Backend Developer - AI Trainer

Role Overview Anyone AI is looking for experienced software engineers in Uruguay to collaborate remotely on projects with a leading AI laboratory. This part-time consultancy focuses on AI software engineering and training, offering flexibility and project-based compensation. What You Will Do Design and implement complex coding tasks, including bug fixes, new features, refactoring, and testing. Write clear natural-language specifications and provide reference implementations. Develop and improve unit and integration test suites. Review tasks created by peers for correctness, clarity, and realism. Identify edge cases, ambiguities, and potential failure scenarios. Ensure alignment between specifications, code, and expected outputs. Engagement Details This is a part-time, project-based consultancy. Compensation is provided per project. Set your own schedule, use your preferred tools, and work with other clients as long as their policies allow.

Role Overview Anyone AI is looking for a Python Developer to work remotely from Uruguay. This position involves collaborating with a team focused on AI-driven projects and software engineering challenges. What You Will Do Work alongside an established AI lab on a range of software projects Contribute to the development and improvement of Python-based solutions Engage in remote teamwork with peers across various initiatives Location This is a remote role open to candidates based in Uruguay.

Join Anyone-AI as an AI Software Engineering Trainer in Uruguay! In this dynamic role, you will leverage your expertise in AI and software engineering to educate and train aspiring professionals.As an AI Software Engineering Trainer, you will create and deliver engaging training sessions, develop educational materials, and provide mentorship to students. Your passion for technology and ability to communicate complex concepts will inspire the next generation of software engineers.

Anyone AI is in search of talented Full-Stack Developers proficient in Python and JavaScript/TypeScript to collaborate on innovative projects with a prestigious AI laboratory.Qualifications:Fluent in English with exceptional written communication skills.3–7 years of hands-on experience in software engineering.Expertise in Python and JavaScript/TypeScript; familiarity with Java, C#, or Go is a plus.Experience in backend or full-stack development within production environments.Knowledge of testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testing.Demonstrated ability to debug and work with extensive multi-file codebases.Experience with code reviews, refactoring, and production migrations.Engagement Type: Part-time, project-based expert evaluation work.Work Type: Remote.As a contributor, you will design and evaluate realistic software engineering tasks, which include bug resolution, feature implementation, refactoring/migration, and test generation. Responsibilities involve creating complex coding scenarios and reviewing peer submissions for quality and accuracy.This role is project-based and consultants are compensated per project; hourly rates are estimates based on anticipated completion time. Consultants have the flexibility to manage their own schedules, utilize their own tools, and may work with other vendors or employers concurrently (depending on their policies).Responsibilities:Contributors will:Design and implement multi-file coding tasks, covering bug fixes, feature development, refactoring, and testing.Craft clear natural-language specifications and reference implementations.Develop and expand unit and integration test suites.Review peer-generated tasks for accuracy, clarity, and realism.Identify edge cases, ambiguities, and potential failure modes.Ensure alignment between specifications, code, and expected outputs.

Role overview Speechify seeks an iOS Core Product Software Engineer in Montevideo, Uruguay. The focus is on building and enhancing software that makes content more accessible for users. This role centers on iOS platforms, with a goal of delivering smooth and dependable user experiences by applying up-to-date technologies and frameworks. What you will do Participate in all stages of the software development lifecycle, from concept through to release Collaborate with team members to design, develop, and improve iOS applications Ensure the quality of applications, aiming to meet real user needs Requirements Background working with iOS technologies and frameworks Interest in developing products that help people access and consume content Dedication to delivering reliable, user-centered software Location This position is located in Montevideo, Uruguay.

