Senior Software Engineer - Agentic Search Runtime

Why Join 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 enable our customers to tackle real-world challenges and revolutionize industries, all while minimizing infrastructure expenses and eliminating the need for extensive in-house AI/M…

Why Join Nebius?At Nebius, we are 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 transform industries without incurring hefty infrastructure costs or needing extensive in-house AI/ML teams. Our workforce operates on the cutting edge of AI cloud infrastructure, collaborating with some of the most experienced and visionary leaders and engineers in the industry.Our Work EnvironmentBased in Amsterdam and publicly listed on Nasdaq, Nebius boasts a global presence with R&D centers throughout Europe, North America, and Israel. Our team exceeds 1,400 talented professionals, including over 400 highly skilled engineers proficient in both hardware and software engineering, complemented by an in-house AI R&D division.The RoleIn an ever-evolving landscape, trust in AI hinges on AI agents being grounded in current, verified real-world data. Search is the cornerstone that enables this reliability. In this pivotal role, you will establish the standards for quality within a search system designed specifically for AI agents from the outset.Your ResponsibilitiesManage end-to-end search-related quality metrics: from their definition and computation to the evolution and transition to next-generation metrics.Design and conceptualize analytics architecture across the entire stack: runtime behavior → data pipelines → metrics → dashboards.Develop and sustain analytics pipelines and tools using Python.Convert product, user, and technical requirements into impactful, actionable metrics.Question existing quality assumptions and advocate for enhanced, more reliable measurements.Collaborate with product managers, engineers, and stakeholders to ensure analytics align with system behavior and business objectives.Diagnose metric anomalies, investigate quality regressions, and recommend data-driven improvements.

Why Join Nebius?Nebius is at the forefront of a transformative wave in cloud computing, dedicated to empowering the global AI economy. We develop innovative tools and resources that enable our clients to tackle real-world challenges while minimizing infrastructure costs and the necessity for extensive AI/ML teams. Our employees are positioned at the leading edge of AI cloud infrastructure, collaborating with some of the most experienced and visionary leaders and engineers in the industry.Our Work EnvironmentWith our headquarters in Amsterdam and a presence listed on Nasdaq, Nebius operates on a global scale, featuring R&D centers across Europe, North America, and Israel. Our diverse team of over 1400 employees includes more than 400 highly skilled engineers with profound expertise in both hardware and software engineering, complemented by a dedicated AI R&D team. The ProductIn an ever-changing landscape, the reliability of AI systems hinges on AI agents utilizing up-to-date, verified real-world data. Our search function is the cornerstone that enables this capability.We are developing a state-of-the-art agent-native search platform tailored specifically for AI systems instead of human users. Our solution offers programmatic, low-latency, and observable search APIs that AI agents leverage to retrieve, filter, and reason over real-world data at scale.The RoleWe are on the lookout for a Senior Software Engineer to contribute to the indexing and data processing layer of our innovative search engine designed for agentic AI consumption. In this role, you will be tasked with developing systems that ingest, process, and organize vast amounts of data into efficient, queryable formats. Your primary focus will be on offline and nearline pipelines, ensuring data freshness, completeness, and accessibility for downstream retrieval systems. You will thrive in an environment where throughput, scalability, and data accuracy are paramount, designing systems capable of managing tens of gigabytes per second across dynamically evolving datasets.

Join Nebius and Shape the Future of AINebius is pioneering a transformative approach to cloud computing, dedicated to empowering the global AI economy. Our mission is to provide the essential tools and resources that enable our clients to tackle real-world challenges and revolutionize industries, all while minimizing infrastructure costs and the necessity of extensive in-house AI/ML teams. Our talented workforce operates at the forefront of AI cloud infrastructure, collaborating with some of the most innovative and experienced leaders and engineers in the industry.Our Work EnvironmentLocated in Amsterdam and publicly listed on Nasdaq, Nebius boasts a global presence with R&D centers across Europe, North America, and Israel. Our diverse team, comprising over 1,400 employees, includes more than 400 highly skilled engineers, equipped with deep expertise in both hardware and software engineering, as well as an in-house AI R&D team.We are on the lookout for a Staff or Principal Applied AI Researcher to join our rapidly expanding team, focused on developing an agent-native search platform—the vital web access layer for AI systems.Unlike traditional search methodologies, we are innovating how AI agents—not humans—access, retrieve, and reason over information available on the internet. As AI increasingly becomes the primary interface for web interaction, this pivotal layer is set to transform the function of conventional search engines.This role involves tackling retrieval and search challenges within entirely new access patterns and scales.Depending on your experience and the responsibilities you take on, this position can be classified at either the Staff or Principal level, granting you ownership over vital aspects of our applied AI research trajectory.You will lead applied research initiatives that directly enhance how AI systems retrieve, ground, and utilize real-world information in production, ensuring that research is closely linked to large-scale deployment.Your ResponsibilitiesEngage in projects at the intersection of search, retrieval, and LLM-based systems, shaping how AI agents engage with the web. This includes designing agent-native retrieval systems (distinct from human search UX), developing systems where LLMs actively query, iterate, and reason over results, and collaborating with cross-functional teams to foster innovation.

