Senior Systems Administrator

Key Responsibilities Take on a critical Production Support role with 24/7 responsibilities, collaborating with the Global Operations team to ensure 99.99% uptime. Coordinate and prioritize support tasks with fellow DBA team members. Administer databases on Linux-based systems, including Telesign's production databases using Microsoft SQL, PostgreSQL, and MySQL. Engage in activities such as database installation, deployment, maintenance, performance tuning, optimization (SQL queries, stored procedures, and DB engines), troubleshooting, backups/restores, and implementing proactive monitoring to alert Technology Operations to any issues. Assist developers by providing guidance on database query patterns, table design, and performance enhancements, particularly for high transaction volume OLTP/API products, Business Intelligence, Data Warehousing, Data Science, and Knowledge Engineering. Collaborate closely with key personnel to design and build a data warehouse from existing data sources to enhance business operations through decision support, trending, and reporting on vital corporate performance indicators. Serve as the database expert, working with other senior technical staff to deliver highly available and reliable database platforms that support business needs. Provide consultative support to colleagues who may have less expertise in database technologies and their functionalities.

Join Our Team at Unlimit Unlimit stands at the forefront of the fintech revolution, powering the world's largest proprietary payments infrastructure.Founded in 2009, we operate from 17 global offices and boast a team of over 700 experts, adept at integrating more than 1,000 payment methods into a cohesive platform. From London to São Paulo, we enable businesses to expand internationally with a comprehensive suite of financial tools, including payment processing, alternative payment methods, multicurrency business accounts, card issuance, banking-as-a-service, and crypto services.Our mission is to dismantle financial barriers, facilitating seamless money movement worldwide. We equip innovative businesses with the tools they need to effortlessly manage and execute payments, no matter where they operate.The RoleWe are seeking a skilled Senior Database Administrator to enhance and maintain our production database environment across PostgreSQL, Oracle, and AWS-managed database services.This hands-on technical position emphasizes the reliability, performance, availability, security, and automation of our critical databases. You will collaborate closely with engineering, SRE, and security teams to ensure our database systems are consistently stable, scalable, and secure by design.Key Responsibilities- Administer and support production environments spanning PostgreSQL, Oracle, Aurora/RDS, MongoDB, and DocumentDB.- Guarantee high availability and preparedness for disaster recovery (replication, backups, PITR, and failover testing).- Execute performance tuning, query optimization, and capacity planning.- Develop and uphold backup/restore protocols and upgrade strategies.- Monitor database health, defining actionable alerts and dashboards.- Streamline operational processes through automation and Infrastructure as Code methodologies.- Advocate for secure access models and enforce governance standards.- Engage in incident response and root cause analysis pertinent to database systems.- Contribute to the creation of database standards, documentation, and operational runbooks.- Assist developers with schema design, indexing strategies, and performance troubleshooting.Required Qualifications- A minimum of 5 years of practical experience in database administration or database engineering.- Extensive expertise in PostgreSQL including:replication (physical/logical),partitioning,performance tuning,PgBouncer / RDS Proxy,vacuum strategy,pgvector.- Solid experience with Oracle including:backup/restore,performance tuning,and other related tasks.

P-1415 At Databricks, our mission is to transform the data lifecycle by simplifying processes from data ingestion to ETL, BI, and extending to ML/AI through a unified platform. We envision a future where traditional data warehouse architectures are superseded by an innovative pattern known as the Lakehouse (CIDR 2021 paper), which merges data warehousing with advanced analytics. This paradigm shift addresses critical challenges like data staleness, reliability, total cost of ownership, data lock-in, and the limitation of use-case support. To realize this vision, we are developing a cutting-edge query engine and structured storage system designed to exceed the performance of specialized data warehouses in relational queries. We aim to preserve the expressiveness and robustness of general-purpose systems like Apache Spark™ to accommodate various workloads, including ETL and data science. Join us on this multi-year journey. As a member of our team, you will be involved in designing next-generation systems set to redefine industry standards in several key areas: Query compilation and optimization Distributed query execution and scheduling Vectorized execution engine Data security Resource management Transaction coordination Efficient storage structures (encodings, indexes) Automatic physical data optimization Your Responsibilities: Clarify requirements and drive design decisions for ambiguous problems Create technical design documents and project plans Develop new features Mentor junior engineers Test, deploy to production, and monitor outcomes.

