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Join Sigma Software Group as a Senior Full-Stack Developer specializing in Python and React. In this role, you will be responsible for designing, developing, and maintaining high-quality web applications. You will collaborate with cross-functional teams to deliver innovative solutions that meet client needs.
Sigma Software Group is a leading IT service provider with a strong presence in the tech industry. We are dedicated to delivering cutting-edge solutions to our clients, fostering an innovative work environment and supporting the continuous growth of our employees.
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Please submit your CV in English and specify your English proficiency level. This freelance contract with Toloka AI (via Mindrift) is open to material scientists with strong Python skills. The focus is on supporting AI development for technology companies. The role is remote and based in Belo Horizonte, State of Minas Gerais, Brazil. This is not a permanent …
We invite you to submit your CV in English, along with details of your English proficiency level.At Mindrift, we specialize in connecting top-tier professionals with project-based AI opportunities for leading technology firms. Our focus is on the assessment, evaluation, and enhancement of AI systems through innovative contributions from specialists. This role is project-based and does not offer permanent employment.Key Responsibilities:As a contributor, you will engage in various project-specific tasks, which may include:Creating original optical problems that accurately simulate real-world physics research workflows;Designing computationally demanding challenges that require extensive timeframes to solve;Formulating complex problems that necessitate advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Base your problems on actual research challenges or relevant practical applications in optics and physics;Clearly document problem statements and provide verified correct solutions.Ideal Candidate Profile:This opportunity is well-suited for optical engineers looking for flexible, part-time non-permanent projects. The ideal candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or a related discipline;At least 2 years of relevant professional experience, including applied, research, or teaching roles;Proficiency in numerical simulation methodologies;Capability to design problems that reflect authentic physics research processes;Innovative thinking in problem creation across various physics domains;Familiarity with physics modeling and approximation methods;Strong command of written English (C1+ level).Application Process:Interested candidates should apply, pass the necessary qualifications, join a project, complete assigned tasks, and receive compensation for their contributions.Workload Expectations:During active phases of projects, contributors should anticipate committing approximately 10–20 hours per week. Please note that this is an estimate and the actual workload may vary based on project needs.Compensation:Contributors can earn up to $14 per hour, depending on their experience level and contribution pace. Compensation may differ across projects based on their complexity, scope, and expertise required.
Sigma Software Group
Role Overview Sigma Software Group is hiring a Principal Full-Stack Engineer in Brasília. This position centers on frontend technologies while covering the full stack. The role involves building web applications and working closely with colleagues from different disciplines to create strong user experiences. What You Will Do Design and develop web applications with a focus on frontend performance and usability Collaborate with cross-functional teams throughout the project lifecycle Apply coding expertise to deliver reliable, maintainable solutions Maintain high standards for code quality and user experience Location Based in Brasília.
We invite you to submit your CV in English, clearly indicating your level of English proficiency.Mindrift specializes in connecting talented professionals with project-based AI opportunities for top technology companies, focusing on the testing, evaluation, and enhancement of AI systems. This position is project-based and not a permanent role.Key ResponsibilitiesAs a contributor, your tasks may include:Designing innovative computational physics problems that replicate authentic physics research workflows;Creating Python-based problems to solve using libraries such as Numpy, SciPy, and Sympy;Ensuring that problems are computationally intensive, requiring significant time to solve (days/weeks) rather than manual solutions;Developing scenarios that involve complex reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Using real research challenges or practical applications from the field of physics as a basis for problems;Validating solutions through Python with standard physics simulation libraries;Documenting problem statements clearly and providing verified correct answers.QualificationsThis role is ideal for physicists with Python experience who are looking for part-time, non-permanent project work. The ideal candidate will possess: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, and Stata is also acceptable;A minimum of 2 years of professional experience, which may include applied, research, or teaching experience;Experience in numerical simulation methods;The ability to create problems that reflect real physics research workflows;Creative problem-solving skills across various areas of physics;Familiarity with physics modeling and approximation techniques;Strong written English skills (C1+ level).How the Process WorksApply → Pass qualifications → Join a project → Complete tasks → Receive paymentProject Time ExpectationsDuring active phases, tasks are estimated to require approximately 10–20 hours per week based on project demands. This is an estimate and not a guaranteed workload.CompensationContributors can earn up to $14 per hour, depending on their level of expertise and contribution pace. Please note that compensation can vary by project based on scope, complexity, and required expertise. Other projects on the platform may offer different earning levels based on their specific requirements.