Please submit your CV in English and specify your English proficiency level. Mindrift, in partnership with toloka-ai, connects specialists to project-based AI work for major technology companies. This freelance Optical Engineer role centers on testing, evaluating, and improving AI systems. The position is project-based and not permanent. Key responsibilities Design original optical problems that reflect real-world physics research workflows Develop computationally intensive problems that cannot be solved manually in a short timeframe Create scenarios requiring advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics Base problems on current research challenges or practical applications in optics and physics Document problem statements clearly and provide verified, correct solutions Requirements Degree in Physics (Theoretical, Experimental, or Computational) or a related field Minimum 2 years of experience in applied, research, or teaching roles Hands-on experience with numerical simulation techniques Ability to design problems that mirror real research workflows Creative approach to problem design across various physics domains Familiarity with physics modeling and approximation methods Strong written English skills at C1 level or above How the process works Apply Pass qualifications Engage in a project Complete assigned tasks Receive compensation Time commitment During active project phases, tasks typically require about 10 to 20 hours per week. This is an estimate and not a guaranteed workload. Hours are relevant only while the project is active. Compensation Contributors can earn up to $17 per hour, depending on experience and pace. Pay may vary by project based on scope, complexity, and required expertise. Other projects on the platform may offer different compensation levels depending on requirements. Location This is a remote position based in Uruguay.

Please submit your CV in English and state your English proficiency level. About Mindrift Mindrift connects skilled professionals with project-based AI work for leading technology companies. The focus is on testing, evaluating, and improving AI systems. This is a freelance, project-based role, not a permanent position. Role Overview This freelance opportunity is designed for optical engineers with strong Python skills who want flexible, part-time work. Projects involve creating and validating computational physics problems that mirror real research and practical applications. What You Will Do Create original computational physics problems that reflect actual research workflows. Develop problems requiring Python programming for solutions, using libraries such as Numpy, SciPy, and Sympy. Ensure problems are computationally intensive and not solvable manually within a few days or weeks. Design challenges involving complex reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base problems on real research scenarios or practical physics applications. Validate solutions with Python and established physics simulation libraries. Document problem statements clearly and provide accurate solutions. What We Look For Degree in Physics (theoretical, experimental, or computational) or a related discipline. Proficiency in Python for numerical validation. Experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, Stata, or other programming languages is also valued. At least 2 years of professional experience in applied work, research, or teaching. Background in numerical simulation techniques. Ability to design problems that represent authentic research workflows in physics. Creative problem-solving across multiple areas of physics. Understanding of physics modeling and approximation methods. Excellent written English skills (C1 level or above). How the Process Works Apply → Pass qualifications → Join a project → Complete tasks → Get compensated Time Commitment During active projects, tasks typically require 10–20 hours per week. Actual workload depends on project needs and may vary. Compensation Earn up to $17 per hour, depending on expertise and task completion rate. Pay may differ by project scope, complexity, and required skills. Other projects on the platform may offer different rates. Location This is a remote position based in Uruguay.

About NextLink LabsNextLink Labs is an innovative technology company dedicated to empowering businesses in building, scaling, and securing their software applications. We understand that effective and secure technology is essential for the success of companies, teams, and products. Our commitment is to ensure our clients excel in their respective fields.As a remote-first organization with a diverse team spread across the country, we prioritize a comfortable and collaborative working environment. We strive to foster inclusivity, enabling every team member to thrive both professionally and personally.Position OverviewWe are looking for a passionate Senior .NET Developer with extensive expertise in C# and ASP.NET Core to enhance our Custom Software Development consulting team. The ideal candidate will focus on developing and maintaining scalable backend services and APIs, seamlessly collaborating with our clients' engineering teams.Key ResponsibilitiesAs a Senior .NET Developer, you will be responsible for designing and implementing robust backend systems and RESTful APIs while making critical architectural decisions to rapidly deliver features for an enterprise application utilizing Clean Architecture and CQRS patterns. If you are a proactive engineer who takes pride in ownership, we welcome you to join our dynamic team at NextLink Labs.What You'll DoDesign, develop, and maintain scalable backend services and APIs using C# and ASP.NET Core (.NET 9).Implement and extend Clean Architecture with CQRS patterns using MediatR.Collaborate with fellow engineers to architect and deliver modular, well-structured solutions.Engage with clients directly to provide demonstrations and receive feedback.Build and optimize data access layers utilizing Dapper and PostgreSQL.Establish request validation pipelines with FluentValidation.Participate in agile team practices, including daily stand-ups and weekly planning meetings.Conduct code reviews for team members' contributions.Contribute to observability and monitoring efforts using Serilog, OpenTelemetry, and Grafana.