P-1414 At Databricks, our mission is to revolutionize the entire data lifecycle—from ingestion to ETL, BI, and extending into ML/AI—through a unified platform. We envision a future where the traditional data warehouse architecture is transformed into a modern architectural paradigm known as Lakehouse (CIDR 2021 paper). This open platform harmonizes data warehousing with advanced analytics, addressing key challenges such as data staleness, reliability, total cost of ownership, data lock-in, and limited use-case support. To realize this vision, Databricks is developing a cutting-edge (decoupled) query engine and structured storage system that aims to surpass specialized data warehouses in relational query performance while preserving the flexibility and robustness characteristic of general-purpose systems like Apache Spark™. Your contributions will be vital to this multi-year initiative. As a member of our team, you will design next-generation systems that set new benchmarks in the following areas: Query compilation and optimization Distributed query execution and scheduling Vectorized execution engine Data security Resource management Transaction coordination Efficient storage structures (encodings, indexes) Automatic physical data optimization

Join Databricks as we embark on a transformative journey to revolutionize the data lifecycle, from ingestion through ETL, BI, and into the realms of ML/AI, all within a unified platform. Our vision is to transition from traditional data warehouse architectures to the innovative Lakehouse paradigm, as detailed in the CIDR 2021 paper. This new architecture addresses critical challenges such as data staleness, reliability, total cost of ownership, data lock-in, and limited use-case support.At Databricks, we are developing the next generation of decoupled query engines and structured storage systems designed to surpass specialized data warehouses in relational query performance. Our goal is to maintain the expressiveness and robustness of general-purpose systems, like Apache Spark™, to accommodate diverse workloads, ranging from ETL to advanced data science applications. You will play an essential role in this multi-year endeavor.As a valued member of our team, you will be tasked with designing cutting-edge systems that leapfrog current state-of-the-art technologies in the following areas:Query compilation and optimizationDistributed query execution and schedulingVectorized execution engineData securityResource managementTransaction coordinationEfficient storage structures (encodings, indexes)Automatic physical data optimization

About Unlimit Unlimit is a leading global fintech powerhouse, renowned for operating the largest proprietary payments infrastructure in the world.Established in 2009, Unlimit has expanded its reach across 17 international offices and employs over 700 experts. We integrate more than 1,000 payment methods into a unified platform, empowering businesses to scale across borders. Our comprehensive suite of financial tools encompasses payment processing, alternative payment solutions, multicurrency business accounts, card issuing, banking-as-a-service, and crypto on- and off-ramps.Our mission is to dismantle financial barriers, enabling seamless money movement globally. We equip innovative businesses with the resources to accept, send, and manage payments effortlessly, regardless of their location.About the RoleWe are in search of a proactive and experienced Senior System Administrator to oversee and support our on-premise IT infrastructure. This role is crucial in ensuring the high availability, security, and operational stability of our local systems. The ideal candidate will be structured, security-conscious, and adept at navigating a regulated fintech environment.

Join our team at psicro as an Office Administrator, where you'll play a key role in streamlining our operations and enhancing our workplace efficiency. This position requires a proactive individual who is organized, detail-oriented, and has strong communication skills. As an Office Administrator, you will manage office tasks, coordinate schedules, and support various departments to ensure smooth daily operations.

Join our dynamic team at psicro as a Junior IT Systems Administrator. In this role, you will support our IT infrastructure, assist in troubleshooting, and maintain system performance. This is a fantastic opportunity for recent graduates or those starting their careers in IT.

Role Overview SMG Swiss Marketplace Group is hiring a Compensation Specialist to focus on Equity Plan Administration in Belgrade. This position manages the day-to-day operations of our equity compensation programs, supports compliance efforts, and serves as a key resource for HR and finance colleagues. What You Will Do Administer equity compensation plans, including grants, vesting, and reporting Ensure all processes comply with relevant regulations and internal policies Offer guidance and support to HR and finance teams on equity-related matters Who We’re Looking For Strong attention to detail and accuracy in handling sensitive data Interest in equity compensation and its impact on organizational success Professional approach and a collaborative mindset

Are you passionate about SQL and the expansive realm of databases? Do you understand the transformative power of data and enjoy leading teams to deliver top-notch products? If you're an experienced Project Manager eager to join a dynamic company where your contributions can directly influence our growth and engage with a global user community, we want to hear from you! Familiarity with database management tools, especially DBeaver, is a notable advantage. At DBeaver, we are committed to embedding data into the daily routines and decision-making processes of individuals around the globe. With a vibrant community of over 10 million active users inspiring us continuously, our open-source methodology drives innovation. As the leading provider of cross-platform enterprise data and database software, we are on the lookout for a talented Project Manager to join our R&D team. This role presents an exciting opportunity to lead initiatives that develop innovative data solutions for millions of users worldwide.

