Senior Security Solutions Engineer

Why Choose NebiusNebius is at the forefront of a transformative era in cloud computing, dedicated to empowering the global AI economy. We develop innovative tools and resources that help our clients tackle real-world challenges and reshape industries without incurring hefty infrastructure costs or needing extensive in-house AI/ML teams. Join our talented tea…

Why choose Nebius?Nebius is at the forefront of revolutionizing cloud computing, catering specifically to the burgeoning global AI economy. We empower our clients with state-of-the-art tools and resources designed to tackle real-world problems and drive industry transformation, all while minimizing infrastructure expenses and eliminating the requirement for extensive in-house AI/ML teams. Our workforce is engaged in pioneering advancements in AI cloud infrastructure, collaborating with some of the most talented and innovative leaders and engineers in the industry.Our Work EnvironmentWith our headquarters located in Amsterdam and a listing on Nasdaq, Nebius boasts a worldwide presence with R&D centers across Europe, North America, and Israel. Our diverse team of over 1,400 employees includes more than 400 highly skilled engineers who possess deep expertise in both hardware and software engineering, complemented by a dedicated in-house AI R&D unit.The PositionThis opportunity is within Nebius AI R&D, a team dedicated to applied research and the creation of AI-intensive products. Our recent applied research publications include:Exploring how test-time guided search can enhance agent capabilities.Significantly expanding task data collection to drive reinforcement learning for software engineering agents.Optimizing efficiency in LLM training using agentic trajectories.One of our key AI products is the Nebius Token Factory, an inference and fine-tuning platform for AI models.This role demands proficiency in distributed systems for constructing a large-scale LLM training platform.Your Responsibilities Will Include:Design and develop the LLM training platform.Oversee and maintain our ML infrastructure to ensure peak performance, scalability, and reliability.Enhance job scheduling strategies to reduce resource fragmentation.

Join Our Team at Valka.aiAt Valka.ai, a pioneering spin-off from the esteemed Realms Group, we are dedicated to transforming how individuals create and engage with digital content. Our vision is to ensure that content goes beyond mere consumption; it should be co-created in real time, merging imagination with reality. Leveraging state-of-the-art AI technology, we are developing an interactive platform that allows virtual characters to respond dynamically to users' voices, text, gestures, and more.This is an exciting opportunity to collaborate with a diverse team of innovators who are passionate about redefining the landscape of generative content. Together, we aim to shift the experience from passive viewing to active participation, unlocking new avenues for creativity across gaming, entertainment, education, and beyond.

About ShipMonkAt ShipMonk, we transcend traditional 3PL services; we act as a growth partner for merchants. Our cutting-edge technology combined with our proprietary network of fulfillment centers empowers high-growth eCommerce and DTC brands to focus on growth while we handle fulfillment seamlessly. With a dedicated team of over 2,500 employees across five countries, we are committed to transforming fulfillment. Our mission is to provide the fastest click-to-delivery service, real-time inventory management, and tailored solutions—all driven by a merchant-first philosophy.Why Join ShipMonk?We believe in building enduring partnerships, which is evident through five key differentiators that position us as true allies to our merchants.● Global Fulfillment Network: Our 12+ owned fulfillment centers located across the US, Canada, Mexico, the U.K., and Mainland Europe ensure quality and consistency by never outsourcing our operations.● Proprietary Technology: Our AI-powered platform offers a real-time, unified view of inventory and orders, granting our merchants the control and visibility essential for their success.● Unrivaled Support: We pride ourselves on providing personalized, hands-on support with a global presence. Our dedicated teams are always on-site, ready to assist.● Transparent Pricing: We advocate for honest, long-term partnerships with our all-inclusive pricing model that guarantees predictable costs without hidden fees.● Future Commitment: With over $10 million invested annually in R&D, we ensure our technology and services continuously evolve, solidifying our role as a long-term partner.

Join Collibra’s Exceptional Support Team Collibra is on the lookout for a dynamic Senior Advanced Support Engineer (L3) to act as the ultimate technical authority within our esteemed global support organization. As a pivotal member of this team, you will not only troubleshoot issues but also investigate complex problems, mentor our Customer Support Engineers, and serve as the final checkpoint before any ticket escalates to Product & Engineering. Driven by the pursuit of excellence in a rapidly scaling company, you are eager to delve into the depths of intricate bugs. Your focus on quality ensures that you know precisely what to test and how to effect change with assurance. At Collibra, our customers represent our “True North,” and our Support team is at the forefront of delivering this commitment to superior service! This is a hybrid role based in our Prague office. Our flexible working model allows you to work from the office at least two days a week, fostering connectivity and collaborative progress as a unified team.

