Freelance Engineer - Quality Assurance Specialist

Key Responsibilities (Project-dependent):Support quality assurance processes in manufacturing companiesEnhance quality metricsAssist in the introduction of new projectsConduct supplier quality assurance and auditsCoordinate failure analysis, problem-solving, and corrective actionsMaintain communication between production, engineering, and clientsOptimize pro…

We are in search of an exceptionally talented QA Engineer to become a vital part of our Brand Experience (BX) team. This position embraces a comprehensive approach to Quality Assurance, encompassing everything from functional testing to automation engineering. Your responsibilities will include designing and executing test cases that range from manual testing to developing end-to-end and integration tests using our test automation framework. In this role, writing and maintaining automated tests is crucial, but it’s just one facet of the position. You will have the opportunity to contribute to the evolution of our automation frameworks, enhance CI/CD processes, and influence quality standards across multiple brands. There is significant potential for professional growth in these areas over time, with increasing ownership and impact as you progress within the team. Collaboration is key; you will work closely with Developers, Tech Leads, Architects, and Product teams to foster a robust Quality Engineering culture. This position is ideal for QA engineers who wish to understand systems in their entirety, empathize with end-users, and drive quality across all aspects. If you have a passion for problem-solving, automation, and thrive in a modern engineering environment, this is the challenge you've been looking for.

Join our team as a Senior Data Engineer, where you will play a pivotal role in building and managing scalable data ingestion and Change Data Capture (CDC) capabilities on our Azure-based Lakehouse platform. Your expertise will drive our engineering maturity as we deliver ingestion and CDC preparation through Python projects and reusable frameworks. We are seeking a professional who applies best software engineering practices, including clean architecture, rigorous testing, code reviews, effective packaging, CI/CD, and operational excellence.Our platform emphasizes batch-first processing, allowing for the landing of streaming sources in their raw form while processing them in batch. We are selective in our evolution towards streaming as necessary.As part of the Common Data Intelligence Hub, you will collaborate closely with data architects, analytics engineers, and solution designers to create robust data products and ensure governed data flows across the enterprise.Your team is responsible for end-to-end ingestion and CDC engineering, including design, build, operation, observability, reliability, and reusable components.You will contribute to the development of platform standards, including contracts, layer semantics, and readiness criteria.While you will not primarily manage cloud infrastructure provisioning, you will work with the platform team to define requirements, review changes, and maintain deployable code for pipelines and jobs.Platform Data Engineering & DeliveryDesign and develop ingestion pipelines utilizing Azure and Databricks services, including Azure Data Factory pipelines and Databricks notebooks/jobs/workflows.Implement and manage CDC patterns for inserts, updates, and deletes, accommodating late arriving data and reprocessing strategies.Structure and maintain bronze and silver Delta Lake datasets, focusing on schema enforcement, de-duplication, and performance tuning.Create “transformation-ready” datasets and interfaces with stable schemas, contracts, and metadata expectations for analytics engineers and downstream modeling.Adopt a batch-first approach for data ingestion, ensuring raw landing, replayability, and idempotent batch processing while progressing towards true streaming as required.Software Engineering for Data FrameworksDevelop and maintain Python-based ingestion and CDC components as production-grade software, focusing on modules, packaging, versioning, and releases.Implement engineering best practices such as code reviews, unit/integration tests, static analysis, formatting/linting, type hints, and comprehensive documentation.Establish and enhance CI/CD pipelines for data engineering code and pipeline assets, covering build, testing, security checks, deployment, and rollback patterns.

Join our innovative global AI initiative as we build a dedicated enterprise AI team and platform to design, implement, and operate cutting-edge AI use cases throughout our organization.The AI Platform serves as a secure environment that governs the use of AI services and applications, evolving into a comprehensive ecosystem that integrates cloud-based AI services, orchestration layers, and in-house AI applications.In close collaboration with the AI Architect and Solution Engineers, you will be instrumental in enhancing this ecosystem, implementing AI use cases, and ensuring their seamless deployment and operation in production environments.Key Responsibilities:Configure and enhance enterprise AI platforms and orchestration components.Implement platform capabilities and actively contribute to the development of AI use cases.Design and develop APIs, service components, and integration logic for AI-driven solutions.Maintain the stability, performance, and reliability of operational AI services.Address incidents and implement operational improvements.Support CI/CD pipelines, Infrastructure as Code, and containerized components as necessary.Provide expert technical guidance to advanced business users utilizing the AI platform.

