Google-owned platform hosting data-science and machine-learning competitions, many with cash prizes. Free to enter; a strong way to build a portfolio.
Details: Free to enter and useful for a portfolio, but Kaggle is owned by Google and some competitions require agreeing to sponsor terms — read each competition's rules before submitting work.
Build a public showcase profile of your skills and experience, and search other people's profiles — a place to be found by employers and collaborators.
Why I recommend it: Sign-up asks for no payment and no price is listed, but the site has payment tools installed, so paid extras may exist. Only share details you're comfortable making public.
A newsletter for university students and early-career professionals on building a career deliberately: networking with low effort, building a portfolio when you are not an artist, reputation-building as a young professional, early-career growth rules, job hunting after graduation, and working in and around AI. Launched in early 2026. Every issue in the recent archive is free to everyone, and the whole archive is open.
Why I recommend it: Best for the first few years of a career, where the advice gap is widest — the pieces on networking and on building a portfolio without being a designer are the ones to start with. It is one writer's experience rather than researched guidance, so treat it as a practitioner's notes: take the habits, check any claim about hiring against a source that publishes its numbers.
Free guided 'missions' that walk you through building a small, real AI project in under an hour — an assistant, an app or site, a data analysis, a design, an image or video piece, or a research task. Missions are grouped by career (AI for Teaching, AI in Marketing, AI in Sales, Entrepreneurship) and built with partner tools including OpenAI, Google, Figma, Notion, Replit, Vercel, Gamma, Clay, Slack and Lovable. You finish with a working project, and completed projects are shown on your Handshake profile so employers see the work rather than a resume line. Free to get started with a Handshake account.
Why I recommend it: This is the fastest honest answer to 'I have no AI experience on my resume' — an hour gets you something you actually built and can talk about in an interview. Three caveats worth saying out loud: Handshake says free to get started rather than free forever, so check the current terms on the page; the partner tools each have their own free limits, which is where a cost can appear; and a one-hour mission is a starting point, not evidence of depth, so be ready to explain what you would do differently with more time.
Design and prototyping tool used across the industry, with a free Starter plan that covers design files, FigJam whiteboards and slides. Useful for portfolios, pitch decks, wireframes and simple brand assets.
Why I recommend it: Free Starter plan has limits on the number of files and collaborators, and some features (Dev Mode, advanced Figma Make usage) sit on paid seats. Enough for one person building a portfolio or deck without paying.
Google's free step-by-step tutorials for building and publishing a browser extension, from a first "hello world" to using storage, scripting and the side panel.
From the site: All the basics to get started with Chrome extensions
Why I recommend it: A small extension is one of the fastest portfolio projects you can actually finish and show someone.
Free, MIT-licensed Python library and documentation for applying AI to satellite and geospatial data, with tutorials, notebooks, a QGIS plugin and video walkthroughs.
From the site: A Python package for using Artificial Intelligence (AI) with geospatial data
Why I recommend it: A free, well-documented open-source project — a good portfolio path if you want to work in mapping, climate or remote sensing.
The free official community forum for DaVinci Resolve and Blackmagic hardware, where editors and colourists troubleshoot, share workflows and answer beginner questions.
Why I recommend it: If you edit your own video content, search this forum before paying anyone for a fix. Most problems are already answered here.
Portfolio builder made for data professionals: show projects, embed dashboards, add a skills timeline and share one public portfolio link. The free plan covers up to five projects with no card required.
A free four-month, hands-on machine learning engineering course covering Python, regression and classification, XGBoost, deep learning with TensorFlow, Docker, Kubernetes and cloud deployment, with homework, projects and a Slack community. The 2026 cohort started September 14, 2026, and you can still start now.
Why I recommend it: One of the strongest free routes into machine learning work, because you finish with deployed projects, not just notes.
Free monthly AI building challenge from IBM SkillsBuild and BeMyApp: learn the tooling, submit an AI project for judging, and attend the AI Builders Conference on September 16, 2026 with IBM experts and developers. No cost to register or participate.
Details: Challenges like this give you a finished project to point at, which is worth more in interviews than another certificate.
A site for building a digital portfolio that shows your work rather than just describing it, with structure and examples for people whose results are hard to fit on a resume.
Why I recommend it: If your best work does not survive a resume bullet, a portfolio page fixes that. I ask career changers to build one before they apply anywhere.
A free 12-page playbook from Tiffany Teasley (Data Sistah) with six portfolio projects built on real business problems, a free browser-based coding setup, a GitHub README template, a resume rewrite prompt, and the exact referral messages that turn a 15-minute chat into an introduction.
Why I recommend it: I like this one because it refuses to let you hide behind another certificate. Pick one project this week, finish it, then use the referral scripts at the back - that pairing is what moves people from studying to hired.
Tiffany Teasley taught high school math for 20 years before moving into data science and AI. Her site collects free guides, portfolio project ideas, and mentorship for career changers breaking into data and AI without a computer science degree or connections.
Why I recommend it: She is transparent about spending $21,000 on bootcamps that produced no interviews, which is exactly why I trust her advice about proof over certificates.
A collection of articles and guidance for people breaking into or advancing in data-focused careers, covering portfolio building, interviews, and skill development.
Why I recommend it: Data roles are a common pivot target, but the path is not always obvious — this site collects practical, experience-backed guidance for making the jump.
India-based 4-week open-source engineering internship where you solve real GitHub issues, earn MSME-recognized certificates, and build verified proof of work.
From the site: India's 4-week open-source engineering internship. Solve real GitHub issues, earn MSME-recognized certificates, and build verified proof of work.
Why I recommend it: If you need real, verifiable engineering experience on a resume, shipping merged pull requests beats another certificate. Great for students and career switchers building a public track record.
Certificate covering research, wireframing, prototyping in Figma, and building three portfolio projects.
Why I recommend it: In UX the portfolio is the resume. The reason to take this one is the three case studies you finish with, so treat them as real work, not homework.
Two pitch decks compared side by side: Airbnb's 10-slide deck that raised $600K, and Fyre Festival's deck, whose company later faced fraud charges, plus sample GitHub work to use as a model for your own portfolio.
In plain terms: This guide compares successful and failed pitch decks from Airbnb and Fyre Festival alongside real GitHub profiles. You can use these examples to learn how to present business ideas clearly and structure your own technical portfolio.
Why I recommend it: One idea per slide. Problem, solution, evidence. Decoration never closed a round.
Step-by-step toolkit for curating a recruiter-ready GitHub: profile README, three pinned public projects, clean repo naming, and the six-section README map every project should follow. Includes a quality checklist.
In plain terms: This guide shows you how to organize and clean up your GitHub profile for job applications. You can follow the quality checklist and project outline to present your best work clearly to recruiters.
Why I recommend it: Three well-documented projects beat ten messy ones. Test your profile in an incognito window.
A step-by-step personal account of self-teaching, portfolio building, and applying until landing a first developer role without a computer science degree.
Why I recommend it: Copy the process, not the timeline. Everyone's runway is different, and comparing yours to a blog post is a fast way to quit.
Short, structured remote projects with real companies that give you portfolio work and a reference.
In plain terms: This website offers short, remote projects with real companies across fields like marketing, finance, and data analysis. You can apply to complete structured work, build samples for your portfolio, and gain practical experience.
From the site: Gain professional experience through externship opportunities with companies like Meta, PwC, Pfizer, National Geographic, Snapchat, Cargill and HP.
Why I recommend it: No experience is the hardest wall to climb. An externship gives you something concrete to put on the resume.