Role overview Wrike seeks a Senior Software Engineer in Prague to contribute to the ongoing development of its project management platform. The position centers on designing, building, and maintaining software that supports users and streamlines their workflows. What you will do Collaborate with team members across departments to deliver new features and product enhancements Design and implement software solutions with a focus on usability and performance Maintain and improve existing systems to support a dependable user experience Location This role is located in Prague.

Sentinel Labs is looking for a Senior Machine Learning Engineer to join the AI Detection Team in Prague. This role centers on advancing Static AI Detection technology, with a focus on developing algorithms and models that strengthen AI detection capabilities for organizations around the world. Role overview The Senior Machine Learning Engineer will work closely with colleagues from different disciplines to design, implement, and optimize machine learning solutions. The position involves analyzing data, building prototypes, and refining processes to improve the performance of AI systems. What you will do Develop and enhance algorithms and models for AI detection Collaborate with cross-functional teams on impactful projects Analyze data to inform model development Build and test prototypes to validate new approaches Refine processes to ensure optimal system performance Location This position is based in Prague, Czech Republic.

Veeam is a pioneering company in the realm of Data and AI Trust, dedicated to empowering organizations to comprehend, secure, and safeguard their data and AI capabilities. As a leader in data resilience and security posture management, we are at the forefront of integrating identity, data, security, and AI risk management. With our headquarters in Seattle and a presence in over 30 countries, Veeam supports more than 550,000 customers globally, ensuring their businesses continue to thrive. Join us in our bold journey forward, where we grow, learn, and make impactful contributions for some of the world’s most prominent brands.About the RoleJoin the Veeam Quality Assurance team and collaborate with our QA professionals in the vibrant Prague R&D office, working on innovative Veeam products.What You'll DoConduct testing on one or multiple Veeam productsEngage in product creation and development throughout all lifecycle stagesAnalyze software requirements for clarity and effectivenessContribute to the planning and development of product test strategiesCoordinate with other team members involved in the product development processMentor and train new team membersEvaluate test results and manage the defects databaseAssist in customer technical support processesWhat You'll BringA technical education or a strong passion for technologyA minimum of 3 years of experience in software testingA profound understanding of software development principles and the QA role within itExpertise in developing test strategies and plans, analyzing test progress, and optimizing testing processesAdvanced knowledge of Windows, Linux, or Unix operating systemsExperience with network technologies and systems (DNS, DHCP, basic network settings, etc.)An open-minded, logical, and analytical approachA strong desire and ability to work collaboratively in a teamEnglish proficiency for daily communication within international teamsBonus SkillsExperience with databases such as Microsoft SQL Server or Oracle DatabaseFamiliarity with virtualization platforms like VMware vSphere and Microsoft Hyper-VExperience in test automationExperience in managing and developing a QA teamWhat You'll Get25 vacation days, and more...

Wrike is a premier work management platform designed for teams and organizations that aspire to collaborate effectively, innovate, and surpass goals daily. It consolidates all work into one accessible platform to eliminate complexity, enhance productivity, and enable individuals to concentrate on their most impactful tasks. Our Vision: A world where everyone can focus on their most purposeful work together. Are you an enthusiastic Frontend Engineer? This is more than just a typical job posting; it’s an opportunity to engage with Wrike for future possibilities. By joining our talent pool, you can introduce yourself and discover more about our culture, projects, and technology. We are always keen to connect with skilled professionals, even if we currently don't have an open position. Start a conversation with us today and explore what life is like at Wrike.Learn More About the Wrike TeamAt Wrike, every voice is valued. Our Scrum teams, which include FE, BE, QA, UI, UX, and a PO, are central to our decision-making processes. Frontend Engineers can contribute within either product cross-functional feature teams or technical (internal) teams. In product teams, engineers handle both business logic and technical solutions, while technical teams focus on developing internal tools and libraries, enhancing code quality, and improving the development experience. In both scenarios, you will engage with the product you are building and witness the impact of your contributions, as we deploy one to three times daily.Current Projects Include:Designing, building, and enhancing product features from scratch or refining existing functionalities.Collaborating to tackle complex challenges and iterating on solutions as a team.Ensuring high technical standards through rigorous code reviews, testing, and task estimations.Adopting rapid, iterative development practices while adhering to best practices.Utilizing AI tools on a daily basis to automate tasks and enhance productivity.Fostering continuous learning and supporting mutual growth.Our Technology Stack Includes:TypeScript, React 19, Redux + Redux ToolkitMicrofrontends, Module FederationAngularDart 5.3, Dart SDK 2.13.4 (for legacy components)AI tools for automationFluent English is requiredReasons to Join Wrike:5 weeks of paid vacationComprehensive health benefitsProfessional development opportunitiesDynamic and inclusive work environment

