Senior Backend Engineer

Join Apify as a Cloud Infrastructure Engineer and play a pivotal role in designing, implementing, and maintaining robust cloud infrastructure solutions. You will work with cutting-edge technologies to enhance our cloud capabilities, ensuring reliability, scalability, and security of our services. Collaborate with a talented team to drive innovative solutions…

Oddin.gg stands at the forefront of esports data science, recognized by Deloitte as the fastest-growing tech company in Central Europe for 2024. We provide innovative solutions for esports betting, specializing in popular titles such as Dota2 and League of Legends, as well as major simulators like FIFA. Our unique partnerships enable us to develop advanced mathematical models for predicting match odds, culminating in our award-winning BetBuilder product that transforms the esports betting landscape.With a dynamic team of over 200 professionals located in the Czech Republic and throughout Europe and Asia, Oddin.gg is rapidly expanding. Now, we invite you to be part of our journey! Your RoleContribute to AWS Architecture: Collaborate in designing and optimizing our AWS infrastructure (EC2, ECS, Kafka, RDS, Redis) to ensure scalability, reliability, and cost-effectiveness.Implement Infrastructure Automation: Utilize tools like Terraform or CloudFormation to automate deployments and maintain consistency across environments.Optimize Performance & Cost: Help configure systems to manage traffic spikes while optimizing resource use and budget. Provide insights on capacity planning and cost-efficiency strategies.Support Developer Experience: Establish and maintain effective CI/CD pipelines. Work closely with software engineers to streamline deployment processes and enhance productivity.Troubleshoot & Improve Systems: Identify and resolve issues to improve uptime, performance, and maintainability of systems.Knowledge Sharing & Collaboration: Collaborate with peers to share knowledge, document best practices, and continuously enhance team processes and technical standards.Your ProfileAWS Proficiency: Strong hands-on experience with core AWS services (EC2, ECS, RDS, ElastiCache/Redis, Kafka) and familiarity with designing and operating production-scale workloads.IaaC & Automation: Proficient in Terraform, CloudFormation, or similar frameworks, with experience in automating tasks for reliable deployments.CI/CD Fundamentals: Understanding of CI/CD practices (e.g., Jenkins, GitHub Actions) to support efficient build, test, and deployment cycles.High-Performance Systems: Exposure to distributed system concepts including load balancing, caching, and more.

Join us in a thrilling phase of technological advancement as we revolutionize the data storage sector. At Pure Storage, you will lead with innovative ideas, grow alongside us, and collaborate with some of the brightest minds in the industry.If you are ready to harness limitless opportunities and make a significant impact, we invite you to be part of our team.THE ROLEIn a world dominated by cloud computing, the reliability of cloud platforms is essential. As a Site Reliability Engineer (SRE), you will play a pivotal role in enhancing the reliability of our cloud infrastructure and services. As Pure Storage transitions to a cloud-first approach, we are on the lookout for SREs who can lead our cloud-centric transformation across the engineering organization. This team is dedicated to achieving flawless uptime, effortless scalability, observability, and unparalleled availability.As a member of our globally distributed SRE team, you will work in close collaboration with engineering teams across the US and Europe to design, automate, and manage the services our customers depend on every moment. This position is perfect for those eager to shape cloud architecture, drive operational excellence, and establish scalable, observable systems from the ground up.

Join us at the forefront of technology as we revolutionize the data storage landscape. At Pure Storage, you'll unleash your creativity, evolve with our dynamic team, and collaborate with the brightest minds in the industry.This is the essence of impactful work—transformative contributions that drive the tech sector forward. If you are ready to embrace endless possibilities and make your mark, we invite you to be part of our journey.THE ROLEIn your capacity as the Product Manager for Cloud Infrastructure, you will spearhead the development of the Everpure Platform, enhancing its scalable backend and real-time data architecture. You will be responsible for shaping the roadmap of vital cloud-native services, partnering closely with our engineering teams to execute high-performance messaging and data lake functionalities. This role is crucial for translating intricate technical requirements into dependable platform features that empower our next-generation SaaS solutions globally.WHAT YOU'LL DODefine and Execute Platform Strategy: Lead the roadmap for cloud infrastructure and data services, ensuring architectural scalability aligns with long-term business goals and customer needs for the Everpure Platform.Drive Technical Excellence: Champion initiatives in telemetry and data pipelines, leveraging data-driven insights to manage KPIs for reliability and uptime while ensuring operational readiness.Orchestrate Cross-Functional Collaboration: Serve as the primary liaison between business objectives and technical execution, collaborating with Engineering and Security to deliver reusable, high-impact platform services.Enable Developer Innovation: Cultivate a unified infrastructure strategy that aligns platform priorities with broader business objectives.

