Remote (UK) Senior Software Engineer responsible for operating 100+ multi-cloud streaming clusters and related database infrastructure (Mimir, Loki, Tempo, WarpStream). Duties include diagnosing cross-layer failures, designing safe rollouts, improving observability and automation, partnering with database and platform teams, participating in on-call rotations and incident response. Requires 6+ years of engineering experience, strong Kubernetes experience (AWS/GCP/Azure), familiarity with infrastructure-as-code (Helm/Terraform/Jsonnet), distributed systems knowledge, and proficiency in at least one language (Go preferred). Base compensation range (UK) GBP 91,755 - GBP 110,106.

Lead reliability engineering initiatives for critical user-facing systems (APIs, feeds, media, real-time) at internet scale. Partner with product and infrastructure teams to improve availability, latency, scalability, automation, and incident response; mentor engineers and define reliability best practices. Requires 8+ years SRE or related experience and strong skills in distributed systems, observability, programming (Go/Python), and cloud-native technologies.

Join Replit's SRE team to design observability and monitoring solutions, drive infrastructure automation and IaC (Terraform/Ansible/Pulumi), define SLOs/SLIs, lead incident response and post-mortems, and optimize performance and capacity. Role expects 4-8 years SRE/DevOps/Infrastructure experience and strong skills with Kubernetes, cloud-native technologies, monitoring platforms, and automation using Python or Go.

Join Replit's SRE team to design and implement observability, define SLOs/SLIs, lead incident response, automate operations and performance-tune large-scale Kubernetes deployments on cloud platforms. The role requires 8+ years in SRE or similar, deep distributed-systems experience, strong coding skills in Python or Go, and experience with IaC tools (Terraform/Pulumi) and monitoring platforms.

Join a senior team of DBAs, SREs, and platform engineers to scale PostgreSQL and vector search infrastructure, strengthen HA/DR and backup practices, build automation and GitOps workflows, improve observability and security, and collaborate with service and AI teams. Requires 5+ years operating PostgreSQL in high-volume production environments.

Join GitHub's distributed Traffic Team to design, implement, and operate scalable, reliable traffic and load-balancing systems (including the GitHub Load Balancer). Responsibilities include architecture and technical leadership, coding (primarily Go and Ruby), mentoring, participating in on-call rotation, and improving DDoS/abuse protection and routing/rate-limiting at global scale. Requires several years of production software experience and experience building/supporting high-traffic cloud-native systems.

The Wikimedia Foundation seeks a Senior SRE to perform operational and DevOps tasks (deployment, maintenance, configuration, troubleshooting), implement configuration management and deployment tooling (Puppet, Kubernetes), automate fleet operations, participate in 24/7 on-call rotations and incident response, and collaborate with global product teams. Requires 6+ years in SRE/Operations/DevOps, strong Linux and automation skills, experience with infrastructure/security incident response, and strong English communication.

Fully remote Principal Engineer role hiring in the United Kingdom, Portugal, and Spain. Define and drive architecture of scalable, event-driven systems on AWS, lead design of core platform services, solve cross-cutting distributed-systems problems, partner with Data Engineering, and mentor senior engineers. Preferred 8+ years experience; strong Node.js/TypeScript, serverless AWS (Lambda, EventBridge, S3, API Gateway), IaC (CDK/Terraform), observability, and data modelling. Base salaries cited for Spain (€100,000) and Portugal (€80,000).

Senior engineer responsible for owning GPU/accelerator clusters and related stack (drivers, runtimes, device plugins, node config, schedulers, serving frameworks) to enable in-house model training and inference. Requires 5+ years in infrastructure engineering with hands-on experience operating GPU or accelerator-backed production environments, strong systems fundamentals (Linux, networking, storage, containers, Kubernetes), Python proficiency, and experience with ML serving frameworks and observability.

Muck Rack seeks a Lead Software Engineer to design, build, and evolve distributed, event-driven ingestion pipelines that transform large volumes of unstructured content into structured, enriched data. The role requires partnering with Product, Search, Data Science, and Platform teams, mentoring engineers, and driving architectural decisions. Required: 8+ years' software engineering experience and proficiency with Python, streaming technologies (e.g., Kafka/Kinesis), microservices, gRPC/Protocol Buffers, and large-scale data systems.