Join Formlabs as a Service Engineer, where you will play a crucial role in ensuring the highest level of support for our customers. In this position, you will be responsible for diagnosing technical issues, providing solutions, and delivering outstanding service. You will have the opportunity to work with cutting-edge 3D printing technology and collaborate with a team of skilled professionals.

This position is based in Budapest, Hungary, within a hybrid work environment requiring office attendance 3 or more days per week. Tulip, a pioneer in AI-native frontline operations, empowers global enterprises to provide their workforce with composable, interconnected applications. This innovation leads to superior quality work, enhanced efficiency, and comprehensive traceability throughout operations. Our cloud-native, no-code platform, driven by integrated AI, is revolutionizing digital transformation in industrial settings with human-centric, composable solutions that redefine the Manufacturing Execution System (MES) landscape. Founded as a spinoff from MIT, Tulip is headquartered in Somerville, MA, with additional offices located in Germany, Hungary, Singapore, and Israel. We have been recognized as a Global Innovator by the World Economic Forum, a recipient of the 2024 Deloitte Technology Fast award, and a finalist among Energage’s Top Workplaces USA, alongside being listed in Built In Boston’s “Best Places to Work” and “Best Midsize Places to Work.”

We are seeking a highly skilled DevOps Engineer to join our dynamic team at Deutsche Telekom IT Solutions. In this role, you will collaborate with cross-functional teams to optimize our development and operational processes, ensuring seamless integration and delivery of software solutions.

Join our team as a Lead Data Engineer and play a pivotal role in shaping data engineering strategies at DEPT®. Our hybrid work environment spans across vibrant cities including Budapest, London, Manchester, Amsterdam, Rotterdam, Dublin, Zagreb, and Split.At DEPT®, we empower the world’s most ambitious brands to accelerate their growth, blending technology and marketing through our expert team of over 4,000 specialists. We are proud to partner with industry leaders such as Google, Lufthansa, Meta, eBay, and OpenAI, and have maintained our B Corp and Climate Neutral certifications since 2021.In our Data & AI practice, we are dedicated to producing groundbreaking work that leverages Data & AI across various sectors. As a member of our EMEA Data craft team, you will collaborate with data strategists, scientists, and analysts to tackle complex challenges faced by beloved global brands.As a Lead Data Engineer, you will guide your team in delivering innovative, enterprise-scale data solutions, combining your technical expertise with strong business insights to meet client objectives.

We are seeking a highly skilled and motivated Senior AI/ML Platform Engineer to join our dynamic team at Instructure. In this role, you will collaborate with cross-functional teams to design, develop, and enhance AI and machine learning platforms that power our innovative educational technologies. Your expertise in AI/ML frameworks will be pivotal in driving our product development forward.

Join our innovative team at Betsson as a Fullstack Software Engineer specializing in Player Management. In this dynamic role, you'll leverage your extensive experience in agile development practices while collaborating closely with cross-functional teams and product owners. Your expertise in designing and implementing end-to-end technical solutions will be key in shaping our player account management systems, with a strong focus on utilizing AI tools and services to optimize our development processes.The WowOur Product Development organization operates across five locations, hosting some of the most creative talent in the iGaming industry. If you thrive on cutting-edge technologies and relish the challenge of mission-critical responsibilities, this is the perfect opportunity for you!In a highly competitive market, we prioritize the adoption of the latest technologies to ensure exceptional performance, functionality, and user experience. You will be instrumental in building an industry-leading, scalable, multi-brand platform that supports over 40 brands, catering to hundreds of thousands of users.What's in it for you?The Player Account Management (PAM) area encompasses various aspects of managing player accounts, including:Account creation, verification, updates, and closureAccount authentication, controls, and securityUser session managementResponsible Gaming initiativesA taste of what you will be doingDesign, develop, and maintain scalable fullstack applications using .NET (preferably .NET 9) and Angular.Integrate and manage messaging systems such as Kafka and RabbitMQ.Deploy and manage applications using Docker and Kubernetes in AWS environments.Work with various databases including PostgreSQL, MSSQL, and Couchbase.Implement search capabilities using OpenSearch or Elasticsearch.Write and maintain frontend code using TypeScript, ensuring quality with Playwright or Cypress.Collaborate closely with team members and product owners in an agile environment to meet organizational goals.Utilize AI tools and services to enhance workflows and productivity.