We invite you to submit your CV in English, specifying your level of English proficiency.Mindrift bridges the gap between specialists and exciting project-based AI roles with leading tech companies, dedicated to the testing, evaluation, and enhancement of AI systems. Please note that involvement is project-specific and does not lead to permanent employment.Your role will encompass:Crafting unique computational physics challenges that emulate authentic physics research workflows;Developing problems that require Python programming for resolution (utilizing Numpy, SciPy, Sympy);Ensuring that the problems are computationally intensive, requiring several days or weeks to solve manually;Formulating problems that demand complex reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Drawing from actual research challenges or practical applications within physics;Validating solutions through Python using standard physics simulation libraries;Providing clear documentation for problem statements and verified answers.We're looking for candidates who possess: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, domain-specific libraries, Stata, or any programming language is acceptable;A minimum of 2 years of professional experience in applied research or teaching;Expertise in numerical simulation methods;The ability to design challenges that reflect real physics research processes;Innovative problem design skills across various physics fields;An understanding of physics modeling and approximation techniques;Exceptional written English skills (C1+ level).How the application process operates:Apply → Pass qualification(s) → Join a project → Complete tasks → Get compensatedProject time expectations:During active project phases, tasks are estimated to require approximately 10–20 hours per week, depending on project needs. Please note this is an estimate and not a guaranteed workload.Compensation:Contributors can earn up to $14 per hour, based on their level of expertise and contribution speed. Compensation may vary among projects depending on their complexity, requirements, and scope.
About the Department:The technology team at BTG Pactual plays a crucial role in driving significant transformations within the bank. We invest in the latest market innovations to ensure our systems are at the forefront of financial technology. Our department is responsible for managing pricing, risk, accounting, and regulatory compliance across a variety of financial assets, including Fixed Income, Equities, Credit, and Derivatives traded by the bank. We actively support and develop new projects, working closely with finance and trading desks. In this role, you will help extend our robust framework across Latin American countries including Chile, Colombia, Peru, Mexico, Argentina, and Uruguay.Your Daily Responsibilities:Developing new projects with a focus on performance optimization and scalability.Collaborating with cross-functional teams to enhance existing systems.Participating in the full software development lifecycle, from design through implementation.
Role overview This Senior Full Stack Engineer position at Encora is a full-time, remote role based in Brazil. The team works from home and collaborates across design, product, and engineering to build and enhance a SaaS single-page application. The platform is built with React and communicates via GraphQL to a serverless AWS backend. The focus is on helping sales organizations improve their go-to-market strategies and drive revenue growth. What you will do Design, develop, and deploy a modern web application using current web technologies and cloud solutions Lead architectural discussions and decisions Break down features into actionable stories and tasks Write clean, efficient, and maintainable code that aligns with industry standards Test software components thoroughly to identify and fix bugs, ensuring reliability Optimize code and system architecture for scalability and strong performance Work closely with designers, product managers, and QA to integrate software modules smoothly Apply creative problem-solving with a focus on client success Requirements Strong experience with TypeScript, JavaScript, React, and Node.js, especially TypeScript Background in microservices architecture, GraphQL, Apollo, Docker, and AWS services (Lambda, Aurora, DynamoDB, DocumentDB, ECS) Demonstrated ability to build high-performance applications Location and work arrangement Based in Brazil Full-time position Remote, work-from-home setup
Role overview Toloka AI seeks a freelance AI Trainer who combines civil engineering experience with strong Python programming skills. This contract position is fully remote, with work based in Belo Horizonte, State of Minas Gerais, Brazil. What you will do Guide and support others in civil engineering topics and Python programming as part of AI-focused projects. Help develop and refine methods for AI training. Apply your expertise to influence how new AI tools are built for the civil engineering field. Location This is a remote role tied to Belo Horizonte, State of Minas Gerais, Brazil.
