Freelance Ai Evaluation Engineer jobs in Porto – Browse 163 openings on RoboApply Jobs

Freelance Ai Evaluation Engineer jobs in Porto

Open roles matching “Freelance Ai Evaluation Engineer” with location signals for Porto. 163 active listings on RoboApply Jobs.

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Toloka AI logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Join the Toloka AI team as a Freelance Agent Evaluation Engineer! In this pivotal role, you will contribute to the development and evaluation of AI systems, ensuring their effectiveness and reliability. Collaborate with a team of experts remotely from the beautiful Porto District of Portugal. If you're passionate about technology and eager to make a signific…

May 1, 2026
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Mindrift logo
Part-time|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Join the innovative team at Mindrift as an AI Workflow Engineer for the Tendem project (https://tendem.ai/). In this dynamic freelance role, you will develop cutting-edge automation systems utilizing Large Language Models (LLMs) within our unique AI + human collaborative environment.As an AI Pilot, you'll work alongside Tendem Agents to streamline repetitive tasks. Your skills in structured thinking, prompt engineering, and quality control will be pivotal in crafting scalable and reliable AI-driven workflows.This part-time, remote opportunity is perfect for professionals with a robust background in LLM integrations, prompt design, and AI automation systems.

May 2, 2026
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toloka-ai logo
Part-time|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

toloka-ai seeks Freelance AI Workflow Engineers to help advance the Tendem project. This part-time, remote role focuses on building automation systems that blend large language models (LLMs) with human input. Work supports the development of intelligent workflows for content generation, communication, and process automation. Key responsibilities Design and improve workflows that use LLM APIs for generating content, automating tasks, and facilitating communication Collaborate with Tendem Agents who manage repetitive tasks, ensuring effective cooperation between AI systems and human contributors Apply structured thinking, prompt engineering, and quality assurance to deliver scalable, reliable AI-powered solutions Requirements Hands-on experience integrating LLMs and designing prompts Background in developing or refining AI-driven automation systems Ability to work independently as a remote freelancer Project context The Mindrift platform connects subject matter experts with AI projects from leading technology companies. Tendem aims to unlock Generative AI’s potential by combining global expertise with advanced tools. Location Remote , Porto, Porto District, Portugal

Apr 24, 2026
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Mindrift logo
Part-time|$29/hr - $29/hr|Remote|Remote — Porto, Porto District, Portugal

Please submit your CV in English and specify your English proficiency level.Mindrift connects talented professionals with project-based AI opportunities for leading technology firms, focusing on the testing, evaluation, and enhancement of AI systems. This is a project-based opportunity, not permanent employment.Opportunity OverviewEach project presents distinct tasks, and contributors may be involved in:Designing original computational physics problems that mimic real-world physics research workflows;Creating challenges that require Python programming solutions (using libraries such as Numpy, SciPy, Sympy);Ensuring problems are computationally intensive, requiring considerable timeframes (days/weeks) for resolution;Developing scenarios that necessitate complex reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Grounding problems in actual research challenges or practical applications within physics;Verifying solutions through Python and standard physics simulation libraries;Clearly documenting problem statements and providing verified accurate answers.Candidate ProfileThis role is ideal for optical engineers with Python experience who are interested in part-time, non-permanent projects. The perfect candidate will have:A degree in Physics (Theoretical, Experimental, or Computational) or a related field;Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any programming language is also acceptable;A minimum of 2 years of professional experience, whether in applied work, research, or teaching;Experience with numerical simulation techniques;The capability to design problems that reflect real-world physics research workflows;Creative problem-solving skills across various areas of physics;Acquaintance with physics modeling and approximation methods;Strong command of written English (C1+).Process OverviewApply → Pass qualifications → Join a project → Complete tasks → Receive paymentProject Time CommitmentFor this position, tasks are expected to require approximately 10–20 hours per week during active phases, depending on project needs. This is an estimate, not a guaranteed workload, applicable only while the project is active.CompensationContributors can earn up to $29 per hour, depending on their level of expertise and contribution pace. Compensation varies across different projects based on scope, complexity, and required skills. Note that other projects on the platform may offer different payment rates based on their specific requirements.