Join CloudTalk as a Senior Software Engineer (Node.js) and be part of a global leader in AI-driven business communication solutions!At CloudTalk, we believe in empowering sales and support teams with the tools they need to enhance customer experiences. With a recent $28 million Series B funding from esteemed investors, we're on track to revolutionize how businesses communicate.As a Senior Software Engineer on our dynamic team, you will collaborate with a diverse group of professionals, including Backend and Frontend developers, QA engineers, and Product Managers, all working in a Scrum environment. Your expertise in Node.js will be crucial in developing and maintaining scalable web applications that drive our mission forward.Your Role:Contribute to the BIT (Backoffice and Internal Tools) team, focusing on our sophisticated billing system, public APIs, and internal management tools.Write clean, maintainable code while actively participating in our robust testing culture.Design and implement new features, engaging in technical discussions and collaboration with your team.Stay updated with emerging technologies and integrate them into your workflows.Why CloudTalk?Be part of creating the #1 AI business communication platform!Enjoy personalized 1-on-1 coaching for your professional growth.Connect with a vibrant community of CloudTalkers and follow our journey on Instagram.Get a front-row seat as we aim for $100M ARR!

Join us in a thrilling journey as we revolutionize the data storage landscape! At Pure Storage, you will engage in groundbreaking technological advancements, work alongside brilliant minds, and contribute significantly to a rapidly evolving industry.If you're eager to embrace the limitless opportunities that come with innovation and leave a lasting impact, we invite you to be part of our team. THE ROLEThe Access Rules team in DX Engineering plays a pivotal role in shaping security and access management at Pure Storage. This dynamic group of engineers designs and maintains systems that govern user, group, and resource interactions across diverse platforms, ensuring secure operations at scale. The team is passionate about building APIs and backend solutions that enforce robust access controls across multiple systems within Pure Storage and the DX organization. They collaborate closely with the Authorization team, product managers, and UI/UX designers to define and enhance the core of Pure’s authorization infrastructure, contributing directly to complex backend services, overseeing feature migrations, and ensuring the reliability of essential access management systems.WHAT YOU'LL DOArchitect Scalable Ecosystems: Design, develop, and maintain high-availability processing services while adhering to stringent security and compliance standards for mission-critical data.Drive Full Lifecycle Innovation: Manage the entire development lifecycle—from experimenting with new technologies to deployment—keeping our platform at the leading edge of the industry.Optimize Engineering Excellence: Champion code quality through unit testing, thorough code reviews, and automated CI/CD pipelines to ensure seamless, continuous delivery.Collaborative Problem Solving: Work with stakeholders to translate complex business needs into elegant technical solutions, focusing on system interoperability and long-term maintainability.WHAT YOU BRINGBackend Mastery: Strong expertise in modern backend languages (such as Python, Java, or Golang) and demonstrated experience in designing and launching intricate software components, with an interest or experience in security.Cloud Native Expertise: Proven experience in building and scaling applications in cloud environments.

Role Overview GoodData is looking for a Senior Python Engineer with a focus on Artificial Intelligence to join the team in Prague. This role centers on building AI solutions that support data analytics and business intelligence initiatives. What You Will Do Develop AI-driven features and tools using Python Work on projects that advance data analytics and business intelligence capabilities Collaborate with other engineers and teams to deliver reliable, scalable solutions Location This position is based in Prague.

Role Overview AFRY is seeking a Senior Technical Supervisor focused on transportation structures for its Prague office. This position centers on overseeing construction projects involving roads and highways. The supervisor ensures all work meets safety standards and technical specifications, supporting high-quality and efficient infrastructure development. Key Responsibilities Supervise construction activities for transportation structures, including roads and highways Monitor compliance with safety regulations and technical requirements Work closely with multidisciplinary teams throughout project phases Coordinate with stakeholders to support successful project delivery Collaboration and Impact This role sits within the Civil and Structural Engineering department. The Senior Technical Supervisor contributes technical expertise and leadership, helping AFRY deliver critical transportation infrastructure projects on time and to specification.