Join us at the forefront of technological innovation as we revolutionize the data storage landscape. By joining our team, you will be at the helm of groundbreaking initiatives, collaborating with some of the most brilliant minds in the industry.This is your chance to engage in transformative work that defines the essence of the tech sector. If you are eager to embrace limitless opportunities and make a significant impact, we invite you to apply.THE ROLEEverpure Cloud Azure Native is operational and readily accessible; we have successfully launched our initial service version and are committed to continual improvements each quarter. Our focus is on broadening use cases, penetrating new markets, and enhancing reliability and developer experience.The Foundation team manages a Go-based control-plane service that streamlines how clients utilize enterprise-grade block storage natively within Azure. Our tech stack is modern, incorporating Temporal and other platform services for workflows, automation, and observability. This role involves contributing to a cloud service that is customer-facing, meaning your contributions directly influence how clients deploy, scale, and manage storage within their Azure environments.This is a distinctive opportunity to engage with a core storage service within a leading public cloud, collaborating closely with Microsoft. You will design and enhance APIs and service behaviors that directly impact actual workloads while working in tandem with engineers from both organizations.We prioritize speed without compromising customer experience: maintaining clear API contracts, durable interfaces, comprehensive test automation, and CI/CD practices are integral to our process. If you're passionate about owning services from inception to deployment, tackling real-world challenges in distributed systems within the public cloud, and witnessing your efforts reflected in the experiences of Azure customers, this is the ideal environment for you.

Join us at the forefront of technology as we revolutionize the data storage industry. At Pure Storage, you will engage in innovative thinking, collaborate with the brightest minds in the field, and grow alongside us.Our mission is to create transformative solutions that empower businesses to harness the full potential of their data. If you are ready to embrace limitless opportunities and make a significant impact, we invite you to be part of our journey.In the current landscape, data is the new oil. For businesses aiming to maximize their data usage, establishing a robust infrastructure for data storage and querying is paramount. This is where Everpure's advanced hardware and software solutions come into play, unlocking the maximum value from your data.THE ROLEAs a Site Reliability Engineer at Everpure, you will oversee the infrastructure, internal tools, and production services critical to our operations. You will collaborate with all internal engineering teams to ensure the reliability of services that support the development of innovative products and features across various environments, from data centers to public cloud platforms.Your mission as a Reliability Engineer will involve redefining the resiliency of Everpure's vital infrastructure applications. You will take the lead in designing and implementing advanced observability solutions, shaping the future of application data management and incident response at Pure, utilizing cutting-edge technologies and AI to streamline engineering processes.We are seeking engineers with a dual focus on software and systems skills, who are passionate about reliability, performance, and efficiency, and who possess experience in developing tools, services, and automations to enhance production services.WHAT YOU'LL DODesign, operate, maintain, and troubleshoot enterprise systems, including databases, message queues, APIs, and distributed applications, utilizing data metrics such as SLOs and error budgets.Establish sustainable incident response practices and conduct blameless postmortems to mitigate future issues.Support services pre-launch through system design, software platform development, capacity planning, and launch reviews.Sustainably scale systems through scripting and automation, continuously improving operational reliability and efficiency.Collaborate across teams and time zones to deliver high-quality outcomes for our customers.

Join us at the forefront of technological innovation as we revolutionize the data storage industry. At Pure Storage, you’ll lead with creative solutions, grow alongside industry experts, and be part of a team that is redefining what’s possible.If you’re eager to make a meaningful impact and embrace limitless opportunities, we invite you to become a part of our dynamic organization.THE ROLEAs a Site Reliability Engineer at Pure Storage, you will play a pivotal role in enhancing the performance and stability of our essential engineering infrastructure and production services globally. This hybrid role combines software expertise and systems knowledge, where you'll take ownership of the reliability and operational excellence of core applications driving Pure’s innovative offerings. You will have the unique opportunity to set benchmarks for operational efficiency through automation, collaborative postmortems, and ambitious service level objectives alongside your engineering peers.WHAT YOU'LL DOEnsure exceptional service reliability for our cloud platforms and infrastructure by implementing comprehensive monitoring, proactive incident response, and conducting thorough root cause analysis (RCA) in a 24x7 environment.Transform operational practices by identifying, designing, and implementing automated solutions for manual cloud service operations and deployment, significantly boosting efficiency and minimizing human error.Collaborate with development teams to integrate SRE principles early in the development lifecycle, defining enhancements to service architecture that promote high availability, scalability, and compliance with established SLAs.Enhance the observability stack by configuring and refining service health monitoring, collecting critical metrics, and developing effective alerting systems to maintain comprehensive insight into system performance.Champion modern cloud operations technologies by exploring and implementing new tools for Infrastructure as Code (IaC), container orchestration, and high-availability (HA), continuously optimizing the reliability and scalability of our cloud services.

