Senior Frontend Engineer (PKI/Certificates)

• 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
• We build our products over SiftOS following the Sift engineering practices

Do you have experience in Scalability?, We are seeking a talented Software Engineer who prioritizes 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 backend.

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. We believe in using the right tool for the right problem and regularly use different programming languages.

• 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.

• Sift Engineering is a strong plus., Barcelona, Madrid or London would be ideal but we would be happy to accommodate fully-remote working arrangements in locations with similar time zones.

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

Full remote work, with the option to visit our office in London or Barcelona

25 days of vacation in addition to public holidays per year

Day off on your birthday

️ A training budget

Health Insurance for you and your family members

Maternity / Paternity leave

️ Gym membership

Cycle to work scheme

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 Certificates team builds a comprehensive solution that delivers complete visibility into digital certificates and prevents misconfigurations, downtime, and infrastructure attacks before they escalate. The product strengthens attack surface management by enabling real-time discovery of new certificates and continuous monitoring for expiration, revocation, and other infrastructure issues. We're a cross-functional squad of Product, Backend, Frontend, Security, SRE/DevOps who own design, implementation, testing and production support end-to-end. We prioritise innovation and automation at scale. With an ambitious roadmap and evolving PKI and PQC landscape, we experiment, iterate, and build modern solutions that push the boundaries of reliability, scalability, and developer experience.