Senior Full-Stack Developer (m/f/d)

Engage in the development and ongoing enhancement of a customizable white-label platform tailored for marketing and e-commerce websites.Integrate new functionalities on both the frontend and backend, alongside refactoring and enhancing existing solutions.Contribute actively throughout the software development lifecycle within an agile, cross-functional produ…

Please submit your CV in English and indicate your English proficiency level. Mindrift connects skilled professionals with project-based AI work for leading technology companies. Projects focus on assessing, evaluating, and improving AI systems. Participation is on a project basis and does not constitute permanent employment. Role overview This freelance, remote position is for a Material Scientist with Python expertise to help train AI systems. Work centers on developing and validating engineering challenges, with projects varying in scope and focus. Contributors may: Create original materials and engineering problems based on real-world workflows Design problems that involve Python programming for calculations and simulations Develop computationally intensive problems requiring numerical methods or iterative solutions Build challenges related to system design, optimization, and analysis Base problems on genuine research questions or practical engineering scenarios Validate solutions using Python and standard engineering libraries Document problem statements with clear, accurate answers Requirements Degree in Material Science or a related field Proficiency in Python for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, Stata, or domain-specific libraries is also accepted At least 2 years of professional experience (applied, research, or teaching) Strong understanding of practical engineering constraints and approximations Excellent written English (C1 level or above) Project process Apply Pass qualifications Join a project Complete assigned tasks Receive payment Time commitment Active project phases usually require about 10–20 hours per week. Actual workload depends on project needs and is not guaranteed. Compensation Contributors may earn up to $45 per hour, depending on expertise and task completion speed. Pay rates vary by project according to complexity, scope, and required skills. Other projects on the platform may offer different compensation based on their requirements.

Join fioneer as a Lending Solutions Expert, where you will play a pivotal role in shaping the future of lending technology. You will be responsible for delivering innovative lending solutions that empower our clients to achieve their goals. Your expertise will contribute to the development and implementation of cutting-edge financial products and services.

About the Role REWE International Dienstleistungsgesellschaft mbH is looking for a Senior Backend Developer to strengthen our eCommerce Checkout and Order Services team in Wien. This position focuses on building and improving backend systems that support checkout processes and order management for our online customers. What You Will Do Develop and maintain backend services for eCommerce checkout and order workflows Work closely with other engineers to design solutions that improve the user experience Contribute ideas to streamline and optimize our checkout processes Location This role is based in Wien.

Please submit your CV in English and indicate your level of English proficiency.Mindrift is a dynamic platform connecting skilled professionals with project-based AI opportunities in leading tech companies. We focus on testing, evaluating, and enhancing AI systems, providing contributors a chance to work on innovative projects without the commitment of permanent employment.Opportunity OverviewEach project presents unique challenges, and contributors may be involved in the following:Creating original materials that simulate real-world engineering workflows;Developing engineering problems that require Python programming for calculations and simulations;Ensuring the problems are computationally intensive, necessitating numerical methods or iterative solutions;Designing problems related to system design, optimization, and analysis;Grounding problems in actual research challenges or practical engineering applications;Validating solutions through Python using standard engineering libraries;Clearly documenting problem statements and providing verified solutions.QualificationsWe are seeking material scientists and engineers with Python experience who are interested in part-time, project-based roles. Ideal candidates will possess:A degree in Material Science or a related discipline;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other programming languages is acceptable;At least 2 years of professional experience, including applied, research, or teaching roles;A strong grasp of practical engineering constraints and approximations;Excellent written English skills (C1+ level).Application ProcessApply → Pass qualification(s) → Join a project → Complete assigned tasks → Receive compensation.Project CommitmentTasks for this project are estimated to require approximately 10-20 hours per week during active phases, depending on project demands. This estimate is not a guaranteed workload and applies only while the project is active.CompensationContributors can earn up to $45 per hour, depending on their level of expertise and contribution speed. Please note that compensation may vary across different projects based on scope, complexity, and required skills.