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

About OutreachFounded in 2014, Outreach is the premier AI Revenue Workflow Platform designed to empower sales leaders with unparalleled visibility into account performance, enhanced insights, and precise forecasting across all go-to-market teams. Our innovative use of agentic AI enables automation across hundreds of sales scenarios, from prospecting to renewals, allowing sales professionals to concentrate on strategic initiatives. Trusted by industry giants such as SAP, Siemens, Snowflake, ZoomInfo, and Verizon, Outreach is transforming how global organizations drive their revenue teams. Discover more at www.outreach.io.About the TeamThe Compute, Observability and Reliability (COR) team is dedicated to delivering robust, scalable, and cost-effective infrastructure services that empower Outreach engineering teams to deploy and manage enterprise-grade cloud solutions. As part of the Foundations organization, we focus on engineering enablement, encompassing infrastructure, services, storage, tooling, documentation, and processes. COR collaborates with various squads across the organization to optimize infrastructure costs and engineering efficiency while providing systems that facilitate scaling our application platform across diverse geographies.The RoleAs a Senior Staff Site Reliability Engineer (SRE) within the COR team, you will play a pivotal role in designing and maintaining our Kubernetes platform, managing cloud configurations, and overseeing the majority of Outreach’s infrastructure. Each SRE is expected to empathize with our internal customers (engineers) and prioritize the performance and reliability of the systems we manage. Specifically, the Senior Staff SRE is expected to be fully independent, capable of driving medium-scale technical projects autonomously.LocationThis position is primarily based in Prague, but we offer remote work flexibility within the Czech Republic. To enhance team cohesion, we organize monthly in-person meetups at our main office. Local candidates in Prague are encouraged to attend these gatherings.

Mirantis is seeking a highly skilled Senior DevOps Engineer who will spearhead the design, implementation, and continuous enhancement of our customer infrastructure and CI/CD pipelines. This pivotal role involves collaboration with diverse cross-functional teams to ensure high system performance, scalability, and security. In addition to your technical expertise, you will also mentor junior team members, champion automation initiatives, and actively participate in strategic decision-making concerning infrastructure and deployment processes. This opportunity is perfect for a seasoned professional with extensive experience in cloud technologies, containerization, scripting, and DevOps best practices.Main Responsibilities:Design, deploy, and manage customer infrastructure across various cloud providers and bare metal environments.Architect and oversee Kubernetes clusters for applications utilizing microservices architecture.Develop and refine CI/CD pipelines to facilitate smooth software delivery.Design, monitor, and maintain development, staging, and production environments.Provide knowledge transfer to customers during deployment projects.Collaborate with geographically distributed international teams to address technical challenges and improve processes.Mentor and nurture the growth of fellow DevOps Engineers.Contribute to the Mirantis deployment knowledge base.Continuously enhance tools and technologies.

Why Choose Nebius?Nebius is pioneering a revolutionary wave in cloud computing tailored for the global AI economy. We equip our clients with innovative tools and resources designed to tackle real-world challenges and revolutionize industries, all while minimizing infrastructure costs and the necessity for extensive in-house AI/ML teams. Our team operates at the forefront of AI cloud infrastructure, collaborating with some of the most adept and visionary leaders and engineers in the domain.Our Work EnvironmentHeadquartered in Amsterdam and publicly traded on Nasdaq, Nebius boasts a worldwide presence with R&D centers across Europe, North America, and Israel. Our dynamic team consists of over 1400 professionals, including 400+ highly skilled engineers with extensive expertise in both hardware and software engineering, as well as an in-house AI R&D division.The RoleWe are seeking a talented Backend Engineer to play a crucial role in the development of our hyperscaler platform.