At Databricks, we are dedicated to empowering data teams to tackle some of the most pressing challenges in the world — from pioneering the next generation of transportation solutions to fast-tracking medical advancements. Our mission is fulfilled through the development and operation of a world-class data and AI infrastructure platform, enabling our customers to leverage deep data insights to transform their businesses.Founded by engineers and driven by a strong customer focus, we enthusiastically embrace every opportunity to confront technical challenges, whether it’s innovating next-generation UI/UX for data interfacing or scaling our infrastructure across millions of virtual machines. Our journey has just begun.Our engineering teams are tasked with creating highly technical products that address significant real-world needs. We manage and operate one of the most extensive software platforms, consisting of millions of virtual machines, generating terabytes of logs and processing exabytes of data daily. At our scale, we frequently encounter cloud hardware, network, and operating system faults, and our software must adeptly shield our customers from these issues.Unity Catalog serves as our platform's native unified and open governance solution for data and AI, breaking down silos, simplifying governance, and accelerating insights at scale. We are seeking a Senior Staff Software Engineer to lead the technical efforts for Unity Catalog Runtime Enforcement. This role involves building and fortifying the runtime enforcement layer for Unity Catalog, ensuring secure, consistent authorization, and data access across Databricks compute, engines, and cloud environments. This initiative aims to minimize incidents and streamline customer decisions by harmonizing enforcement semantics.

Join our dynamic team at dept as a Senior Paid Search Consultant. We are looking for a passionate individual with extensive experience in managing paid search campaigns to drive impactful results for our clients. In this role, you will strategize, execute, and optimize campaigns across various platforms while collaborating closely with other marketing experts to enhance overall performance.

At JetBrains, we are passionate about crafting exceptional developer tools. Since our inception in 2000, we have dedicated ourselves to creating the most effective and innovative solutions for developers around the globe. With the rise of AI-assisted technology, we are at the forefront of integrating these advancements into our integrated development environments (IDEs). Join our Agentic Models team as a Research Engineer, where you will play a pivotal role in developing multi-step coding agents capable of comprehending extensive codebases, strategizing modifications, utilizing tools, and engaging interactively with users. You will be responsible for designing models, training loops, and evaluation pipelines that drive these intelligent coding agents. Your work will involve merging supervised fine-tuning (SFT) techniques with reinforcement learning (RL) methodologies, coupled with product-oriented evaluations, leveraging our distributed GPU and MapReduce clusters to deploy models across JetBrains products.

Why Join Nebius?Nebius 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 enable our clients to tackle real-world challenges and revolutionize industries without incurring hefty infrastructure costs or the necessity of extensive in-house AI/ML teams. Our team members are at the cutting edge of AI cloud infrastructure, collaborating with some of the most innovative leaders and engineers in the industry.Our Work EnvironmentWith our headquarters in Amsterdam and a listing on Nasdaq, Nebius boasts a global presence with research and development hubs across Europe, North America, and Israel. Our diverse team of over 1,400 professionals includes more than 400 highly skilled engineers with deep expertise in both hardware and software engineering, alongside a dedicated in-house AI research and development team.We are on the lookout for a Senior Applied Machine Learning Engineer to join our rapidly expanding team focused on creating an agent-native search platform for AI systems, which represents the next generation of web access for AI. In this pivotal role, you will design and deploy machine learning models that enhance retrieval, ranking, and indexing at scale, ensuring AI systems can access up-to-date and reliable information in real time. This is a high-impact position working on a production-level system utilized 24/7, addressing challenges similar to those found in large-scale web search.

