Backend Developer - AI Trainer

Role Overview anyone-ai is looking for a Backend Developer - AI Trainer based in the United Kingdom. This position centers on building and refining backend systems that help train and improve AI models for real-world use. The work supports a range of projects where artificial intelligence plays a central role. What You Will Do Develop and maintain backend co…

Anyone AI is looking for Backend Developers based in the UK to contribute to projects with a prominent AI research lab. This remote, part-time position centers on expert evaluation and project-based work. Role overview Backend Developers in this role will create and assess realistic software engineering tasks. The focus is on bug fixes, new features, refactoring, and generating tests. Contributors will design intricate coding scenarios and review submissions to maintain quality standards. Responsibilities Design and implement multi-file coding tasks, including bug fixes, feature development, refactoring, and testing. Draft clear specifications and reference implementations in natural language. Develop and improve unit and integration test suites. Evaluate tasks created by peers for accuracy, clarity, and feasibility. Identify edge cases, ambiguities, and possible failure modes. Ensure alignment between specifications, code, and expected outputs. Requirements Exceptional written English skills. 3 to 7 years of professional experience in software engineering. Strong skills in Python and JavaScript or TypeScript; experience with Java, C#, or Go is a plus. Background in backend or full-stack development in production environments. Proficiency with testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testing. Ability to debug and work within large, multi-file codebases. Experience with code reviews, refactoring, and production migrations. Expected outcomes Deliver high-quality, production-ready code and documentation. This is a remote, project-based opportunity for experienced backend engineers interested in shaping real-world software engineering challenges for AI research.

This freelance, remote role centers on developing and refining automation workflows for the Tendem project, using n8n in a hybrid AI and human environment. Based in Glasgow, Scotland (or working remotely), the position is open to professionals skilled in no-code automation, workflow design, and business system optimization. Role overview As an AI Pilot, collaboration is key. You will work alongside Tendem Agents who handle repetitive operational tasks. The focus is on ensuring that automation workflows run efficiently, with a structured approach and a strong eye for quality and reliability. What you will do Design, build, and assess advanced workflows in self-hosted n8n environments. Architect integrations between multiple systems to create scalable automation pipelines. Develop and enhance AI-driven workflows for tasks such as content generation and data enrichment. Set up and maintain automation for lead generation, outreach, and data processing. Implement and oversee web scraping workflows to ensure consistent data extraction and processing. Optimize workflow execution, including node sequencing and error handling, to minimize failures and delays. Compensation Contributors may earn up to $60 per hour, depending on experience and the nature of project contributions. Actual compensation varies by project scope and required expertise.

Mindrift connects specialists with AI-driven projects from leading technology innovators. The platform aims to unlock the potential of Generative AI by bringing together real-world expertise from across the globe. Role overview This part-time, remote contract is for a Freelance Integration Developer (API Specialist) working on the Tendem project (https://tendem.ai/). Candidates may be based in Glasgow, Scotland, or elsewhere in the United Kingdom. The role centers on building smooth integrations in a hybrid environment where AI and human agents work together to manage business processes. What you will do Design and assess integrations between business systems such as CRMs, ad platforms, and email tools. Develop and refine workflows using APIs, webhooks, and both real-time and batch data pipelines. Connect and synchronize databases across platforms like Airtable, Google Sheets, Notion, and others. Maintain reliable, real-time data transfer and consistency across multiple systems and services. Troubleshoot data flow, address latency, and resolve failures as they occur. Support the integration of automated communication systems, including messaging, outreach, or calling workflows. Who succeeds in this role This contract fits professionals with practical experience in APIs, webhooks, and multi-system data pipelines. Structured thinking, attention to quality assurance, and the ability to collaborate with both human and AI team members are important for delivering stable integrations. Compensation Freelancers can earn up to $60 per hour, depending on experience and pace of contribution. Compensation may vary by project based on scope and complexity.