At JetBrains, we are passionate about code. Since our inception in 2000, we have dedicated ourselves to developing the strongest and most effective developer tools available. Our innovative solutions automate routine checks and corrections, accelerating production and empowering developers to innovate, explore, and create.About the InitiativeJetBrains is transforming from standalone developer tools to a unified, AI-native platform for software development.AI is evolving from a mere assistant within the editor to an essential participant in software planning, building, reviewing, and operating across teams and organizations. This evolution presents new challenges that cannot be addressed by individual tools alone, including governance, security, cost management, observability, and cooperation between humans and autonomous agents.Our mission is to establish a platform that facilitates the adoption of AI in software development in a structured, scalable, and economically efficient manner, without confining companies to closed ecosystems.We are constructing a foundation that unifies developer workflows, team collaboration, and organizational oversight into a coherent system.This platform will act as the execution and governance layer for AI-driven development, tightly integrated with developer tools while designed for cross-team, product, and environmental compatibility.This initiative represents a long-term strategic investment for JetBrains and is a cornerstone of our vision for the future of software development. The RoleWe are seeking a Principal Engineer (JetBrains Cloud Platform, Developer Experience) to spearhead significant enhancements to the development experience across the JetBrains Cloud Platform (JCP).This position is pivotal in enhancing the productivity of JCP engineers through improvements to build systems, CI/CD pipelines, local development workflows, tooling infrastructure, and AI pipelines. You will oversee the developer experience from the local development, build, and testing stages to the transition of code through CI to production. Given the rapid growth of this platform, numerous workflows and processes are still in development. You will define what an exceptional development experience entails and guide the organization toward achieving it. As part of our team, you will:Develop and implement strategies for enhancing the developer experience across the entire JCP platform.Optimize build systems (such as Gradle and Nx) for improved speed, caching, and reliable reproducibility at scale.Establish AI development pipelines to facilitate innovation.

Why Join Nebius?Nebius is at the forefront of a transformative era in cloud computing, dedicated to empowering the global AI economy. We provide the innovative tools and resources needed by our clients to tackle real-world challenges and revolutionize industries without incurring hefty infrastructure costs or necessitating the establishment of large in-house AI/ML teams. Our workforce operates at the leading edge of AI cloud infrastructure, collaborating with some of the most seasoned and creative leaders and engineers in the sector.Our Work EnvironmentWith our headquarters in Amsterdam and a presence on Nasdaq, Nebius boasts a worldwide reach with R&D hubs across Europe, North America, and Israel. Our team consists of over 1,400 employees, including more than 400 highly skilled engineers who possess extensive expertise in both hardware and software engineering, complemented by an in-house AI R&D division.About the Role:Token Factory is a key component of Nebius Cloud, recognized as one of the largest GPU clouds globally, operating tens of thousands of GPUs. We are developing an inference platform that streamlines the deployment of various foundational models—be it text, vision, audio, or the latest multimodal architectures—ensuring they are fast, reliable, and easy to deploy at an enormous scale.

Why Join Nebius?Nebius is pioneering a transformative era in cloud computing, dedicated to empowering the global AI economy. We provide innovative tools and resources that help our clients tackle real-world challenges and revolutionize industries without incurring hefty infrastructure costs or assembling large in-house AI/ML teams. Our team operates at the forefront of AI cloud infrastructure, collaborating with some of the most seasoned and inventive leaders and engineers in the industry.Work EnvironmentHeadquartered in Amsterdam and publicly listed on Nasdaq, Nebius boasts a worldwide presence with R&D hubs in Europe, North America, and Israel. Our diverse team of over 1,400 employees includes more than 400 highly skilled engineers who possess extensive expertise in both hardware and software engineering, complemented by a dedicated in-house AI R&D team.The RoleWe are seeking a Senior Hypervisor Engineer to play a vital role in the development of our hyperscaler platform. The Hypervisor team is responsible for enhancing the Cloud platform components that directly impact the KVM hypervisor and QEMU device emulator. We delve deep into the intricacies of hardware virtualization and device emulation, ensuring optimal performance and robust protection against untrusted code. In this role, you will work on significant extensions for the QEMU/KVM virtualization stack, collaborating closely with the open-source community.Your Responsibilities Will Include:Optimizing I/O for emulated disk and network devicesIntegrating the hypervisor with other platform services and storage solutions for user dataEfficiently allocating resources among virtual machinesEnhancing guest system supportPushing the boundaries of open-source virtualization

Join AFRY as a Track Specialist, where you will play a pivotal role in developing and maintaining railway infrastructure. As part of our dynamic team in Prague, you will contribute your expertise to enhance the quality and safety of railway systems.

