Freelance Mechanical Engineer & Python Specialist - AI Training

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 …

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.

Join Toloka AI as a Freelance Data Scraping Engineer and contribute to innovative projects in the field of data extraction and analysis. In this role, you will leverage your Python skills to develop robust scraping tools and gather valuable data from various online sources.

Join Farfetch, a premier global marketplace that revolutionizes the luxury fashion sector by connecting customers across 190 countries to an extensive selection of items from over 1,400 prestigious brands and boutiques worldwide. We provide an unparalleled shopping experience, making luxury accessible to all.OUR TECHNOLOGYAt Farfetch, we are dedicated to developing the technology that drives our global luxury fashion platform. Our modular end-to-end technology framework is specifically designed to enhance the luxury fashion ecosystem worldwide, tackling complex challenges with enthusiasm. We embrace innovation, with the autonomy to make a significant impact for our customers around the globe.LOCATION: PORTOOur office is situated in Porto, Portugal, within a vibrant business district that fosters a dynamic atmosphere. Here, our team members can engage and network with a thriving community of tech professionals.THE POSITIONWe are seeking a Frontend Engineer to join our SEO team, positioned at the intersection of our Engineering and Growth Marketing departments. In this role, you will develop and optimize front-end solutions to enhance organic visibility, performance, and user experience.You will be responsible for implementing our technical SEO initiatives, improving crawlability, indexability, rendering, and site speed across our platform. Additionally, you will assist in creating automation pipelines and establishing SEO testing frameworks to validate outcomes and drive quantifiable growth.Utilizing React and the latest web technologies, you will ensure that all frontend experiences are fast, accessible, and scalable.

Join our innovative team at Devexperts as a Backend Engineer, where your skills will contribute to one of the premier trading platforms in the USA, catering to over 200,000 online users daily across multiple devices. Our advanced infrastructure supports over 1 million requests per second, ensuring seamless operations. Your role will encompass the backend services that manage crucial trading processes, including order issuance, validation, routing, execution, option price calculation, and reconciliation. We emphasize high performance, low latency, and robust fault tolerance in our development practices. Through meticulous code reviews and various testing methodologies, we uphold the highest code quality standards.As a Backend Engineer, you will take ownership of backend services, infrastructure, and data systems, tackling complex scalability challenges while deepening your expertise in U.S. financial systems. Your contributions will have a direct impact on products that serve millions.

Join Sword Health as a Senior iOS Engineer and be a part of our mission to revolutionize healthcare. Our AI Care platform is transforming the healthcare landscape, making quality care accessible anytime and anywhere. As a key member of our technology team, you will leverage your expertise in iOS development to enhance our innovative solutions across various health domains, including pain management, women's health, movement health, and mental health. Help us empower over 700,000 members globally with your skills and contribute to significant cost savings in healthcare.

Join Pixelmatters, a leading digital product studio. Our talented team of strategists, designers, and engineers is committed to crafting exceptional digital experiences.Our mission is to empower businesses to reach their full potential by delivering high-quality digital products while nurturing meaningful relationships. We aspire to create a world where outstanding user experiences become the standard, inspiring both businesses and individuals to excel.We are seeking a meticulous, adaptive Senior Full-Stack Engineer to join our dynamic team. You will play a crucial role in designing and delivering scalable, high-performance digital products across the entire stack. Your deep technical expertise and strong sense of ownership will contribute to building reliable solutions and upholding high engineering standards.In this role, you will focus on designing, implementing, and evolving full-stack architectures utilizing NestJS and React, deployed on AWS. You will engage in technical discussions to ensure the solutions we create are secure, scalable, and maintainable. Your involvement will span all phases of product development, from front-end implementation and API design to database modeling, infrastructure, and deployment workflows. While your primary focus will be on back-end development, your contributions across the full stack will be essential for delivering the product end-to-end.Your daily tasks will include designing scalable front-end and back-end architectures, developing and optimizing APIs, implementing complex UI components, defining database schemas, enhancing CI/CD pipelines, reviewing code, and proactively identifying performance, reliability, and security enhancements across the system.