We are seeking a talented and motivated DevOps Engineer to join our dynamic team at Deutsche Telekom IT Solutions. As a key member of our organization, you will play a vital role in enhancing our cloud infrastructure and ensuring seamless deployment processes.Your responsibilities will include automating deployment pipelines, monitoring system performance, and collaborating with cross-functional teams to deliver high-quality services. This role is perfect for individuals who are passionate about cloud technologies and are eager to make an impact in a fast-paced environment.

Our Mission Hiya Inc. is focused on restoring trust in voice communication. With spam, scams, and AI manipulation eroding confidence in phone calls, Hiya’s mission is to make voice safe, useful, and human again. Each month, our AI-powered technology analyzes over 28 billion calls, protecting more than 550 million users and over 800 businesses worldwide. We work with partners such as AT&T, Samsung, British Telecom EE, Rogers, MasOrange, Bell Canada, MasMovil, and Virgin Media O2. Together, we not only block malicious calls but also help people feel secure answering their phones. Hiya is growing rapidly, with over 40% year-on-year expansion. As the landscape of voice threats evolves, we continue to set new standards for reliable, trusted communication on a global scale. Role Overview: Mid-Level Backend Software Engineer The Partner Distribution team delivers Hiya’s call profiling solutions, Connect, Protect, and Spoof Defence, to mobile operators and OEM device manufacturers around the world. Last year, we brought four new operators onto our platform, and two more joined this month. Our network is expanding quickly. We are looking for a Software Engineer II to help us scale. This engineer will work alongside a small, agile team, tackling challenges from initial design through production. The team values iterative development and takes responsibility for its work in production. What You Will Do Contribute to the development and scaling of backend services that process real-time call signals for millions of calls across a global operator network. Work with technologies including Scala, Kafka, Kubernetes, and AWS. Participate in technical decisions, code reviews, system design, and deployments. Collaborate closely with team members in a supportive, review-driven environment. Own projects from conception to production, with significant autonomy and scope. About the Stack Scala for backend development Kafka for data streaming Kubernetes for orchestration AWS for cloud infrastructure Location This position is based in Budapest, HU.

Role overview Qima seeks a Senior Manager, Data & Web Engineering to join their Budapest office. This leadership position manages a team of data engineers and web developers, focusing on the creation and improvement of data solutions and web applications. The role shapes data frameworks and helps ensure web platforms run smoothly, offering a dependable and user-friendly experience. What you will do Lead and mentor a group of data engineers and web developers Oversee development and refinement of data frameworks Maintain high standards for web platform performance and usability Collaborate with cross-functional teams to apply best practices in data management and web engineering Guide the team through complex technical issues Deliver projects on time and within budget Encourage continuous learning and foster innovation within the team Requirements Demonstrated experience leading teams in data engineering and web development Strong knowledge of data frameworks and web application performance Ability to work effectively across departments Track record of mentoring and developing technical staff Comfort managing several projects and shifting priorities This position is located in Budapest.

As an Automation Engineer specializing in VMware technologies, you will be pivotal in enhancing our automation frameworks and tools. Your expertise will help streamline processes and improve system efficiency. Join us in shaping the future of IT solutions!

