Senior Backend Engineer

Why Join NebiusNebius is at the forefront of revolutionizing cloud computing to empower the global AI economy. We provide innovative tools and resources that enable our clients to tackle real-world challenges and revolutionize industries, all while minimizing infrastructure costs and avoiding the need for extensive in-house AI/ML teams. Our team collaborates…

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.

Pure Storage is hiring a Lead Technical Support Engineer in Prague, Czech Republic. This position blends technical troubleshooting with daily team leadership. The role centers on managing support operations, guiding engineers, and serving as the primary escalation point for complex incidents involving Kubernetes, Linux, and cloud infrastructure. Team Leadership and Operations Oversee the daily support queue, prioritize tickets, and assign tasks based on team strengths to keep workloads balanced. Monitor service level agreements (SLAs) to ensure response and resolution targets are met, including during shift changes and across regions. Mentor junior engineers by providing technical guidance and reviewing scripts or configurations. Act as the main escalation contact for unresolved tickets or dissatisfied customers before issues are passed to Engineering. Identify workflow gaps, update support procedures, and maintain the knowledge base and runbooks. Advanced Technical Troubleshooting Perform root-cause analysis using logs, traces, and dumps for platforms in VPC, private cloud, and on-premises data center environments. Resolve connectivity issues across firewalls, hybrid cloud setups, and Kubernetes clusters. Work closely with Engineering and DevOps to reproduce bugs, test hotfixes, and support product reliability improvements.

Wrike stands as the premier work management platform designed for teams and organizations striving for enhanced collaboration, creativity, and achievement every day. Our platform unifies all work processes and teams, simplifying complexities, boosting productivity, and allowing individuals to concentrate on their most meaningful tasks. Our Vision: A world where everyone can focus on their most meaningful work, together. About the Role: Join Wrike's Backend Reliability (BRE) team, a crucial component of our backend infrastructure and the guardian of our uptime. We aim to achieve and maintain 99.99% availability while developing the tools, components, and safety nets relied upon by our entire engineering organization. As a Senior / Staff Backend Engineer on this team, you will not merely address tickets but architect essential reliability solutions that influence how Wrike scales, operates, and recovers from failures.Your Impact: Design, build, and maintain vital reliability components including HTTP rate limiters, internal DB schema migration tools, circuit breakers, and distributed Redis-based caching.Troubleshoot intricate production issues, optimize PostgreSQL usage, and ensure our distributed systems remain robust and stable under high load.Lead initial investigations during significant production incidents to identify probable root causes, assess impacts, and suggest mitigation strategies. Long-term solutions are then implemented by the responsible teams based on your insights.Develop scalable, reusable tools and frameworks aiding other engineering teams in building more resilient services.Utilize AI-driven tools and coding agents to expedite development, scrutinize architectures, and automate repetitive or error-prone tasks.Promote reliability best practices across engineering through knowledge sharing, design reviews, and establishing high technical standards.Your Qualifications: Proficient in Java/JVM, with experience in building scalable, high-performance backend systems; willing to adopt other languages as necessary.Strong grasp of distributed systems concepts, including high availability, the CAP theorem, and fault tolerance.Extensive experience with relational databases (PostgreSQL) and non-relational storage solutions.

Keboola has successfully raised $32 million in funding—marking Central Europe’s largest Series A round in 2023. Our mission is to transform how organizations leverage data, achieving results that are ten times more impactful for our clients. As we expand our global footprint, we aim to empower every data team to operate with greater speed, intelligence, and influence. We are currently seeking a talented Senior DevSecOps Engineer to join our Site Reliability Engineering (SRE) team consisting of five skilled engineers within our rapidly growing SaaS company. In this role, you will play a critical part in embedding security practices throughout our development lifecycle, automating security controls, and enabling developers to create secure services at scale. The ideal candidate will possess a strong foundation in software engineering, cloud security, and DevOps practices. You should have a solid understanding of infrastructure as code and container security, and be adept at utilizing AI tools to automate security workflows and expedite problem resolution. Although our team primarily communicates in Czech/Slovak, proficiency in English is essential for collaboration with other teams.