dreessommerse is hiring an Expert in Public Procurement Procedures and Project Acquisition. This position is available full-time or part-time in Salzburg. What you will do Oversee procurement processes for a variety of projects, ensuring each stage runs smoothly and meets all requirements Advise clients on public procurement rules, emphasizing compliance and efficient workflows Collaborate with colleagues from different departments to support project goals Carry out market research to shape effective procurement strategies Create methods to secure funding for new projects Role impact This role plays a key part in guiding clients through public sector procurement. By focusing on regulatory alignment and practical solutions, you help projects progress without unnecessary delays.

We are seeking a passionate and skilled Senior .NET Developer to join our client's dynamic development team within an internationally renowned company in the medical technology sector. This position offers an exciting opportunity to contribute to the development of cutting-edge web applications.Engage in the creation and enhancement of modern web applications using ASP.NET Core and Blazor WebAssembly.Design and implement backend functionalities adhering to Clean Architecture principles.Develop, maintain, and document RESTful APIs.Produce automated unit tests to ensure high code quality.Conduct code reviews to uphold quality standards and foster knowledge sharing within the team.Collaborate closely with the testing team throughout the development and release phases.

Toloka AI seeks a Computer Science Specialist with advanced Python skills to join the Mindrift team. This remote role is open to candidates based in Austria. The group develops practical AI solutions aimed at solving real-world problems. Role overview This position centers on designing and building AI-driven projects. Collaboration with subject matter experts is a key part of the work, ensuring that each project addresses tangible challenges across different fields. What you will do Partner with experts to plan and develop AI projects Use Python to build, improve, and maintain AI models and supporting tools Help create solutions that tackle real issues in a variety of domains Requirements Solid foundation in computer science principles Extensive hands-on experience with Python Genuine interest in artificial intelligence and its practical uses Ability to work effectively in a remote, distributed team

Project OverviewWe are currently seeking a seasoned professional (m/w/d) to spearhead the integration of our Company Service Portal (USP) with existing platforms for a time-limited project. We are looking for an individual who has successfully executed similar integrations in the past and can take charge of both the technical and functional steering of the project.

Please submit your CV in English and indicate your level of English proficiency.Mindrift connects talented professionals with project-based AI opportunities for leading technology companies, focusing on the testing, evaluation, and enhancement of AI systems. This is a project-based engagement, not a permanent position.Opportunity OverviewEach project presents distinct challenges, and contributors may be involved in the following:Design innovative computational engineering problems that mirror real-world engineering workflows;Develop problems that require Python programming for engineering calculations and simulations;Ensure tasks are computationally intensive, demanding numerical methods or iterative solutions;Formulate problems centered on system design, optimization, and analysis;Base challenges on authentic research issues or applicable scenarios from engineering practices;Validate solutions using Python along with standard engineering libraries;Clearly document problem statements and provide verified correct answers.Qualifications We SeekThis role is ideal for engineers proficient in Python and looking for part-time, project-based work. The preferred candidates 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, or any programming language can be considered equivalent;A minimum of 2 years of professional experience, including applied, research, or teaching backgrounds;A solid understanding of practical engineering constraints and approximations;Strong written English skills (C1+ or equivalent);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are highly advantageous.How to ParticipateApply → Pass qualifications → Join a project → Complete assigned tasks → Receive paymentProject Time CommitmentFor this opportunity, tasks are estimated to require approximately 10–20 hours per week during active project phases. Please note that this is an estimate and does not guarantee a specific workload.CompensationParticipants can earn up to $50 per hour, depending on their expertise and contribution pace. Compensation may vary across projects based on scope, complexity, and required skills. Please be aware that other projects on the platform may offer different earning levels based on their specific requirements.