Join Bosch Group as a Homologization Engineer Intern, where you will have the opportunity to work on cutting-edge technology and contribute to the development of innovative automotive solutions. In this role, you will assist in the homologation process, ensuring that our products meet regulatory standards while gaining valuable industry experience.

mpsolutions is searching for a Lead Infrastructure & Platform Engineer for Cloud & ML Serving to join the team in Budapest. This position centers on building and maintaining the core platform that delivers machine learning models in real time to a wide user base. The work supports AI and imaging projects, and offers the opportunity to shape both cloud and serving architecture from the ground up. Main responsibilities Design and maintain cloud infrastructure across AWS, GCP, and Azure. Deploy and scale machine learning models in production environments. Develop high-load backend systems, including APIs, inference pipelines, and data processing components. Contribute to production server code, not just operational tasks. Make platform-level decisions focused on performance, latency, and reliability. Requirements Minimum 8 years of experience in cloud, platform, or distributed systems roles. Deep knowledge of AWS, Kubernetes, CI/CD pipelines, and Infrastructure as Code (IaC). Hands-on experience with ML serving, GPU inference, and real-time systems. Strong programming skills in Python and C++ (beyond basic scripting). Understanding of scaling, latency, fault tolerance, and observability in production systems. Fluency in English. What makes this role different This position blends platform engineering, backend development, and machine learning serving. It is not a traditional DevOps job. Full ownership of the stack, from infrastructure through backend systems to ML model serving. Work on systems that handle real-world, high-scale traffic. Contribute in a startup environment where technical decisions directly shape the product. For those interested in building foundational platforms and making key technical choices, mpsolutions welcomes a conversation.

The Exciting Opportunity This position plays a vital role in architecting and enhancing our platform to meet business demands while optimizing our systems. In this role, you will have the opportunity to develop new data pipelines, manage platforms hosted on data streams for both batch and real-time loading, and create real-time visualizations. Key Responsibilities: Maintain and enhance our existing data platform. Develop processes to ingest data from Kafka, APIs, and databases using AWS MSK Connect. Design and maintain real-time data processing applications utilizing frameworks such as Spark Structured Streaming and Kafka Streams. Implement transformations on data streams. Participate in data modeling adhering to standards like Inmon, Kimball, and Data Vault. Ensure data quality by verifying consistency and accuracy. Stay current with research and advancements in technology to improve our data platform. Possess an investigative mindset to troubleshoot issues creatively and manage incidents effectively. Take full ownership of assigned projects and tasks while collaborating within a team environment. Document processes thoroughly and conduct knowledge-sharing sessions. What We're Looking For: Essential Qualifications: Proven experience with modern cloud database technologies, especially Snowflake. Expertise in orchestrating data pipelines using Airflow. Proficient in AWS Glue. Familiarity with Apache Iceberg. Strong experience with SQL and Data Integration Tools. Proficiency in programming languages such as Python or Scala. Knowledge of AWS Services like S3, Lambda, API Gateways, DMS, and RDS. Development experience in Microsoft and Linux/Cloud environments. Exceptional analytical and problem-solving skills.

Join Kpler as a Senior BI Data Engineer and be a pivotal force in shaping our data architecture. In this vital role within our Business Intelligence & Insights team, you will develop scalable data pipelines, create robust data models, and establish reliable infrastructure that empowers teams across the organization with access to high-quality, accurate data. This position is ideal for someone who thrives in a fast-paced, international environment and enjoys addressing complex data challenges while designing systems that drive insights, reporting, and machine learning at scale. You will report directly to the Director of BI, collaborating closely with cross-functional teams to enhance data-driven decision-making across the company.

Become a pivotal member of our innovative team as a Senior Embedded Software EngineerSentec AG is a distinguished Swiss-American company at the forefront of medical device technology, specializing in advanced respiratory care solutions. Since our inception in 1999, we have embraced a deep-tech philosophy, integrating cutting-edge science and innovative technologies to enhance the lives of respiratory patients around the globe.Our mission is to drive transformative changes in clinical practices that mitigate the challenges faced by respiratory patients, optimize healthcare outcomes, and reduce costs. We leverage the latest scientific advancements and engineering technologies across our three primary platforms: transcutaneous monitoring, intrapulmonary percussive ventilation, and electrical impedance tomography. All our products are developed and manufactured in-house, ensuring the highest quality standards.We are proud to have received Kununu’s Top Company award in 2025 and 2026.

Join our dynamic team as a Solution Engineer, where you will play a crucial role in designing and implementing innovative solutions for our clients. You will collaborate with cross-functional teams to deliver exceptional results and ensure customer satisfaction.