Jenkins Experts in Switzerland

• Led architecture and end-to-end engineering delivery for community-driven SaaS platforms serving 2M+ monthly active users.
• Architected and led the migration of a monolithic Python/FastAPI and PostgreSQL database and LangChain with codebase to an event-driven microservices architecture on AWS EKS, sustaining 10x traffic growth from ~150 RPS to 1,500+ RPS with zero re-architecture cycles.
• Defined and enforced engineering standards across services including API contracts, observability baselines, and deployment topology, reducing production incidents by 55% and MTTR from 2 hours to under 25 minutes within 9 months.
• Redesigned the caching and query layer using multi-tier Redis caching and database indexing/partitioning, cutting p95 API latency from 850ms to 180ms (78% reduction) and database CPU load by 45%.
• Built CI/CD platform on GitHub Actions, Terraform, and Kubernetes (EKS) with blue-green and canary rollouts, increasing deployment frequency from ~2/month to 8-12/day and reducing lead time from 10 days to under 6 hours.
• Implemented contract testing, automated load testing, and observability SLOs using Prometheus, Grafana, and OpenTelemetry, raising platform availability from 99.5% to 99.95% (10x reduction in error budget burn).
• Led and grew a cross-functional team of 8 engineers across backend, frontend, and DevOps, scaling headcount from 4 to 8 with 85% retention; owned hiring, onboarding, performance reviews, and career development.
• Partnered with Product, Design, and Client Success leadership as primary technical decision-maker; translated business goals into technical roadmaps and drove build-vs-buy decisions on authentication, search, and AI tooling.
• Introduced AI-assisted development workflows including automated code review and a RAG-based internal knowledge assistant using Graph (GraphRAG, Neo4J), increasing sprint throughput by 30% across two quarters.
• Owned incident command and production support rotation; established runbooks, postmortem culture, and on-call SLOs, reducing weekend paging incidents by 70%.
• Developed and optimized Algorithms using python libraries like Numpy and Pandas.

MVP app for shock logger to monitor and analyze transport data via BLE as a Kotlin Multiplatform solution for Android and iOS.

• Product strategy, architecture, and technical co-direction
• AI workshops, client onboarding and go-to-market activities
• Design and implementation of AI architectures (LLMs, RAG, MCP, agents, voice, automation)
• Hands-on development of prototypes and production-ready AI integrations
• Consulting clients on AI adoption, workflows, and integration into existing infrastructure
• Collaboration with co-founders on strategic direction
• Collaboration in sales and customer acquisition

Tools and Technologies: OpenAI, Anthropic, Azure, Vercel AI SDK, RAG (Retrieval-Augmented Generation), MCP (Model Context Protocol), FastAgent, VAPI, n8n, make.com, LibreChat, PostgreSQL, OpenAPI, Next.js, Vercel, Docker

• Test strategy design
• Continuous defect tracking and documentation
• Test case creation and execution for performance and end-to-end tests as well as mass tests
• Responsibility for all test activities in the team
• Requirements and documentation analysis
• Agile testing based on stories, epics and features
• Test management and coordination
• Use of SAFe (PI planning, PI preparation, sprints, daily meetings, Kanban board, retrospective, review)
• Use of GitHub, Tortoise, Atlassian JIRA, Confluence, MS Teams, Splunk, Swagger UI, Tosca, Rocket.Chat, Visual Studio Code, Oracle SQL Developer
• SAFe framework and project abroad

• ZHAW CAS Secure Software Design and Development
• German C1 and Goethe Certificate C1
• ETH CAS Cloud and Mobile Computing at ETH Zurich
• Linux Foundation Linux System Administration LFS307
• Linux Foundation Kubernetes Fundamentals LFS258
• Linux Foundation Kubernetes for Application Developers LFD459
• Linux Foundation Kubernetes Security Fundamentals LFS460

• Highest level achieved: Certified Mid-Level Angular Developer
• 13 technologies newly learned or refreshed with (re-)certifications
• Current: Docker, Azure, Quarkus

• Support and further development of the Leegoo Builder
• Handling ad hoc requests
• Definition of rules/attributes and their rules
• Optimizing and managing SQL queries

• Build prototypes, expand AI skills, and practical application in a startup context.
• Transition phase: further training in prompt engineering, APIs, AI, working on independent prototype projects, and collaborating at a friend's startup.
• Technologies: LangChain, REST, Python, Java, JS, TS, Node.

