Senior Frontend Engineer

About us

Red Sift's Digital Resilience Platform solves for the greatest vulnerabilities across the complete attack surface. By providing comprehensive coverage of an organization’s digital footprint through best-in-class discovery and monitoring, Red Sift enables users to proactively uncover threats within email, domains, brand, and the network perimeter. Paired with sophisticated remediation capabilities, Red Sift provides organizations with the tools to shut down phishing and ensure ongoing compliance with email and web security protocols.

We are a global organization with offices in North America, Ireland, Spain, and the UK. It boasts an impressive client base across all industries, including Domino’s, ZoomInfo, Athletic Greens, Pipedrive, and top global law firms. Red Sift is also a trusted partner of Entrust, Microsoft, and Validity, among others.

We are leading the way in AI. Red Sift has been the first to deliver useful AI capabilities in this space and we want to continue leading the way in that front, preparing our products for the future and exposing our capabilities not only to humans but also to AI.

About the team

The mission of the team is to protect against phishing and BEC (Business Email Compromise) attacks with Red Sift OnDMARC, an award-winning, cloud-based DMARC, DKIM and SPF configuration and management. Built on Red Sift’s own AI powered cybersecurity Platform, OnDMARC is here to make implementing such a crucial layer of email protection clearer, simpler and more secure.

The OnDMARC team is a consolidated mix of experts in Product, Frontend, Backend, Testing and Design that work together as a cross-functional team to continuously improve our OnDMARC product for performance, reliability and functionality. With a fair amount of tech debt and a long roadmap for new capabilities, we do whatever it takes to deliver what matters most in our priorities.

About the role

We are seeking a talented Software Engineer who prioritises product and user experience. The ideal candidate understands that effective code is simple, maintainable, and gets the job done efficiently. Fundamental to this role is designing and building out intuitive frontend interfaces supported by scalable and performant backend code. We are looking for a full stack engineer with a strong inclination towards the frontend. You’ll be working on our flagship cybersecurity product, building end-to-end full stack features on top of our data-driven platform. If you’re looking for a role that gives you the opportunity to take on a wide range of responsibilities, with a high degree of autonomy and significant room for growth, then we want to talk to you!

About you

• You are a good human, easy to work with, empathetic, open-minded and a team player.
• Our values (Responsiveness, Empowerment, Diversity, Social Responsibility, Innovation, Fairness, Trust) make sense to you.
• You are driven, and having a lot of autonomy motivates you.
• You have a customer‑centric mindset: you really care about the customer outcomes.
• You understand that every decision you make has trade‑offs and feel confident making decisions while moving quickly and building secure, scalable and resilient solutions to unexplored, complex technical problems.
• You don’t mind rolling up your sleeves and getting your hands dirty with tech debt or digging out annoying bugs.
• You are a collaborative Software Engineer with proven professional experience in JavaScript/TypeScript, React, and Node.js with or a curious interest in learning other languages like Java/Go.
• You possess a strong understanding of cloud computing, microservices, API design, and event‑driven architectures.
• You are skilled in writing unit and integration tests and have experience with NoSQL databases such as Elasticsearch or MongoDB, as well as version control systems like Git.
• You demonstrate strong problem‑solving abilities, attention to detail, and a solid grasp of software design principles, patterns, and best practices, including experience with containerization and orchestration tools like Docker and Kubernetes.
• You are enthusiastic about observability, and take charge of features delivered by monitoring their functionality and effectiveness after deployment.
• You thrive in a team environment, effectively communicating and contributing independently when needed.
• You are comfortable with collaborating with other teams and other departments.
• You are excited about AI and are already integrating AI tools into your daily process.

Not sure you meet every qualification? Apply anyway — especially if you’re familiar with the PKI domain and eager to grow with us.

Our Stack

• Backend: Runs on an in-house platform built on a directed acyclic graph (DAG) model, similar to AWS Lambda or Google Cloud Functions. Backend services primarily built with Java, JavaScript/TypeScript (Node.js), and some Golang. Uses NATS for messaging, the Elastic Stack for search, storage, and observability, and both NoSQL and BigQuery (columnar) databases with extensive SQL for analytics and data processing.
• Frontend: TypeScript/JavaScript using React, running inside of our in-house platform.
• Other: CircleCI, Jest, GCP, AWS, Github.

Location

Barcelona, Madrid or London would be ideal but we would be happy to accommodate fully‑remote working arrangements in locations with similar time zones.

Benefits

• The opportunity to participate in every aspect of the startup journey in rapid scaling mode.
• The chance to participate in our mission to protect organisations and the people within them with cybersecurity software products that outsmart attackers at scale.
• A competitive base salary based on experience in addition to a performance‑based bonus, equity plan and pension scheme.
• Career Progression plan.