Pavago is seeking a Senior Full Stack Software Engineer based in Brazil for a fully remote position. This role centers on designing and building software solutions that strengthen our product lineup and support ongoing improvements. Role overview The Senior Full Stack Software Engineer will work across both front-end and back-end technologies. Working closely with colleagues from different teams, you will play a key part in delivering projects that make a real difference for users. What you will do Design and develop software features from concept to deployment Collaborate with cross-functional teams to create seamless user experiences Contribute to the ongoing enhancement of Pavago’s products Requirements Strong experience with both front-end and back-end development Ability to work effectively in a remote team setting Comfortable collaborating with different teams to deliver high-quality solutions
Please submit your CV in English and indicate your English proficiency level. toloka-ai, through the Mindrift platform, offers project-based freelance work focused on evaluating, testing, and improving AI systems for leading technology companies. This is not a permanent position; assignments are tied to specific projects. Key responsibilities Create original optics challenges that reflect real research processes in physics. Design computationally intensive problems that require computer-based solutions. Develop tasks involving advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base problem sets on real-world research questions or practical scenarios in optics and physics. Document problem statements clearly and provide accurate, verified solutions. Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related field. Minimum of 2 years in applied, research, or teaching roles. Experience with numerical simulation methods. Ability to construct problems that mirror authentic research approaches in physics. Creative mindset for developing problems across various physics domains. Knowledge of physics modeling and approximation techniques. Strong written English skills at C1 level or higher. Project workflow Apply Pass qualification steps Join a project Complete assigned tasks Receive compensation Time commitment During active projects, expect to dedicate approximately 10 to 20 hours per week. Actual hours may vary and are only required while a project is in progress. Compensation Rates are up to $14 per hour, depending on experience and the complexity of the tasks. Compensation may differ between projects based on their requirements. Location This freelance remote position is based in Belo Horizonte, State of Minas Gerais, Brazil.
At Mindrift, we specialize in connecting top-tier specialists with dynamic project-based opportunities in the field of AI for leading technology firms, focusing on the testing, evaluation, and enhancement of AI systems. Please note that participation is project-based and does not constitute permanent employment.About the PositionAs a Procurement and Supply Chain Specialist in this role, you will leverage your extensive hands-on experience to craft realistic disruption scenarios. You will be responsible for defining expected outcomes and mitigation strategies, while also evaluating AI-generated recommendations for their accuracy, completeness, and relevance to business needs.Key ResponsibilitiesWhile each project entails unique tasks, contributors may engage in:Creating realistic scenarios of supply chain disruptions (such as supplier delays, quantity adjustments, logistics complications, and quality failures) based on actual manufacturing and procurement contexts.Establishing expected outcomes and suitable strategies for mitigation for each disruption scenario.Assessing AI-generated outputs against real-world business logic for accuracy and relevance.Reviewing outputs for accuracy, completeness, and applicability within ERP environments, particularly in systems like Microsoft Dynamics 365, Coupa, Jaggaer, and Ariba (SAP).Participating in structured data creation and validation tasks in alignment with established guidelines and frameworks.We Seek Candidates Who Have:A minimum of 4 years of direct experience in procurement, supply chain, or purchasing, preferably in a manufacturing context.A robust understanding of procurement workflows, including purchase orders, vendor management, inventory, and production planning processes.Hands-on experience with ERP systems such as SAP, Oracle, or Microsoft Dynamics 365.A proven capability to devise and analyze supply chain disruption scenarios and their mitigation strategies.A solid grasp of various disruption types, including delays, shortages, quality issues, and logistics challenges.Knowledge of Incoterms and logistics management.Familiarity with Bill of Materials (BOM) structures and production planning methodologies.Experience with supplier performance metrics such as On-Time In-Full (OTIF), lead times, and quality scores.An analytical mindset with the ability to evaluate AI outputs against real-world business logic.Experience in data validation, structured data entry, or annotation tasks.Proficient written communication skills in English.Application ProcessTo apply, submit your application, pass the qualification assessments, join a project, complete assigned tasks, and receive compensation for your contributions.Project Time ExpectationsThis project is expected to require approximately 10-20 hours per week during active phases, depending on project demands. Please note that this is an estimated workload and is not guaranteed.CompensationContributors can earn up to $50 per hour based on experience and project requirements.
Please submit your CV in English and indicate your level of English proficiency.Mindrift is a pioneering platform that connects talented specialists with project-based opportunities in AI for leading tech companies. Focused on the evaluation, testing, and enhancement of AI systems, we offer contributors a flexible way to engage in innovative projects. Note: This is a project-based role and not a permanent position.Opportunity OverviewEach project presents unique challenges, where contributors might:Invent original material engineering problems that replicate genuine engineering workflows;Develop problems that necessitate Python programming for engineering calculations and simulations;Create computationally intensive problems requiring numerical methods or iterative solutions;Formulate problems focused on system design, optimization, and analysis;Base scenarios on actual research challenges or practical applications within engineering;Validate solutions using Python alongside standard engineering libraries;Clearly document problem statements and provide verified correct answers.Ideal Candidate ProfileThis role is well-suited for material scientists and engineers with Python experience who are open to part-time, non-permanent projects. The ideal candidates will possess:A degree in Material Science or a related field;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other domain-specific libraries may also be acceptable;A minimum of 2 years of professional experience in applied research or teaching;An understanding of practical engineering constraints and approximations;Strong written English skills (C1 or higher).How to EngageApply → Pass qualification(s) → Join a project → Complete tasks → Get compensatedProject Time CommitmentDuring active project phases, contributors can expect to dedicate approximately 10–20 hours per week, based on project requirements. This is an estimate and not a guaranteed workload.Compensation DetailsContributors may earn up to $14 per hour, depending on their expertise and contribution pace. Compensation can vary by project based on scope, complexity, and required skills. Please note that other projects on our platform may offer different earning levels based on their unique needs.