Join Us at NebiusNebius is pioneering the future of cloud computing to support the global AI economy. We develop cutting-edge tools and resources that empower our clients to tackle real-world challenges and revolutionize industries without incurring massive infrastructure costs or needing to assemble extensive in-house AI/ML teams. Our team operates at the forefront of AI cloud infrastructure, collaborating with some of the industry's most innovative leaders and engineers.Our Work EnvironmentWith our headquarters in Amsterdam and listed on Nasdaq, Nebius boasts a global presence with research and development hubs throughout Europe, North America, and Israel. Our workforce consists of over 1400 employees, including more than 400 highly talented engineers with extensive expertise in both hardware and software engineering, as well as an in-house AI research and development team. The YDB Development Team is seeking a Senior Software Engineer with expertise in C++.YDB is an open-source solution serving dual purposes within Nebius:A scalable and reliable binary object storage foundation that powers S3 Object Storage, Filestore, and Network Block Storage, optimized for AI-related workloads.A distributed relational database and message broker that underpins Nebius cloud operations, including IAM, Billing, Audit Trails, and Logging.How You Will Make an ImpactEnhance YDB to maximize the potential of modern hardware such as QLC NVMe drives, Dual 800Gb/s network adapters, and BlueField DPUs.Optimize performance on widely utilized devices like HDDs and TLC NVMe.Redesign YDB components to integrate seamlessly with evolving technologies.

Why Choose Nebius?Nebius is at the forefront of a transformative era in cloud computing, dedicated to empowering the global AI economy. We provide our clients with innovative tools and resources designed to address real-world challenges and revolutionize industries—all while minimizing infrastructure expenses and eliminating the necessity for large in-house AI/ML teams. Our talented workforce operates at the cutting edge of AI cloud infrastructure, collaborating with some of the most skilled and pioneering leaders and engineers in the industry.Our Work EnvironmentBased in Amsterdam and publicly traded on Nasdaq, Nebius boasts a global presence with R&D hubs located across Europe, North America, and Israel. Our team comprises over 1,400 professionals, including more than 400 highly specialized engineers with extensive expertise in both hardware and software engineering, complemented by a dedicated in-house AI R&D team.The RoleWe are seeking a Senior HPC Cluster Engineer to become an integral part of our team, contributing to the advancement of our cutting-edge hyperscaler platform. As a member of the GPU & InfiniBand team, you will focus on enhancing and optimizing the core components of our cloud platform, with a specific emphasis on GPU computing, InfiniBand networks, and the KVM/QEMU stack. Your role will involve working closely with hardware virtualization and device emulation technologies to ensure high performance and security in multi-GPU, HPC environments. You will analyze, troubleshoot, and refine our infrastructure to support new hardware, optimize system performance, and automate fault detection and resolution within complex systems.

Join a Leading Global SaaS Company | Backed by $28M Series B Funding | Fully Remote or Hybrid Work Recognized as the #1 AI Business Communication PlatformAbout CloudTalkWith a recent investment of $28 million in Series B funding from esteemed investors including KPN Ventures, Lead Ventures, Point 9, and HenQ, CloudTalk is revolutionizing the way businesses communicate. Our AI-driven platform empowers over 4,000 sales and support teams to enhance customer experience and drive revenue growth.Our solutions cater to organizations of all sizes, from dynamic startups like Deel to industry giants such as Nokia, Glovo, and Rakuten. CloudTalk allows businesses globally to engage in meaningful conversations while managing calls and messages seamlessly from a single interface.We are dedicated to creating an integrated ecosystem for sales and customer service communication, enabling professionals to engage in productive and impactful dialogues.Your Challenge:We are on the lookout for a Senior Fullstack Developer who will play a pivotal role in creating new systems from the ground up, enhance performance across iterations, and contribute to the growth of our prestigious clients, including Nokia, Glovo, and GoFluent.You will have the opportunity to work on greenfield projects and improve existing applications, ensuring our users derive maximum value from CloudTalk. We seek a detail-oriented, proactive, and self-motivated individual who can foresee potential challenges, devise solutions, and deliver clean, efficient code. Collaboration is key in our remote environment; we operate synchronously, fostering an atmosphere of teamwork as if we were all in the same room. We aim to nurture a future tech lead, so a growth mindset is essential.Your Responsibilities:You will face real-world challenges daily, ranging from customer-facing issues to developing new features. You will scope, design, and deliver systems end-to-end, with a constant focus on performance, scalability, and maintainability.What You Can Expect:Develop greenfield projects while continuously enhancing existing systemsDesign and implement microservice-based architecturesPrioritize system quality, reliability, and performanceContribute to technical decision-making and feature planningDraft and review technical designs, proactively identifying opportunities for improvementStay informed on modern technologies and incorporate them into your workCollaborate closely with teammates in a highly synchronous remote settingWhat Makes You a Great Fit:Strong programming skills, with a knack for writing clean, maintainable, efficient, reliable, and secure codeA genuine curiosity and eagerness to learn new technologies and engineering methodologiesExperience in developing with Node.js and AngularProficiency in both front-end and back-end developmentExcellent problem-solving skills and ability to work collaboratively in a team

