Remote role to design and implement greenfield proxy infrastructure: high-performance reverse proxies, IP rotation and session management, IP reputation tracking, geo-targeting and monitoring. Requires deep TCP/UDP and protocol knowledge (HTTP/HTTPS/SOCKS5, HTTP/2/3), Linux networking experience, prior experience building proxy or networking infrastructure, fluent English and a BSc or equivalent technical degree.

SearchApi seeks a remote Anti-Bot Engineer to research and implement anti-bot evasion, reverse engineer detection systems (Cloudflare, Akamai, DataDome, PerimeterX, etc.), optimize Playwright/Puppeteer/CDP configurations, debug TLS/protocol fingerprinting (JA3/JA4, HTTP/2, HTTP/3/QUIC), analyze network traffic, and run headless browsers reliably at scale. Fluent English and deep hands-on experience with browser internals, fingerprinting, network analysis tools, and relevant tooling (Playwright, Puppeteer, Selenium, Wireshark, Burp Suite, mitmproxy) are required.

Remote (UK/Europe) manager role owning customer onboarding and integrations for Sardine’s fraud and risk platform. Responsibilities include leading the integration team, owning APIs and integration documentation, designing technical solutions, managing implementation projects, troubleshooting production issues, and providing product feedback. Requires 7+ years in implementations/integration/TA/solutions roles and experience with B2B SaaS domains such as payments, fraud, risk, or compliance.

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.

Work on Docker Agent (cagent) to design and implement containerized runtimes for AI agents. Responsibilities include expanding cagent, agent runtime development, RAG integration, evaluation frameworks, rapid prototyping, and community engagement. Role is remote-first with a flexible hybrid schedule but candidates must be located in London or a reasonable commuting distance. Docker does not offer visa sponsorship for this role.

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.

Olo is hiring an Engineering Manager to lead and support a Delivery Team responsible for high-traffic external API integrations, real-time menu/location data, and delivery negotiation. Responsibilities include managing execution, prioritising and remediating technical debt, owning the team roadmap, driving hiring and mentorship, and resolving major technical issues. Role is fully remote within Northern Ireland. Required: Bachelor’s degree or equivalent, 12+ years engineering experience with 2+ years in management.

Lead NVIDIA developer strategy with product, engineering, research and marketing teams; prioritize services and applications for GPU acceleration; establish and run partnerships with CSP engineering and developer teams; integrate NVIDIA GPU acceleration into CSP applications; host and speak at industry events. Requires BS/MS/PhD or equivalent and 15+ years' experience in cloud, AI, scalable applications, data analytics and GPU technology.

Senior HPC DevOps and Network Engineer role at NVIDIA responsible for architecting, building, and operating large-scale HPC/AI clusters. Responsibilities include infrastructure-as-code, CI/CD, automation, monitoring/logging, networking (InfiniBand/RoCE/Ethernet), storage, virtualization, troubleshooting, and performance tuning. Requires B.Sc. (or related) and 5+ years' experience; experience with GPUs, Slurm, Kubernetes, and cloud platforms is listed.

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.

Netguru seeks a Research Project Coordinator (freelance, based in London) for an ASAP start on a 6-month engagement (extension possible). The role requires 2+ years’ experience in research coordination, participant recruitment or project management, strong organizational and communication skills, and familiarity with tools such as Qualtrics, Braze, Iterable or similar. Responsibilities include building outreach campaigns, refining recruitment plans, scheduling interviews, managing incentives, maintaining documentation, and reporting recruitment progress. CET working hours; full-time position; hourly rate up to €43/h on a B2B contract.

Join Flexera as a Senior Software Engineer to design and implement web applications using C#/.NET and JavaScript frameworks (React, Angular). Responsibilities include full product lifecycle work (requirements, architecture, coding, testing), performance and security improvements, prototyping and pair programming. Advanced English is mandatory.

Zapier is hiring a Manager/Sr. Manager, Sales-Assist to lead a team supporting customers primarily via live chat (also calls and email) to drive adoption, expansion, and faster sales cycles. The role requires building data-driven programs (segmentation, routing, scoring, prioritization), leveraging AI and automation, partnering with cross-functional teams, and using GTM tools like HubSpot and Gong. Locations listed include India, United Kingdom, and Spain; the posting requests 6+ years of SaaS growth/upsell experience and 2+ years of sales team leadership.

Responsible for designing, building, deploying, and operating backend services for Mapbox's Navigation and Traffic initiatives. Role emphasizes scalability, low-latency performance, testing and monitoring, reducing technical debt, and on-call support. Requires 5+ years experience and proficiency with Python, TypeScript (backend), and AWS (CDK/ECS/Step Functions/Lambda/S3).

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.

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.

Human Made seeks a freelance Senior Web Engineer to join its distributed team remotely. The role requires deep WordPress knowledge (internals and ecosystem), strong PHP and JavaScript skills, experience with REST APIs, Git, MySQL, debugging, performance and security, and the ability to architect complex subsystems and contribute to team activities.