About SentryAt Sentry, we're on a mission to revolutionize software development by enabling developers to create high-quality software more efficiently. Our performance and error monitoring tools are trusted by over 100,000 organizations, including industry leaders like Disney, Microsoft, and Atlassian.With a solid backing of over $217 million in funding, we foster a hybrid work environment that encourages collaboration and innovation. Join us in building the next generation of software monitoring tools and rediscover the joys of technology.Join Us in Shaping Mobile App MonitoringThis is not just another engineering position. As part of our Mobile SDK team, you'll help create cutting-edge tools for developers, managing over a billion events daily. We are in search of a skilled Senior iOS SDK Engineer passionate about tackling complex challenges using the latest technology.You will explore Apple's advanced technologies, including SwiftUI and modern concurrency, while developing innovative features like Session Replay and next-generation performance monitoring.Your ResponsibilitiesAs the architect of our iOS SDK, you will oversee its evolution from foundational architecture to user experience. You will be instrumental in designing scalable, high-quality APIs and setting the strategic direction for mobile at Sentry. Your expertise will guide our teams in overcoming intricate customer challenges.Why You Will Thrive HereWe seek individuals who are not only skilled but also enthusiastic about crafting elegant, user-friendly tools that other developers will love. Contribute significantly to a vital open-source project and witness the immediate effects of your efforts in our dynamic setting. You will collaborate with thoughtful and dedicated engineers committed to a culture of excellence and continuous growth.

Please submit your CV in English and indicate your English proficiency level. toloka-ai, in partnership with Mindrift, connects professionals to project-based freelance roles focused on testing, evaluating, and improving AI systems for leading technology companies. All roles are freelance and project-based, not permanent employment. Role overview This Freelance Data Science Engineer position centers on designing and validating advanced computational problems for real-world analytics. Projects span sectors such as telecom, finance, government, e-commerce, and healthcare. The work is fully remote and open to candidates based in Austria. What you will do Design computational data science problems that reflect actual business workflows across multiple industries. Develop solutions in Python using libraries such as Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, and Seaborn. Create complex, algorithmic problems that require computational rather than manual solutions. Build data processing challenges involving statistical analysis, feature engineering, predictive modeling, and insight extraction. Ensure problems are deterministic and reproducible by avoiding randomness or using fixed seeds. Base challenges on real business scenarios, including customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency. Design problems that cover the full data science pipeline: data ingestion, cleaning, exploratory analysis, modeling, validation, and deployment considerations. Include big data processing cases that require scalable computation. Validate solutions in Python using standard libraries and statistical methods. Document each problem with clear business context and verified answers. Requirements Minimum 5 years of hands-on data science experience with measurable business impact. Portfolio of completed projects or publications demonstrating real-world problem-solving. Advanced Python programming skills for data science, including pandas, numpy, scipy, scikit-learn, and statsmodels. Strong background in statistical analysis and machine learning, with deep understanding of algorithms and methodologies. Expertise in SQL and database operations for data manipulation and analysis. Familiarity with Generative AI, such as large language models, retrieval-augmented generation, prompt engineering, and vector databases. Knowledge of MLOps practices and model deployment workflows. Experience with frameworks like TensorFlow, PyTorch, and LangChain. Excellent written English skills at C1 level or higher. Application process Apply Pass qualifications Join a project Complete tasks Receive compensation

Join our dynamic team at vusiongroupsa as a Support Expert. In this role, you will be responsible for providing exceptional after-sales migration and support services to our valued clients. You will collaborate closely with cross-functional teams to ensure seamless transitions and address customer inquiries effectively.

dreessommerse is looking for an Expert in Public Procurement Procedures & Project Acquisition to join the team in Innsbruck. The position is open to both full-time and part-time candidates, offering flexibility to suit different schedules. Key responsibilities Oversee and guide public procurement processes, ensuring all procedures align with regulatory standards. Contribute to project acquisition activities, helping the organization secure new contracts and opportunities. Collaborate with colleagues across departments to maintain compliance with procurement requirements. Work arrangement This role allows for either full-time or part-time work, depending on availability and preference.