Role Overview nix is looking for a Senior Frontend Engineer with strong Angular experience to join the team in Uruguay. This position focuses on building user-friendly applications and improving user experience across projects. Collaboration with designers and backend engineers is central to the work, with an emphasis on delivering reliable, high-quality code. What You Will Do Develop and maintain frontend applications using Angular Write clean, maintainable, and well-documented code Participate in code reviews to uphold code quality Work closely with designers and backend engineers to deliver features Mentor junior developers and support their professional growth What to Expect Opportunities to work on challenging projects A team that values knowledge sharing and collaboration Location This role is based in Uruguay.

Role Overview Toloka AI is looking for a Freelance AI Trainer with a background in Mechanical Engineering and Python programming. This remote contract is open to candidates based in Uruguay. What You Will Do Design and deliver training programs focused on AI applications in mechanical engineering. Develop course materials and hands-on exercises that highlight real-world use of Python in mechanical systems. Guide participants through practical projects and problem-solving sessions. Oversee the implementation of training sessions and support learners as they build new skills. What You Bring Professional experience in mechanical engineering. Strong Python programming skills. Ability to explain technical concepts clearly and create engaging educational content. Interest in AI technologies and their applications within engineering. Location This freelance role is remote and open to candidates located in Uruguay.

Toloka AI is looking for a freelance AI trainer who combines civil engineering experience with strong Python programming skills. This contract role is fully remote and open to professionals based in Uruguay. Role overview This position centers on supporting learners as they apply artificial intelligence to civil engineering projects. The focus is on practical instruction and guidance, helping others use Python effectively in real-world engineering scenarios. What you will do Train and mentor individuals or groups in the use of AI for civil engineering applications Share hands-on Python programming knowledge relevant to engineering tasks Contribute to the advancement of AI technologies by guiding learners and providing feedback Location This freelance role is remote and available to candidates residing in Uruguay.

Please submit your CV in English and specify your English proficiency level. About Mindrift Mindrift connects skilled professionals with project-based AI work for leading tech companies. Projects focus on testing, evaluating, and improving AI systems. This is a contract-based role, not a permanent position. Role Overview As a Freelance Electrical Engineer & Python Specialist - AI Trainer, you will design and validate engineering challenges to help train AI models. This work is remote and open to candidates based in Uruguay. Main Responsibilities Create computational engineering problems that mirror real-world engineering tasks Develop Python programming assignments for engineering calculations and simulations Ensure each problem requires rigorous computational thinking, such as numerical methods or iterative solutions Design tasks centered on system design, optimization, and analysis Base challenges on authentic research questions or practical engineering scenarios Validate solutions using Python and standard engineering libraries Document problem statements clearly and provide verified solutions Requirements Degree in Electrical Engineering or a related discipline Strong Python skills for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other relevant libraries is also valued At least 2 years of relevant professional experience (applied, research, or teaching) Understanding of practical engineering constraints and approximations Excellent written English (C1+ level) Professional certifications (such as CMME, SAS Certifications, CAP) and experience with international or applied projects are a plus How Projects Work Apply Complete qualification(s) successfully Join a project Complete assigned tasks Receive payment Time Commitment During active projects, expect to spend about 10–20 hours per week, depending on project needs. This is an estimate, not a guaranteed workload. Compensation Earn up to $17 per hour, depending on expertise and pace. Actual rates may vary by project based on scope, complexity, and required experience. Other projects on the platform may offer different pay structures.

