c/side

👥 11-50💰 $6,000,000 Seed 8 months agoArtificial Intelligence (AI)Information TechnologyCyber SecurityNetwork Security💼 Private Company
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c/side is a cybersecurity company revolutionizing web security by focusing on browser-side vulnerabilities. We provide innovative monitoring solutions that optimize, and safeguard third-party scripts, protecting websites from malicious code injection. Our AI-driven detection engine and advanced proxy service identify and neutralize threats in real time, enhancing both security and performance. We're a dynamic team of highly capable subject matter experts driven by a shared mission: protecting end users and making a real impact in the web security landscape. We offer a culture that values strong opinions, loosely held, and a commitment to building great products without cutting corners. Our engineering culture is centered around continuous learning and development, fostering an environment where everyone grows together. We use cutting-edge technologies like JavaScript, and AI, but the specific tech stack is not specified in the provided context. Since our founding in January 2024, c/side has secured $7.7 million in pre-seed funding from Uncork Ventures, Mantis Ventures, and others. This funding supports our growth and enables us to build a world-class security company. We offer a fully remote work environment with EU/UK working hours and a variety of benefits, including stock options and generous work-from-home allowances, reflecting our investment in our team's long-term career development.

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📍 Spain

🧭 Full-Time

🔍 Web Security

  • You are fluent in Rust, and aren’t afraid to go deep on performance tuning, concurrency, or memory safety.
  • You are also comfortable working in Go, and can navigate Typescript when needed. Or you are motivated to learn if it’s new to you.
  • You have strong systems thinking and enjoy reasoning about complex distributed systems.
  • You have worked with event-driven systems and have experience with Kafka, RabbitMQ, or similar message queues.
  • You’re confident deploying and operating services on AWS, and understand the trade-offs between managed services and custom infrastructure.
  • You are familiar with or are excited to learn how attackers operate and how to design systems that make their job harder.
  • You are experienced with designing APIs and backend architectures that are robust and secure by default.
  • Design and build high-performance backend services in Rust to process large-scale data from web security monitoring.
  • Assist in maintaining and enhancing other backend services written in Go.
  • Collaborate with security researchers to turn detection prototypes into production-grade systems.
  • Work closely with the infrastructure team to ensure observability, reliability, and scalability.
  • Contribute to design discussions and technical decision-making for evolving our backend platform.

AWSBackend DevelopmentCybersecurityKafkaKubernetesAPI testingGoRustMicroservicesSoftware Engineering

Posted 6 days ago
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📍 Spain

🧭 Full-Time

🔍 Web Security

  • You love TypeScript, creating extensive types that make the developer experience easier.
  • Proven experience in monitoring, alerting and debugging high volume production systems.
  • Solid understanding of a public cloud platform like AWS.
  • Have deep experience in GraphQL and React Relay.
  • Experience with browser environments and client-side security is a significant plus.
  • Experience in Clickhouse is a significant plus, but must be willing to learn.
  • Scope projects together with product, design and back-end team and drive them to a successful conclusion.
  • Build features end-to-end from the API to the frontend.
  • Write clean and concise documentation.
  • Build and improve applications using React/NextJS, TailwindCSS, Clickhouse, and GraphQL with Relay.
  • Ability to mentor and support team members, fostering a collaborative and learning-oriented environment.

AWSBackend DevelopmentGraphQLFrontend DevelopmentFull Stack DevelopmentReact.jsTypeScriptClickhouseNext.jsMicroservices

Posted 8 days ago
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📍 Spain

🧭 Full-Time

🔍 Web Security

  • You are fluent in Rust, and aren’t afraid to go deep on performance tuning, concurrency, or memory safety.
  • You are also comfortable working in Go, and can navigate Typescript when needed. Or you are motivated to learn if it’s new to you.
  • You have strong systems thinking and enjoy reasoning about complex distributed systems.
  • You have worked with event-driven systems and have experience with Kafka, RabbitMQ, or similar message queues.
  • You’re confident deploying and operating services on AWS, and understand the trade-offs between managed services and custom infrastructure.
  • You are experienced with designing APIs and backend architectures that are robust and secure by default.
  • Design and build high-performance backend services in Rust to process large-scale data from web security monitoring.
  • Assist in maintaining and enhancing other backend services written in Go.
  • Collaborate with security researchers to turn detection prototypes into production-grade systems.
  • Work closely with the infrastructure team to ensure observability, reliability, and scalability.
  • Contribute to design discussions and technical decision-making for evolving our backend platform.

AWSBackend DevelopmentCybersecurityKafkaKubernetesAPI testingGoRustRESTful APIsMicroservices

Posted 9 days ago
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📍 Spain

🧭 Full-Time

🔍 Web Security

  • Have strong proficiency working with databases, optimising overall performance and queries.
  • Have strong proficiency and deep understanding of secure implementations on cloud providers like AWS, Azure, GCP.
  • You know how to configure Linux nodes for optimal performance at scale.
  • Have used services like AWS CDK, EKS, ASG and more.
  • You’re a lover of Kubernetes. You dig deep, get how to make things scale.
  • You hate to make manual changes to systems, and you have experience in infrastructure as code (IaC), so you have experience writing code.
  • Know how to pinch a penny when it comes to getting the most out of modern infrastructure.
  • You have over 4 years experience owning, managing and securing distributed systems on cloud providers.
  • Manage our cloud infrastructure, build and improve our data infrastructure globally, manage capacity and stay on top of performance.
  • Have a special focus on ensuring our databases run smoothly and securely
  • Build our infrastructure to be ultra reliable and failure resistant.
  • Make sure our architecture meets and exceeds industry compliance standards.
  • C/side is a kubernetes shop, you’ll be in charge of building out our clusters around the world.
  • Writing Github actions for CI, ArgoCD for kubernetes, and Opentofu for cloud resources.
  • Building and maintaining our observability solution, ensuring alerts are kept relevant and up to date.
  • Manage AWS (and similar cloud provider) security.

AWSSQLAWS EKSBashCloud ComputingGitKubernetesClickhouseData engineeringGrafanaPrometheusCI/CDRESTful APIsLinuxTerraformJSON

Posted about 2 months ago
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