Why join Nebius?Nebius is at the forefront of a revolutionary shift in cloud computing, dedicated to empowering the global AI economy. We provide innovative tools and resources that enable our clients to tackle real-world challenges and revolutionize their industries without incurring substantial infrastructure costs or the necessity of assembling extensive in-house AI/ML teams. Our workforce operates on the cutting edge of AI cloud infrastructure, collaborating with some of the most seasoned and creative leaders and engineers in the industry.Our Work EnvironmentHeadquartered in Amsterdam and publicly traded on Nasdaq, Nebius boasts a worldwide presence with R&D centers across Europe, North America, and Israel. Our team consists of over 1,400 professionals, including more than 400 highly skilled engineers with profound expertise in both hardware and software engineering, complemented by an in-house AI R&D team.As part of Nebius Cloud, one of the largest GPU clouds globally, the Token Factory team operates tens of thousands of GPUs. We are developing an inference platform designed to deploy a variety of foundation models — including text, vision, audio, and cutting-edge multimodal architectures — quickly, dependably, and effortlessly at scale. To achieve this goal, we are seeking an engineer capable of ensuring the platform operates flawlessly under heavy loads and can recover seamlessly from unexpected issues.In this position, you will take ownership of the reliability, performance, and observability of the complete inference stack. Your day may start with designing and refining telemetry pipelines — turning hundreds of terabytes of signals into actionable insights through metrics, logs, and traces. You might also optimize Kubernetes autoscalers for enhanced GPU efficiency, create Terraform modules that incorporate resilience into every new cluster, or strengthen our request-routing and retry logic to ensure that transient failures remain unnoticed by users. When incidents occur, you will utilize the automation and runbooks you’ve developed to swiftly detect, isolate, and address issues, while fostering a post-mortem culture to prevent future occurrences. All these efforts are directed towards a singular objective: achieving smooth platform scaling while meeting rigorous cost and reliability targets.Success in this role requires a deep understanding of Kubernetes, Prometheus, Grafana, Terraform, and the principles of infrastructure-as-code. You should be comfortable scripting in Python or Bash, grasp the intricacies of alert design and SLOs for high-throughput APIs, and have enough production experience to recognize how distributed back-ends can fail in real-world scenarios. Experience managing GPU-intensive workloads — whether with vLLM, Triton, Ray, or a similar accelerator stack — will be advantageous, as will a background in MLOps or model-hosting platforms.

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.

Join AFRY as a Project Manager within our Transportation Infrastructure Design team in Prague. In this pivotal role, you will lead and manage infrastructure projects, ensuring they are delivered on time, within scope, and within budget. You will work closely with clients, stakeholders, and multidisciplinary teams to develop innovative solutions that enhance transportation efficiency and sustainability.

Our PurposeAt SentinelOne, we are motivated by a strong purpose: to empower those who safeguard our future. As AI transforms how organizations develop, operate, and innovate, the imperative to protect them intensifies. Joining SentinelOne means your contributions will help secure global enterprises, vital infrastructure, and the technologies that will define tomorrow. If you seek meaningful challenges with a tangible, global impact, you will discover your purpose here.About UsSentinelOne stands at the forefront of AI and cybersecurity, pioneering a revolutionary operational model for security. Our AI-native platform integrates protection across endpoints, cloud, identity, data, and AI systems, delivering autonomous detection and response with remarkable speed and clarity. By leveraging real-time analytics, smart automation, and a consolidated data foundation, we minimize distractions, simplify complexities, and empower security teams to focus on what matters most.Our teams consist of builders, problem-solvers, and innovators dedicated to shaping the future of security. If you are excited to tackle challenging problems alongside skilled, mission-driven individuals, we welcome you to help us construct a safer future for humanity.What Are We Looking For?We seek individuals who are insatiably curious and dedicated to continuous learning. AI is revolutionizing every aspect of our business, and we empower every team member, regardless of their role or level, to develop fluency in AI tools and concepts. Those who thrive here are proactive in seeking innovative solutions, experimenting thoughtfully, and applying their insights to achieve superior outcomes.As a Senior Software Engineer, you will be responsible for the complete development process of new agent capabilities, from researching Linux and cloud security technologies to designing detection strategies and deploying them at scale. You will engage with kernel-level components, user-space engines, and cloud-native security features, addressing intricate system engineering challenges.Your contributions will fortify the security of Linux and cloud workloads utilized by hundreds of thousands of users worldwide. We are looking for engineers with expertise in Linux and/or cloud security who can innovate from the ground up and propel scalable capabilities across our offerings.What Will You Do?...