Apr 30, 2026
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Mindrift logo
Part-time|$31/hr - $31/hr|Remote|Remote — Porto, Porto District, Portugal

We invite you to submit your CV in English, clearly indicating your level of English proficiency.Mindrift is dedicated to connecting talented specialists with project-based AI roles for leading technology firms, focusing on the testing, evaluation, and enhancement of AI systems. This position is project-based and does not constitute permanent employment.Key Responsibilities:Design innovative computational engineering challenges that replicate real-world engineering workflows;Craft problems that necessitate Python programming for solving engineering calculations and simulations;Ensure that the challenges are computationally intensive, requiring numerical methods or iterative solutions;Develop tasks related to system design, optimization, and analytical processes;Base challenges on genuine research questions or practical applications from engineering practices;Validate solutions using Python with standard engineering libraries;Clearly document problem statements and provide verified correct solutions.Qualifications:This role is ideal for engineers experienced in Python and open to part-time, non-permanent projects. Candidates should possess:A degree in Mechanical Engineering or a related field;Proficiency in Python for numerical validation. Experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other domain-specific libraries is acceptable;A minimum of 2 years of professional experience, including applied, research, or teaching experience;A strong understanding of practical engineering constraints and approximations;Excellent written English (C1+ proficiency);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are advantageous.How the Process Works:Apply → Pass qualifications → Engage in a project → Complete assigned tasks → Get compensated.Project Time Commitment:Tasks are projected to require approximately 10–20 hours per week during active phases of the project, contingent on project requirements. This is an estimate and not a guaranteed workload, applicable only during the project's active duration.Compensation:Contributors can earn up to $31 per hour, based on their experience and contribution pace. Compensation may vary across projects depending on their scope, complexity, and expertise required. Note that compensation levels may differ in other projects available on the platform.

May 1, 2026
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Toloka AI logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Toloka AI is looking for a freelance Civil Engineer & Python Specialist to support AI model training projects. This role is remote, with candidates expected to be based in Porto, Porto District, Portugal. Role overview This position combines civil engineering knowledge with Python programming to help improve AI systems. The work is project-based and allows for flexible, freelance engagement. Key responsibilities Offer civil engineering insights to guide AI model training Use Python to assist with AI development and related tasks Requirements Professional background in civil engineering Proficiency in Python Interest in artificial intelligence and openness to freelance work Location This is a fully remote freelance opportunity. Applicants must reside in Porto, Porto District, Portugal.

Apr 28, 2026
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Mindrift logo
Part-time|$31/hr - $31/hr|Remote|Remote — Porto, Porto District, Portugal

We invite you to submit your CV in English and indicate your English proficiency level. Mindrift connects talented professionals with project-based opportunities in AI for some of the leading tech companies, emphasizing the testing, evaluation, and enhancement of AI systems. Please note that participation is on a project basis, not permanent employment.Opportunity OverviewEach project presents unique challenges, and contributors may be tasked with:Crafting original computational engineering challenges that mirror real engineering workflows;Designing problems that necessitate Python programming for engineering calculations and simulations;Ensuring that challenges are computationally intensive and require numerical methods or iterative solutions;Creating problems focused on system design, optimization, and analysis;Drawing inspiration from real-world research challenges or practical applications within the engineering field;Validating solutions using Python alongside standard engineering libraries;Clearly documenting problem statements and providing verified correct answers.Desired QualificationsThis role is ideal for engineers experienced in Python who are open to part-time, non-permanent projects. The ideal candidate will possess:A degree in Electrical Engineering or a related field;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, or any other programming language will be considered equivalent;At least 2 years of professional experience, including applied, research, or teaching roles;A solid understanding of practical engineering constraints and approximations;Exceptional written English skills (C1+);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects will be advantageous.Process OverviewApply → Successfully complete qualifications → Join a project → Complete assigned tasks → Receive payment.Project CommitmentFor this project, tasks are estimated to require approximately 10–20 hours per week during active phases, contingent on project requirements. This is an estimate and not a guaranteed workload, applicable only while the project remains active.Compensation DetailsContributors for this project can earn up to $31 per hour, depending on their expertise and contribution pace. Compensation may vary across different projects based on their scope, complexity, and needed expertise. Please note that other projects on the platform may offer different earning potentials based on their specific requirements.