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.

Why Join NebiusNebius is at the forefront of cloud computing, catering to the global AI economy. We empower our clients with innovative tools and resources to tackle real-world problems and revolutionize industries, all while minimizing infrastructure expenses and the necessity for extensive in-house AI/ML teams. Our workforce operates at the cutting edge of AI cloud infrastructure, collaborating with some of the most experienced and visionary leaders and engineers in the industry.Your 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 team, comprising over 1,400 employees, includes more than 400 highly skilled engineers with extensive knowledge in both hardware and software engineering, supported by an in-house AI R&D division.The RoleThe Data Engineering team is tasked with creating and sustaining a robust data infrastructure that drives analytics and business intelligence across Nebius. Our responsibilities include designing and implementing scalable data pipelines, optimizing data storage and processing, and facilitating data-driven decision-making across the organization. This position involves close collaboration with product teams and business stakeholders to ensure alignment with corporate objectives. As a Data Engineer, you will be responsible for designing, building, and maintaining our data infrastructure and pipelines. Your work will include processing large-scale datasets, optimizing data workflows, and enabling analytics capabilities that support our rapidly expanding cloud platform. Your Responsibilities:Design, develop, and maintain scalable data pipelines.Build and optimize data infrastructure.Implement data quality monitoring and validation frameworks.Enhance data storage, processing, and query performance for large-scale datasets.

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 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 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 team and work alongside some of the most experienced professionals in AI cloud infrastructure.Our Work EnvironmentBased in Amsterdam and publicly traded on Nasdaq, Nebius boasts a global presence with R&D hubs across Europe, North America, and Israel. Our diverse team of over 1,400 includes more than 400 highly skilled engineers with profound expertise in both hardware and software engineering, complemented by a dedicated in-house AI R&D team.The PositionWe are currently in search of a Senior Security Solutions Engineer who possesses a robust background in strategic solution evaluation, vendor assessment, and practical Proof-of-Concept (PoC) validation. This pivotal role will serve as a critical link between identifying customer security requirements and executing the implementation of top-tier, enterprise-grade solutions. You will be responsible for defining the criteria, conducting market research, and performing technical validation for all significant security tools and services adopted by our clients.

Role overview DNAnexus seeks a Senior Software Engineer to join the Agentic platform team in Prague. This position centers on developing and refining software that enables genomics and data analysis workflows. The engineering work shapes how researchers and clients interact with complex datasets to address practical challenges. What you will do Design, implement, and deploy new features for the Agentic platform Collaborate with colleagues across teams to deliver solutions tailored to client requirements Support ongoing enhancements so the platform can address emerging needs in genomics and data analysis

Join our innovative team at Speechify as a Platform Software Engineer. In this role, you'll be at the forefront of developing cutting-edge software solutions that enhance our platform's capabilities. You will collaborate with cross-functional teams to design, implement, and optimize our software architecture.We are looking for someone who is passionate about technology and eager to solve complex problems. If you thrive in a fast-paced environment and have a desire to make a significant impact, we would love to hear from you!

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

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 the forefront of technology as we revolutionize the data storage industry! At Pure Storage, we value innovative thinking and collaboration, and we are eager for you to be part of our exceptional team.Embrace the opportunity to engage in work that makes a difference and lets you leave a lasting impact. If you're ready to take on new challenges and grow with us, we would love to have you on board.THE ROLEThe FlashArray team is dedicated to creating high-performance, highly available storage solutions for mission-critical applications. Although FlashArray is a hardware product, the majority of its innovation stems from software, with a large portion of our engineering team focused on software development. Our customers appreciate FlashArray's simplicity, the continuous delivery of new capabilities, and its ability to evolve seamlessly without downtime.Each FlashArray features containerized edge services that facilitate cloud-like connectivity, management, and extensibility. This position centers on integrating these edge services into the FlashArray platform, blending software engineering with expertise in Linux-based systems.WHAT YOU'LL DOTackle and resolve complex technical challenges with a thoughtful and persistent approach.Design and implement algorithms and technologies for high-performance, reliable systems.Take ownership of features from concept through production.Collaborate with teammates to enhance and build systems together.Contribute to customer-focused solutions emphasizing reliability and user-friendliness.Engage in continuous learning and professional growth within a supportive engineering environment.This is primarily an in-office role, so you will be expected to work from our Prague office, in alignment with Pure's policies, except during approved leave or business travel.