Anyone AI is on the lookout for talented Full-Stack Developers to contribute to an exciting project alongside a prestigious AI research lab.Qualifications:Exceptional written and spoken English proficiency3 to 7 years of extensive experience in software engineeringAdvanced skills in Python and JavaScript/TypeScript; familiarity with Java, C#, or Go is a plusHands-on experience in backend or full-stack development within production environmentsProficient in testing frameworks such as pytest, Jest, JUnit, xUnit, and Go testingDemonstrated ability to debug and work with complex, multi-file codebasesExperience in code reviews, refactoring, and migration processesEngagement: This is a part-time, project-oriented consulting roleWork Type: Fully RemoteAs a contributor, you will create and assess realistic software engineering tasks that encompass bug fixing, feature development, code refactoring, migrations, and test generation. Your work will entail crafting intricate coding challenges and evaluating peer submissions for quality assurance.This role is consultant-based, with payment structured per project. Hourly rates are estimates based on expected completion times. Consultants have the flexibility to manage their schedules, utilize their own tools, and may work with other clients as long as it complies with their policies.Responsibilities:Contributors will:Design and execute multi-file coding tasks including bug fixes, feature enhancements, refactoring, and testingDraft clear specifications and reference implementations in natural languageDevelop and enhance unit and integration test suitesAssess peer-generated tasks for accuracy, clarity, and realismSpot edge cases, ambiguities, and potential failure modesEnsure consistency between specifications, code, and intended outputsExpected Outcomes:High-quality, realistic software engineering tasks that are ready for implementation.

We invite you to submit your CV in English and specify your proficiency level in English.Mindrift bridges the gap between specialists and project-based AI opportunities with leading tech companies, concentrating on the testing, evaluation, and enhancement of AI systems. Please note that participation is on a project basis rather than permanent employment.Opportunity OverviewEach project presents unique challenges, and contributors may:Craft original computational statistics problems that reflect genuine mathematical research workflows;Develop problems requiring Python programming solutions utilizing libraries such as Numpy, SciPy, and Sympy;Ensure challenges are computationally intensive and cannot be solved manually in a reasonable timeframe (days or weeks);Create complex problems that involve non-trivial reasoning in fields like number theory, combinatorics, graph theory, and numerical analysis;Base problems on authentic research challenges or practical applications in mathematical practice;Verify solutions through Python with standard mathematical libraries;Clearly document problem statements and provide verified correct answers.Candidate ProfileThis role is ideally suited for statistics professionals proficient in Python who are open to part-time, non-permanent projects. We prefer candidates who possess:A degree in Statistics or related disciplines;Python skills for numerical validation. Proficiency in MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, or equivalent programming languages is acceptable;A minimum of 2 years of professional experience, including applied, research, or teaching experience;Excellent written English skills (C1+);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are advantageous.Workflow ProcessApply → Pass qualifications → Join a project → Complete tasks → Get compensatedProject CommitmentFor this project, tasks are anticipated to require approximately 10–20 hours per week during active phases, contingent upon project needs. This is an estimate and not a guaranteed workload while the project is active.CompensationContributors can earn up to $43 per hour, depending on their expertise and contribution pace. Compensation varies by project based on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their specific requirements.

