Work on GitLab Verify to improve performance, reliability, and usability for high-volume CI jobs; design and implement AI-powered agents and LLM-backed tooling integrated with the Duo Agent Platform; build instrumentation and observability; optimize database and job orchestration; and write secure, well-tested Ruby on Rails code while leading cross-functional technical work.

Olo is hiring a Fullstack Software Engineer for the Catering team to design, build, and monitor solutions for online and high-value catering orders. Role is fully remote within Northern Ireland and requires 3+ years of software engineering experience, commercial experience with C#, .NET and TypeScript (React or similar), familiarity with AWS, containerization (Docker, EKS), unit testing, and participation in on-call duties. The role involves architecture and design, incident response, delivery pipeline ownership, and collaboration with product and design stakeholders.

NVIDIA is hiring a Senior CPU Performance Developer Technology Engineer to research and optimize Cloud and HPC CPU workloads on NVIDIA CPUs. The role involves deep performance analysis, benchmarking, contributing reference code or library work, and influencing architecture and software stack design. Requires a BS/MS/PhD or equivalent and 8+ years' relevant experience with strong C/C++ and/or Fortran skills. Locations listed include the UK, Switzerland, Poland, and Germany; Poland-specific salary ranges are provided.

Join Olo's In-Store squad to design and deliver integrations with POS partners, lead architecture for distributed systems (microservices, event-driven/Kafka), improve resilience and performance, and drive cross-team initiatives. Requires 4+ years' software engineering experience and strong expertise in .NET/C#, cloud infrastructure (AWS, Kubernetes/EKS), CI/CD (GitHub Actions, Octopus), and Terraform. Role includes on-call duties and technical leadership/mentorship responsibilities.

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.

NVIDIA is hiring a Senior Machine Learning Applications and Compiler Engineer to build and maintain high-performance runtime and compiler components for the LPX inference stack. Responsibilities include mapping large-scale inference workloads to NVIDIA systems, extending software ecosystem libraries and tooling, benchmarking and profiling for performance, and collaborating with hardware architects. Requires MS/PhD (or equivalent) with 6 years relevant experience, strong systems programming skills (C/C++ and/or Rust), compiler/runtime development experience (IR design, passes, code generation), familiarity with LLVM/MLIR, and experience with TensorFlow, PyTorch, and ONNX.

Principal Developer Technology Engineer working on advanced rendering (including path tracing and neural graphics) and AI in games. Responsibilities include developing, profiling and optimizing neural rendering algorithms and AI models for GPU/CPU, collaborating with AAA game developers and NVIDIA architecture/driver teams, building demos, writing whitepapers and presenting work. Requires a masters (or equivalent), 15+ years' relevant experience, strong C++ and software engineering skills, deep math (linear algebra, calculus), real-time graphics and GPU/CPU architecture expertise, and familiarity with APIs like DirectX or Vulkan. Open to travel for on-site visits and conferences.

NVIDIA is hiring a Security Research Architect to design and implement security solutions across applications, OS, drivers, and device firmware, work on hardware/software security projects, perform architectural modeling and validation, and collaborate with internal teams, customers, and partners. Requires a BSc/MS/PhD or equivalent, 4+ years' experience, OS design knowledge, and programming in Python and C/C++.

Responsible for architecting and implementing a cloud detection system that processes billions of events across multi-cloud environments. Collaborate with security researchers to turn research into scalable detections; work at the intersection of distributed systems, data engineering and security analytics. Role emphasizes backend engineering, scalability, testing, CI and use of cloud platforms and modern infrastructure tooling.

DataCamp is hiring a Principal AI Engineer to lead development of a real-time, adaptive AI tutoring system. Responsibilities include designing prompt architectures and agentic workflows, running rigorous experimentation and custom evaluation, integrating AI into platform systems, and ensuring safety/observability. Required technical experience includes 1+ years building complex LLM-based systems, strong prompt engineering intuition, Python, and familiarity with cloud and CI/CD.

