Senior Software Engineer at Cast AI | Europe

jobgether is seeking a Senior Software Engineer to help shape AI-powered SaaS products. This position is based in Hungary and focuses on designing and building software that brings advanced AI capabilities to our platform. Role overview This role centers on developing new software applications and improving existing ones. Collaboration with colleagues from different teams is a regular part of the job, as is finding ways to integrate AI technologies that make our SaaS solutions more effective. The work directly influences how our products evolve and how customers experience them. What you will do Design and develop software applications for AI-driven SaaS products Work closely with cross-functional teams to deliver features and improvements Drive the adoption and implementation of AI technologies within our offerings Who we’re looking for Creative and analytical approach to problem-solving Interest in advancing technology and exploring new solutions Experience building software applications, ideally with AI or SaaS products

About Cast AI Cast AI builds an automation platform that combines artificial intelligence with Kubernetes infrastructure. The goal: improve performance, reliability, and efficiency in production environments by embedding autonomous decision-making into cloud systems. Manual management of Kubernetes and AI environments becomes less effective at scale. Cast AI addresses this by providing continuous automation that adapts infrastructure as conditions change. This approach helps reduce manual work, cuts costs, and boosts operational efficiency. More than 2,100 companies rely on Cast AI, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS. Global Team and Culture Headquartered in Miami, Cast AI operates across 34 countries, including Europe, North America, Latin America, and APAC. The team values diverse perspectives and intentionally builds a global workforce. Recent Milestone In January 2026, Cast AI reached unicorn status after a strategic investment from Pacific Alliance Ventures, part of the Shinsegae Group (a conglomerate valued at over $50 billion). The company’s valuation now exceeds $1 billion. Location Requirements This Senior Software Engineer - Infrastructure role is open to residents of Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.

Wise is hiring a Senior Software Engineer for the Contact Automation team in Budapest. This position focuses on building automation systems that use artificial intelligence to streamline operations and enhance the experience for users worldwide. Main responsibilities Design and build AI-driven automation solutions that support contact processes Collaborate with colleagues from different areas to deliver systems that are reliable and scalable Improve and update existing automation tools to increase their efficiency and impact What Wise is looking for Strong skills in software development Ability to approach problems with creativity and practical solutions Interest in new technologies and a drive to improve user experience

Opswat is hiring a Senior .NET Engineer with a focus on AI technologies in Veszprém, Hungary. This position centers on developing new features and solutions for cybersecurity products, applying both .NET and artificial intelligence expertise. Role overview This role involves building and improving software that strengthens Opswat’s cybersecurity offerings. The position calls for hands-on work with AI-driven components, contributing to projects that aim to address evolving security challenges. What you will do Develop and maintain .NET-based software with integrated AI features Collaborate with team members to deliver solutions that improve product capabilities Contribute to projects that support the security needs of clients and the wider industry Requirements Professional experience with .NET development Background in artificial intelligence technologies Interest in cybersecurity and building impactful solutions

Company Overview:At Zocks, we are a pioneering AI startup backed by venture capital, dedicated to revolutionizing the financial services sector and beyond, where security and privacy are paramount. Our founding team comprises veterans from the realms of real-time communication, enterprise platforms, and security-sensitive industries, hailing from renowned organizations such as Twilio, IBM, Microsoft, and Hearsay Systems. We leverage artificial intelligence to seamlessly connect human interactions with enterprise systems, starting with the financial services landscape.Our mission is straightforward yet impactful: to transform business operations by eliminating outdated, cumbersome processes. Our innovative platform facilitates natural communication, allowing us to capture essential data seamlessly, thereby minimizing manual data entry and enabling our users to focus on what truly matters - their clients.Location: Budapest, XI. (On-site Monday to Thursday, Remote on Fridays)Why Join Us: As we embark on our next phase of growth, we are eager to welcome a Senior Software Engineer with a minimum of 4 years of experience to our dynamic development team. We seek an individual who can inject fresh ideas, demonstrate advanced technical prowess, and possess a fervor for innovation. Your contributions will be vital in advancing our projects and enhancing our product offerings.