Please submit your CV in English and indicate your level of English proficiency.Mindrift bridges the gap between talented specialists and exciting project-based AI opportunities with leading technology firms, focusing on the testing, evaluation, and enhancement of AI systems. Note that participation is project-based and does not lead to permanent employment.What This Role Entails:While each project has its unique objectives, contributors will typically be involved in:Designing innovative computational physics problems that replicate authentic physics research workflows;Creating complex problems requiring Python programming (utilizing libraries such as Numpy, SciPy, and Sympy);Ensuring that problems are computationally intensive, necessitating resolution beyond manual capabilities within reasonable timeframes (spanning days to weeks);Formulating problems that demand intricate reasoning across areas such as mechanics, electromagnetism, thermodynamics, and quantum mechanics;Grounding problems in genuine research challenges or practical applications within the field of physics;Validating solutions through Python utilizing standard physics simulation libraries;Clearly documenting problem statements and providing verified correct answers.Desired Qualifications:This opportunity is ideally suited for optical engineers with a proficiency in Python who are seeking part-time, non-permanent projects. Preferred candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or related disciplines;Proficiency in Python for numerical validation. Experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any relevant programming language is also acceptable;A minimum of 2 years of professional experience, including applicable applied, research, or teaching experience;Familiarity with numerical simulation methods;The capability to design problems that accurately reflect real physics research workflows;Creative problem-solving skills across various physics domains;Proficiency in physics modeling and approximation techniques;Strong written English skills (C1+ level).Application Process:Apply → Pass qualification(s) → Join a project → Complete tasks → Get paidProject Time Expectations:Tasks are estimated to require approximately 10–20 hours per week during active phases, depending on project requirements. This estimate is not a guaranteed workload and applies only while the project is active.Compensation:Contributors can earn up to $35 per hour, contingent on their level of expertise and pace of contribution. Note that compensation may vary across projects based on their scope, complexity, and required expertise.

AI Trainer – PsychologistsAbout ProlificProlific is at the forefront of the AI revolution, dedicated to creating the largest repository of high-quality human data globally.With over 35,000 AI developers, researchers, and organizations leveraging Prolific to collect data from diverse paid study participants, we are committed to facilitating innovative research across various fields.The RoleWe are seeking qualified individuals with a background in Psychology to join us as self-employed AI Trainers. In this exciting role, you will assist in training and evaluating state-of-the-art AI models from leading AI laboratories. If you possess the required expertise, we will send you a brief 10- to 15-minute assessment to evaluate your skills and suitability for AI-related tasks. Successful candidates will be invited to join Prolific as Domain Expert participants, earning compensation for their contributions to AI development.Researchers often offer rates up to £50 per hour, depending on task length. You should be ready to complete paid tasks requiring an hour of uninterrupted work, although many tasks are shorter in duration.What You Will Be DoingAs an AI Trainer, your responsibilities will include: - Completing AI training tasks such as analyzing, editing, and composing psychology-related content. - Evaluating the performance of AI systems concerning psychology, behavioral science, and human cognition prompts. - Enhancing advanced AI models using your knowledge of psychological theories and human behavior.What You Bring

To apply, please ensure your CV is submitted in English and includes a link to your portfolio. Applications without a portfolio link will not be reviewed.Mindrift bridges skilled individuals with project-based AI roles designed for prominent tech firms, concentrating on the evaluation, testing, and enhancement of AI systems. This is a project-based opportunity rather than permanent employment.Role OverviewProjects may involve various tasks, including but not limited to:Creating realistic prompts for reference images, akin to guiding an AI to replicate desired outcomes.Testing prompts through the AI model and assessing results against established artistic standards: fidelity, light logic, anatomy, edge control, material differentiation, color theory, and composition.Providing structured feedback on specific failure modes—detailing not just what looks incorrect, but the reasons for these failures and the standards applied.Gathering reference images (only human-created digital art, no AI-generated) that exemplify the expected ideal outcomes for each use case.Candidate RequirementsWe are looking for individuals with:A professional or semi-professional background in digital art, capable of producing original artwork without the use of AI tools.Over two years of hands-on experience with Midjourney and a solid grasp of high-quality AI art generation.The skill to differentiate between visually striking outputs and those that are artistically valuable.Strong image assessment abilities grounded in professional artistic criteria, including appropriate light source logic, anatomical accuracy, medium-specific behavior, edge hierarchy, and material differentiation.Excellent written English skills (C1 or above), with the capability to document failure cases in an organized manner.A relevant artistic background in fields such as concept art, digital illustration, character design, anime/manga art, or art direction with practical experience.Application ProcessSteps: Apply → Complete qualifications → Join a project → Task completion → PaymentProject CommitmentDuring active phases, tasks are estimated to require approximately 10 to 20 hours per week based on project specifications. This is an estimate, not a guaranteed workload, and applies only while the project is active.Compensation• Paid contributions, with potential rates up to $50/hour.*• Set project rates or individual rates based on specific project requirements.• Some projects may offer incentive payments.*Note: Rates depend on expertise, skills assessment, location, project needs, and additional factors. Highly specialized experts may receive higher rates. Lesser rates may apply for less specialized roles.