About the Department:We are dedicated to developing banking systems, managerial controls, cost management, accounting, and regulatory compliance regarding credit positions reported to BACEN (Central Bank of Brazil).Our focus is on delivering efficient, robust, and high-impact solutions. Every team member actively participates in development, testing, and discussions on solutions, addressing both technical and business aspects. We employ agile methodologies and possess deep market knowledge and software design expertise.Technology at BTG is one of the key pillars driving major transformations within the bank. Therefore, we continuously invest in the most modern tools and practices available.We value meritocracy and have a versatile, collaborative, and engaged team. We seek individuals with an ownership mindset who dream big and are passionate about learning and sharing knowledge.Your Daily Responsibilities:Automating and optimizing processes and analyses.Ensuring high availability of platforms by creating and evolving deployment processes.Developing software following agile methodologies and adhering to object-oriented and clean code practices.Creating algorithms and statistical models to enhance BTG's operations.Maintaining close relationships with business areas and other IT teams within the BTG Pactual Group.
About TruelogicTruelogic is a premier provider of nearshore staff augmentation services, proudly based in New York. For over 20 years, we have been delivering exceptional technology solutions to a diverse range of clients, from visionary startups to established industry leaders, assisting them in achieving their digital transformation goals.With a robust team of over 600 skilled technology professionals located in Latin America, we drive digital innovation by collaborating with U.S. companies on their most significant projects. From empowering Fortune 500 corporations to supporting emerging startups, our results are impactful and transformative.By applying for this position, you are taking the initial step towards joining a vibrant team that values your skills and aspirations. We are committed to aligning your capabilities with opportunities that promote remarkable career development and success while contributing to pivotal projects shaping the future.Our ClientOur client is a pioneering Fintech company dedicated to helping homeowners maximize their property's value. They provide an innovative alternative to traditional financing through Home Equity Investments (HEIs), enabling homeowners to access their equity without accruing monthly debt.Job SummaryAs a Senior Full-Stack Engineer, you will lead the technical direction and execution of high-impact projects that align with vital business objectives. You will collaborate closely with Product and Design teams to develop scalable, user-centric applications and remain actively involved throughout the entire development lifecycle, from architecture to deployment. Additionally, you will mentor and guide engineers while ensuring alignment, quality, and timely delivery across teams.
Are you eager to join one of the world's leading companies committed to transforming digital landscapes globally? Do you seek a role that offers opportunities for personal skill development and career advancement? The engineering team at Jitterbit is dedicated to the belief that the quality of our code mirrors our professional integrity. We are committed to creating an innovative product that ensures an exceptional user experience—one that is both rapid and reliable. As a pivotal member of our engineering team, you will collaborate with fellow engineers, product management, and operations to tackle complex challenges. You will have the opportunity to work alongside distinguished engineers and architects. Our workplace culture is dynamic, fast-paced, performance-driven, open, and collaborative. We continually push the boundaries of technology! With a distributed workforce, our culture is designed to facilitate effective remote work. We believe in attracting talent from wherever it exists. In this role, you will contribute to the design, development, and architecture of exciting new features for our diverse Cloud Application offerings. We are in search of a mid-level full stack engineer proficient in Angular, TypeScript, Node.js, CSS3, Nginx, Tomcat, Kafka, Elasticsearch, MySQL, Linux, Docker, and Kubernetes—just to name a few technologies utilized by our Cloud Apps team. You will take on full lifecycle responsibilities to create robust, scalable, and distributed systems that operate seamlessly 24x7x365. This position provides a chance for continuous learning as we explore new areas and technologies, further pushing the boundaries of our platform. This is a thrilling opportunity to work in a highly innovative environment as we continue to solidify our position as a market leader.
Join Bosch Group as an IoT Full Stack Developer Intern and immerse yourself in cutting-edge technology solutions. As part of our dynamic team, you will have the opportunity to work on innovative projects, enhancing your skills in full stack development, including both front-end and back-end technologies.This internship is an excellent chance to gain practical experience while contributing to impactful IoT applications that enhance efficiency and connectivity in various industries.
