Work as a senior individual contributor on Elasticsearch core/infra: design and implement scalable features and APIs, solve performance and concurrency issues, improve observability and CI/CD, support operational investigations, and enable extensibility via plugins and the Painless scripting language. Role emphasizes Java, low-level JVM knowledge, automation, and cross-team leadership.

Work on Elastic's APM UI team to design and implement intuitive UI components in TypeScript/React, integrate front-end elements with back-end services (Node.js), and own end-to-end projects. Responsibilities include architecture and system design, promoting reusable components, automated testing and deployment, code reviews, usability testing, and async collaboration across a distributed team. Relevant experience includes observability/APM, Elastic stack, OpenTelemetry, Go, Kubernetes, and building large data-heavy UIs.

Parexel is hiring a SKDL Programming Lead (home-based in Spain) to manage biosample planning and execution, sample and kit logistics, and programming/support for laboratory operations. The role requires minimum 6 years clinical research experience and proficiency in programming (Python, R, MATLAB, SQL, Perl), database/dashboard development, LIMS and clinical trial data processes, with responsibilities spanning vendor management, data transfer specifications, and compliance with clinical/regulatory standards.

Embed with customer engineering teams to scope, prototype, implement, and roll out production solutions using Docker products and agentic AI (LLMs, agents, MCP). Own technical delivery, integrate with enterprise systems (identity, secrets, registries, Kubernetes, CI/CD), define standards, and feed learnings back to Product and Engineering. Senior role requiring 10+ years' experience and deep Docker, coding, and customer-facing delivery expertise.

Work directly with the CEO and CTO on a serverless, multi-tenant monorepo (Next.js, React, TypeScript, tRPC, Prisma, SST). Responsibilities include end-to-end ownership from UX through API and database, building AI-first workflows using LLMs (Claude, Cursor), writing well-tested code, and prioritizing performance, accessibility, and reliability. Requires 1+ years experience and strong skills in React, TypeScript, Next.js and backend tools such as tRPC, SQL/ORMs, and Node.js.

Work directly with the CEO/CTO to design, build, and ship end-to-end product surfaces on a multi-tenant serverless monorepo. The stack includes Next.js/React frontend, TypeScript, tRPC and Prisma on the backend, SST for deployment, and AWS services (SQS, EventBridge, Lambda). Responsibilities include owning features from concept to production, writing well-tested code, working AI-first with tools like Claude and Cursor, prototyping and validating with real users, and championing performance, accessibility, and reliability. Requires 1+ years of experience.

Join Mozilla as a Staff Software Engineer on Tools & Systems to build and operate internal engineering systems, developer tooling, CI/CD, workflow automation, and related cloud infrastructure. The role involves end-to-end ownership of software and operational problems, using telemetry and metrics, contributing to architecture and technical strategy, and working openly in the open-source ecosystem. Hiring range for Remote Spain: €76,000–€101,000 EUR per year.

Join New Relic's Personalization team to build and scale backend services and Kafka-based streaming pipelines that process user behavior data on AWS. Work primarily with Java (Java 25), Spring, GraphQL, NoSQL, Kubernetes and Kafka; design microservices and APIs, turn behavioral signals into segments/models, participate in on-call rotation, and use AI coding assistants in the engineering workflow. Visa sponsorship is not available for this role.

Upsun is hiring a remote Software Engineer to design, build, and maintain production systems for products that connect AI agents and developer workflows and run on Upsun Cloud. The role expects production experience with languages such as Python, Go, or TypeScript, familiarity with cloud and CI/CD practices, and working knowledge of APIs, data stores, testing, security, and observability. Hiring is focused on candidates legally authorized to work in Canada, France, Germany, Spain, or the United Kingdom (no visa sponsorship).

Role requires designing and implementing solutions for Elastic's hosted control plane, guiding cross-team technical designs, leading development best practices, and troubleshooting complex failures. Requires 5+ years of software engineering experience and familiarity with backend languages (Scala, Java, Go) and technologies relevant for SaaS (orchestration, networking, containers).