• PoC for various platform integration functionalities using Backstage and Crossplane
• Implementation of improvements of developer experience with Azure AVD and DevSpace
• Manage application deployment infrastructure on Kubernetes clusters
• Manage CI/CD platform
• Manage deployments into Kubernetes (Rancher and AKS) and into Azure
• Act as security champion of the DevOps team
• Manage vulnerabilities and support dev teams to manage third-party vulnerabilities using JFrog Xray
• Support building the platform team
• Manage infrastructure as code using Terraform and Atlantis
• Build and integrate a platform and IDP using Crossplane

• Designed and executed automated and manual test cases for REST APIs and UI workflows using Selenide, Selenium, and Postman.
• Developed and maintained Gatling-based performance tests for simulating user load and validating system responsiveness and stability under stress.
• Integrated test suites into CI/CD pipelines with Jenkins, enabling rapid and reliable delivery cycles.
• Employed Splunk, Grafana, and Prometheus to monitor logs, track metrics, and perform in-depth application performance monitoring (APM).
• Utilized Swagger for validating and documenting API contracts and ensuring consistency across environments.
• Created and managed isolated test environments using Docker, enabling reproducible and consistent test execution.
• Collaborated with cross-functional teams using Confluence, Jira, and Bitbucket for agile planning, documentation, and version control.
• Worked in a Java/Spring Boot tech stack, leveraging Maven for project build automation and IntelliJ IDEA for development and debugging.

Key Achievements:

• Built a reusable Selenide-based UI automation framework that reduced test creation time by over 50%.
• Automated end-to-end test scenarios for critical business workflows, increasing test coverage and release confidence.
• Designed a modular Gatling load testing framework, used for continuous performance benchmarking.
• Detected and resolved several critical production performance issues through proactive APM and stress testing.

• Set up a shift-left DevOps E2E system testing architecture
• Set up "DevOps Shift-left" E2E tests for 240+ applications
• Under NDA

• Implementation and maintenance of highly critical IAM solutions for B2B clients (SSO, MFA, SAML/OIDC, Entra ID, PIM/PAM)
• Security administration of Linux systems (CentOS, Red Hat) in Docker and Kubernetes environments
• Migration from Docker Swarm to Kubernetes
• Infrastructure automation with Terraform
• Planning and execution of risk assessments, threat modeling, and compliance reports
• Development and management of B2B applications (Java, REST/SOAP, Angular) and CI/CD pipelines (Python, Ansible, Jenkins, GitLab)
• Leading integration tests and UAT (Cucumber, Selenium, Katalon)
• Implementing monitoring and observability strategies with Grafana, Prometheus, and Splunk
• Integrating SAST tools like Snyk and SonarQube
• Release management and project coordination according to Scrum and SAFe
• Mentoring and technical support of junior team members

• Responsible for IT integration test and user acceptance test for SAP S/4 Hana and BDO BO Customer Financials Management
• Led the test team (business testers and IT testers)
• Resource planning and control within the test team
• Created test concepts and test plans
• Performed test risk analysis
• Coordinated test execution and defect tracking
• Ensured test progress
• Generated and visualized reports
• Summarized test reports and reported to management
• Prepared and conducted user acceptance tests
• Managed SIGMA and JIRA/Confluence at project level

• The comdirect app for iOS offers an intuitive and user-friendly mobile banking app that allows users to manage their banking efficiently and securely.
• Central features: bank transfers, portfolio analysis, personalized financial manager to facilitate daily banking and financial planning.
• Users: over 1 million.
• Written in native Swift using UIKit and SwiftUI.
• App-wide MVVM and Coordinator design pattern.
• Partial reactive programming using Apple’s Combine framework or vendor RxSwift.
• API integrations and data structures with JSON.
• Documented clean code.
• Continuous integration with Git and Jenkins.
• High unit test coverage with XCTest.
• Agile project setup according to Scrum.