Search Quality Analyst at Perplexity | Belgrade

Join Perplexity as a Search Quality Analyst and help us enhance our advanced search technologies. We are seeking a skilled data analyst who will leverage user behavior insights to optimize our A/B testing processes and improve our product offerings. This role involves identifying critical signals in user interactions and transforming data into actionable insights.Key ResponsibilitiesCreate data-driven insights from user interactions to guide our product strategy and boost user engagement.Develop and test hypotheses through the design, execution, and analysis of A/B tests.Define key performance metrics and visualizations for ongoing tracking and present them through interactive dashboards.Innovate new data pipelines to enhance search ranking quality, including discovering new signals, generating metrics, and creating data labeling frameworks that incorporate both human and LLM feedback.Required QualificationsMinimum of 4 years of experience in data analysis or a related field.Proven experience with search-related products, focusing on online metrics and A/B testing analysis.Strong proficiency in Python, with the capability to produce production-grade code.Expertise in SQL for data manipulation and analysis.Familiarity with Business Intelligence (BI) tools for data visualization.Solid understanding of statistical concepts and methodologies.Preferred QualificationsExperience with Apache Spark for big data processing.Familiarity with Databricks for collaborative data science.Experience in developing LLM-as-a-judge systems to enhance analytics.

Join the dynamic team at Perplexity AI as a Search Rust Engineer, where your expertise will drive the evolution of AI-powered search technologies. In this role, you will focus on optimizing every aspect of our search performance, ensuring that our systems are robust, scalable, and reliable.As a key player, you will:Design and enhance ultra-low-latency search infrastructure utilizing Rust programming.Profile and instrument services to continuously reduce response times as we scale.Develop and sustain distributed backend components that drive real-time search and retrieval.Work closely with product and infrastructure teams to craft systems that achieve exceptional query performance.Leverage advanced concurrency, memory management, and network programming techniques for optimal throughput.Monitor and fine-tune production workloads to maintain reliability under high traffic conditions.Participate in code reviews and mentor peers in high-efficiency Rust development practices.

Join Perplexity as a Product Data Scientist, where you will play a pivotal role in advancing our cutting-edge search technologies. Your expertise in analyzing user behavior will be instrumental in extracting valuable insights from A/B testing data, enabling us to refine our products and enhance user satisfaction.Key ResponsibilitiesGenerate actionable data-driven insights from user interactions to shape our product strategy and promote user adoption.Develop and validate hypotheses by designing, executing, and interpreting A/B testing methodologies.Identify key performance metrics and create visual dashboards for effective tracking and reporting.Architect new data pipelines to enhance ranking quality, including the discovery of new signals, metric production, and the development of data labeling pipelines utilizing human and LLM feedback.

At Perplexity, we are in search of a passionate Backend/Infrastructure Engineer Intern to join our dynamic and impactful team dedicated to enhancing our search capabilities. This role presents a unique opportunity to collaborate with seasoned engineers in designing, building, and maintaining the robust infrastructure and backend services that ensure Perplexity remains fast, reliable, and scalable.Internship Duration: 12 - 24 weeks, full-time, in-person at our Belgrade office.Key Responsibilities:Construct and uphold infrastructure that drives high-performance search systems, with guidance from senior engineers.Design and implement internal tools and automation to enhance developer workflows and operational productivity.Aid in the design, deployment, and monitoring of cloud-native systems utilizing AWS.Contribute to the optimization of CI/CD pipelines, testing infrastructure, and release processes.Debug and enhance Linux-based services, containers, and backend systems.Participate in coding for products, primarily utilizing Rust, Go, or C++.Qualifications:Currently pursuing a degree in Computer Science, Engineering, or a related field, or possess equivalent practical experience.Familiarity with at least one programming language such as Go, Rust, or C/C++, gained through academic coursework or personal projects.A basic understanding or exposure to cloud infrastructure (e.g., AWS) and Linux systems is advantageous, though not mandatory.A keen interest in infrastructure, distributed systems, or backend engineering, along with a willingness to learn about CI/CD, monitoring, and performance optimization.A proactive, inquisitive learner who thrives in a fast-paced, innovative setting.

