Founding Backend Engineer(Java)

Berlin Cybersecurity & AI Startup Recently Funded

A newly funded cybersecurity startup in Berlin is looking for a Backend Engineer(Java) to join as a founding team member and help design the core security identity and enforcement foundations of a next-generation AI-powered security risk management platform.

We are an early-stage startup founded by experienced cybersecurity leaders with backgrounds in Israeli Intelligence units. We are looking for a hands-on Founding Backend Engineer(Java) for a hybrid role based in central of Berlin. If you are passionate about cybersecurity and AI tech thrive in fast-paced startup environments and enjoy building complex platforms from the ground up this is an opportunity to make a real impact.

Were building a next-generation cyber risk platform that helps enterprises understand measure and reduce identity risk at scale. Our goal is to turn complex identity and security data into clear actionable risk insights that CISOs and CTOs can trust. You will work from scratch on core platform components from day one shaping how modern enterprises manage and reason about risk using cloud-native systems and AI-driven analysis and automated enforcement through AI Agents.

Tasks

Key Responsibilities

• Develop and maintain backend applications using Java
• Design and optimize cloud-based solutions using AWS services (EC2 Lambda S3 SQS SNS etc.)
• Design use and manage databases including PostgreSQL Neo4J Redis and Elasticsearch
• Develop manage and optimize containerized applications using Docker
• Automate processes using Bash/Python scripting
• Optimize and maintain RESTful APIs ensuring security and performance
• Work closely with frontend engineers DevOps and product team to deliver robust applications
• Monitor debug and improve backend performance reliability and scalability
• Implement caching messaging queues and event-driven architectures where needed
• Build whole platform from scratch

Requirements

Must have skills

• 7 years of Java experience
• 7 years of experience with Spring Boot
• Hands-on coding mentality; can build things from scratch and familiar with different architectures
• Hands-on experience with Docker Kubernetes (EKS) and containerized workloads
• Experience designing RESTful and gRPC APIs and using frameworks like Gin
• Hands-on experience with messaging systems (e.g. SQS Kafka)
• Experience with CI/CD pipelines (GitHub Actions or similar)
• Experience operating PostgreSQL (RDS / Aurora) Neo4J(or similar)
• Experience with AI agents LLM-based systems MCP RAG Prompts Embeddings Vector etc
• Experience with AI stack(AWS Bedrock LangChain pgvector or similar)
• Experience with Infrastructure as Code (Terraform)
• Experience with monitoring logging observability (Grafana OpenTelemetry Prometheus)
• Ability to troubleshoot production issues end to end
• Experience with Coding CoPilots(Claude Code GitHub Copilot AWS CodeWhisperer Codex etc.)
• Experience supporting production SaaS platforms
• Strong understanding of SaaS integrations and app-to-app permission flows
• High ownership mentality startup mindset and ability to move quickly
• Experience in startup or scale-up environments
• Low ego high commitment and a true tech startup mentality
• Strong problem-solving skills and ability to work in a collaborative environment
• Excellent English communication skills
• Nice-to-have requirements
• Experience working with Go
• Ability to code in Python
• Experience with security architecture identity security or security engineering
• Familiarity with compliance frameworks (NIS2 DORA ISO 27001 SOC 2)
• Experience with AWS in production environments
• Exposure to graph-based modeling (identity graph access graph risk graph)
• Familiarity with compliance frameworks (NIS2 DORA ISO 27001 SOC 2)
• Understanding of OAuth/OIDC API tokens IdP scopes SSO SCIM roles RBAC/ABAC service accounts
• Familiarity with cloud identity and security controls (e.g. IAM CloudTrail Azure Active Directory / Entra ID)
• Hands-on with SIEM platforms such as Splunk Microsoft Sentinel or IBM QRadar
• Experience designing permission models identity graphs or access control frameworks
• Knowledge of tokenization Zero Trust principles least privilege and continuous verification
• Experience with Security related to AI/LLM systems agent logic or willingness to learn fast
• Familiarity with AI agent behavior LLM security or agent sandboxing
• Previous experience in cybersecurity identity startups
• You are a fan of rock or metal music
• Excellent German communication skills

Benefits

Benefits

• Founding Team Member Equity ESOPs in a cybersecurity company
• Competitive Compensation salary aligned with market flexible early-stage arrangements possible
• Founding Team Member Status shape the company from day one and own critical technical decisions
• Fresh Funding Secured immediate runway to build hire and execute fast
• Security Contribution contribute to security architecture across identity AI agents and enforcement
• High Autonomy freedom to design and build without corporate overhead
• Work with a Technical CEO and CPTO fast iteration strong alignment clear direction
• Cutting-Edge Domain identity security SaaS-to-SaaS access AI agent governance
• Massive Learning Curve quickly gain depth in cybersecurity identity and AI systems
• Fast Career Path opportunity evolve into leadership as we scale the engineering team
• Berlin Location top-tier tech environment with strong cybersecurity and AI ecosystems
• Direct Impact your architecture and code become the foundation of the entire platform
• Best Equipment and Tools - High quality equipment and modern tools to help you do your best work from day one
• Team Offsites - Regular team offsites designed to build strong connections alignment and shared momentum

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