-time engineering jobs from popular online job portals. You will either be paid per hour or project. The amount you’ll earn varies from one client to another.
17. Be a Freelancer
You can make money with your skills outside of your engineering profession.
There is a high demand for freelancers who provide services like article writing, video/graphic editing, web designing, programming, social media marketing, transcribing, logo design, and data entry.
Pick an online job that fits your skills, abilities, and knowledge. Most freelancers get paid per month, but some clients will also pay you per hour or project. List yourself as a freelancer on online job portals.
18. Sell Your Engineering Notes
If you have well-organized notes from your engineering classes, you can sell your notes online. Engineering students always look for clear, helpful study guides.
Post your notes on Craigslist, job boards, or various platforms where students search for resources. This low-stress job can bring in extra cash with little effort.
19. Technical Sales
Many engineering companies need technically-minded people for their sales teams. As an engineer, you’d have the in-depth knowledge to understand the products and explain them clearly to potential customers.
This is a valuable asset as you can bridge the gap between complex technical details and customer needs.
20. SEO Consultant for Engineering Companies
Mix your engineering skills with Search Engine Optimization (SEO), and you get a unique side hustle. This high-demand skill makes you valuable. You’ll always find job opportunities since businesses need SEO experts with technical knowledge to improve their online presence.
If you don’t have SEO knowledge, or you need credentials, start by attending a free masterclass taught by SEO industry experts. If you have SEO knowledge, you can search for jobs on engineering job portal sites or list yourself as a freelancer.
21. Sell Your Craft
If you like working with your hands and enjoy making things, selling crafts is a great way to earn cash. You can create and sell knitted scarves, beanies, DIY home décor, or jewelry. Many engineers turn their skills into profitable ventures by designing unique items.
List your items for sale on Etsy or eBay to reach more buyers. You can also sell your crafts at local craft fairs or farmer’s markets. These places attract customers looking for handmade goods and unique items.
22. Rent Your Stuff
You can earn extra money by renting out things you already own. This could be your home, car, bike, sporting gear, camera, or jewelry. Many people look for short-term rentals, and you can turn your unused items into cash.
For example, rent your spare bedroom on Airbnb or list your car on Turo. If you own a bike you rarely use, rent it out on Spinlister. You can also rent cameras, sporting gear, or jewelry on Fat Llama.
23. Make Money With Your Car
If you own a car, you can use it to make money in different ways. It’s a flexible side hustle that fits around your current job and daily routine.
Ride Sharing: Pick up passengers while commuting to and from work. This is a simple way to earn money and meet new people. Sign up with Uber or Lyft to start driving.
Driving Instructor: If you have a clean driving record and enjoy teaching, consider becoming a driving instructor. You can work for a driving school or start your own business.
Moving Advertisement: Turn your car into a moving billboard. Companies will pay to place ads on your vehicle. Sign up with Wrapify or Carvertise to get started.
24. Solve a Problem
If you like solving problems, you can build a platform that connects people with solutions. This could be a website that finds the best car insurance deals or an app that helps parents find a babysitter.
First, find a common problem people face. Then, create a simple solution. Finally, build a website, app, or service to connect people to that solution.
To make it work, you need digital marketing skills. Learn social media marketing, and email marketing to reach more people. A strong online presence will help grow your side hustle into a profitable venture.
25. Self-Publish Books
If you’re skilled in a specific area of engineering, you can self-publish a book or eBook. It’s a simple way to share your knowledge, help others, and earn extra money. Many engineers turn this into a profitable side hustle.
First, pick a topic you know well—one people would pay to learn. Then, write your book or eBook. Keep it clear and easy to read. Once it’s done, format it and design a simple but eye-catching cover.
Next, publish it yourself. Use platforms like Kindle Direct Publishing, Lulu, Smashwords, or Barnes & Noble. These sites make it easy to sell your book online. With the right topic and marketing, your book can bring in extra income for years.
Why Do You Need a Website for Engineering Side Hustles?
A professional website is your digital showcase, highlighting your engineering skills and portfolio to potential clients.
It’s a 24/7 marketing tool for side hustles like freelancing, consulting, or teaching, attracting clients even while you’re focused on your main job. A well-designed website builds trust and acts as a central hub to market your services.
But a website is only as good as its performance—that’s where reliable web hosting comes in. Good web hosting ensures your site stays fast and responsive, especially when displaying technical details, CAD files, or simulation results.
Hostinger
Conclusion
There are many engineering side hustles you can try.
With a little effort and creativity, you can find one that fits your skills and schedule. Whether you want to build technical skills, earn extra money, or grow your career, there’s an option for you.
Learning how to make more money as an engineer starts with taking action. Who knows? Your side hustle might even turn into a well-paying full-time job.
A personal website can be a powerful asset for engineers looking to monetize their skills or launch a side business. Below, we’ve rounded up the best website builders to help you get started quickly and professionally.
Next Steps: What Now?
- Choose Your Best Side Hustle: Whether it’s freelance engineering work, consulting services, or AI development, focus on a hustle you’ll enjoy.
- Set Up Your Online Presence: Choose the best website builders for portfolios to showcase your work and technical skills.
- Choose Freelancer Hosting: Choosing the right hosting for your website ensures your website runs fast and secure, improving user experience.
- Start Small & Build Momentum: Begin with small projects to test your skills and gain confidence. As you gain experience, increase your rates and expand your client base.
- Plan for Long-Term Growth: Consider scaling your side hustle into a full-time business by automating tasks, outsourcing work, or creating recurring income streams.
Further Reading & Useful Resources
- How to Make Money With Affiliate Marketing
- How to Start a WordPress Blog
- Most Profitable Blog Niches List
- How to Make Money on Social Media: From Likes to Earnings
- How to Make Passive Income From Blogging
- How To Make Money with ChatGPT
- E-commerce Products to Sell Online
- How to Make a Dropshipping Website
- Best Web Hosting for Developers
- How to Make a Website an App for iOS and Android
- Make Money With Google Adsense Without A Website
