Browse the latest freelance software engineer jobs from companies and clients hiring across the globe. This page features project-based, independent contractor, and gig opportunities for developers who prefer the flexibility and variety of freelance work.
This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates.
At Mindrift , innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI.
What we do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe.
About the Role
GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you’ll have the opportunity to collaborate on these projects.
Although every project is unique, you might typically:
• Code generation and code review
• Prompt evaluation and complex data annotation
• Training and evaluation of large language models
• Benchmarking and agent-based code execution in sandboxed environments
• Working across multiple programming languages (Python, JavaScript/TypeScript, Rust, SQL, etc.)
• Adapting guidelines for new domains and use cases
• Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects
How to get started
Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you’ll help shape the future of AI while ensuring technology benefits everyone.
• You have a Bachelors in Software Development, Computer Science, or other related fields.
• You have at least 3 years of professional experience with Ruby, hands-on experience with Ruby testing frameworks (RSpec, Minitest, Capybara) and automation tools
• Experience using, integrating, or tutoring others with AI/ML or LLM-powered testing/coding solutions in Ruby projects.
• Code review experience is a must.
• Hackathon or competitive coding experience is a plus.
• Your level of English is advanced (C1) or above .
• You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines.
• Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge.
Why this freelance opportunity might be a great fit for you?
• Get paid for your expertise, with rates that can go up to $50/hour depending on your skills, experience, and project needs.
• Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments.
• Work on advanced AI projects and gain valuable experience that enhances your portfolio.
• Influence how future AI models understand and communicate in your field of expertise.
Insights drawn from the latest openings on this page so you can compare employers, locations, and pay before applying.
Top Companies Hiring
Mindrift2 roles
Prolific1 role
Ye'O'Geeks1 role
Outlier AI1 role
swan.io1 role
Twine1 role
Top Locations
New Jersey, US2 roles
New York, US1 role
Remote1 role
Maryland, US1 role
North Carolina, US1 role
Virginia, US1 role
13% of these openings can be done remotely.
Salary Range Overview
Across 8 listings, advertised pay ranges from USD 83k to USD 165k.
Typical band: USD 83k – 165k.
Figures reflect employer-disclosed salaries on current openings and may vary by location, experience, and company stage.
Employment Types
Contractor3 roles
Full-Time2 roles
Internship1 role
Part-Time1 role
Get Ready for a freelance software engineer Interview
Free Skillora tools tailored to this role: practise the exact questions you'll face, benchmark salary expectations, and tune your resume before you apply.
MindriftNew York, New York, USFull-TimePosted Sep 21, 2026
This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. At Mindrift , innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What we do The Mindrift platform connects special…
#2Game Development / Environment Artist - Washington DC, US (Freelance - Remote)
ProlificRemote
Game Development / Environment Artist - AI Training (Freelance - Remote) About Prolific Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study partici…
Overview Design your full-time freelance career as a top freelance developer with Toptal. Freelance work is defining developer careers in exciting new ways. If you’re passionate about finding rapid career growth potential working with leading Fortune 500 brands and innovative Silicon Valley startups, Toptal could be a …
MindriftCary, North Carolina, USInternshipPosted Sep 27, 2026
At Mindrift , innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise f…
Outlier AIHalifax, Virginia, USFull-TimePosted Oct 6, 2026
Salary: $90,000 - 130,000 per year Requirements: • We bring 2+ years of experience in backend engineering, AI automation, or complex systems integration. • We can design and maintain production-ready software with clear modular boundaries, such as separate services for parsing, logic handling, and reporting. • We have …
swan.ioPhiladelphia, Pennsylvania, USContractorUSD 83k–165k / yearPosted Oct 1, 2026
About Swan is Europe’s embedded banking specialist. We empower software companies to embed banking features like accounts, cards, and payments directly into their products, under their own brand. Swan processes over €1.5 billion in monthly transactions for more than 150 companies—like Pennylane, Indy, Agicap, Libeo, an…
TwineJersey City, New Jersey, USContractorPosted Sep 21, 2026
Software Engineer is needed in Jersey City, United States. Client: I8IS INC. Location: Jersey City, NJ, us Contract: Contract Job Description As a Senior Software Engineer, you will work with a highly talented team delivering next-generation customer self-service solutions using Genesys technologies. This role involves…
#8Full Stack Developer - Federal Aviation Administration
Tetra TechAtlantic City, New Jersey, USPart-TimePosted Sep 24, 2026
Job Description LS Technologies is seeking a highly experienced Senior Full-Stack Software Engineer to support the Federal Aviation Administration (FAA) Enterprise Information Display System (E-IDS). The successful candidate will design, develop, test, deploy, and maintain secure, scalable enterprise applications using…
Browse the latest freelance software engineer jobs from companies and clients hiring across the globe. This page features project-based, independent contractor, and gig opportunities for developers who prefer the flexibility and variety of freelance work.
Freelance Software Engineers work on a wide range of projects including web development, mobile apps, API integrations, cloud migrations, and custom software solutions. Clients are seeking engineers with strong skills in JavaScript, Python, React, Node.js, Java, or other modern technologies, along with the ability to work independently and deliver high-quality code on time.
Freelance roles are ideal for professionals who value flexible schedules, diverse project experience, higher hourly rates, and the freedom to choose their own clients and work arrangements. Many freelancers build long-term relationships with clients or transition into consulting roles.
Our curated listings include remote and global freelance opportunities across North America, Europe, Asia-Pacific, and other markets. Projects range from short-term sprints to multi-month engagements with competitive compensation.
Each job posting includes project scope, required skills, estimated duration, and application details to help you quickly find freelance software engineering opportunities that match your expertise.
Found a role you like? Practice with Skillora's AI-powered mock interviews tailored to the specific job you're applying for. Get real-time feedback and improve your chances of landing the offer.