About the Role bunq is building more than just a banking app. The team aims to change how people experience financial freedom worldwide. As a Paid Search Specialist, this position plays a key part in bunq’s international growth by connecting with people actively searching for better banking options. The focus: shape and execute paid search strategies so bunq stands out as a top choice for those seeking financial services. What You Will Do Drive user acquisition by capturing high-intent traffic from search engines and bringing new customers into the bunq ecosystem. Improve keyword selection, targeting, and ad copy. Balance manual and automated campaign optimization. Run regular audits to keep campaigns effective and traffic quality high. Run ongoing A/B tests and fine-tune every stage of the marketing funnel, from keywords and ads to landing pages and bidding tactics. Focus on lowering CPA and increasing ROI. Analyze campaign data to spot trends and actionable insights. Track performance against key KPIs and report results to guide future paid search strategies. Work with the wider acquisition team to find and test new growth opportunities, such as expanding into new markets, adapting for additional languages, or exploring untapped search platforms. Location This role is based in Amsterdam, Noord-Holland, Netherlands.

Join Our Innovative Messaging TeamWe are seeking a talented Senior Backend Engineer to become a vital part of our Messaging team. This team is responsible for Miro's notification platform, ensuring that users receive relevant, timely, and reliable notifications to enhance their Miro experience. Our scope covers email notifications, in-app alerts, and the robust systems that support them.Our mission lies at the crossroads of product experience and platform reliability. We empower Miro teams to engage with users effectively across multiple channels, minimizing noise and duplication while maximizing clarity. By developing a highly scalable and observable messaging system, we play a crucial role in driving user retention and engagement for millions.Your RoleAs a Senior Backend Engineer, you will help us enhance and scale Miro's messaging and notification capabilities.You will work on high-throughput, event-driven systems that adhere to strict standards for reliability, latency, and accuracy. A strong foundation in software engineering, experience with distributed systems, and a product-oriented mindset are essential, as every notification impacts user trust.You will take ownership of key services, collaborate closely with Product and Platform teams, and establish stable, extensible interfaces that enable Miro teams to deliver meaningful notifications efficiently and securely.Your ResponsibilitiesDesign and implement scalable, fault-tolerant backend services for email and in-app notifications.Develop and enhance event-driven, asynchronous pipelines that process large volumes of product and user events.Create high-quality technical designs and produce clean, maintainable, self-documenting production code.Ensure correctness, idempotency, deduplication, and delivery guarantees across notification workflows.Optimize performance, latency, and scalability while upholding reliability during peak usage.Assume long-term ownership of critical systems and processes.

rituals1 is looking for a Paid Search Specialist in Amsterdam to guide digital marketing efforts. This position centers on planning, running, and refining paid search campaigns that help bring in traffic and boost conversions. Role overview The Paid Search Specialist will take ownership of paid search strategy from start to finish. This includes setting up campaigns, monitoring performance, and making adjustments to improve results. Collaboration with other teams is part of the day-to-day, ensuring that search marketing plans fit with broader business goals. What you will do Develop and execute paid search campaigns Optimize campaigns to maximize traffic and conversions Coordinate with cross-functional teams to align search strategy with company objectives Location This role is based in Amsterdam.