Join Perplexity as a Senior Infrastructure Engineer and play a pivotal role in transforming how individuals search and engage with the internet. Your dedication and expertise will be essential in delivering a top-tier product. This position uniquely combines infrastructure mastery with software engineering, allowing you to take ownership of the crucial systems that drive our products and development processes.Key ResponsibilitiesConstruct and sustain a robust and scalable infrastructure to enable high-performance search functionalities.Create internal tools and automation processes to enhance developer workflows and operational effectiveness.Architect, deploy, and manage cloud-native systems, primarily utilizing AWS.Enhance and maintain CI/CD pipelines, testing frameworks, and release protocols.Troubleshoot and optimize Linux environments, containerized applications, and backend services.Contribute directly to product codebases, engaging with languages such as Python, Go, and other systems-level languages.QualificationsProven experience in cloud infrastructure (AWS preferred), systems architecture, and automation.Extensive knowledge of Linux internals, including performance optimization and debugging techniques.Demonstrated experience in building or maintaining CI/CD systems and associated tools.Strong proficiency in Python and at least one systems programming language (Go, Rust, C/C++, or Java).Ability to navigate both infrastructure and application-level code seamlessly.A proactive and enthusiastic learner who excels in a dynamic, innovative environment.

Join Perplexity as a Search Machine Learning Engineer Intern and contribute to the development of cutting-edge search technologies focused on retrieval and ranking. Collaborate with seasoned engineers to enhance search quality, experiment with innovative models, and deploy features that significantly affect user interactions with information discovery.Our internship program spans 12 to 24 weeks, requiring full-time, in-person attendance at our Belgrade office.Key Responsibilities:Participate in experiments aimed at enhancing search quality through advanced models, optimized data utilization, and effective evaluation tools, under the mentorship of senior engineers.Design and develop components of our search platform and model stack, including retrieval, ranking, and classification models.Train and evaluate models, including those based on LLM approaches, for various tasks related to retrieval, ranking, and classification.Assist in the deployment and monitoring of search and ranking models to ensure scalability and performance.Contribute to the development and iteration of RAG pipelines for grounding and answer generation.Collaborate with Data, AI, Infrastructure, and Product teams to quickly implement improvements while learning best practices in production machine learning.

At Perplexity, we are on the frontier of innovative search solutions, and we are looking for a talented Senior Machine Learning Engineer to join our dynamic team in Belgrade. Your expertise will play a pivotal role in developing the next generation of sophisticated search technologies, particularly in the areas of retrieval and ranking.Key ResponsibilitiesDrive continuous improvement in search quality using models, data, and advanced tools.Design and implement foundational components of our search platform and model architecture.Train and assess retrieval, ranking, and classification models, including Large Language Models (LLMs).Deploy models, ranging from boosting algorithms to LLMs, ensuring scalability and performance.Develop and refine Retrieval-Augmented Generation (RAG) pipelines for enhanced grounding and answer generation.Collaborate with cross-functional teams, including Data, AI, Infrastructure, and Product teams, to deliver high-quality results swiftly.Required QualificationsStrong grasp of search and retrieval systems, including principles of quality evaluation and associated metrics.Demonstrated success in working on large-scale search or recommendation systems.Self-motivated with a profound sense of ownership and execution.At least 5 years of relevant experience in search or recommendation system projects.

At Perplexity, we are seeking a talented Senior or Expert C++ Developer to become an integral part of our dynamic Search Core team. This pivotal role involves shaping the future of our search technologies and products. You will influence major architectural, design, and implementation decisions that define our technical infrastructure.Key ResponsibilitiesDesign and develop innovative search index storage solutions that encompass both streaming and batch data processing systems, optimized for high-load environments with the capacity to manage billions of web pages.Create foundational core search components, including advanced algorithms for efficient data retrieval and ranking.Maximize hardware performance to ensure optimal system functionality.Address complex challenges related to multithreading, concurrency, and optimization at the system level.Enhance subsystems to ensure reliable and consistent data replication within the core search architecture.Required QualificationsA minimum of 5 years of hands-on experience in C++ programming.Familiarity with Python or other scripting languages.A strong commitment to writing clean, efficient, and scalable C++ code.In-depth knowledge of algorithms and data structures with practical application skills.Comprehensive understanding of multithreading, including various strategies, challenges, and trade-offs.Experience in developing high-load, distributed, and hardware-related services.Expertise in real-time systems development.Preferred QualificationsExperience in building core components for search engines, trading systems, or database management systems.Proficiency with cloud services, Kubernetes (k8s), and AWS infrastructure.