Join our innovative team at welocalize as a Senior Prompt Engineer for Project Lion. This role is perfect for individuals who thrive in a dynamic environment, leveraging cutting-edge technology to develop and optimize prompts for AI applications. As part of this position, you will work closely with cross-functional teams to understand requirements and deliver high-quality solutions.

Join our dynamic team at Devoteam as a Quality Assurance Engineer in Porto. In this pivotal role, you will be responsible for ensuring the quality and performance of our innovative software solutions. Collaborate closely with our software development team to create and implement testing strategies that maintain high standards and enhance user experience.As a QA Engineer, you will engage in both manual and automated testing processes, identifying bugs and issues before product releases. Your expertise will be critical in driving continuous improvement and ensuring our products meet the demands of our clients.

Sword Health is looking for a Senior Data Platform Engineer to help build and refine the company’s data infrastructure in Porto. This position centers on designing, developing, and improving data platforms that support digital health solutions. Role overview This role focuses on creating data systems that are secure, scalable, and reliable. The Senior Data Platform Engineer will work closely with colleagues from different teams to ensure the data platform meets the needs of the organization and supports ongoing healthcare projects. What you will do Design and develop data platforms to support health technology initiatives Optimize existing data infrastructure for performance and security Collaborate with cross-functional teams to align data solutions with business goals Impact Your work will help Sword Health use data more effectively to advance healthcare solutions and support the company’s mission to transform patient care.

Join Ajax Systems, a leading international technology firm and Europe’s largest security systems manufacturer, as a Pre-Sales Engineer in Porto. With over 4.5 million end users and 330K professional users across more than 180 countries, we deliver comprehensive solutions for safeguarding homes and businesses of all sizes. Our diverse product portfolio encompasses 280 advanced devices for intrusion protection, video surveillance, fire safety, and automation. As part of our global business development team, you will collaborate with local experts who understand unique market dynamics and contribute to our mission of enhancing security standards globally. Ajax has been recognized in prestigious exhibitions and has received numerous industry awards, making us a trusted name in security solutions. We pride ourselves on our commitment to sustainability, with production facilities in Ukraine, Turkey, and Vietnam adhering to ISO 14001 standards. Our journey is one of resilience and innovation, driven by a passion for creating top-tier security and automation devices.

We are seeking a Software Engineer (Java) to become a vital part of a dynamic project with one of our esteemed clients. Our client, a reputable company with over a decade of experience, is a member of an international group and boasts a diverse product portfolio spanning critical sectors such as Accounting, Compliance, and Healthcare.In this role, you will engage in the development of an internal product, specifically an invoicing solution, focusing on enhancing its digital functionalities and ensuring seamless integration with various standards.This position entails full-stack development, granting you complete ownership from product design and addressing customer requirements to overseeing cloud infrastructure and production operations—all within a fast-paced, agile framework.Key Responsibilities: Develop and architect scalable, high-performance, and maintainable software solutions. Participate in backend development, infrastructure automation (IaC), and CI/CD pipelines. Uphold code quality and reliability through rigorous testing, refactoring, and continuous enhancement. Collaborate with stakeholders, product managers, designers, and fellow engineers to conceptualize and deliver innovative features. Transform business requirements into impactful technical solutions. Engage actively in agile planning and Scrum ceremonies. Mentor and guide junior developers, fostering best practices and technical excellence.Requirements: Proficient in Java development, particularly with modern frameworks like Spring Boot; experience with legacy Java frameworks is advantageous. Comprehensive knowledge of API design (REST, OpenAPI, GraphQL) and microservices architecture. Practical experience with message queuing systems such as AWS SQS/SNS and GCP Pub/Sub. Expertise in working with databases, including both SQL (Oracle, PostgreSQL) and NoSQL solutions. Background in constructing and managing CI/CD pipelines utilizing tools like GitLab, Jenkins, and bash scripting. Familiarity with standard development tools — Git, Maven, and IntelliJ IDEA. Hands-on experience with cloud platforms (AWS, GCP), Kubernetes, and serverless architectures. Significant experience with Infrastructure as Code tools such as Terraform, AWS CDK, Pulumi, Ansible, and Helm.