Company Overview:At Zocks, we are a pioneering venture capital-backed AI startup that is revolutionizing financial services and various industries prioritizing security and privacy. Our founding team comprises industry veterans from leading companies like Twilio, IBM, Microsoft, and Hearsay Systems, who have dedicated their careers to developing real-time communication solutions and enterprise platforms. We leverage cutting-edge AI technology to seamlessly connect human interactions with enterprise systems, beginning with the financial sector.Our mission is straightforward yet impactful: to reinvent business operations and streamline areas often hindered by inefficient processes. Our innovative platform empowers users to communicate effortlessly while we capture vital information, eliminating cumbersome data entry and allowing them to focus more on what matters most—their clients.Location: Budapest, XI. (On-site Monday to Thursday, Remote on Fridays)Why Join Us: As we continue to expand, we are in search of a Senior Software Engineering Manager with a minimum of 7 years in Software Engineering and at least 3 years in a leadership role to guide and mentor our talented team of developers. We seek an individual who can introduce innovative ideas, possess advanced technical expertise, and have a strong passion for innovation. In this pivotal role, you will drive our projects forward, enhance our product offerings, and address the increasingly complex needs of our customers using agile methodologies and state-of-the-art technologies.

This freelance Optical Engineer and AI Trainer position with toloka-ai is fully remote within Hungary. Mindrift connects professionals to project-based AI assignments for leading tech companies. Work is organized on a project-by-project basis and does not constitute permanent employment. Role overview This role centers on testing, evaluating, and improving AI systems. Assignments involve developing and refining complex optical and physics problems that challenge AI models and reflect real-world research scenarios. What you will do Create original optical problems modeled after authentic physics research workflows. Design scenarios that require substantial computational effort, beyond what manual solutions can achieve in days or weeks. Develop problems involving advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base challenges on actual research obstacles or practical issues in optics and physics. Write clear, precise problem statements and provide carefully checked solutions. Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related discipline. Minimum of 2 years of professional experience in applied work, research, or teaching. Experience with numerical simulation methods. Ability to design problems that mirror genuine research workflows in physics. Creative approach to problem design across multiple physics domains. Familiarity with modeling and approximation techniques in physics. Strong written English skills at C1 level or above. Project commitment Active project phases typically require 10–20 hours per week. Actual workload may vary and is not guaranteed, depending on project needs. Compensation Earn up to $45 per hour, depending on expertise and pace. Rates may vary by project based on complexity, scope, and required skills. Other projects on the platform may offer different compensation depending on their specific requirements. Application process Application Qualification assessment Project participation Task completion Payment Please submit your CV in English and include your English proficiency level.

Embrace your individuality at ABBYY, where we honor diverse work styles. With flexible working arrangements and a nurturing team environment, we reward your contributions as you focus on your development while advancing our collective success.Our values of respect, transparency, and simplicity empower trust, ensuring we consistently choose the right path for our team and clients.As a premier provider of AI solutions and intelligent automation, we tackle intricate challenges for our enterprise clients, optimizing their information to revolutionize their operations. Trusted by over 10,000 customers, including numerous Fortune 500 companies, you will enhance a portfolio that features prestigious names such as DHL, Johnson & Johnson, FDA, DMV, PwC, KeyBank, Spotify, and H&R Block.We are on the lookout for a talented Senior Software Engineer to lead the modernization and advancement of our C++ Computer Vision library, focusing on the creation of innovative algorithms for Intelligent Document Processing (IDP). This position demands deep technical knowledge to deliver high-performance Computer Vision solutions that will empower our product teams. Our extensive library encompasses algorithms spanning Classical Computer Vision, Machine Learning, Deep Learning, and state-of-the-art Multimodal models. The ideal candidate will architect and implement core library structures while mentoring their peers and collaborating across departments to ensure the sustained success of our vision technology. Significant experience with Computer Vision principles and algorithms is essential.