Join Our Dynamic Real-Time Engineering Team!We are on the lookout for exceptional Senior Software Engineers to amplify our capabilities. At Cint, our Real-Time Engineering team is a collective of highly skilled individuals who thrive on tackling challenging projects. We pride ourselves on our extensive experience in designing and implementing complex systems that effectively manage unusually high traffic volumes. Our team culture fosters support and collaboration, ensuring every member feels valued. We believe in not just working together but also enjoying social interactions, making our workplace vibrant and enjoyable.Your Role and ResponsibilitiesAs a key member of our results-driven team, you'll find that our focus is purely on product quality and timely delivery. We eliminate workplace politics and distractions, prioritizing the code that directly impacts millions of users daily. You’ll collaborate with other top-notch engineers, ensuring that we collectively deliver a world-class product. The stakes are high; each error or downtime could result in significant financial loss.

Role overview ComplyAdvantage is hiring a Junior Software Engineer for its Prague office. This role centers on building software tools that assist businesses with risk and compliance management. What you will do Collaborate with experienced engineers on various software projects Contribute code and share ideas to improve products that address clients’ compliance needs Grow technical skills through practical work and team collaboration Team culture The engineering team values learning and mutual support. Team members share knowledge, help each other develop, and work together on projects that benefit customers.

Azul seeks a Software Engineering Manager to lead its Optimizer Hub team in Prague. This group develops and refines optimization tools used by clients globally. The manager will play a central role in guiding engineers and ensuring the team's work meets high standards. Role overview This position involves overseeing a team dedicated to building and enhancing software solutions for optimization. The manager will focus on both the technical direction and the growth of team members. What you will do Guide and support software engineers working on optimization solutions Promote technical excellence and encourage knowledge sharing Oversee development and improvement of software tools for the Optimizer Hub Help foster a collaborative and supportive engineering culture Location This role is based in Prague.

Why Join NebiusNebius is at the forefront of cloud computing, empowering the global AI economy. We provide our clients with essential tools and resources to tackle real-world challenges and revolutionize industries without incurring hefty infrastructure costs or needing to develop extensive in-house AI/ML teams. Our team operates at the cutting edge of AI cloud infrastructure, collaborating with some of the most experienced and innovative 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 diverse team of over 1,400 employees includes more than 400 highly skilled engineers with deep expertise in both hardware and software engineering, complemented by an in-house AI R&D team.About the RoleAs part of Nebius Cloud, which operates one of the largest GPU clouds globally—utilizing tens of thousands of GPUs—Token Factory is dedicated to building a high-performance inference and fine-tuning platform that pushes foundational models to their hardware limits. Our commitment is to enhance throughput, reduce latency, and optimize cost-per-token across our expansive GPU resources.Current Projects You Could Contribute To:Inference Optimization: Identify bottlenecks in LLM inference to accelerate production speed. Maximize performance for a variety of LLM architectures at scale (e.g., GPT-OSS, Kimi K2.5, DeepSeek V3.1/V3.2, GLM-5).Inference Engine Support: Implement innovative speculative decoding architectures, optimize components of different LLM designs (dense/MoE, autoregressive/parallel), and contribute to open-source inference engines.Low Precision Training & Inference: Design and operationalize low-precision training (FP8, NVFP4/MXFP4) and inference pipelines to achieve significant improvements in throughput and cost efficiency.