About the role
A newly funded cybersecurity startup in Berlin is looking for a Founding Backend Engineer (Go) to join as a founding team member and help build the technical 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 highly motivated, hands-on, and product-minded Founding Backend Engineer for a hybrid role based in central Berlin, Potsdamer Platz. If you are passionate about cybersecurity and AI technology, thrive in fast-paced startup environments, and enjoy building complex platforms from scratch, this is an opportunity to make a real impact.
We are seeking an experienced Go engineer to design and build the core backend architecture of the platform from day one. You will develop scalable cloud-native services, APIs, data models, messaging systems, and AI-driven capabilities using technologies such as Go, AWS, Kubernetes, PostgreSQL, Neo4j, Kafka, Terraform, LangChain, Bedrock, and pgvector.
The ideal candidate has at least five years of Go experience, a strong hands-on coding mentality, and experience supporting production SaaS platforms. You should be comfortable taking full technical ownership, troubleshooting systems end to end, working closely with the CEO, CPTO, product, frontend, and DevOps teams, and making critical architectural decisions in an early-stage startup environment.
The position is hybrid and requires regular presence in the Berlin office. Candidates should already be based in Berlin or be willing to relocate within a short timeframe.
Tasks
Develop and maintain backend applications using Go
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
5+ years of GoLang experience
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
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
Find Jobs in Germany on Arbeitnow