Join Devoteam as a Data Engineer in the banking sector, where you will play a pivotal role in transforming data into actionable insights. You will collaborate with cross-functional teams to design, build, and maintain data pipelines, ensuring seamless data flow and integrity. Your expertise will help drive data-driven decision-making and enhance our clients' operational efficiency.

Join our dynamic team at Farfetch as a Back End Software Engineer, where you will play a pivotal role in building and optimizing our digital platforms. Your expertise will help enhance the shopping experience for customers worldwide. We are looking for a passionate engineer who thrives in a fast-paced environment and is eager to tackle complex challenges with innovative solutions.

At Sword Health, we are redefining the future of healthcare by transitioning from a human-first model to an innovative AI-first approach through our cutting-edge AI Care platform. Our mission is to democratize access to exceptional healthcare services, available at any time and from anywhere, while significantly lowering costs for payers, self-insured employers, national health systems, and various healthcare organizations. Initially focused on revolutionizing pain management, we have successfully expanded our offerings to include women's health, movement health, and more recently, mental health. Since 2020, over 700,000 members across three continents have engaged in 10 million AI sessions, enabling our 1,000+ enterprise clients to save over $1 billion in unnecessary healthcare expenditures. With 42 clinical studies backing our methods and more than 44 patents secured, Sword Health has garnered over $500 million in funding from prominent investors such as Khosla Ventures, General Catalyst, Transformation Capital, and Founders Fund. Discover more at www.swordhealth.com.As a member of our Applied AI Team, you will spearhead the development of AI and machine learning solutions that deliver personalized clinical care on a large scale. Your contributions will encompass the entire AI treatment management spectrum, from initial assessments to intervention selection and progress tracking across diverse therapeutic areas. We're also building Phoenix, our AI Care Specialist designed to maintain ongoing dialogues with patients, providing essential clinical guidance throughout their recovery journey.This role encompasses the complete AI stack: prompt engineering, RAG implementations, model fine-tuning, and agent-based workflows. We utilize both generative AI and traditional machine learning methodologies tailored to the demands of specific challenges. All our projects are aimed at enhancing digital care quality and accessibility to unprecedented levels.

At Sword Health, we're revolutionizing healthcare by transitioning from a human-first approach to an AI-first model through our innovative AI Care platform. Our mission is to make premium healthcare accessible anytime, anywhere, while drastically lowering costs for payers, self-insured employers, national health systems, and various healthcare organizations. We initiated our journey by redefining pain management with AI and have since broadened our focus to women's health, movement health, and, most recently, mental health. Since 2020, over 700,000 members across three continents have participated in more than 10 million AI sessions, helping our 1,000+ enterprise clients save over $1 billion in avoidable healthcare expenditures. Supported by 42 clinical studies and more than 44 patents, Sword Health has successfully secured over $500 million from prestigious investors, including Khosla Ventures, General Catalyst, Transformation Capital, and Founders Fund. Discover more at www.swordhealth.com.As a Senior AI Infrastructure Engineer at Sword Health, you will take charge of the infrastructure that operationalizes our AI models. Your responsibilities will include optimizing large language model (LLM) inference, deploying real-time voice AI agents, and scaling GPU clusters that manage millions of sessions. Your contributions will directly power the AI Care platform that is revolutionizing healthcare on a global scale.You will work at the nexus of machine learning and infrastructure, designing systems that facilitate real-time computer vision for movement analysis, support large language models for conversational AI, and enable low-latency voice interactions for AI agents. You will ensure our models perform at the speed and scale our users anticipate. This role transcends traditional DevOps; you will engage with AI-specific challenges such as inference optimization, real-time video processing, model serving at scale, and GPU workload orchestration.If you are driven by a passion for enhancing AI infrastructure performance and seek to make a direct impact on health outcomes in a purpose-driven environment, we would be thrilled to welcome you to our team.