Apr 30, 2026
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Mindrift logo
Contract|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Mindrift is seeking talented DevOps / Automation Engineers (Infrastructure & Scaling) to join our innovative Tendem project (https://tendem.ai/), focused on constructing and sustaining scalable infrastructure for automation workflows in a hybrid AI + human environment.In this engaging role, referred to as an AI Pilot at Mindrift, you will work alongside Tendem Agents who manage repetitive tasks, while you lend your infrastructure expertise, ensuring system reliability and performance optimization to maintain stable and scalable automation pipelines.This flexible part-time remote position is perfect for professionals with hands-on experience in cloud infrastructure, system deployment, and managing high-load automation environments.What We DoThe Mindrift platform connects specialists with AI projects from leading tech innovators. Our mission is to harness the potential of Generative AI by integrating real-world expertise from around the globe.About the RoleThis freelance opportunity involves designing, deploying, and maintaining the infrastructure that supports automation workflows, guaranteeing system stability, scalability, and high availability across various environments.Key ResponsibilitiesDeploy and maintain self-hosted automation environments (e.g., n8n instances or similar systems).Design and manage infrastructure to support high-volume workflows and extensive data processing.Scale automation systems to accommodate concurrent workloads and performance-intensive tasks.Establish monitoring, logging, and alerting systems to oversee workflow performance and detect failures.Implement alerts for critical events (e.g., node failures, performance drops, system instability).Ensure system uptime, reliability, and fault tolerance across automation pipelines.

May 2, 2026
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CXG logoCXG logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Join a global community dedicated to enhancing the experiences of the world’s most prestigious luxury brands! CXG, a leading customer experience agency serving premium and luxury brands, is seeking Customer Experience Evaluators who are existing customers of luxury brands.As a Freelance Evaluator for Luxury Brands, you will have the opportunity to conduct multiple evaluations each month and provide your invaluable feedback through a questionnaire. Your assignments will be as diverse as our luxury clientele and industries, including high fashion, jewelry, cosmetics, luxury watches, automobiles, and more. Your evaluations may involve visiting a physical store, returning a purchase, making an online purchase, or scheduling an appointment with a store.Please note: Candidates must not have worked for luxury retail brands to maintain the integrity and objectivity of the evaluations.Your feedback can significantly influence brand strategies and help shape the direction of a brand, making this a unique opportunity for you to have a meaningful impact in the luxury market.Responsibilities:Conduct discreet evaluations of your favorite luxury brands in-store, online, or sometimes in both settings.Provide objective feedback on your experiences.Select missions that align with your profile and interests.Complete questionnaires after each evaluation.Meet all project objectives and special requirements of the luxury brand you represent.How to Apply:To become an evaluator with us, follow these simple steps:Register on our website live.cxg.com and you will receive an email with your credentials.Log into our platform and tell us more about yourself. Once completed, our team will verify your profile and reach out to you.Check the 'welcome package' and pass the General Certification.Now you are ready! You can browse and apply for missions that interest you.About CXG:CXG is a global customer experience agency that serves premium and luxury brands. With 12 offices around the world, we can cater to 70 countries. We are a team of over 220 customer experience specialists and a network of more than 80,000 evaluators worldwide. Learn more about what we do at www.cxg.com.Enjoy the flexibility of working through our mobile app, where you can browse and apply for missions, complete certifications, submit surveys, and more, all while on the go.Contact us for more information!

Jun 13, 2025
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Toloka AI logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Toloka AI seeks a Freelance English Writer & AI Trainer to join its remote team in Porto, Portugal. This position blends content creation in English with hands-on involvement in training AI systems. Role overview The main focus is writing clear and engaging English text. Alongside writing, the role supports the development of artificial intelligence by contributing to training tasks and projects. Collaboration happens remotely with a team that values new ideas and ongoing progress. Location This is a remote role based in Porto, Porto District, Portugal.

Apr 27, 2026
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Mindrift logo
Part-time|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Role overview Mindrift seeks a Freelance Low-Code Automation Engineer to support the Tendem project. This part-time, remote role focuses on building and optimizing automation using Make.com, n8n, and JavaScript. Candidates may work from Porto, Portugal or fully remote. What you will do Design and implement automation workflows with low-code tools such as Make.com and n8n Extend and customize workflows using JavaScript when needed Work alongside Tendem Agents to automate and streamline repetitive tasks Develop reliable and scalable solutions by applying structured problem-solving Maintain high standards for quality and attention to detail in all workflow executions Who thrives in this role Those with hands-on experience in low-code automation platforms Engineers skilled at designing and refining workflow automations Individuals comfortable using JavaScript for custom automation logic People who prioritize quality, reliability, and clear processes The AI Pilot specialist At Mindrift, this specialist is called an "AI Pilot." AI Pilots work closely with human agents, ensuring smooth collaboration between automated systems and manual processes within a hybrid AI and human framework.