Become a part of Perplexity AI as a Search Golang Engineer and play a crucial role in shaping the future of highly scalable, AI-driven search infrastructure. In this dynamic position, you will utilize your expertise in Golang to create, implement, and manage backend systems capable of efficiently processing millions of queries with unparalleled reliability.Responsibilities:Develop robust and scalable distributed backend services utilizing Golang.Design, enhance, and sustain search infrastructure to accommodate rapid traffic increases.Create cloud-native solutions focusing on horizontal scalability and quick failover capabilities.Establish comprehensive monitoring, autoscaling, and incident recovery mechanisms.Work closely with product, infrastructure, and DevOps teams to optimize throughput and system resilience.Lead improvements in CI/CD processes, automation, and operational excellence for backend systems.Mentor fellow engineers and advocate for scalable design principles throughout the organization.

Join our dynamic Crawler team at Perplexity as a Senior Backend Software Engineer. In this pivotal role, you will be responsible for designing, developing, and managing systems that handle the ingestion, processing, and management of vast web-scale data to support our cutting-edge search technologies. This is a high-impact engineering position that requires a blend of backend and frontend expertise within our data acquisition stack.Key ResponsibilitiesLead the development of large-scale web crawlers, ingestion pipelines, and data processing systems.Construct, maintain, and optimize vital backend and frontend components for crawler services, including storage solutions, data retrieval functions, and UI dashboards for effective data management.Work closely with Search and Infrastructure teams to ensure efficient and high-quality ingestion and processing of billions of web pages.Architect and implement full-stack features and scalable distributed systems capable of handling high loads and real-time data operations.Experiment with innovative approaches to rapidly enhance system performance, usability, and reliability.QualificationsAt least 5 years of software development experience with a solid understanding of data structures and algorithms in languages such as Python, C++, Rust, or Go.Experience in developing large-scale web crawlers is highly preferred.Demonstrated expertise in building, deploying, and optimizing high-load, distributed services.Strong knowledge of cloud infrastructure, particularly hands-on experience with Kubernetes (K8s) and AWS.A passion for writing clean, efficient, and scalable code.

Role overview Ergomed seeks a Senior Quality Assurance Manager to lead its Quality Assurance department in Belgrade. This leadership role ensures compliance with industry standards and regulatory requirements, supporting the company's focus on high standards in both pharmacovigilance and quality assurance. Main responsibilities Develop, implement, and monitor quality assurance processes and systems. Collaborate with teams throughout the company to drive continuous improvement. Ensure all activities align with current industry standards and regulatory requirements. Impact of the role The Senior Quality Assurance Manager shapes the quality culture at Ergomed. This position plays a central role in maintaining excellence as the company grows, ensuring high standards and supporting effective pharmacovigilance operations. Location This position is based in Belgrade.

Role Overview Telesign is seeking a Collection Analyst in Belgrade to support financial operations by managing accounts receivable and ensuring timely payments. This role helps maintain strong customer relationships while supporting the company's financial stability. What You Will Do Oversee accounts receivable and monitor outstanding balances Contact customers to secure timely collections Assess customer accounts and identify areas for process improvement Develop and recommend strategies to optimize collection efforts Work closely with teams across the company to resolve issues and support financial goals What Helps You Succeed Strong analytical skills for reviewing account data and trends Effective communication for maintaining customer relationships Ability to collaborate with cross-functional teams

About Gen Digital Gen Digital brings together well-known consumer brands such as Norton, Avast, LifeLock, and MoneyLion, serving nearly 500 million users in over 150 countries. The company focuses on cybersecurity, online privacy, identity protection, and financial wellness, with a mission to help people secure and manage their digital and financial lives. Teams at Gen Digital value resourcefulness, customer focus, and open debate. The workplace encourages experimentation and learning, and welcomes people with diverse backgrounds and perspectives. Employees benefit from flexible work arrangements, generous time off, competitive pay, comprehensive benefits, and wellness programs. Role Overview: Revenue Analyst Location: Belgrade, Serbia The Revenue Analyst will join the CSIS team to help drive revenue growth by turning data into insights that influence strategy and profitability. This position works closely with RevGen leadership, Revenue Leads, Technical Account Managers (TAMs), and the CSIS Drive team to ensure data insights are accurate and relevant. The role also contributes to the development of AI-powered data models and engines designed to optimize revenue and improve customer experience. Main Responsibilities Analyze CSIS data to spot trends and opportunities in retention, sales, and upsell/cross-sell across customer service channels. Investigate large, complex datasets to identify areas for growth. Support Revenue Leads and TAMs by delivering accurate revenue projections and models for strategic projects. Consolidate and monitor revenue projections from multiple business lines to create a comprehensive overview across the ecosystem.

Join wargamingen as a Marketing Analyst and play a crucial role in shaping our marketing strategies and driving growth. As a member of our dynamic team, you will analyze market trends and customer data to provide actionable insights that enhance our marketing efforts.