Join a dynamic team at Insify, a rapidly growing European insurtech, and take the lead in shaping impactful outcomes.At Insify, we are entrepreneurs at heart, dedicated to creating innovative insurance solutions tailored for other entrepreneurs. We understand the journey of building from the ground up, taking calculated risks, and embracing responsibilities that extend beyond traditional hours.Our mission is both straightforward and ambitious: to revolutionize business insurance, making it 10 times simpler, faster, and fairer for entrepreneurs and SMEs throughout Europe. We eliminate cumbersome paperwork, obscure fine print, and outdated complexities, relying instead on modern software, intelligent automation, and an unwavering commitment to customer satisfaction. As a high-growth scale-up in Europe, we have secured €43M in funding from top-tier investors and aim to lead the global market in digital insurance for entrepreneurs and SMEs, starting from the Netherlands and expanding into France and Germany.We are fundamentally a technology-driven company, crafting our own insurtech platform while leveraging data, automation, and AI to transform the entire insurance process, from underwriting to claims. Our fully digital customer portal, coupled with a strong focus on user experience, is redefining insurance as a simple, transparent, and equitable service.Our leadership comprises seasoned entrepreneurs who have successfully built and scaled businesses, instilling that same drive, urgency, and sense of ownership in everything we do.Our CultureWe are not merely creating a company; we are establishing a category leader, which demands ambition, accountability, and speed.Our culture is characterized by three core principles:High Ownership Team members take full responsibility for their challenges. If something is unclear or broken, we proactively take action to resolve it.High Pace Priorities are dynamic, and decisions are made swiftly. We prioritize momentum and learning over perfection.High Standards Results are valued more than appearances. We focus on outcomes, quality, and commitment to our work.Furthermore, you will not be working in isolation.We believe that exceptional work is the product of close collaboration. Our team engages in face-to-face interactions, challenges each other's ideas, and encourages contributions from all levels, irrespective of title or experience.

airapps is looking for a Search Engine Optimization (SEO) Specialist based in Amsterdam. This position centers on improving the company’s online presence and attracting more organic visitors to its platforms. Role overview The SEO Specialist will play a key part in shaping and executing strategies that support airapps’ business objectives. Working closely with colleagues across different teams, the role requires both technical and collaborative skills to deliver results. What you will do Enhance online visibility for airapps’ digital platforms Drive growth in organic traffic through targeted SEO initiatives Work with cross-functional teams to implement and refine SEO strategies Align SEO efforts with broader business goals Location This role is based in Amsterdam.

Join us at Databricks, where our mission is to empower data teams to tackle some of the world's most significant challenges — from revolutionizing transportation to accelerating medical advancements. We achieve this by developing and operating the premier data and AI infrastructure platform, allowing our customers to harness profound data insights to enhance their businesses. Founded by engineers and driven by a customer-centric philosophy, we eagerly embrace every chance to overcome technical hurdles, whether that's crafting next-generation UI/UX for data interaction or scaling our services across millions of virtual machines. And this is just the beginning. Unlike conventional enterprise software, we create and build innovative SaaS products that delight all stakeholders: decision-makers, administrators, and end-users. As a Senior Fullstack Software Engineer, you will collaborate closely with your team and product management to deliver exceptional user experiences. Here are a few of the dynamic teams you could become a part of: SQL Analytics Console: This new product provides Databricks customers with a top-notch experience for Business Intelligence (BI) and executing SQL workloads directly on the data lake. Our team develops the console for SQL Analytics, where users configure, manage, and monitor their SQL usage.Jobs and Workflows: This team supports all asynchronous customer workloads for Databricks, which constitute the majority of our usage. As this demand has surged, we have restructured the system to enhance stability and scalability, while also introducing exciting new features for advanced workflows and customer observability. This team combines frontend, backend, and reliability engineering skills across various projects.Developer Ecosystem: Focused on enhancing the development experience and best practices with external tools, we oversee the core open-source components of the developer ecosystem: the SDK, CLI, and Terraform.Apps Developer Experience: This team is dedicated to making application development on Databricks seamless and enjoyable. We have built an SDK and services tailored for app developers, including our AppKit. Our Codegen sub-team develops tools that ensure apps function perfectly from the start. We are also working on an MCP server for Cursor/Claude Code and developing Skills.

Why Choose Nebius?Nebius is at the forefront of a transformative wave in cloud computing, dedicated to empowering the global AI economy. We build cutting-edge tools and resources that enable our clients to address real-world challenges and revolutionize industries without incurring hefty infrastructure expenses or the necessity of assembling large in-house AI/ML teams. Our team operates at the pinnacle of AI cloud infrastructure, collaborating with some of the most skilled and visionary 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 workforce of over 1,400 includes more than 400 highly proficient engineers specializing in both hardware and software engineering, complemented by a dedicated in-house AI R&D team.The RoleWe are seeking a talented Senior Backend Software Engineer to contribute to the development of our hyperscaling platform. The majority of our tasks are focused on Golang, with additional responsibilities in Java and Python. You can choose to work from our offices in Prague or Amsterdam, or remotely within Europe.Your Responsibilities Include:Creating fault-tolerant, reliable cloud services such as cloud infrastructure, managed databases, Kubernetes management, billing, monitoring systems, and machine learning services, among others.

