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.
About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents.
Our projects focus on teaching these systems how to design, coordinate, and optimize complex, real-world architectural workflows. Whether you are a passionate orchestration guru or experienced software developer — we want you to help us train the world's most advanced generative systems.
Ideal
Qualifications ~2+ years of experience in backend engineering, AI automation, or complex systems integration. ~ Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting). ~ Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. ~ Practical experience building for live, non-mocked environments and handling multi-turn system interactions. ~ Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors. Nice to have Expertise building multi-stage coordination tasks where data acquisition leads to reasoned output. Hands-on experience integrating agents with live tools such as Supabase, Gmail, and various APIs to solve real-world problems.
High level of comfort implementing persistent state and session discovery using MEMORY.md to track agent progress.
Experience identifying subtle failures like privacy leaks, authority escalation, or indirect prompt injections.
Insights drawn from the latest openings on this page so you can compare employers, locations, and pay before applying.
Top Companies Hiring
Mind Rift3 roles
Outlier AI1 role
Toptal1 role
Eternal HR Services1 role
Mindrift1 role
Niche1 role
Top Locations
New York, US7 roles
District of Columbia, US1 role
Remote1 role
North Carolina, US1 role
10% of these openings can be done remotely.
Salary Range Overview
Across 10 listings, advertised pay ranges from USD 50k to USD 300k.
Typical band: USD 50k – 300k.
Figures reflect employer-disclosed salaries on current openings and may vary by location, experience, and company stage.
Employment Types
Contractor5 roles
Part-Time4 roles
Full-Time1 role
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Outlier AIWashington, District of Columbia, USPart-TimePosted May 14, 2026
About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. O…
#2Remote Front End Developer Job for Two-Sided Marketplace (Part-time)
ToptalRemotePart-TimeUSD 50k–300k / yearPosted Jun 8, 2026
We are a two-sided marketplace looking to hire developers to speed up our product launch. We need a front-end web developer who will combine the art of design with the art of programming. This hire will translate UI/UX design wireframes to code and build visual elements of the application. Design your lifestyle as a fu…
Eternal HR ServicesNew York, New York, USPart-TimePosted May 31, 2026
Eternal Hr Services is looking for a part-time freelance professional to develop and deploy RPA bots using UiPath and Automation Anywhere. Responsibilities include analyzing business processes, debugging issues, and collaborating with stakeholders for requirements. Ideal candidates are any graduates with an interest in…
#4Freelance Software Developer (Python-Rust) / AI Trainer
Mind RiftBrooklyn, New York, USContractor
AtMindrift, 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 ex…
Mind RiftNew York, New York, USContractorPosted Jun 8, 2026
Freelance Software Developer (Ruby) / Quality Assurance (AI Trainer) 4 days ago Be among the first 25 applicants This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please provide your resume in English and specify your proficiency level. …
MindriftNew York, New York, USPart-TimePosted Jun 1, 2026
Mindrift is looking for highly skilled Python Data Scraping Engineers to join the Tendem project and drive specialized data scraping workflows within our hybrid AI + human system. In this role, as an AI Pilot - that's how we refer to this role at Mindrift - you'll collaborate with Tendem Agents that handle repetitive t…
NicheNew York, New York, USContractorPosted Jun 4, 2026
Remote Freelance Django / Fullstack Developer at Niche, Inc.Startup company seeks freelance Python / Django developer for putting finishing touches on our product.We are practically in our eleventh hour, and need additional help to get ready and appropriately scalable for primetime.Ongoing maintenance will be needed as…
Mind RiftNew York, New York, USContractorPosted Jun 5, 2026
Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project‑based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project‑based as an independent freelance contributor and does not cre…
GaladrimNorth Carolina, USFull-TimePosted Jun 5, 2026
Freelance Engineer Opportunity Our technical team, composed of more than 90 engineers from top schools, is dedicated to designing, developing, and evolving custom digital products: web/mobile applications, business platforms, AI solutions. In a context of strong growth (+50% per year since its creation), Galadrim is st…
Framework VenturesNew York, New York, USContractorPosted Jun 5, 2026
Overview We’re building the first interactive MVP where users can connect a wallet, vote, and participate in the story world, gamifying the filmmaking experience. Responsibilities You’ll help us: Implement wallet connection (MetaMask / WalletConnect) Set up Snapshot or a similar off-chain governance tool for user votin…
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.
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