At DBeaver, we are driven by a unified vision to seamlessly incorporate data into the daily lives and decision-making processes of individuals. Our vibrant community of over 10 million active users globally serves as a constant source of inspiration, fostering innovation through our open-source philosophy. As the foremost provider of cross-platform enterprise data and database solutions, DBeaver is on the lookout for a dynamic Director of Sales to join our team. This pivotal sales leadership role, reporting directly to the CEO, involves managing and scaling our dedicated sales team while spearheading our sales strategy to attract new business, retain existing customers, and expand current accounts. Location: This position can be performed remotely from anywhere in Europe or in a hybrid capacity from our offices in Belgrade, Serbia, or Budapest, Hungary.

Are you enthusiastic about databases and have a talent for troubleshooting? Do you thrive on empowering others to harness the full potential of their data? At DBeaver, we strive to weave data into the daily routines and decision-making processes of individuals everywhere. Our vibrant community of over 10 million active users globally continually motivates our work, driving our open-source innovation. As the premier provider of cross-platform enterprise data and database solutions, DBeaver is looking for a dedicated Sales Engineer to join our European team. In this role, you will serve as a pivotal link between our sales team and clients, utilizing your technical knowledge to help potential customers recognize how DBeaver’s offerings can alleviate their technical challenges and align with their objectives. Location: This position is available for remote work across Europe or as a hybrid role in our offices located in Belgrade, Serbia, or Budapest, Hungary.

Role overview Tide is looking for a Senior Flutter Engineer based in Serbia to help create mobile applications that make financial management simpler for users. The position centers on designing, developing, and maintaining apps with Flutter, with an emphasis on usability and reliability. What you will do Collaborate with cross-functional teams during all stages of app development Design and implement new features using Flutter Maintain and enhance existing mobile applications Prioritize delivering effective user experiences Location This role is located in Serbia.

At CompStak, we are redefining the commercial real estate landscape by providing our members with precise and transparent data, leading to expedited and improved deal-making processes. Our mission is to gather and deliver critical information that is often difficult to obtain, ensuring seamless access for all our platform users.Position: Senior AccountantLocation: Belgrade, Hybrid (Currently, three days in the office, subject to change)We are seeking a Senior Accountant to join our dynamic Operations team in Serbia and collaborate closely with our Finance department based in New York. In this role, you will undertake a variety of accounting tasks that adhere to established principles and standards, ultimately safeguarding the organization’s financial resources and ensuring compliance with all relevant regulations and reporting requirements.

Constructorknowledg is hiring a Senior HR Operations Specialist in Belgrade. This role centers on leading and improving HR operations, with a focus on supporting both employees and business objectives. Role overview The Senior HR Operations Specialist manages day-to-day HR systems and processes. The position works closely with different teams to ensure HR strategies support company goals. Attention to detail and a strong sense of ownership are essential, as this role shapes the employee experience across the organization. What you will do Oversee and maintain HR systems Identify and implement improvements to HR processes Collaborate with other departments to align HR initiatives with business needs Impact This position offers the chance to influence HR practices in a growing company. The work directly affects employee satisfaction and helps drive organizational success.