Toloka AI is seeking a Freelance AI Trainer with a strong background in Biology and Python. This remote position is based in Glasgow, Scotland, and offers the chance to contribute to AI education projects from anywhere. Role overview This role centers on developing training materials and delivering online sessions focused on Biology and Python. The position involves working closely with teams to improve and expand Toloka AI's training programs. What you will do Create clear and engaging educational content in Biology and Python Lead online training sessions for learners Collaborate with team members to enhance program quality Location This is a remote freelance role open to candidates in Glasgow, Scotland, United Kingdom.

Toloka AI seeks a Freelance Junior Journalist - AI Trainer to help shape artificial intelligence systems. This contract role is remote and open to candidates located in Glasgow, Scotland, United Kingdom. Key responsibilities Create and curate training data for AI projects Use journalistic skills to produce content that is clear and accurate Support the improvement of AI’s understanding and information generation Uphold ethical standards in all aspects of content and data work Collaboration and work style This freelance position allows for full remote work. Join a team of professionals from different backgrounds while working from your own location.

Updated: 15 March 2026Freelance | 8–20 hrs/week | Remote (EU/UK)Are you an accomplished corporate development expert eager to apply your knowledge to groundbreaking AI initiatives? If you can dedicate 8 to 20 hours weekly while managing other commitments, we invite you to join 10x.team. Your contributions will enhance how sophisticated AI systems comprehend and strategize corporate growth.About Us10x.team is at the forefront of connecting exceptional freelance professionals with leading AI research institutions, driving advancements in large-scale AI models. We are looking for corporate development specialists within the EU or UK to collaborate on enhancing the practical relevance and precision of AI outputs in the corporate sector.Your ResponsibilitiesEvaluate, refine, and enhance AI-generated content on subjects such as mergers and acquisitions, strategic planning, due diligence, market analysis, financial modeling, and corporate structuring.Examine AI outputs for analytical depth, actionable recommendations, and industry relevance.Craft realistic corporate scenarios (e.g., acquisition targets, synergy evaluations, integration strategies, market entry tactics).Develop scenario variations from different viewpoints, including acquirer, target, board member, investor, or analyst.Identify and clarify inconsistencies or weaknesses in assumptions, business logic, or strategic suggestions.Instead of executing transactions or managing deals, you will influence how AI systems interpret and tackle complex corporate development issues, impacting millions of users worldwide.Who We’re Looking ForA seasoned corporate development, M&A, or strategy professional based in the EU or UK.Proven experience in evaluating deals, conducting market research, and performing financial analysis.Expertise in reviewing business cases, synergy assessments, and critical assumptions.

Join our innovative team at toloka-ai as a Freelance Research Physicist specializing in AI training. This remote position invites you to contribute your expertise in physics and artificial intelligence to advance our projects and solution development.As an AI Trainer, you will be responsible for designing and conducting experiments, interpreting data, and sharing your findings with our team to enhance our AI models. If you have a passion for research and the application of physics principles in technology, we want to hear from you!