Hands-on, customer-facing role responsible for designing, validating and deploying vKS solutions on VMware Cloud Foundation (VCF). Work includes leading technical discovery, workshops and proofs-of-concept, collaborating with field and sales teams, providing guidance on Kubernetes adoption, DevOps/CI-CD integration, and producing reference architectures. Requires 8+ years' technology experience and deep knowledge of VMware Cloud Foundation and Kubernetes; travel up to 50%.

Muck Rack seeks a Senior DevOps Engineer to design and standardize infrastructure, deployment workflows, and CI/CD pipelines; operate and improve Kubernetes-based container infrastructure on AWS; enhance observability and incident readiness; and participate in a shared on-call rotation. The role requires 5+ years in DevOps/platform engineering and hands-on production experience with Kubernetes, Terraform, AWS services (EKS, S3, IAM, RDS, VPC, Route53), CI/CD tooling, and container systems.

Join GitLab's Dedicated team to automate provisioning, upgrades, and operations for many isolated GitLab environments. Responsibilities include building infrastructure-as-code (Terraform, Ansible), operating Kubernetes workloads, developing deployment/orchestration tooling (Helm, omnibus-gitlab), improving observability, participating in incident response and on-call rotations, and documenting runbooks. US base salary range provided: $126,400–$213,600 USD/year (US residents).

Ashby is hiring a Staff Platform Engineer (also listed as Site Reliability Engineer) to own end-to-end infrastructure and developer experience work for a rapidly growing hiring-software product. Responsibilities include building infrastructure-as-code, improving deployment strategies (canaries, feature flags), defining SLOs/SLIs, implementing event-driven/data warehouse infrastructure, and improving monitoring and guardrails for customer data. Tech stack references: TypeScript, Node.js, React, Apollo GraphQL, Postgres, Redis, Datadog, Sentry, and AWS. Role is based in the United Kingdom (multiple cities listed).

Join the End-to-End Verification team to design tests, build realistic testbeds, and perform end-to-end troubleshooting across hardware, system software and AI workloads for large-scale AI clusters. Requires 8+ years of networking or system-level testing on Linux, strong debugging skills (perf, tcpdump, ethtool, iproute2), NIC/DPU experience, familiarity with NCCL, RoCE/RDMA, and scripting (Bash/Python/Ansible).

Twilio is hiring a remote Reliability Architect to drive technical strategy and outcomes for Reliability Engineering, design and operate scalable, fault-tolerant systems (Kubernetes, AWS, Terraform), establish reliability practices (SLOs, incident response, observability), and mentor engineering leaders. Role is remote (East Coast US or remote in Ireland, UK, or Spain) and requires 15+ years of relevant experience.

Work on AI Infrastructure to design and operate high-performance, reliable production systems that power AI agents. Responsibilities include building Rust services for model inference and orchestration, designing scalable systems for millions of users, implementing MLOps and model deployment patterns, and defining observability and failure handling. Requires 5+ years building high-scale production systems and strong Rust and distributed systems expertise.

Join CrowdStrike's Red Team R&D to maintain and develop infrastructure used for simulated adversary operations. Responsibilities include reactive and proactive infrastructure support for EMEA/META, Windows and Linux administration, cloud (AWS/Azure/GCP) management, IaC projects, security/compliance, scripting in Python and Bash, and documentation. Position is primarily remote with occasional in-person work at the Reading, UK office.

Lead and implement incident response playbooks, perform incident response and coordination, and develop security automation and hardening. Role requires experience with SOAR and bespoke scripting, SIEM (ideally Google Chronicle and YARA-L), cloud environments (preferred AWS/GCP), container technologies (Kubernetes, Docker), EDR tools, and detection engineering. Involves cross-functional project leadership and on-call rotation.

Work on the Issues Platform team to design, prototype, implement, ship and support backend services and APIs (Ruby on Rails and Go). Responsibilities include building scalable, reliable systems, participating in on-call rotations and incident response, instrumentation/monitoring, CI/CD, mentoring peers, and writing architecture proposals.