Overview Join our dynamic team at Telesign as a Senior OpenShift Engineer! We are seeking a passionate professional to lead our migration to the OpenShift platform and drive infrastructure excellence. Key Responsibilities Collaborate with business stakeholders to gather requirements and design innovative solutions that meet engineering standards and business objectives. Architect, implement, and manage Red Hat OpenShift clusters in both physical and virtualised on-premises environments. Take charge of systems engineering projects tied to OpenShift infrastructure. Partner with development teams to containerize applications, enhancing deployment and release processes. Create and maintain robust CI/CD pipelines utilizing OpenShift and related DevOps tools. Automate deployment and operational tasks with Ansible and other scripting tools. Execute patching and upgrades for OpenShift clusters, ArgoCD, GitLab CI, and associated components, adhering to change-management protocols. Design and maintain strategies for backup, disaster recovery, and redundancy. Participate in on-call/standby rotation to support critical platform and infrastructure services, ensuring service continuity. Oversee daily operations, including trend analysis, root cause analysis, monitoring, and troubleshooting to maintain high availability and reliability. Implement security best practices, including RBAC, vulnerability management, and compliance controls. Enhance alerting, monitoring, and observability across OpenShift and related systems. During downtime of OpenShift-related tasks, perform general system administration, including Linux server administration and infrastructure maintenance. Develop and maintain comprehensive documentation, including architecture diagrams, operational procedures, and runbooks. Facilitate knowledge transfer, mentoring, and training sessions for colleagues on OpenShift, GitLab, and associated infrastructure technologies.

Tenstorrent is seeking a Senior Staff Engineer focused on driver development in Belgrade, Serbia. This position centers on creating and improving driver solutions to boost system performance and functionality. Role overview Work closely with teams across hardware and software to design, implement, and refine driver architectures. The goal is to deliver reliable and efficient drivers that support advanced system requirements. Key responsibilities Design and implement driver solutions tailored to system needs Collaborate with cross-functional groups to innovate and optimize driver architectures Focus on reliability and efficiency throughout the development process Location This role is based in Belgrade, Serbia.

Remote (or Belgrade) – Full-TimeAt Clay Global, we are a premier design agency dedicated to crafting exceptional digital products and building iconic brands. Our esteemed clientele includes industry giants such as Slack, Google, Snapchat, Amazon, and Coinbase, alongside a variety of innovative startups. With a diverse team spread across the globe, primarily in Europe and the USA, we are committed to excellence in design.We are seeking a Senior Brand Designer to join our dynamic team either remotely or at our office in Serbia. In this role, you will collaborate closely with brand strategists and researchers to elevate key brand concepts into unified, scalable visual identities that foster business growth. As a Senior Brand Designer, you will work alongside talented team members to express brand values through various forms of digital media, including illustration and animation.

Join Gambling.com Group (Nasdaq: GAMB), a leader in the online gambling industry, renowned for our award-winning marketing and sports data services. Our extensive portfolio includes prominent websites, such as Gambling.com and Bookies.com, along with iGaming-focused platforms like Casinos.com, BonusFinder.com, and Freebets.com.As our data ecosystem undergoes rapid transformation, we are on the lookout for a skilled Senior Data Architect to guide the evolution of our data infrastructure. This is your opportunity to develop scalable and efficient systems that offer profound insights into player interactions, financial reporting, and cross-sectional business analytics.Role Overview:In your role as a Senior Data Architect, you will lead the redesign and reconstruction of our data architecture, catering to the specific requirements of our business teams. You will transition from traditional manual file processes to a sophisticated, automated ETL pipeline, leveraging a Medallion architecture (comprising Bronze, Silver, and Gold layers) integrated with a Hub-Spoke model for centralized data management and distributed accessibility. Your expertise in technologies such as Snowflake and Airflow will ensure seamless data ingestion from varied sources, encompassing finance, operations, and other business verticals. Our aim is to forge a unified perspective of player and operator interactions across multiple sites, empowering advanced analytics, reporting, and strategic decision-making.Key Responsibilities:Lead the comprehensive redesign of existing data architecture, migrating from manual file handling to a robust, scalable system utilizing Medallion architecture principles for data layering and quality assurance.Design and implement a Hub-Spoke model to centralize core data assets (e.g., player and operator profiles) while facilitating spoke systems for vertical-specific analytics, ensuring data consistency and accessibility.Revamp ETL processes using Airflow for orchestration, automating data pipelines to handle ingestion from various sources, including real-time player activity, operator metrics, and cross-site journeys.Construct pipelines for data ingestion from all business verticals (e.g., finance, marketing, operations), delivering comprehensive reporting for finance teams and expanding support for holistic player/operator views.Focus on architecting iGaming-specific solutions centered on player and operator data, monitoring journeys across sites, ensuring compliance with industry regulations, and enabling personalized recommendations.Optimize the use of Snowflake for data warehousing, applying best practices to enhance performance and scalability.