Apify builds tools that let people and organizations automate online tasks, extract web data, and use AI agents to get more done. The company believes that repetitive digital work, like filling out forms, copying data, or searching for visual details, should be handled by machines so people can focus on more meaningful problems. Web automation helps users in practical ways: some automate unsubscribing from services to save money, others collect large datasets for AI training, consumer protection, or even tracking missing children. Apify also supports AI chatbots with relevant data and explores new ways to connect with generative AI platforms. To keep advancing this mission, Apify is hiring a Senior Backend Engineer focused on proxy infrastructure and unblocking. This role is based in Prague. What You Will Do Design and build bots that imitate real user actions to automate online processes. Work closely with a small, skilled team of developers. Improve Apify Proxy and related backend technologies. About the Role As anti-bot systems evolve, Apify needs to keep its scraping infrastructure ahead of the curve. This engineer will strengthen Apify Proxy, research anti-scraping defenses, and create internal tools using browser fingerprinting, human-like interaction patterns, and session management to keep data flowing smoothly. The team values engineers who enjoy solving tough technical problems and want to contribute to open-source proxy libraries. Location Prague

Join Zeta Global as a Senior Software Engineer specializing in Real-Time Ad Serving. In this role, you will leverage your expertise to develop and optimize our advertising technologies, ensuring the delivery of high-performance solutions that meet our clients' needs. You will collaborate with cross-functional teams to architect and implement scalable systems that drive business growth.

Pure Storage is building a new Data Platform Engineering function within its Infrastructure Shared Services (ISS) group in Prague. This team is responsible for creating a unified data platform that enables consistent, secure, and efficient data-centric services across the company. The goal is to deliver a seamless developer experience and provide clear ownership and protection for data, supporting teams as they adapt to evolving business and technology needs. As a Senior Data Platform Engineer, the focus will be on designing and managing a reliable, scalable, and intelligent data platform. This work supports fast, data-driven decisions and encourages a culture of innovation and accountability. What you will do Design, build, and manage core data platform services to support data ingestion, modeling, querying, and publishing. Architect a multi-engine environment using technologies such as Trino/Starburst, Dremio, ClickHouse, and Postgres/pgLake, with an Iceberg-based lakehouse at the center. Prioritize interoperability, operability, and security. Drive platform evolution by experimenting and evaluating performance, reliability, and cost, then standardizing effective solutions. Build lasting corporate knowledge through strong defaults, clear documentation, and user-friendly interfaces. This role is based in Prague, Czech Republic, and offers the chance to collaborate with experienced engineers while shaping the future of data infrastructure at Pure Storage.

Apify builds automation tools, AI agents, and web scraping technology to help people get more from the web. The goal: let machines handle repetitive online tasks, so people can focus on work that matters. Everyday chores like filling out forms, building large spreadsheets, or searching through countless videos for a single image are handled by Apify’s platform. Automation here is more than convenience, it can save money, collect data for AI, protect consumers, and even support efforts to find missing children. The team also creates AI chatbots with the right context for smart conversations and explores new ways to work with generative AI tools such as ChatGPT. What You'll Work On Improve and scale Apify’s core web scraping and automation systems, which run on AWS. Work closely with a small, experienced group of engineers from different backgrounds. Design and build new features while solving real scalability problems. Contribute to a platform built by developers, for developers. The team uses Apify’s own tools daily and is committed to open-source, sharing code on GitHub and welcoming pull requests. Role Details Title: Senior Backend Engineer for Developer Platform Stack: Node.js, TypeScript Location: Prague