Apr 24, 2026
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Mindrift logo
Part-time|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Mindrift is seeking talented Low-Code Automation Engineers proficient in Make.com, n8n, and JavaScript to join our innovative Tendem project. In this dynamic role, referred to as an AI Pilot at Mindrift, you will partner with Tendem Agents to streamline repetitive tasks while applying your automation expertise, analytical approach, and quality assurance to ensure efficient and scalable workflows across diverse systems.This part-time remote position is perfect for individuals with substantial experience in low-code automation platforms, workflow design, and JavaScript customization.About MindriftAt Mindrift, we connect industry specialists with cutting-edge AI projects from leading technology firms. Our goal is to harness the power of Generative AI by leveraging real-world expertise globally.Position OverviewThis freelance role focuses on the Tendem project. As a Low-Code Automation Engineer, you will be responsible for designing, developing, and refining sophisticated automation workflows across various platforms, guaranteeing reliable performance, scalability, and effective data management within integrated systems.Primary ResponsibilitiesDesign and assess intricate automation workflows spanning multiple business tools and platforms.Create and enhance workflows utilizing low-code platforms (Make.com, n8n), APIs, webhooks, and event-driven logic.Incorporate custom JavaScript within automation solutions to manage advanced logic, data transformations, and unique scenarios.Connect and synchronize data across systems such as Airtable, Google Sheets, Notion, CRMs, and more.Ensure dependable workflow execution through appropriate error handling, logging, and fallback strategies.Diagnose and enhance automation performance, minimize failures, and increase operational efficiency.Support the automation of communication and operational processes such as messaging, outreach, and notifications.CompensationContributors on this project can earn up to $50 per hour, based on their experience and contribution speed. Compensation may vary across projects depending on their scope, complexity, and expertise required. Other projects on the platform may offer different earning potentials.

May 2, 2026
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Toloka AI logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Toloka AI seeks a Freelance Mathematics Expert - AI Trainer to support the development and improvement of artificial intelligence models. This remote position is based in Porto, Porto District, Portugal, and centers on applying mathematical skills to help AI systems achieve reliable accuracy and efficiency. Key responsibilities Use mathematics expertise to train and refine AI models Collaborate with a team focused on AI development Contribute to projects that move AI technologies forward Work arrangement This is a freelance role with all collaboration happening online. Team members work together remotely to improve AI systems.

Apr 27, 2026
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Toloka AI logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Toloka AI is seeking a freelance specialist with a strong background in biology and Python programming. This remote position is based in Porto, Portugal. Role overview This project centers on training AI models to better understand biological concepts using Python. The work involves applying subject matter expertise to improve how AI interprets and processes information in biology through code-based tasks. What you will do Use knowledge of biology and Python to guide AI model training Contribute to the development of educational resources powered by AI Location This freelance role is fully remote, with a focus on candidates located in Porto, Porto District, Portugal.

Apr 29, 2026
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CXG logoCXG logo
Contract|On-site|Porto, Porto District, Portugal

Transform your enthusiasm for luxury into a rewarding career. Immerse yourself in the realm of premium brands and leave a significant mark in sectors like fashion, beauty, jewelry, or automotive. Join CXG, the global frontrunner in customer experience, and collaborate with renowned brands such as Louis Vuitton, Dolce & Gabbana, Bentley, Prada, Versace, and more.Role Overview:As a luxury brand evaluator, you will delve into the luxury sector to discreetly evaluate customer experiences, offering vital insights that empower brands to enhance their services. Your responsibilities will encompass visiting boutiques, making online purchases, and returning products, where your feedback will influence the trajectory of luxury.• Flexible Scheduling - Each in-store evaluation lasts around 20 minutes, allowing you the freedom to undertake multiple assignments.• Abundant Opportunities - Complete several evaluations each month while engaging with some of the most esteemed brands globally.Our Esteemed Luxury Partners:Fashion & Couture• Louis Vuitton, Saint Laurent, Balenciaga, Versace, Prada, Moncler, Fendi, Bottega Veneta, Ferragamo, COS, Bally, Dolce & GabbanaJewelry & Watches• Tiffany & Co., De Beers, Piaget, IWC, Boucheron, PandoraBeauty & Skincare• Guerlain, Sephora, L’Oréal, GivenchyAutomotive• Bentley, Jaguar, Genesis, Maserati, VespaYour Responsibilities:1. Select Your Assignments - Choose missions that resonate with your interests and profile.2. Evaluate Luxury Stores or Online Platforms - Interact with sales associates either in-store or from your home.3. Observe Meticulously - Assess the ambiance, service quality, and overall customer experience.4. Deliver Honest Feedback - Utilize our platform to communicate your observations via structured questionnaires.Benefits:• Collaborate with iconic brands across various industries.• Flexible missions tailored to your preferences.• Compensation for your time and insights, with potential reimbursement for purchases made.• An intuitive platform for managing missions and providing feedback.Joining the CXG Community:1. Register: Sign up at live.cxg.com and verify your email.2. Complete Your Profile: Fill out your information completely and get verified.3. Get Certified: Pass the General Certification to unlock missions.4. Apply for Missions: Discover assignments with brands that inspire you.5. Start Evaluating: Make a meaningful impact in the luxury market.Compensation:• Non-Purchase Evaluations: Earn a fee based on the complexity of the mission.• Purchase-Based Evaluations: Reimbursement for approved items as specified in the mission brief.

