Sardine is hiring a Senior Data Scientist to design, prototype, and productionize machine learning and graph analytics solutions for fraud and risk use cases. The role involves client-facing problem solving, metrics definition, dashboard automation, collaboration with engineering to scale models, and requires 7+ years of relevant data science or quantitative experience with strong Python/R and SQL skills.

Prezi is hiring a Senior Data Analyst to join the Data Science & Analytics team (remote across listed European countries). The role involves end-to-end analyses (requirements, data processing, presentation), building dashboards and data products, defining metrics, quantifying impact, fostering self-service analytics, and collaborating with data engineering. Required: 5+ years in data/business analytics, proficiency in SQL and Python (or other scripting), experience with statistical analyses (funnel analysis, clustering, forecasting, recommender systems), dashboard building, strong English communication, and interest/experience in AI tools. Bonus experience: AWS, ETL pipelines, SaaS analytics, personalization/recommendation work.

Parexel seeks a Senior Associate with a Master's/PhD and at least 3 years' experience in pharma, consultancy, HTA/access, or academia. The role involves designing evidence-generation plans, conducting statistical analyses (e.g., GLMs, survival analysis, NMA, Bayesian methods), developing technical documentation and economic models, and contributing to cross-functional Access/HTA strategies. Proficiency in R and GitLab is required; familiarity with SAS, Python, WinBUGS, or JAGS is a plus.

Parexel is recruiting a Central Laboratory Vendor/Project Manager to support global clinical studies from the UK, Poland or Serbia. The role covers oversight of sample collection/processing/storage/shipping, vendor and CRO coordination, ICF/protocol review for sample sections, tracking and reporting of samples and data, and support through study set-up to close-out. Requires clinical research experience (6–8 years) and central laboratory and oncology experience.

NVIDIA is hiring a Senior Deep Learning Software Engineer (Inference) to design, build, and optimize GPU-accelerated software and inference pipelines for LLMs and generative/multimodal models. The role involves contributing to and optimizing frameworks (vLLM, SGLang, FlashInfer), using tools like CUDA, CUTLASS, Triton, and NCCL, and collaborating across teams. Requirements include a Master's/PhD or equivalent experience and 5+ years of relevant software development experience with strong C/C++ skills; Python and production inference experience are a plus.

Role involves designing, implementing, and maintaining automated test scripts and frameworks (primarily Python), owning end-to-end feature test plans, validating software functionality and performance via system/integration testing in Linux-based and virtualized environments (Docker, KVM), managing test environments, analyzing defects, and collaborating with software, DevOps, architecture, and product teams. Requires 5+ years' experience and fluent English. Base salary ranges for Poland are stated (221,250–383,500 PLN for Level 3; 292,500–507,000 PLN for Level 4).

Role involves in-depth performance characterization and analysis on large multi-GPU/multi-node clusters, studying HW/SW interactions, implementing micro-benchmarks, triaging customer performance issues, and building tools to visualize performance data. Requires M.S. or equivalent (or PhD), 3+ years of parallel programming and communication runtime experience (e.g., MPI, NCCL, UCX, NVSHMEM), proficiency in C/C++ and a scripting language (preferably Python), and familiarity with containers, cloud provisioning and schedulers (Kubernetes, SLURM, Ansible, Docker).

Role to investigate and improve GPU-to-GPU and node-to-node communication performance, design and implement communication technologies, co-design HW/SW with GPU and networking architects, build proofs-of-concept, run experiments and simulations at large GPU scales. Requirements: M.S./Ph.D. (or equivalent), 3+ years relevant experience, excellent C/C++ programming and debugging, experience with parallel programming models (MPI, SHMEM) and at least one communication runtime (MPI, NCCL, NVSHMEM, OpenSHMEM, UCX, UCC), strong Linux skills, and solid understanding of system and network architecture. Desirable: CUDA/NVIDIA GPU experience, knowledge of InfiniBand/RoCE/NVLink, deep learning frameworks (PyTorch, TensorFlow) and HPC application experience.

Role to scope, design, and implement high-performance numerical dense linear algebra software on GPUs, provide technical leadership, and work with product teams and customers. Requires a PhD or Master’s (or equivalent experience), 5+ years developing production software with CUDA and C++, strong fundamentals in finite precision arithmetic and numerical linear algebra. Locations listed: Germany, Poland, France (also remote).

