Cyber Security Staff Engineer - AWS Cloud

Solaris is Europe's leading embedded finance platform. Solaris’ full German banking license and proprietary modular B2B tech stack empowers its partners – from SMEs to large, multinational, non-financial companies – to offer compliant, customer-centric banking services, providing seamless experiences to customers across all industries. Founded in 2016, Solaris pioneered the Banking-as-a-Service market with an unparalleled combination of tech and banking. Solaris is headquartered in Berlin and employs 300 people in Europe.

• Partner closely with the existing Cloud Architecture and Engineering teams to audit the current AWS environment, identify security technical debt, and plan the refactoring of legacy resources into secure Terraform code.
• Design, deploy, tune, and maintain AWS WAF (Web Application Firewall) policies and rulesets to proactively protect corporate applications and APIs against application-layer attacks (OWASP Top 10, bots, and zero-day exploits).
• Establish and enforce cloud security guardrails, multi-account structures (AWS Organizations/Control Tower), and Service Control Policies (SCPs) in collaboration with the infrastructure team.
• Help on define and audit AWS Identity and Access Management (IAM) strategies, guiding engineering teams to transition from over-privileged legacy roles toward the principle of least privilege.
• Manage and optimize cloud-native security monitoring and detection tools (AWS Security Hub, GuardDuty, CloudTrail, Inspector, or KMS).
• Help on the incident respond for AWS-specific security alerts, performing cloud forensic analysis and coordinating containment strategies.
• Ensure the AWS cloud ecosystem remains fully compliant with relevant financial regulations, internal policies, and security frameworks (NIST, CIS, BaFin requirements).
• Lead the security automatizations on the AWS environment.
• Understanding of AWS native AI capabilities (ie Bedrock or Quick)

Depending on your level of experience, your responsibilities and scope of role will range. We don’t care much about fancy titles, but rather about real personal and professional development, as laid out in our learning framework. Let’s figure together out how you can contribute to our team.

• A degree in Computer Science, Cloud Computing, Cyber Security, Information Technology, or equivalent professional experience.
• You have spent 5+ years of dedicated professional experience in Cloud Security Engineering, with a proven track record of securing complex AWS environments.
• AWS WAF & Edge Security: Deep hands-on experience designing, implementing, and fine-tuning AWS WAF, AWS Shield, and CloudFront to protect public-facing application endpoints.
• Advanced Terraform & IaC: Strong proficiency in Terraform and auditing IaC templates for security drifts.
• AWS Security Governance: Mastery of AWS native security tools (IAM, KMS, Security Hub, GuardDuty) and multi-account security architecture.
• Collaboration with Engineering: Experience working alongside separate, established Cloud Architecture or DevOps teams, acting as a security consultant rather than a solo administrator.
• Understands agile workflows and lean principles.
• Technical leadership, cross-team collaboration, and cloud governance focus.
• Business proficient written and spoken English.
• Highly Valued Certification: AWS Certified Security - Specialty. AWS Certified Solutions Architect (Associate/Professional) is a strong plus.
• Exceptional diplomatic and communication skills to align security requirements with the objectives of the existing Architecture and Engineering teams.
• Thinking: Structured and analytical approach to untangling legacy cloud setups and defining clear, secure milestones.
• Empathic team player who avoids the "silo" mentality and focuses on enabling other teams to build securely.
• Proactive peer that helps the growth of the team.
• Curious, constant learner that is willing to share learning with others.