Precision for Medicine is hiring a Feasibility Manager (or Senior Feasibility Associate depending on experience) to deliver country, site, patient-pool, and recruitment recommendations for pre-award, post-award, rescue, and standalone feasibility engagements. The role requires interpreting clinical and epidemiological data, performing site and landscape analyses, presenting findings to stakeholders and clients, and contributing to feasibility methods and tools. Requires a bachelor's in life sciences (or related), professional English, and a minimum of two years' relevant experience.

Precision for Medicine is hiring a Senior Feasibility Associate/Feasibility Manager to deliver evidence-based feasibility assessments across pre-award, post-award, rescue, and standalone engagements. Requires a bachelor's in life sciences or related field, at least 2 years relevant experience (feasibility, clinical operations, epidemiology, or similar), and professional proficiency in English. Role can be fully remote in the UK, Spain, Hungary, Poland, Romania, Serbia, or Slovakia; candidates must be legally authorized to work in the country of employment without employer sponsorship.

Responsible for conducting and presenting feasibility assessments (country, site, patient-pool, recruitment) across pre-award, post-award, rescue and standalone engagements; reviewing protocols and study assumptions; coordinating site/investigator outreach; collaborating with Business Development, Clinical Operations and other stakeholders. Requires a life-sciences bachelor's degree, professional English, and at least 2 years' relevant experience; knowledge of ICH-GCP and proficiency with Excel/PowerPoint/Word and web-based data platforms preferred.

Join the globally distributed Elasticsearch Search team to design and implement vector search features, improve existing vector similarity functionality (HNSW, IVF, etc.), fix bugs, and contribute to Lucene. Role requires strong Java, algorithms, and distributed systems experience and collaboration on open source projects.

Join the Elasticsearch Search team to lead the design and implementation of vector search capabilities, improve relevance and performance, and contribute to Lucene improvements. The role requires expert-level Java, professional experience with vector similarity/vector databases (HNSW, IVF or similar), algorithm and data-structure work, and experience collaborating in distributed/open-source teams.

Join the globally distributed Elasticsearch Search Relevance team as a Senior Software Engineer focused on vector search and search relevance. Responsibilities include designing and implementing new search features, improving relevance (including Lucene contributions), working with vector similarity algorithms (HNSW, IVF), and writing idiomatic modern Java in a distributed, open-source-oriented environment.

Join the globally distributed Elasticsearch Search Relevance team to lead development of search features, improve Lucene, and work on vector search capabilities. Responsibilities include designing and implementing algorithms and data structures, fixing complex bugs, collaborating across a distributed team, and writing idiomatic modern Java. Required experience includes search or vector databases and familiarity with algorithms such as HNSW or IVF; experience with data storage technologies (Elasticsearch, Solr, PostgreSQL, MongoDB, Cassandra) and using AI tools to aid development is highlighted.

The Account Associate supports partner success and retention across the region by resolving operational issues via email and support channels, maintaining partner information and schedules, assisting onboarding, preparing reports with Account Managers, monitoring partner performance, and delivering timely, professional partner support. Role requires 0–1 years' experience, strong communication and organisational skills, and fluency in English and German.

Contract (part-time, up to 25 hours/week) Global Study Coordinator role supporting Global Study Managers in planning and operations of clinical trials. Main responsibilities include managing patient travel and logistics, acting as primary patient contact, coordinating with vendors and clinical staff, maintaining databases and producing reports. Fluent Hungarian, English and French are required; work is performed from a home office.

Seeking a qualified Medical Director or Senior Medical Director (certified Neurologist or Psychiatrist) with minimum 5+ years clinical experience and experience as a medical monitor (ideally from a CRO). Responsibilities include medical monitoring, safety/SAE review, study planning and protocol development, client engagement, and mentoring/managing medical staff. Role is remote for specified EMEA countries.

Report to the Senior Director of Product Management and own strategy and roadmap for a product area of Payscale's compensation benchmarking platform. Lead AI-directed prototyping and cross-functional delivery with engineering, data science, and design; prioritize work, align stakeholders, and shape go-to-market packaging. Requires 5+ years as a technical Product Manager or Product Owner, hands-on experience with AI-assisted tools, strong technical fluency in data/analytics, and proven product delivery.

Parexel seeks a Manager, Site Payment Services to lead and mentor a global team managing end-to-end site payments, fund setup, and investigator invoice payments. The role emphasizes operational excellence, process improvement, compliance, reporting, and stakeholder collaboration. Requires a minimum of 7 years' relevant experience and advanced English.

Lead architectural and code-level performance engineering initiatives for Elasticsearch, including profiling, benchmarking, regression detection, and automation. Requires deep Java/JVM knowledge, experience optimizing distributed systems (tools such as flamegraphs, JMH, Rally), and familiarity with vector search, serverless/stateful architectures, and integrating native libraries (C++/Rust/SIMD). Role includes mentorship and cross-team collaboration.

Stripe is hiring an Enterprise Account Executive for Central Eastern Europe (remote in Poland or Romania). The role owns the full sales cycle—prospecting, deal structuring, negotiating, and expanding accounts—working with large and high-growth technology customers. Minimum requirements include 7+ years of sales experience (preferably technical/enterprise), strong presentation and negotiation skills, ability to map accounts and work with stakeholders, and fluency in English and either Polish or Romanian.

Precision For Medicine seeks a Start Up Specialist (open to levels with site start-up experience from a CRO) to prepare clinical trial application dossiers, manage CA/EC submissions and interactions, maintain project trackers and TMF, support site activation (including IMP release and ICF customization), coordinate translations, and liaise with feasibility, clinical operations and contracts teams. Candidates must be fluent in Hungarian and English and legally authorized to work in the country of employment without employer sponsorship. Candidates located in Hungary, Poland, Serbia, Slovakia or Romania are eligible.

Join the Emerging Threats and Security Validation team to research and analyse malware across the attack lifecycle, reverse engineer malicious files and exploits, validate and improve detection coverage, and partner with engineering, threat research, red team and ML teams to translate findings into product improvements. Requires a Bachelor's/Master's in Computer Science or related field and 4+ years of threat research/malware analysis experience.

Lead frontend architecture and technical direction for self-serve onboarding and platform experience, spending roughly 80% frontend and 20% on the Python backend. Partner with design, mentor engineers, set frontend conventions (architecture, testing, code quality), and contribute to backend work as needed. Remote-first role on a newly formed Growth team.

CrowdStrike is hiring a Senior Security Researcher for the Advanced Research Team to perform vulnerability research, operate and develop honeypots, run large-scale data collection and analysis, reverse engineer malware and binaries, collaborate across intelligence teams, and publish research. Requires 4+ years in information security, strong OS internals and network protocol knowledge, Python development skills, and experience with GenAI/LLM workflows.

Own batch and streaming pipelines and CDC feeds from operational databases into Snowflake. Design internal data tools and APIs, model and transform data using dbt, decide data storage and movement across CockroachDB, DynamoDB, Elasticsearch and Snowflake, and deliver multi-component data projects with production standards (tests, CI/CD, containers, observability via OpenTelemetry and Datadog).

Join Payward Services to design and implement robust, high-performance Rust services and libraries that power trading, payments, and crypto workflows. Responsibilities include building low-latency distributed systems, collaborating on architecture, applying RPC/Kafka/event-driven patterns, ensuring security-first system design, and taking end-to-end ownership of production systems. Requires 3+ years of software engineering experience and proficiency writing network or asynchronous code in Rust.