Join our dynamic team at Truelogic as a Senior Full-Stack Engineer specializing in .NET technologies. You will play a pivotal role in developing innovative solutions for GovTech and HR software, impacting how organizations manage their operations and workforce.
toloka-ai is hiring a Freelance Supply Chain Consultant - AI Trainer for remote, project-based assignments. This contract role is open to professionals living in Belo Horizonte, State of Minas Gerais, Brazil. Engagements are not permanent employment and are structured around specific projects supporting artificial intelligence development. Role overview This position draws on deep procurement and supply chain expertise to help test, evaluate, and improve AI systems used by technology companies. The work involves designing realistic disruption scenarios, defining expected results, and reviewing AI-generated recommendations for accuracy and business value. What you will do Create supply chain disruption scenarios based on real procurement and manufacturing challenges, such as supplier delays, quantity changes, logistics issues, or quality failures. Define expected outcomes and outline effective mitigation strategies for each scenario. Evaluate AI-generated responses and recommendations, checking for accuracy, completeness, and relevance to business needs. Assess outputs within ERP systems, including Microsoft Dynamics 365, Coupa, Jaggaer, and Ariba (SAP). Support structured data creation and validation tasks, following detailed guidelines. Requirements Minimum of 4 years’ hands-on experience in procurement, supply chain management, or purchasing, ideally within manufacturing. Strong knowledge of procurement workflows such as purchase orders, vendor management, inventory, and production planning. Practical experience with ERP platforms like SAP, Oracle, or Microsoft Dynamics 365. Ability to design and analyze supply chain disruption scenarios and propose mitigation strategies. Understanding of disruption types: delays, shortages, quality issues, and logistics challenges. Familiarity with Incoterms and transportation or logistics management. Knowledge of Bill of Materials (BOM) structures and production planning processes. Experience using supplier performance metrics such as OTIF, lead times, and quality scores. Strong analytical skills for evaluating AI outputs against business logic. Background in data validation, structured data entry, or annotation work. Excellent written English communication skills. How the process works Apply Pass qualifications Join a project Complete tasks Receive compensation Time commitment Projects typically require 10 to 20 hours per week during active phases. Actual workload may vary depending on project needs. Compensation Earn up to $50 per hour, depending on experience and the scope of each project.
Location: BrazilJob Mode: Full-timeWork Mode: Remote Role overview Encora is looking for a Senior Full Stack Engineer with expertise in the .NET ecosystem. This position centers on building scalable, secure, and high-performance SaaS applications. The work is fully remote within Brazil. What you will do Develop and implement features for SaaS products using C# and either Angular or React Troubleshoot issues and resolve technical challenges as they arise Contribute to system architecture and design decisions Participate in planning and support AI-powered workflows Requirements Strong proficiency in .NET technologies Experience with C# Skilled in either Angular or React Background in developing SaaS applications Ability to work independently from a remote location in Brazil
We invite you to submit your CV in English, highlighting your proficiency in the language.At Mindrift, we specialize in connecting talented professionals with project-based opportunities in artificial intelligence for leading technology firms. Our focus is on testing, evaluating, and enhancing AI systems. This role is project-based and does not constitute permanent employment.Role OverviewEach project presents distinct tasks, where contributors may be expected to:Create prompts that effectively challenge AI systems;Assess AI-generated outputs for accuracy, underlying assumptions, and logical consistency;Enhance AI reasoning to ensure alignment with foundational principles and established standards;Utilize structured scoring criteria to evaluate multi-step problem-solving capabilities.Ideal Candidate ProfileThis position is tailored for legal consultants or attorneys experienced in US law who are interested in part-time, non-permanent engagements. Candidates should ideally possess:A degree in law (Bachelor, J.D., LLM, FLLM) recognized in the US legal framework;A minimum of 2 years of legal practice within the US jurisdiction;Exceptional written English skills (C1/C2 level);A reliable internet connection.Application ProcessTo apply, please complete the following steps: Apply → Successfully complete the qualifications → Join a project → Execute assigned tasks → Receive payment.Project CommitmentDuring active phases of the project, contributors can expect to dedicate approximately 10 to 20 hours per week, contingent upon project demands. Note that this is an estimate and not a guaranteed workload.Compensation DetailsFor this position, contributors may earn up to $18 per hour, depending on their contribution level and pace. Compensation varies based on the specific project scope, complexity, and expertise required. Please be aware that other projects on our platform may offer differing compensation levels based on their unique requirements.
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