Role Overview anyone-ai creates high-quality STEM training datasets for advanced AI models. The company’s data supports leading AI labs by helping improve their models’ technical reasoning. This remote role focuses on designing challenging, deterministic physics problems and solutions that test and expand the capabilities of AI systems. What You Will Do Develop complex physics problems for AI model training and evaluation. Write deterministic questions with a single, clearly correct answer. Provide detailed, validated solutions that clearly document each reasoning step. Create problems that require deep physical reasoning and multi-step analysis, not just recall. Use Python or specialized tools as needed for simulations, models, or computational workflows. Ensure all content is technically accurate, reproducible, and clearly written in English. Required Qualifications Bachelor’s, Master’s, or PhD in Physics or a closely related field. Research or industry experience in theoretical, experimental, or computational physics. Proficiency in Python and familiarity with scientific libraries such as NumPy or SciPy. Strong understanding of modeling, simulation, numerical methods, and multi-step problem solving. Ability to design original, challenging problems that reflect real-world physics workflows. Excellent attention to detail and strong technical writing skills in English. Preferred Qualifications Experience creating educational materials or assessments in physics. Familiarity with AI training methods. Location This is a remote position based in Uruguay.

Role Overview anyone-ai is building high-quality STEM training data to support the next generation of AI models. The team focuses on improving how AI systems reason through scientific problems. This role calls for expertise in biology to help shape the data that powers these advances. What You Will Do Create complex, deterministic biology problems that have a single, verifiable solution Develop solutions that mirror real scientific and analytical workflows, ensuring each answer is comprehensive and validated Work within your area of specialization, which may include molecular biology, genetics, systems biology, computational biology, bioinformatics, or other quantitative biology fields Location This is a remote position based in Uruguay.

Join SunnyData, a premier partner of Databricks, where our goal is to empower clients through scalable architectures, resilient data engineering pipelines, and cutting-edge machine learning and AI applications. As a Senior Fullstack Developer, you will become a vital member of a dynamic, cross-functional team, applying your expertise and innovative thinking to develop complex, scalable solutions. Collaborate with passionate professionals in an engaging environment, tackling exciting challenges and implementing best engineering practices.Your Impact:Drive the creation of outstanding products through collaboration, creativity, and a dedication to problem-solving.Promote sustainable engineering practices such as automated testing (TDD) and continuous integration and deployment (CI/CD).Utilize your solid technical foundation across a modern stack that includes Python, JavaScript/TypeScript, RESTful APIs, as well as frameworks like Angular, React, Svelte, or Express. Familiarity with Docker and cloud platforms such as AWS or Azure is also essential.Collaborate intimately with UI/UX designers to transform innovative concepts into reality, ensuring both usability and technical excellence.

Join FP Markets as a Business Development Manager, where you will play a pivotal role in driving our growth in the Latin American market. This remote position offers you the opportunity to leverage your expertise in business development to forge strategic partnerships and expand our client base. You will be responsible for identifying new business opportunities, developing a robust pipeline, and collaborating with cross-functional teams to execute our growth strategy.

Role Overview Toloka AI is seeking a Chemistry and Python Specialist to help train AI models focused on chemistry. This freelance role is fully remote within Uruguay and offers flexible hours.

Role Overview Toloka AI is looking for a Freelance AI Trainer with a strong background in Mathematics and Python. This remote contract role is open to candidates based in Uruguay. What You Will Do Develop clear, practical training materials focused on Mathematics and Python for AI applications Lead virtual workshops for learners at different skill levels Help students work through complex AI topics and answer their questions Impact Your work will support learners worldwide and help shape the next generation of AI education.

Join anyone-ai as a Math AI Training Specialist in Uruguay. In this exciting role, you will be responsible for developing and enhancing training data for our advanced AI systems. Your expertise in mathematics will play a crucial role in ensuring the accuracy and effectiveness of our AI algorithms.