About UsSophos is a leading global innovator in advanced security solutions designed to combat cyberattacks. Following our acquisition of Secureworks in February 2025, we have united two industry pioneers that have significantly transformed cybersecurity through innovative, AI-optimized services, technologies, and products. As the largest dedicated Managed Detection and Response (MDR) provider, we are proud to support over 28,000 organizations worldwide. Our comprehensive portfolio includes industry-leading solutions for endpoint, network, email, and cloud security, all of which seamlessly integrate and adapt through the Sophos Central platform. Our partner network includes reseller partners, Managed Service Providers (MSPs), and Managed Security Service Providers (MSSPs), enabling us to protect over 600,000 organizations globally from phishing, ransomware, data theft, and other cyber threats, including those from state-sponsored actors. Our solutions leverage the historical and real-time threat intelligence from Sophos X-Ops and the Counter Threat Unit (CTU). Sophos is headquartered in Oxford, U.K. For more information, please visit www.sophos.com.Are you ready to be part of a dynamic team focused on researching and developing next-generation security products that are utilized by countless customers daily? Are you keen on creating high-performance tools to support large-scale machine learning projects? Do you aspire to learn how to build and deploy effective high-performance machine learning models for real-world applications?The Sophos Artificial Intelligence (Sophos AI or SAI) department is seeking talented Software Engineers to join our software engineering team. This role will concentrate on the development and support of AWS cloud-based big data tools and analytics. As a team member, you will be responsible for developing and maintaining our internal testing systems, ensuring the highest quality of deliverables used by Sophos products to safeguard our customers. To excel in this position, you should be passionate about delivering high-quality outputs, fostering continuous improvement, and collaborating with global teams, leveraging your exceptional skills to contribute to the success of the Sophos Artificial Intelligence team.

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 Us in Revolutionizing Banking!At 10x Banking, our mission is to transform the banking experience tenfold. As pioneers in the financial sector, we have developed the world’s first 'meta core' cloud-native core banking platform, empowering leading global banks and financial institutions such as Chase UK, Old Mutual, and Westpac.We cultivate a diverse and innovative global community, dedicated to collaboration and tackling exciting challenges with integrity. By joining us, you will contribute to making a positive impact for our clients, their customers, and the communities we serve.About the RoleAs a Senior Software Engineer at 10x, you are enthusiastic about cutting-edge technologies and possess extensive technical expertise in data systems to create scalable solutions. This position is integral to our migrations, extensibility, and core banking teams, where you will develop the next generation of bank-migration tools and enhance our extensibility framework. You will work on critical foundational services that support banking operations worldwide, collaborating across various teams and domains. Our engineers enjoy significant autonomy, a remote-first environment, and access to AI-driven tools to facilitate rapid development. This role entails deep design and implementation of complex distributed systems, offering exposure to all components of the banking backend.Beyond technical capabilities, you will also mentor junior developers and bring a wealth of experience in delivering high-quality software in a fast-paced, high-performance development setting.Please Note: This role is fully remote; however, you must reside in Hungary for the duration of your employment.About YouYou are eager to solve problems that extend beyond your immediate team and demonstrate the ability to think on multiple levels—strategic, tactical, and operational. You excel at reading code and designing systems that meet the exacting standards of our clients.Our Tech Stack:- Java / Spring Boot (with some Kotlin)- Kubernetes, Docker, Helm, Terraform, AWS- Kafka, Redis, PostgreSQL, Spring Reactive, Quarkus- Gradle, Jenkins, SonarQube, Checkmarx

Cambridge Mobile Telematics (CMT) develops technology to improve road safety for drivers worldwide. The company’s DriveWell® Fusion platform gathers sensor data from millions of IoT devices, such as smartphones, proprietary Tags, connected vehicles, dashcams, and third-party hardware. This data, combined with contextual information, helps organizations understand vehicle and driver behavior. Auto insurers, automakers, commercial mobility providers, and public agencies use CMT’s insights to support risk assessment, safety programs, claims handling, and driver improvement efforts. CMT is headquartered in Cambridge, MA, with offices in Budapest, Chennai, Seattle, Tokyo, and Zagreb. Role overview The Senior Software Engineer, Customer Solutions, will focus on building and enhancing systems for CMT’s growing customer base. This position leads the development of custom applications and integrations that address specific business needs. Responsibilities include overseeing design, guiding implementation, and ensuring smooth deployment throughout each project. What you will do Lead the creation and improvement of tailored systems and applications for customers Oversee system design and integration from planning through deployment Work closely with clients and internal teams to ensure solutions meet business requirements What we look for Experience developing software solutions for external clients or partners Ability to manage the full project lifecycle, from design to deployment Strong communication skills and a customer-focused approach

