Founding Backend Engineer(Go)

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

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