Jun 26, 2025
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Toloka AI logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Toloka AI seeks a Freelance Junior Journalist - AI Trainer to support its AI training projects. This remote position is based in Porto, Porto District, Portugal, and blends content creation with hands-on involvement in artificial intelligence development. Key responsibilities Write and edit materials that contribute directly to AI training initiatives Work closely with a team dedicated to advancing artificial intelligence Offer feedback and ideas to help refine AI processes Collaboration and flexibility This freelance role allows for work from any location. Team members value thoughtful writing and regular collaboration as they help shape AI technologies.

Apr 27, 2026
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Mindrift logo
Contract|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Mindrift brings together specialists for project-based AI initiatives, collaborating with leading technology companies. The work centers on testing, evaluating, and refining AI systems for real-world use. Please note: this is a freelance, project-based role rather than a permanent position. Role overview This freelance Supply Chain Consultant - AI Trainer position calls for deep expertise in procurement and supply chain operations. The consultant will draw from industry experience to design realistic disruption scenarios, define expected outcomes and mitigation plans, and review AI-generated recommendations for accuracy and business value. What you will do Create authentic supply chain disruption scenarios based on actual manufacturing and procurement challenges, such as supplier delays, quantity changes, logistics problems, or quality failures. Define likely outcomes and effective mitigation strategies for each scenario. Review AI-generated suggestions, checking for practical business logic and relevance. Assess deliverables for precision, completeness, and fit within ERP systems (including Microsoft Dynamics 365, Coupa, Jaggaer, Ariba/SAP). Support structured data creation and validation, following established guidelines. Requirements Minimum 4 years of hands-on experience in procurement, supply chain, or purchasing, preferably in manufacturing. Solid understanding of procurement processes: purchase orders, vendor management, inventory, and production planning. Direct experience with ERP platforms such as SAP, Oracle, or Microsoft Dynamics 365. Ability to create and analyze disruption scenarios and related mitigation plans. Knowledge of disruption types, including delays, shortages, quality issues, and logistics challenges. Familiarity with Incoterms and logistics or transportation management. Understanding of Bill of Materials (BOM) and production planning methods. Experience tracking supplier performance metrics (such as OTIF, lead times, quality scores). Strong analytical skills for reviewing AI outputs against real business needs. Background in data validation, structured data entry, or annotation work. Excellent written English communication skills. Project process The process includes: Application, Qualification Assessment, Project Engagement, Task Completion, and Compensation. Time commitment Estimated 10-20 hours per week during active project periods. Actual workload may vary based on project requirements; there is no guaranteed minimum or maximum number of hours. Compensation Rates up to $50 per hour, depending on the specific project.