Lead and own competitive benchmarking initiatives across search, vector/hybrid retrieval, analytics, and observability workloads. Build and maintain automated benchmark harnesses, datasets, query sets, and load profiles; design fair comparisons; evaluate latency, throughput, resource consumption, and cost; and investigate differences using profiling and controlled experiments. Require strong software engineering (Python or similar), hands-on performance analysis in distributed systems or search infrastructure, workload and dataset design skills, reproducible testing practices, and clear technical writing. Familiarity with Elasticsearch, Lucene, Rally, ClickBench, cloud performance and cost analysis, and serverless/autoscaling systems is a plus.

NVIDIA is hiring a Senior Software & System Architect to lead architecture for cloud-networking and design system architectures for DPUs and NICs. The role includes research, prototyping POCs, writing architecture specifications, and collaborating with global SW/HW teams and customers on orchestration, provisioning, security and SDN solutions.

Hands-on senior software engineering role building automated security assurance, observability, and compliance tooling for a cloud-native SaaS organization. Requires production development experience (Go, TypeScript, Python commonly used), knowledge of container/Kubernetes and cloud environments, and experience automating security and compliance workflows and working with security frameworks and audits.

Join Grafana Labs' GRC engineering team to develop automated security assurance programs, security observability systems, and developer-friendly guardrails across the SDLC, applications, and infrastructure. Requires hands-on software development experience (primary languages used: Go, TypeScript, Python), familiarity with containerized cloud-native environments (Kubernetes), and experience automating compliance and security controls. Role is remote and the Sweden base compensation range is provided.

Work on building security observability, compliance, and control management systems and tooling; develop automated security assurance programs and integrate security controls across the SDLC. Role expects hands-on software development experience (primarily Go, TypeScript, Python), knowledge of containerized cloud-native environments (Kubernetes), and familiarity with security frameworks such as ISO 27001, SOC 2, PCI DSS, GDPR, and NIST.

Grafana Labs seeks a Senior Software Engineer, Security Assurance (remote, candidates in UK, Ireland, Spain, Germany or Sweden) to develop services and automations for security observability, compliance (ISO 27001, SOC 2, GDPR, etc.), and guardrails across SDLC, applications, and infrastructure. Role is hands-on development (languages used include Go, TypeScript, Python) and involves collaborating with security, engineering, and customer teams.

Hands-on senior software engineering role focused on developing services, automations, and tooling for security observability, compliance, and control management across cloud-native infrastructure and SDLC. Preferred experience with languages such as Go, TypeScript, or Python, containerized/Kubernetes environments, automation of security/compliance processes, and familiarity with standards like ISO 27001, SOC 2, PCI-DSS, GDPR, and NIST. Position targets candidates in Germany, UK, Ireland, Spain, or Sweden; Germany salary range provided.

Join a cross-functional team owning metrics collection and ingestion end-to-end (agent on hosts/Kubernetes to backend). Solve performance, scalability and correctness problems across the pipeline, lead technical design across agent and backend, collaborate with product and design, and participate in on-call rotation. Requires 5+ years professional experience in Rust, Go or C/C++, strong Linux systems programming background, and familiarity with eBPF, container runtimes, Kubernetes and cloud providers. Location is flexible (Serbia or Spain).

Own the end-to-end routing model: features, objective, training, calibration, evaluation, and rollout (shadow, A/B, full). Work with production fleet data, benchmark harnesses, and platform engineers to instrument per-request signals (including decode speed) and ensure production-parity with rigorous evals and error bars. Tech stack highlights: Python, PyTorch, SQL at scale (ClickHouse), OpenAI/Anthropic-compatible LLM APIs, and GitLab CI.

Join the Elasticsearch Security team as a Senior Java engineer contributing to architecture and implementation of core security features (authentication, authorization, tenant isolation), optimizing security performance in distributed systems, applying cryptographic solutions, and driving vulnerability management. The role emphasizes JVM/Java internals, concurrency, and integrating AI-driven tools to accelerate security workflows.