COLIBRIX.ONE develops AI-driven payment technology for Payment Service Providers, Electronic Money Institutions, and neobanks across the EU and UK. As a licensed Electronic Money Institution (FCA reference number 927920) and a Principal Member of Mastercard, the company offers services such as global card processing, digital wallet infrastructure, cross-border merchant accounts, alternative payment methods, and corporate accounts for legal entities. The team values innovation, security, and scalability, and encourages curiosity and collaboration. COLIBRIX.ONE continues to grow and seeks professionals interested in shaping the future of fintech. Role overview The Financial Analyst will support daily financial operations, reporting, and reconciliation. This position focuses on maintaining accurate financial data, handling merchant settlements, and delivering analysis to guide business decisions. What you will do Reconcile daily transactions using Excel-based accounting systems and automated platforms to ensure data accuracy. Perform periodic reconciliations (weekly, monthly, annual), identify discrepancies, and maintain reporting standards. Create and manage financial accounting workbooks and ledgers tailored to merchant and partner needs. Oversee merchant tariff onboarding and updates to keep internal fee structures accurate. Calculate and process merchant settlements, including preparing and distributing detailed reports. Maintain daily dashboards tracking financial performance by merchant and partner. Handle transfers and deposit calculations, ensuring timely and accurate processing. Prepare and send regular financial reports to merchants on a weekly and monthly schedule. Provide ad hoc financial analysis and support to Account Management and Sales teams. Update foreign exchange rates in all systems to support multi-currency operations. Support internal systems by reconciling transactions with online databases and ensuring correct mapping.

Join our dynamic team as a Senior Automation QA Engineer at Wargaming, where you will play a crucial role in ensuring the quality of our highly popular game, World of Warships. You will be responsible for designing and implementing automated tests, working closely with developers to enhance our testing frameworks, and collaborating with cross-functional teams to deliver a seamless gaming experience.

Role overview Domino's Pizza, Inc. seeks a General Manager to lead its Belgrade restaurant. This position guides the team in providing consistent service and quality food each day. Main responsibilities Direct daily restaurant operations, ensuring smooth workflow Support and manage staff to meet performance goals Uphold high standards for customer satisfaction and food quality What we look for Background in the food industry Interest in creating a positive work environment Dedication to service and effective team leadership

Job OverviewJoin Wargaming's dynamic Analytics team as a dedicated Data Engineer. This role demands a proactive mindset, a passion for data, and a results-driven approach. As a Data Engineer, you will harness your technical expertise in high-load telemetry and data warehousing while collaborating effectively across teams.Your work will involve analyzing diverse product data, from financial metrics to detailed in-battle telemetry, capturing player actions, vehicle movements, and interface events. All insights are consolidated into a centralized data warehouse for near real-time analytics.Collaboration is key, as you'll work closely with the Data Warehouse team and a global community of over 50 analysts. This position offers the chance to thrive in a data-centric industry and leverage modern analytics technologies for tangible product outcomes.

ennovationHUB is a rapidly expanding international e-commerce group specializing in the home & living sector, particularly furniture. Operating from our hubs in Belgrade, London, and Barcelona, we cater to diverse markets through localized e-commerce platforms across the UK, North America, Europe, and APAC.We are currently on the lookout for a talented and dedicated Graphic Designer in Marketing to join our Belgrade team. In this role, you will collaborate with the Marketing team to develop compelling visuals that resonate across various markets.Key Responsibilities:Create engaging visuals for advertisements across different brands within our group, including platforms like Meta, Google, TikTok, LinkedIn, and Pinterest;Prepare high-quality images for website use, marketing materials, and product visualization;Ensure all final outputs meet website readiness and adhere to brand guidelines;Utilize advanced AI tools to enhance output efficiency and volume;Gain a thorough understanding of our products, competitors, and industry trends;Follow creative briefs to effectively convey the desired tone, aesthetics, and messaging in your visuals;Collaborate closely with fellow designers and the marketing team;Embrace feedback as a means of improvement;Show enthusiasm for professional growth opportunities.

Role overview Domino's Pizza in Belgrade is hiring a full-time Pizza Maker. This role centers on preparing pizzas with care and consistency, helping deliver the quality and taste customers expect from Domino's. What you will do Prepare pizzas following Domino's recipes and standards Work with kitchen equipment and ingredients safely and efficiently Support team members to keep operations running smoothly Maintain a clean and organized work area What to expect Full-time schedule Hands-on work in a busy kitchen setting Opportunities to build culinary and teamwork skills