Role overview Scale AI is hiring a Backend Software Engineer in Budapest, Hungary. This role focuses on building backend systems that help businesses operate more effectively worldwide. The work centers on creating scalable, efficient solutions that maintain high performance and reliability. What you will do Develop and maintain backend systems that support Scale AI’s products Collaborate with a skilled team to deliver reliable, responsive infrastructure Contribute to projects that impact customers and partners across the globe

Join the Getting Help Team at Wise!At Wise, our mission is to revolutionize financial services by making them faster, simpler, and more accessible for everyone. The Getting Help team is integral to this mission, focusing on empowering our customers to resolve their issues swiftly and effectively.We have established a robust infrastructure that includes FAQs, self-service pages, and a newly launched chat platform—our primary support channel. With our commitment to enhancing customer interactions, automating solutions, and supporting other teams, we are dedicated to improving overall support experiences. As we aim to make chat the preferred communication channel for our customers by 2026, we need your expertise to elevate it to the next level!  About Our TeamWe are a dynamic, cross-functional team composed of backend, frontend, iOS, and Android engineers, collaborating closely with a Product Manager, Analyst, and Designer. Together, we strive to deliver seamless and impactful solutions across all Wise platforms. Our culture thrives on collaboration, ownership, knowledge sharing, and a shared commitment to building stable, scalable systems while embracing rapid learning and iteration.

Position Overview:As a Senior Software Engineer at ion, you will be instrumental in the architecture, development, and ongoing maintenance of robust web applications spanning both front-end and back-end systems. You will engage collaboratively with multidisciplinary teams, including developers and product managers, to deliver exceptional software solutions that meet and exceed our clients’ needs. Your expertise will be pivotal in implementing industry best practices in coding, testing, and deployment, ensuring that our applications are scalable, high-performing, and secure. We seek an individual with strong analytical abilities, outstanding communication skills, and the adaptability to thrive in a dynamic, fast-paced environment.

Join our rapidly growing IT service company, which boasts a strong international presence and is dedicated to delivering exceptional IT solutions and operational services. With our headquarters located in the heart of Budapest, we aim to offer top-notch solutions to both local and global clients. Our strategic vision is to continuously broaden our service offerings, enhancing support for both internal and external partners. Our solid foundation and commitment to professional growth are reinforced by the ongoing success of our parent companies. Our innovative and international environment presents exciting professional challenges, fostering continuous development and career progression.Design, develop, and maintain robust .NET applications utilizing ASP/C#, Entity Framework, Blazor, HTML5, CSS3, JavaScript/TypeScript, MsSQL/Oracle/NoSQL, IIS, and NuGet, particularly in the ShopFloor domain.Collaborate closely with functional teams to establish comprehensive project requirements.Enhance code performance and scalability with a strong emphasis on quality and security.Provide maintenance and troubleshooting for existing applications.Lead the migration of legacy systems to modern architectures and solutions.Ensure thorough documentation of development processes.Mentor and guide junior developers.