Join our innovative team at CHECK24 as a Senior Full-Stack Java Developer. In this pivotal role, you will leverage your expertise in Java development to create scalable and robust applications that enhance user experience. You will work collaboratively with cross-functional teams to design and implement cutting-edge solutions that meet our clients' needs.

This freelance Data Scientist (Python & SQL) role with toloka-ai is project-based and remote, open to candidates located in Austria. Mindrift connects experienced data science professionals with assignments that focus on evaluating and improving AI systems for major technology companies. Work is assigned per project and is not a permanent position. Key Responsibilities Design computational data science challenges that mirror real-world analytical scenarios in sectors such as telecommunications, finance, government, e-commerce, and healthcare. Develop problems requiring Python programming, using libraries like Pandas, Numpy, Scipy, Scikit-learn, Statsmodels, Matplotlib, and Seaborn. Ensure problems are sufficiently complex to prevent manual solutions within days or weeks. Create tasks involving advanced reasoning in data processing, statistical analysis, feature engineering, predictive modeling, and extracting insights. Produce deterministic and reproducible problems, using fixed seeds for any randomness. Base challenges on business cases such as customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency. Cover the full data science workflow: data ingestion, cleaning, exploratory analysis, modeling, validation, and deployment considerations. Include big data processing scenarios that require scalable solutions. Validate solutions using Python and standard statistical techniques. Document each problem with clear business context and provide verified, correct answers. Requirements At least five years of hands-on data science experience with measurable business impact. Portfolio of completed projects or publications demonstrating real-world problem-solving skills. Advanced Python programming skills for data science, including Pandas, Numpy, Scipy, Scikit-learn, and Statsmodels. Strong knowledge of statistical analysis and machine learning algorithms and applications. Expertise in SQL and database operations for data manipulation and analysis. Familiarity with Generative AI technologies such as LLMs, RAG, prompt engineering, and vector databases. Understanding of MLOps and model deployment workflows. Experience with frameworks like TensorFlow, PyTorch, or LangChain. Excellent written English (C1 level or higher). Application Process Submit your CV in English and indicate your English proficiency level. Complete the qualification process. Join a project upon acceptance. Work on assigned tasks. Receive payment after task completion. Please submit your CV in English and indicate your English proficiency level.

We invite you to submit your CV in English, including your English proficiency level.Mindrift specializes in connecting talented professionals with project-based AI opportunities from leading tech organizations. Our focus is on the testing, evaluation, and enhancement of AI systems. Please note that this is a project-based opportunity, not permanent employment.Key Responsibilities:Design innovative computational physics problems that emulate authentic physics research workflows.Develop challenges that require Python programming for resolution (utilizing Numpy, SciPy, Sympy).Ensure problems are computationally intensive, taking days or weeks to solve manually.Create problems that necessitate complex reasoning across mechanics, electromagnetism, thermodynamics, and quantum mechanics.Formulate problems based on real-world research challenges or practical applications in the field of physics.Validate solutions through Python using standard physics simulation libraries.Clearly document problem statements and provide verified correct answers.Qualifications:This role is ideal for physicists with Python experience who are looking for part-time, non-permanent projects. The preferred candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or a closely related field.Proficiency in Python for numerical validation (knowledge of MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other domain-specific libraries is acceptable).A minimum of 2 years of professional experience in applied physics, research, or teaching.Experience with numerical simulation methods.Ability to craft problems that reflect genuine physics research workflows.Creative problem-solving skills across diverse areas of physics.Familiarity with physics modeling and approximation techniques.Strong written English skills (C1 or higher).Application Process:Apply → Pass qualification(s) → Join a project → Complete tasks → Get compensated.Project Expectations:For this project, tasks are anticipated to require approximately 10–20 hours per week during active phases, contingent upon project demands. This estimate is not a guarantee of workload and only applies while the project is ongoing.Compensation:Contributors can earn up to $45 per hour, depending on their level of expertise and contribution pace. Compensation varies across projects based on scope, complexity, and required expertise. Be aware that other projects on the platform may offer different pay scales based on their specific requirements.