Nearform seeks a Senior Software Engineer specializing in Python and AI to design and build AI-enabled applications. This is a full-time permanent role for candidates based in the UK (remote working with frequent travel to client sites in the UK and Europe). The role requires strong Python and modern AI framework experience, version control (Git), testing, CI/CD, cloud and database experience; Kubernetes, Golang and React are listed as nice-to-haves. Salary is up to £95,000 plus bonus and benefits. Visa sponsorship is not available.

Lead technical direction for LLM inference optimization (Kimchi), improving throughput, lowering latency, and maximizing KV cache efficiency across GPU SKUs and distributed topologies. Requires 5+ years building ML systems/inference or training infrastructure, strong Python, hands-on experience with vLLM/SGLang/TensorRT-LLM, quantization fluency, distributed systems knowledge, and a measurement-first approach. Remote-first role available in multiple European countries.

CrowdStrike seeks a Senior Frontend Engineer to join the Counter Adversary Operations team to design and deliver customer-facing single-page applications and micro-frontends. Responsibilities include building interfaces using Web Components and the Lit framework, working with Ember.js/Kestrel, writing automated tests (Jest/Playwright/Cypress), collaborating with cross-functional teams, and focusing on accessibility and performance. The role requires 7+ years of end-to-end UI/UX ownership and strong skills in TypeScript/JavaScript, HTML/CSS, and modern frontend tooling. Location: London (hybrid).

Nearform seeks a Senior Forward Deployed Engineer (UK-based, permanent, remote with frequent European travel) to design, build and deploy agentic platforms and LLM-powered solutions. Responsibilities include LLM orchestration (e.g., LangGraph, CrewAI, AutoGen), multi-agent systems, RAG pipelines, integrations with APIs and enterprise systems, and Kubernetes-based deployments across cloud, on-premise and hybrid environments. Role expects significant senior-level experience (typically 8+ years).

Senior Mobile Engineer joining a cross-functional product squad to design, implement and maintain features using Kotlin Multiplatform. Responsibilities include end-to-end feature ownership, collaborating with product and design, maintaining code quality and test coverage, mentoring teammates, and working with a stack that includes Kotlin, Jetpack Compose, SwiftUI, kotlinx.coroutines, kotlinx.serialization, Ktor and SQLDelight.

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.

Owner of developer tooling and AI DevX platforms at Ramp: evaluate and integrate AI models/tools, build platforms that enable AI-driven engineering, gather developer feedback, and grow vendor partnerships. Role expects ~8+ years of software engineering experience, Python proficiency, strong backend/infrastructure and data systems expertise, and familiarity with AI coding tools and agents.

Ramp is hiring an Android (Mobile) Engineer to enhance and scale its Android app. Responsibilities include designing, building, and launching new products and features, establishing engineering processes, conducting code reviews, and collaborating with Product and Design. Requires at least 1 year of mobile development experience, proficiency in Kotlin and Compose, and experience launching apps or widely used features. Nice-to-haves include React/TypeScript, backend experience (Python, Flask, SQL), and familiarity with MVVM, coroutines, flows, Gradle, OpenAPI, Buildkite. Role is available in the US (HQ in New York and San Francisco) and remotely in the US and Canada; Ramp also lists benefits for the UK.

Senior Software Engineer role on DoiT's PerfectScale team building large-scale backend services and high-throughput data pipelines. Requires strong Go experience (2–3 years with Go as main language) and 8+ years backend engineering, with expertise in distributed systems, databases (Postgres, ClickHouse), containers (Docker, Kubernetes), microservices, CI/CD and performance optimization. Remote full-time position for listed EMEA countries.

Hands-on senior backend engineer responsible for designing, building, and owning large-scale distributed systems and high-throughput data pipelines (primarily using Go). Requires 8+ years backend experience with 3+ years architecting high-load systems, strong experience with relational and analytical databases (Postgres, ClickHouse), containers and cloud-native tooling (Docker, Kubernetes, GitOps, CI/CD), and performance-sensitive engineering.