Senior role to develop scalable library software and optimize high-performance parallel numerical applications across CPU and GPU (CUDA). Requires 5+ years experience, strong C/C++ and software-development skills, performance tuning, benchmarking, and collaboration across distributed teams. Python and familiarity with CI/CD and profiling tools are desirable.

Remote Senior Technical Support Engineer role supporting enterprise customers of a cybersecurity SaaS. Responsibilities include troubleshooting complex frontend/backend issues, working with engineering/product/security teams, debugging and building small automation tools, and mentoring other support engineers. Requires 5+ years in software engineering or technical support, proficiency in Python, JavaScript, HTML, CSS, and experience with distributed systems and web security.

Remote Senior ML Ops Engineer role focused on maintaining and extending data/ML workflows and platforms that handle high-velocity, large-scale data. Requires minimum 3 years in a data role (data stores, feature engineering, pipelines) and at least 2 years of professional software development experience; key technologies include Python, Kafka, SQL/NoSQL (ClickHouse), cloud (AWS/Azure), Kubernetes and CI/CD.

Design and implement ML models that scale to millions of requests per second, translate business requirements into technical specifications, evaluate and debug models, and provide technical mentorship. Role combines research, engineering, and deployment work in a fully remote, flexible-hours environment. Requires 5+ years professional applied ML experience and experience with real-time, incremental, and online learning.

Intuition Machines seeks a Senior Cyber Security Analyst to monitor and investigate automated and human threats across the hCaptcha platform. Responsibilities include advanced investigations, threat hunting, incident response, auditing security measures, contributing to AI/ML detection improvements, and collaborating with product and customer teams. Required skills include web/API security, WAFs, SQL, Kubernetes, scripting (Python/JavaScript), and deep understanding of web application threat landscape. Role is fully remote with flexible hours and requires pre-employment screening and identity verification in the candidate's country of residence.

Lead and architect large-scale, production ML projects from design through deployment and maintenance. Require 7+ years building and maintaining production ML systems with focus on scalability, performance, reliability, and leadership. Familiarity with Kubernetes, containerization, distributed systems, and experience mentoring other ML engineers. Positions listed for Poland, Romania, Austria, and Croatia; role is fully remote with flexible hours.

The role leads the ML Security team responsible for bot, agent, and human fraud/abuse detection, owning execution of roadmaps, architectural and technical decisions, code reviews, mentoring, and delivery from data exploration through production deployment and monitoring. Required: strong ML/data science or engineering background with production ML experience, engineering management or tech lead experience, expertise in high-availability and distributed systems, Python, ML pipelines, MLOps, and strong cross-functional communication. Position is fully remote with flexible hours; all candidates will undergo pre-employment screening and identity verification in their country of residence.

The Director of Engineering will recruit, lead, and manage technical teams to deliver online security and ML products at scale, owning architecture, quality, availability, observability, and automation. The role requires a minimum of 5 years leading teams of 20–60 engineers and strong hands-on experience with distributed systems, high-availability development, security, and languages including Python, NodeJS, and Go or Rust.

Senior PostgreSQL Database Engineer (remote/EMEA and listed cities). Provide expert support to customers on complex PostgreSQL issues, perform investigations and live troubleshooting, contribute documentation and community content, and work with Kubernetes, Linux, cloud services (AWS/Azure/GCP), and related Postgres tooling. Role requires deep PostgreSQL expertise and fluent English.

Lead the evolution of an internal Database-as-a-Service: design HA deployments (PostgreSQL, ClickHouse, MongoDB, Redis), scale analytics ClickHouse clusters, maintain Airflow/Redash infrastructure, implement Reliability-as-Code (SLO/SLI, self-healing), and modernize stack using Terraform, Ansible, Kubernetes and cloud providers. Remote role supporting global teams.

Intent (Warsaw, Poland) invites speculative applications and CV submissions for future openings across roles related to digital and physical products. Offers include flexible working hours, full remote option, benefits (private medical care, Multisport, paid holidays, sick leave), English lessons, and work in small teams; specific requirements depend on the desired position.