Join ABBYY and become part of a dynamic team that values your individual work style. Our flexible work arrangements, supportive colleagues, and recognition of your contributions allow you to focus on what truly matters – your personal growth and our collective success.We are committed to principles of respect, transparency, and simplicity, ensuring you can trust us to consistently make ethical decisions.As a reliable partner in tailored AI and intelligent automation, we tackle intricate challenges for our enterprise clients, transforming their information into actionable insights to revolutionize their operations. Trusted by over 10,000 customers, including numerous Fortune 500 companies, you will enhance a portfolio that includes renowned names such as DHL, Johnson & Johnson, FDA, DMV, PwC, KeyBank, Spotify, and H&R Block.ABBYY Vantage stands as our premier Document AI platform – a cloud-native, microservices-driven solution integrating purpose-built AI, OCR, NLP, and direct LLM functionalities to enable enterprise clients to extract, classify, and utilize data from any document. The latest release, Vantage 3.0, features native Azure OpenAI integration, enterprise-grade compliance and redaction, real-time analytics dashboards, and an expanding collection of pre-configured AI capabilities. Over 10,000 companies, including industry leaders like DHL, Johnson & Johnson, FDA, PwC, KeyBank, Spotify, and H&R Block, rely on ABBYY to streamline their most challenging document workflows.We are seeking a Senior Software Engineer to join our Vantage engineering team. In this hands-on role, you will contribute to the development and enhancement of the services that empower Vantage's document AI functionalities – ranging from OCR pipelines and skill training workflows to API integrations and analytics infrastructure. You will leverage your strong engineering principles, a quality-first approach, and a commitment to delivering reliable, scalable software within a cloud-native framework.

Join Cambridge Mobile Telematics (CMT), the world's premier telematics service provider dedicated to enhancing road safety. Our innovative AI-driven platform, DriveWell® Fusion, aggregates sensor data from millions of IoT devices—including smartphones, proprietary Tags, connected vehicles, dashcams, and third-party devices—melding it with contextual information to deliver a comprehensive overview of driver and vehicle behavior. Industry leaders in auto insurance, automotive manufacturing, commercial mobility, and public sectors leverage insights from CMT’s platform to enhance risk assessment, safety measures, claims processing, and driver improvement initiatives. With headquarters in Cambridge, MA, and additional offices in Budapest, Chennai, Seattle, Tokyo, and Zagreb, CMT safeguards millions of drivers globally every day.Our cutting-edge technology is powered by the CMT Mobile SDK, which is integrated into numerous mobile applications and is crucial for collecting, processing, and transmitting high-fidelity sensor data from smartphones and connected hardware. This SDK enables real-time telematics capabilities and significantly contributes to CMT’s SaaS revenue.We are in search of a dynamic, customer-focused, and innovative Senior Software Engineer, Mobile to enhance our iOS SDK team, comprised of skilled developers in both Budapest and Cambridge. This role is perfect for individuals who are passionate about crafting high-quality software, exploring the potential of mobile devices, and contributing to a global, data-driven platform that genuinely impacts the world by improving driver safety.

At Cision, we are committed to empowering individuals to make a significant impact. Your voice will be valued, your ideas cherished, and your unique viewpoint will drive our shared success. As a member of our global team, you will flourish in an environment that promotes curiosity, collaboration, and innovation, all while contributing meaningfully to the brands we enhance. Join us in revolutionizing communication and fostering authentic relationships that matter. Whether you are tackling complex challenges or pioneering bold innovations, your development is our success, and together, we’ll create the conversations of the future. Empower your impact at Cision. Be seen, be understood, be you. You will work closely with product, design, technology, and data science teams, becoming an integral part of the backend platform team to develop new backend services, processes, and components while enhancing existing ones.You will take a leadership role in reviewing code changes within your team and provide constructive feedback to uphold quality and best practices. You will actively assess technologies for applications and offer recommendations that align with team and product requirements.You’ll mentor engineers of varying experience levels, sharing your expertise in code maintainability, performance, reliability, observability, security, and functionality. With a solid grasp of the tech stack and Software Development Life Cycle (SDLC), you will make significant contributions to project success and team productivity. You may serve as a subject matter expert (SME) within the engineering organization, delivering insights to cross-functional teams. Essential Duties and Responsibilities include the following:Develop and own solutions that add value across systems while managing technical debt.Collaborate closely with engineers, product owners, and other stakeholders to align on optimal solutions that meet product objectives.Lead in fostering a Test-First mentality and emphasize quality at the code level.Help translate complex product requirements into clear, actionable technical tasks.Stay informed about technology trends and product roadmaps, providing strategic guidance to the development team.Actively support cross-functional business processes, facilitating collaboration and communication.Work with other senior-level stakeholders to ensure adherence to best practices.