Marc Mettke
Verified Expert in Engineering
Security Engineer and Back-end Developer
Schmallenberg, North Rhine-Westphalia, Germany
Toptal member since December 15, 2021
Marc is a security engineer with back-end and cloud engineering experience. He loves to create `secure by design` architecture and systems that enable other engineers to develop new tools instead of worrying about security. In a world where cyber-attacks are common, people like him ensure that company data stays secure. Marc is well-versed with AWS environments, security policies and proficient at approaching infrastructure from a vulnerability perspective to create secure systems.
Portfolio
Experience
- Rust - 3 years
- Lambda Functions - 2 years
- Vulnerability Management - 2 years
- SecOps - 2 years
- Cloud Security - 2 years
- Security Design - 2 years
- Web Security - 2 years
Availability
Preferred Environment
Amazon Web Services (AWS), Visual Studio Code (VS Code), Linux, Rust, Serverless, Git
The most amazing...
...vulnerability management project I delivered aggregates vulnerabilities from various sources, groups them by services, and distributes reports to owners.
Work Experience
Cloud Engineer
Grafbase Inc.
- Managed the AWS organization, created security policies, and conducted monitoring and intrusion detection.
- Created an API using Cloudflare Workers and edge computing as the back end for the Grafbase website and its services.
- Delivered a fully managed GraphQL experience build from a Git repository, containing schema information and automated creation of query and mutation endpoints and custom functions executed on pre-defined triggers.
Security Engineer
Fielmann AG
- Developed a system that aggregates vulnerabilities from multiple sources, group them by services, and distributes them to service owners.
- Managed the AWS organization, created security policies, and conducted monitoring and intrusion detection.
- Supported development teams to build secure and efficient infrastructure in our AWS organization.
Back-end Engineer
Novomind AG
- Created an eCommerce webshop used by companies such as Fjällräven and Globetrotter.
- Introduced the FireMon Service with a review and deployment process for firewall rules.
- Deployed a management service to enroll and deprecate Secure Socket Shell (SSH) keys for a 100+ server environment.
Mobile Developer
itemis AG
- Developed apps for a well-known German sanitary fittings manufacturer for setting up their IoT devices.
- Developed the software for IoT devices sold by a well-known German sanitary fittings manufacturer.
- Managed the CI/CD pipelines for our Android and iOS development teams.
Experience
Vulnerability Management
eCommerce Shop
It was provisioned using an Apache Load Balancer with multiple application instances with the necessary state being shared using an HAProxy set up.
Education
Bachelor's Degree in Software Engineering
FH Dortmund - Dortmund, Germany
Skills
Libraries/APIs
GitHub API
Tools
Amazon Elastic Container Service (ECS), Amazon EKS, Git, Terraform, GitHub, Amazon Simple Queue Service (SQS), Amazon Virtual Private Cloud (VPC), AWS Key Management Service (KMS), AWS CodeBuild, AWS CloudFormation, Apache, NGINX, Vault, VMware, KVM/Qemu, GitLab, GitLab CI/CD, Ansible, Gradle, Amazon CloudFront CDN
Languages
Rust, Java, SQL, TypeScript, Python, C, GraphQL
Paradigms
REST, DevOps, Continuous Delivery (CD), Continuous Integration (CI), Continuous Development (CD), Agile Software Development, Functional Programming, Object-oriented Programming (OOP)
Platforms
AWS Lambda, Amazon EC2, Linux, Docker, Amazon Web Services (AWS), Unix, Kubernetes, Windows, Android, CentOS
Storage
Amazon Aurora, Amazon S3 (AWS S3), MongoDB, MariaDB, PostgreSQL, Amazon DynamoDB
Frameworks
Spring, Android SDK
Other
Lambda Functions, Data & Backup Management, Cloud Security, Web Security, Security Design, SecOps, Vulnerability Management, Application Security, Serverless, Cloudflare, WebAssembly (Wasm), High Availability Disaster Recovery (HADR), Infrastructure, Amazon RDS, Amazon EventBridge, Security Architecture, CI/CD Pipelines, ECS, AWS DevOps, SaaS, Architecture, Cloud Infrastructure, Infrastructure as Code (IaC), IoT Security, Edge Computing, AWS Cloud Architecture, HCP, Firewalls, Juniper, FortiGate, Palo Alto Networks, Bluetooth, HAProxy, AWS Transit Gateway, Direct Connect (DC), Amazon API Gateway, Cloud
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