Harmonic Security Inc

Senior Backend Engineer

London, England - Hybrid, Remote. Posted 18 days ago

The role

You will design, build, and maintain scalable integrations between core applications, identity providers, and data security platforms. This role involves owning backend services in a microservices-based, event-driven architecture.

What you will do

  • Own deliveries and features from start to finish
  • Design, build, and own backend services in a microservices-based, event-driven architecture
  • Implement core domain logic that drives key product workflows and system behavior
  • Ingest and process high-volume usage and event data from customer-facing endpoints
  • Build backend services that support operational, analytics, and reporting use cases
  • Model, persist, and manage domain data
  • Expose well-designed APIs and webhooks
  • Power customer-facing UI experiences by providing backend APIs

Required qualifications

  • 3–5+ years of professional software engineering experience building backend services and distributed systems in the Java ecosystem (Java, Spring Boot, Maven/Gradle)
  • Strong understanding of event-driven architectures, asynchronous processing patterns, messaging systems, and distributed system design
  • Proven experience designing and maintaining RESTful APIs, web hooks, and service-to-service integrations
  • Comfortable operating in AWS, GCP, or Azure environments
  • Working with modern observability tooling, logging, and monitoring platforms
  • A track record of delivering performant, reliable and scalable applications
  • Excellent collaboration and communication skills in cross-functional teams

Nice to have

  • Experience building products in cybersecurity, identity, governance, compliance, data protection, or enterprise SaaS environments
  • Understand why architectural decisions matter
  • Balance scalability, reliability, maintainability, and speed of execution
  • Think critically about security, observability, and operational excellence
  • Strong familiarity with authentication and identity technologies such as OAuth, OpenID Connect (OIDC), SAML, SCIM, Entra ID (Azure AD), Okta, or other enterprise identity providers
  • Thrive in fast-paced startup environments
  • Enjoy shaping culture and engineering practices
  • Leverage AI tools as an engineer

Benefits

  • Competitive pay
  • Meaningful equity
  • 401K
  • pension plan
  • generous PTO
  • flexible hybrid work
  • Annual global off-sites

About the company

Harmonic Security builds an AI Governance and Control (AIGC) platform to provide security teams visibility and control across tools and workflows. The company is named to the Rising in Cyber 2026 list and is backed by N47, Ten Eleven Ventures, and In-Q-Tel.

Senior Backend Engineer at Harmonic Security Inc | JobZoey