Please submit your CV in English and indicate your level of English proficiency. toloka-ai, in partnership with Mindrift, offers freelance, project-based roles focused on advancing AI systems. This opportunity is structured around temporary assignments, not permanent employment. Each project aims to test, evaluate, and improve AI capabilities through the expertise of skilled professionals. Role overview The Optical Engineer – Freelance AI Trainer works on assignments that draw on deep knowledge of optics and physics. Project tasks can include: Creating original optics problems that reflect real-world research workflows in physics Designing computationally intensive challenges that cannot be solved manually in a short time Developing problems requiring advanced reasoning across areas such as mechanics, electromagnetism, thermodynamics, and quantum mechanics Basing assignments on authentic research scenarios or practical applications in optics and physics Documenting problem statements clearly and providing verified, accurate solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a related field Minimum of 2 years’ experience in applied, research, or teaching roles Experience with numerical simulation methods Ability to create problems that mirror real-world physics research Creative problem-solving skills across multiple physics disciplines Familiarity with modeling and approximation techniques in physics Excellent written English skills at C1 level or above This freelance role is ideal for optical engineers seeking flexible, part-time assignments without a long-term commitment. Project commitment During active project periods, tasks typically require 10–20 hours per week. Actual workload may change depending on project availability. Compensation Contributors can earn up to $35 per hour, based on skill, pace, and project requirements. Compensation depends on the scope, complexity, and expertise needed for each assignment. Application process Apply Meet qualifications Join a project Complete assigned tasks Receive compensation Location: Remote , Glasgow, Scotland, United Kingdom

Please submit your CV in English and specify your level of English proficiency. Mindrift matches skilled professionals with freelance, project-based work focused on testing and improving AI systems for technology companies. This is not a permanent position; assignments vary by project. Role overview This freelance AI Trainer role is designed for research physicists interested in part-time, flexible work. Assignments center on creating and documenting advanced physics problems for AI training. Tasks may include: Designing original optics problems that reflect real research workflows in physics Developing computationally intensive challenges that cannot be solved manually in a reasonable timeframe Writing problems requiring advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics Basing assignments on authentic research or practical applications in optics and physics Clearly documenting problem statements and supplying verified, correct solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related field At least 2 years of experience in applied, research, or teaching roles Familiarity with numerical simulation techniques Ability to design problems reflecting real-world physics research workflows Creative problem-solving across multiple physics disciplines Understanding of physics modeling and approximation methods Advanced written English skills (C1 level or higher) Application process Apply Pass qualification(s) Join a project Complete assigned tasks Receive compensation Time commitment Project phases typically require 10–20 hours per week. Actual workload depends on project needs and may vary outside of active phases. Compensation Contributors can earn up to $35 per hour, depending on expertise, pace, and project complexity. Pay rates may differ for other projects on the platform. Location: Remote , Glasgow, Scotland, United Kingdom

At Elliptic, we are pioneering the development of AI-driven tools that empower compliance teams to swiftly and confidently investigate cryptocurrency transactions. Our Automation Forge team is at the forefront of this innovation, crafting backend systems and AI integrations that support Elliptic's copilot, enabling investigators to track fund flows, identify trends, and manage risk in real-time.We are seeking a dedicated Backend Software Engineer to join our team and contribute to the design and implementation of APIs, workflows, and services that facilitate these capabilities.Your Impact:As a Software Engineer within the Automation Forge team, you will play a key role in designing and delivering robust, scalable services that underpin Elliptic’s copilot and other AI-enhanced functionalities.Collaborating with product managers, frontend engineers, and your technical lead, you will transform complex blockchain data into intuitive, user-centric solutions that assist compliance teams in tracing fund flows, revealing intricate patterns, and responding to risks with agility and assurance.By working collaboratively across various disciplines, you will contribute to the development of impactful features while consistently enhancing the quality, reliability, and usability of our platform. Your efforts will be instrumental in advancing Elliptic’s mission to create safer, more transparent, and efficient cryptocurrency markets.Your Responsibilities:Design, develop, and maintain backend services and event-driven systems utilizing TypeScript and Node.js.Build APIs and workflows that seamlessly integrate AI and LLM frameworks to enhance Elliptic's copilot and other intelligent features.Optimize and query data models across both relational and NoSQL databases.Work alongside cross-functional teams to bring features from concept to production.Participate in technical design reviews, planning sessions, and code reviews to continually enhance system quality.Contribute to infrastructure and observability practices within the team, ensuring shared responsibility for the performance of services in production.Your Qualifications:3–6 years of backend engineering experience specifically with TypeScript / Node.js.Strong API design expertise — you have developed and maintained production APIs and understand how to interface with external systems.Proficiency in data modeling — comfortable designing, optimizing, and querying data across various databases.Excellent collaboration skills — able to work effectively with diverse teams and communicate technical concepts clearly.

