Senior Software Engineer at Deutsche Telekom IT Solutions | Budapest

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 t…

Join our innovative team as a Senior Software Engineer at Marshmallow, where you will be instrumental in designing and implementing cutting-edge software solutions. You will collaborate with cross-functional teams to enhance our platform and deliver exceptional user experiences.

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.

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 at Speechify as a Senior Software Engineer specializing in Core Experiences. In this pivotal role, you will design, develop, and optimize innovative software solutions that enhance user engagement and streamline interactions. You will collaborate closely with cross-functional teams to deliver high-quality products that meet our users' needs.

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

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.

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.

Role overview Wise is hiring a Senior Software Engineer in Budapest to work on Fraud Handling. This position focuses on improving fraud detection systems and building solutions that help secure the platform. As part of this team, the work directly contributes to protecting users from fraudulent activity. The role involves both strengthening existing safeguards and developing new ways to identify and prevent fraud. What you will do Enhance fraud detection systems to better identify suspicious activity Develop and implement solutions that improve platform security Support efforts to protect Wise users from fraud Location This role is based in Budapest.

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.

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

Position Overview:Join our dynamic team as a Senior Software Test Engineer, where you will be instrumental in upholding the excellence and dependability of our web applications, both on the front-end and back-end. In this pivotal role, you will design, develop, and execute meticulous test plans and test cases. By collaborating with our talented developers and product managers, you will contribute to the delivery of top-tier software solutions. Your expertise will guide the implementation of best testing practices, focusing on scalability, performance, and security. Although our primary focus is on automated testing, manual testing will also be integral to guarantee thorough coverage.

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 us in pioneering cutting-edge imaging and 3D technology, presently under provisional patent. As a Senior Software Engineer specializing in C++, you will play a vital role in the development of our next-generation platform, with significant exposure to machine learning systems.In this senior-level position, you will engage in the design, development, and maintenance of robust backend services, data pipelines, and application layers. You will translate machine learning concepts into dependable, production-grade systems while collaborating closely with ML engineers, GPU infrastructure teams, and product engineers. This role offers a unique opportunity to enhance your expertise in applied machine learning.

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.

Join our dynamic team at Hawkeye Innovations as a Senior Software Engineer specializing in C++ tooling. In this pivotal role, you will design, develop, and enhance innovative software solutions that streamline our tooling processes, ensuring efficiency and high performance. Your expertise in C++ will be crucial as you collaborate with cross-functional teams to deliver robust software applications that meet our clients' evolving needs.

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.”

Role overview Wise is looking for a Senior Software Engineer to join the Europe Money Movement team in Budapest. This team builds and maintains features that help people move money across Europe efficiently and securely. What you will do Design and implement features for financial transactions using Java Collaborate closely with teammates to improve and scale Wise’s money movement platform Contribute to Wise’s mission to lower the cost of international money transfers Tech stack Java is the primary language for this role.

At SEON, we are the pioneers in fraud prevention and AML compliance, empowering thousands of enterprises globally to combat fraud, mitigate risks, and safeguard their revenue streams. Utilizing over 900 real-time, first-party data signals, we enhance customer profiles, identify suspicious activities, and optimize compliance processes—all from a single platform. SEON offers unparalleled data richness, versatile and transparent analyses, and a swift path to value that surpasses any competitor in the industry. Our innovative approach has enabled clients to decrease fraud by 95% and achieve a remarkable 32x return on investment. We are rapidly expanding, fueled by collaborations with some of the most forward-thinking digital brands like Revolut, Wise, and Bilt.As a FullStack Java Engineer at SEON, you will leverage your robust software engineering skills while adopting a mentoring role to empower your peers and collaborate closely with our engineering leadership. We are committed to a product-led growth strategy.Join our Scoring Team, the core of SEON, where we aggregate data to provide our clients with the tools needed to block fraudulent activities. We are in a constant state of evolution, adding new data sources to refine our sophisticated real-time analyses and enhancing user experience to bolster their fraud prevention capabilities. This role encompasses vital product functions including backend and frontend development, research and development, design, and database management.This position offers flexibility with a hybrid working schedule based in Budapest.