Apr 24, 2026
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toloka-ai logo
Contract|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Mindrift connects talented specialists with exciting, project-based AI opportunities at leading technology firms, focusing on the testing, evaluation, and enhancement of AI systems. Please note: this role is project-based and does not constitute permanent employment.Role OverviewAs a Procurement and Supply Chain Consultant within this project, you will leverage your extensive experience to create realistic supply chain disruption scenarios. Your role will include defining anticipated outcomes and mitigation strategies, as well as assessing AI-generated recommendations for their accuracy, comprehensiveness, and relevance to business needs.Key ResponsibilitiesCrafting realistic scenarios of supply chain disruptions (e.g., supplier delays, changes in quantity, logistics challenges, quality failures) based on real-world contexts in manufacturing and procurement.Defining expected outcomes and suitable mitigation strategies for each scenario.Evaluating AI-generated responses and recommendations to verify alignment with practical business logic.Reviewing outputs for accuracy, completeness, and relevance within ERP systems, particularly Microsoft Dynamics 365, Coupa, Jaggaer, and Ariba (SAP).Contributing to structured data creation and validation tasks in accordance with established guidelines and frameworks.QualificationsA minimum of 4 years of hands-on experience in procurement, supply chain management, or purchasing, preferably within a manufacturing setting.In-depth understanding of procurement workflows, including purchase orders, vendor management, inventory, and production planning.Practical experience with ERP systems such as SAP, Oracle, or Microsoft Dynamics 365.Demonstrated ability to conceptualize and analyze supply chain disruption scenarios and mitigation strategies.Strong grasp of various disruption types: delays, shortages, quality issues, and logistics challenges.Familiarity with Incoterms and logistics management.Understanding of Bill of Materials (BOM) structures and production planning methodologies.Experience with supplier performance metrics, including OTIF, lead times, and quality scores.Analytical mindset with the capability to assess AI outputs against real-world business logic.Experience in data validation, structured data entry, or annotation tasks.Excellent written communication skills in English.How to ProceedApply, pass the qualifications, join a project, complete tasks, and get compensated.Project Time ExpectationsThis project anticipates requiring approximately 10-20 hours of work per week during active phases, based on project needs. This is an estimate and not a guaranteed workload, applicable only while the project is active.CompensationFor this project, contributors can earn up to $50 per hour, depending on experience and project requirements.

May 2, 2026
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Mindrift logo
Part-time|$29/hr - $29/hr|Remote|Remote — Porto, Porto District, Portugal

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists in chemistry and Python with project-based AI work for technology firms. These freelance roles focus on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. Role overview As a Chemistry & Python Specialist, contributors work on a variety of computational chemistry tasks. Projects may involve: Designing original computational chemistry problems that mirror real research workflows Developing Python solutions using libraries such as numpy, scipy, and chemistry-specific packages Creating problems that require computational approaches beyond manual calculation Formulating challenges in physical chemistry, quantum chemistry, or molecular modeling that demand advanced reasoning Basing problems on real-world research issues or practical chemistry applications Validating answers through Python and established computational chemistry methods Documenting both problem statements and verified solutions thoroughly Requirements Degree in Chemistry or a related field Proficiency in Python for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar libraries is also acceptable At least 2 years of relevant experience (applied work, research, or teaching) Experience with numerical methods in chemistry Strong knowledge of computational chemistry concepts and methods Excellent written English (C1 level or higher) Project process The engagement process includes applying, completing qualifications, joining a project, performing assigned tasks, and receiving compensation. Time commitment Active project phases typically require an estimated 10–20 hours per week, depending on project needs. Actual workload may vary. Compensation Contributors can earn up to $29 per hour, depending on expertise and speed. Compensation is project-specific and may vary based on scope and complexity. Other projects on the Mindrift platform may offer different pay rates.

Apr 29, 2026
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toloka-ai logo
Part-time|$29/hr - $29/hr|Remote|Remote — Porto, Porto District, Portugal

This freelance, project-based role connects mathematics experts with Python skills to AI training initiatives for toloka-ai. Work is remote, based in Porto, Portugal, and assignments are not permanent positions. Role overview Projects involve designing and validating advanced computational mathematics problems that reflect real mathematical research and practical applications. Contributors may: Create original math problems that mirror authentic research workflows Develop problems requiring Python programming to solve, often using Numpy, SciPy, or Sympy Ensure problems are computationally intensive, beyond manual solution within days or weeks Design tasks involving reasoning in number theory, combinatorics, graph theory, and numerical analysis Base problems on real research challenges or practical mathematical scenarios Validate solutions in Python with established mathematical libraries Document problem statements and provide verified, correct answers Requirements Degree in Mathematics (Pure or Applied) or a related field Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, Stata, or similar tools is also acceptable At least 2 years of professional experience (applied, research, or teaching) Experience with numerical methods and symbolic computation Ability to design problems that reflect genuine mathematical research workflows Understanding of computational complexity theory Strong written English skills (C1 level or higher) How to participate Apply with a CV in English, including your English proficiency level Pass relevant qualification steps Join a project Complete assigned tasks Receive compensation Workload and compensation Project workload is estimated at 10–20 hours per week during active phases, depending on requirements. This is an estimate and not a guaranteed number of hours. Compensation can reach up to $29 per hour equivalent, based on contribution level and pace. Actual rates may vary by project scope, complexity, and expertise required. Other projects on the platform may offer different earning levels depending on their needs.

Apr 29, 2026

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