Join our dynamic team at Devoteam as a Senior Software Engineer specializing in Retail & E-Commerce. In this role, you will leverage your expertise to design, develop, and implement innovative software solutions that enhance the customer experience and drive business growth.As a key member of our development team, you will collaborate with cross-functional teams to deliver high-quality software products on time and within budget. Your contribution will be crucial in shaping our digital landscape and ensuring the scalability and performance of our applications.

Sword Health is revolutionizing the healthcare landscape by transitioning from a human-centric model to an AI-driven approach with our cutting-edge AI Care platform. Our mission is to provide world-class healthcare that is accessible anytime, anywhere, while effectively minimizing costs for payers, self-insured employers, national health systems, and various healthcare organizations. Beginning with a transformative approach to pain management, we have expanded our services to encompass women’s health, movement health, and more recently, mental health. Since our inception, we have empowered over 700,000 members across three continents, facilitating over 10 million AI-driven sessions and helping our 1,000+ enterprise clients save upwards of $1 billion in unnecessary healthcare expenditures. Supported by 42 clinical studies and over 44 patents, we have successfully raised more than $500 million from prominent investors such as Khosla Ventures, General Catalyst, Transformation Capital, and Founders Fund. Discover more about our innovative solutions at www.swordhealth.com.

At Zego, we're transforming the world of motor insurance by empowering good drivers with an affordable and straightforward insurance experience. Since our inception in 2016, our mission has been to redefine the insurance landscape, making it accessible and fair for everyone.We cater to a diverse range of customers, including van drivers, gig workers, and everyday car drivers. Our commitment to our customers drives us to innovate and improve continuously.Having sold millions of policies and raised over $200 million in funding, we're on an exciting journey and are just getting started.Who We're SeekingWe are in search of a talented Lead Machine Learning Engineer to join our dynamic ML Platform team. You will take ownership of our platform, tooling, and infrastructure, facilitating the deployment and monitoring of machine learning models at scale. Your expertise will play a critical role in enhancing our pricing models and expanding into telematics and other business areas.As part of a small team under the guidance of the Head of Machine Learning Engineering, you will have a significant opportunity to shape the future of machine learning at Zego.Key ResponsibilitiesDesign and implement comprehensive ML systems, from feature engineering to model training, deployment, and monitoring.Maintain and enhance the ML platform and tools to ensure efficient and reliable model delivery.Develop and refine model lifecycle tools, including deployment, monitoring, alerting, and retraining mechanisms across various domains.Collaborate closely with Data Scientists and Product teams to convert business challenges into well-defined ML solutions.Effectively communicate complex technical concepts to both technical and non-technical stakeholders.

Farfetch stands as a premier global marketplace in the luxury fashion sector, seamlessly connecting customers across more than 190 countries with exquisite items sourced from over 50 nations and 1,400 prestigious brands, boutiques, and department stores. This unique platform offers an unparalleled shopping experience, granting access to an extensive selection of luxury goods worldwide. TECHNOLOGYOur mission is to craft comprehensive products and technologies that elevate the e-commerce experience for luxury consumers globally. We delve into understanding our customers' motivations and needs, designing and validating hypotheses, and ultimately delivering industry-leading experiences. PORTOLocated in a vibrant business hub near Porto in northern Portugal, our office fosters a dynamic and inviting atmosphere, encouraging our team members to connect and network with a diverse community of tech professionals. THE ROLEAs a vital member of our Data team, you will implement techniques to enhance data reliability and quality. This involves merging raw information from diverse sources and developing architectures that facilitate data extraction and transformation for effective data modeling. Your contributions will play a crucial role in delivering an exceptional customer experience and driving the growth of Farfetch. You will collaborate closely with the Data Engineering team to maintain and optimize our data architecture and tools.