Be Yourself at ProtolabsWe embrace diversity and are an equal opportunity employer. We encourage individuals from all backgrounds to apply, even if they don’t meet every single qualification. Your unique perspective can help us grow and innovate.Why Choose Protolabs?As leaders in digital manufacturing, we attract doers, makers, and innovative thinkers who approach their work with an entrepreneurial mindset. Our culture revolves around delivering meaningful work that introduces new products to the market at unmatched speeds. We take pride in our diverse team, which is smart, genuine, humble, and passionate. It’s our people who inspire creativity and make our workplace feel like home.Join Our Team as a Senior Backend Engineer!This position is hybrid and open to candidates located in the Netherlands.The Manufacturing Partner Marketplace is the operational backbone of the Protolabs Network. We oversee the entire order lifecycle, from matching orders to the right manufacturing partners through production and quality control to ensuring timely delivery. Our role is crucial for maintaining seamless operations and customer satisfaction.In this role, you will develop systems that drive the marketplace, including automated auctions, order allocation, supplier tools, production workflows, global logistics, quality control, and internal operations tools. We seek a pragmatic problem solver who thrives in a dynamic environment and takes ownership of both the business challenges and technical solutions.

Established in 2015, Shield AI is an innovative venture-backed company at the forefront of deep-tech, dedicated to safeguarding both service members and civilians through cutting-edge intelligent systems. Our product offerings include the advanced V-BAT and X-BAT aircraft, along with the comprehensive Hivemind Enterprise and Hivemind Vision product lines. With a strong presence across the U.S., Europe, the Middle East, and the Asia-Pacific, Shield AI's technology is pivotal in supporting global operations. For further insights, please visit www.shield.ai. Connect with Shield AI on LinkedIn, X, Instagram, and YouTube. The Senior Staff Engineer for Software Autonomy Applications will leverage their technical expertise to provide crucial support to customers during the deployment and utilization of Shield AI's enterprise software solutions. This role requires close collaboration with clients to fully understand their unique requirements, ensuring seamless product integration for AI and autonomy development initiatives.

About UsAsula is a pioneering bitcoin company dedicated to developing cutting-edge financial products that bridge the gap between bitcoin, blockchains, stablecoins, and traditional finance. Currently, we are focused on our innovative mobile application, Dawn, which empowers users to save and enhance their wealth through bitcoin and stablecoins. In addition to Dawn, our initiatives include enabling seamless bitcoin swaps and credit access for holders of all sizes via onchain protocols.RoleWe are in search of a versatile Senior Software Engineer to join our dynamic team, contributing across the backend stack to breathe life into our products. In this role, you will be expected to:Design and implement robust backend systems that support both user-facing applications (like Dawn) and essential protocol components.Architect scalable and resilient services, including APIs, stateful services, and blockchain data pipelines capable of handling real-world demands.Drive significant architectural enhancements to the codebase while establishing best practices in our evolving organization.Mentor team members to elevate long-term architecture and code quality.QualificationsA minimum of 3 years of hands-on experience as a systems engineer, designing and managing production services with real traffic, preferably in finance, trading, or blockchain sectors.In-depth knowledge of distributed systems, data modeling, and network architecture — with a focus on latency, throughput, and fault tolerance.Proficiency in at least one strongly-typed backend programming language (Rust, Go, or C++) and comfortable navigating various frameworks, APIs, and infrastructure.A genuine interest in bitcoin, blockchains, and onchain finance.Nice to HavesExperience utilizing stablecoins and/or bitcoin in your everyday transactions.Background in developing low-latency systems for trading.

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.

At JetBrains, we are passionate about creating exceptional developer tools. Since our inception in 2000, we have dedicated ourselves to crafting the most robust and efficient tools to enhance developer productivity. Our innovative solutions automate routine checks and corrections, allowing developers to focus on creativity and problem-solving.One exciting initiative within the JetBrains Innovation Hub is the Live Debugger, a groundbreaking product designed for safe, AI-driven debugging of production systems. This tool empowers engineering teams to resolve issues in real-time environments, prioritizing safety, reliability, and security while seamlessly integrating AI capabilities. To see how it works, check out our demo.