Join our innovative team at bjakcareer as a Backend Engineer specializing in AI and Agent Systems. In this role, you will be instrumental in designing and developing cutting-edge backend solutions that leverage artificial intelligence to enhance our agent systems. Your expertise will enable us to deliver exceptional user experiences and streamline operations.

Please submit your CV in English. Your CV must include a link to your portfolio with examples of your work - applications without a portfolio link will not be considered.Mindrift connects specialists with exciting project-based AI opportunities for leading tech companies, focusing on testing, evaluating, and enhancing AI systems. This role is project-based and does not involve permanent employment.We are seeking a talented Presentation Designer to be part of the Tendem project (https://tendem.ai/), where you will help create compelling storytelling workflows within our hybrid AI and human system.In this position, you will collaborate with Tendem Agents engaged in repetitive tasks, while you utilize your critical thinking, domain expertise, and design skills to develop visually stunning, high-impact presentations.Key ResponsibilitiesAs a contributor, you may engage in the following tasks:Create high-stakes pitch decks and professional one-pagers specifically designed for targeted audiences.Transform complex data into clear visual narratives with an emphasis on minimalism and precise information hierarchy.Enhance presentations with custom fonts, sophisticated animations, and impeccable visual consistency.Maintain a polished, persuasive style that blends corporate professionalism with creative flair across all deliverables.Implement formatting quality standards by rigorously validating visual alignment, pacing, and brand compliance prior to final submission.Desired QualificationsWe are looking for candidates who possess:A minimum of 2 years of experience in presentation design, graphic design, visual storytelling, or data visualization.A Bachelor's or Master's Degree in Graphic Design, Fine Arts, Visual Communications, or a related field is highly advantageous.A robust portfolio showcasing high-quality presentation decks (not basic templates).Proficiency in PowerPoint, Keynote, or similar presentation software, with a proven ability to create clean and structured presentations.Experience with design tools like Adobe Creative Suite (Illustrator, Photoshop) or Figma.The capability to distill complex ideas or data into engaging and visually appealing slides.A solid understanding of fundamental design principles, including layout, typography, and basic animations.A discerning eye for what constitutes a premium versus average presentation.Meticulous attention to detail and a strong work ethic.The ability to work independently and solve problems with minimal oversight.Application ProcessApply → Pass qualification(s) → Join our team and contribute to innovative AI projects.

Toloka AI seeks a Freelance English Writer & AI Trainer to help build and refine AI models. This contract role is fully remote and open to candidates living in Glasgow, Scotland, or elsewhere in the UK. Key responsibilities Write clear, precise content to support AI training tasks Create training materials aimed at improving AI language understanding Use expertise in English and artificial intelligence to ensure high-quality data Collaboration and work style Work from home while collaborating with Toloka AI's team. Contribute language and AI knowledge without needing to commute, making it possible to participate from anywhere in Glasgow or across the United Kingdom.

Toloka AI seeks a Freelance Mathematics Expert for a contract role based remotely in Glasgow, Scotland, United Kingdom. This position centers on applying advanced mathematical knowledge to support the development of artificial intelligence projects. Key Responsibilities Apply mathematical skills to train and enhance AI algorithms Review, refine, and test algorithmic solutions for accuracy and efficiency Work alongside colleagues from diverse backgrounds on projects shaping AI technology Collaboration and Work Style This freelance role is fully remote. Toloka AI values contributions from professionals across multiple disciplines, all working together to address complex challenges in artificial intelligence.