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