Auto1 Group is looking for an Automobile Expert / Damage Manager to join the Internal Service team in Wien. This position centers on supporting customers by assessing vehicle damage and coordinating resolutions. Role overview This role involves evaluating vehicle conditions, determining the extent of damage, and ensuring repairs meet company standards. Collaboration with other teams is key to maintaining quality and safety across the vehicle fleet. Key responsibilities Assess damage to vehicles and document findings Coordinate with internal teams to arrange repairs and follow up on progress Support customers by providing clear information about assessments and next steps Help maintain high standards for vehicle quality and safety Requirements Experience with vehicle assessment or damage management is helpful Strong communication skills and a collaborative approach Attention to detail and commitment to quality

Wrisk is redefining the insurance landscape for today's digital-savvy consumers, driven by the belief that insurance should be straightforward, transparent, and personalized. The innovative platform developed by Wrisk merges exceptional customer experiences, cutting-edge technology, insurance expertise, and a distinctive distribution approach tailored for the automotive sector. Having already crafted unique insurance experiences in the UK for prestigious brands such as BMW, MINI, Volvo, Jaguar, and Land Rover, Wrisk is now expanding its platform capabilities to explore new markets, initiatives, and territories.We seek a skilled Software Developer specializing in Kotlin, TypeScript, and React.js to contribute to the evolution of our insurance platform as we broaden our offerings to encompass new products, partners, and regions. In this role, you will be an integral member of a small but highly talented cross-functional team comprising software engineers, designers, insurance specialists, and finance professionals. You will have a direct impact on the platform architecture and strategy, taking ownership of your contributions. As a dynamic startup, you will thrive in a fast-paced environment, engaging with various facets of the business domain and technical stack.

We invite you to submit your CV in English, along with your English proficiency level.At Mindrift, we bridge the gap between specialists and project-based AI opportunities offered by leading technology companies, with a focus on evaluating, testing, and enhancing AI systems. Please note, this role is project-based and does not involve permanent employment.Opportunity Highlights:Each project entails distinct tasks, and contributors may:Craft innovative computational data science problems that mirror real-world analytical workflows across sectors such as telecom, finance, government, e-commerce, and healthcare.Develop challenges requiring Python solutions utilizing libraries like Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, and Seaborn.Ensure that problems are computationally demanding and cannot be manually resolved within a reasonable timeframe (days/weeks).Formulate problems that necessitate complex reasoning chains in areas like data processing, statistical analysis, feature engineering, predictive modeling, and insight extraction.Produce deterministic problems with reproducible outcomes, avoiding stochastic elements unless fixed random seeds are provided for exact replication.Base problems on actual business challenges, including customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency.Design comprehensive problems that encompass the entire data science pipeline (data ingestion → cleaning → exploratory data analysis → modeling → validation → deployment considerations).Integrate big data processing scenarios that require scalable computational techniques.Validate solutions utilizing Python alongside standard data science libraries and statistical approaches.Clearly document problem statements within realistic business contexts and provide verified correct answers.What We Are Looking For:This opportunity suits Data Science specialists with expertise in Python who are open to part-time, non-permanent projects. Ideally, candidates will possess:5+ years of hands-on data science experience demonstrating tangible business impact.A portfolio of completed projects and publications that showcase real-world problem-solving capabilities.Proficiency in Python programming for data science (Pandas, Numpy, Scipy, Scikit-learn, Statsmodels).Advanced skills in statistical analysis and machine learning, with a deep understanding of algorithms, methods, and their practical applications.Expertise in SQL and database operations for data manipulation and analysis.Experience with Generative AI technologies (LLMs, RAG, prompt engineering, vector databases).Familiarity with MLOps practices and model deployment workflows.Knowledge of modern frameworks such as TensorFlow, PyTorch, and LangChain.Exceptional written English skills (C1+).How the Process Works:Apply → Pass qualifications → Join a project → Complete tasks → Get compensated.