Founding Backend Engineer(Go)

At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio. We are currently seeking a Founding Backend Engineer(Go) to join one of our clients' team in Berlin. If you're looking for an exciting opportunity to grow in a innovative environment, this could be the perfect fit for you.

Key Responsibilities:

- 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

- 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

Nice-to-have requirements:

- Experience working with Java - 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:

- 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