![Oliver Glas](https://jobicy.com/react/themes/app/images/avatar.jpg) Oliver Glas # Full-Stack API developer Actively looking · Member since 3 Dec 2025 [Message](https://jobicy.com/dashboard-page.md) ShareLocationSwitzerlandDesired salaryfrom 80 USD/hourlyWork preferenceFull TimeExperience levelNot set * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a highly experienced Full-Stack API developer specializing in web services using Java Spring Boot and Angular. With over 20 years of programming experience, I have developed extensive expertise in the architecture, design, and implementation of web and microservice applications. My focus has been on backend development with Spring Boot for more than 6 years and senior Java development with over 15 years of experience. I am also skilled in frontend technologies including React.js and Angular, enabling me to deliver comprehensive full-stack solutions. Throughout my career, I have worked on complex enterprise applications, data warehousing, and CRM interface programming. I am a Linux Certified Professional and a certified network manager, which complements my development skills with strong operational knowledge. I have contributed technical articles on microservice architecture and development, demonstrating my commitment to knowledge sharing and professional standards. I have experience working with both German- and English-speaking teams, which has enhanced my communication and collaboration abilities. My roles have included full-stack development, DevOps, cloud architecture, and API governance, often involving automation, CI/CD pipelines, container orchestration with Kubernetes, and cloud platforms such as Microsoft Azure and Google Cloud. I am self-motivated, solution-oriented, and dedicated to adhering to professional standards. I have led projects involving API-first design, OpenAPI specifications, and microservice development across various industries including banking, finance, and healthcare. My technical proficiency spans Java, Golang, Python, Typescript, and multiple databases, supported by strong DevOps and testing skills. I am passionate about agile development methodologies, pair programming, and continuous learning. I have contributed to open source projects and maintain a presence on GitHub, reflecting my engagement with the developer community. I am confident in delivering scalable, secure, and maintainable software solutions that meet client needs and industry standards. ## Skills 26 capabilities[Angular](https://jobicy.com/talent/angular.md)[Apache Maven](https://jobicy.com/talent/apache-maven.md)[Azure DevOps](https://jobicy.com/talent/azure-devops.md)[CSS](https://jobicy.com/talent/css.md)[DevOps](https://jobicy.com/talent/devops.md)[Docker](https://jobicy.com/talent/docker.md)[Git](https://jobicy.com/talent/git.md)[GitHub](https://jobicy.com/talent/github.md)[Golang](https://jobicy.com/talent/golang.md)[Hibernate](https://jobicy.com/talent/hibernate.md)[HTML](https://jobicy.com/talent/html.md)[Java](https://jobicy.com/talent/java.md)[Jira](https://jobicy.com/talent/jira.md)[Junit](https://jobicy.com/talent/junit.md)[Kafka](https://jobicy.com/talent/kafka.md)[Kubernetes](https://jobicy.com/talent/kubernetes.md)[Linux](https://jobicy.com/talent/linux.md)[Oracle](https://jobicy.com/talent/oracle.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[Postman](https://jobicy.com/talent/postman.md)[Python](https://jobicy.com/talent/python.md)[Scrum](https://jobicy.com/talent/scrum.md)[SCSS](https://jobicy.com/talent/scss.md)[Spring Boot](https://jobicy.com/talent/spring-boot.md)[SQL](https://jobicy.com/talent/sql.md)[TypeScript](https://jobicy.com/talent/typescript.md) ## Experience Career history ### Full-Stack Developer, DevOps · Swiss bank June 2023 – December 2025Digital transformation & modernization, operation and further development of automation and workflows. Operation and development of workflow automation, test environment operation, migration of Java tools to modern web services, backend microservice development with Spring Boot, CI/CD pipeline creation, Kubernetes deployments, frontend development with Typescript and React JS, API-first architecture with OpenAPI, persistence with JPA, Oracle, MS SQL, DevOps tasks including automation and error detection. ### Golang developer, cloud architect · Jondo's commissioned work March 2023 – June 2023Development of a Golang application to improve Linux server security by analyzing access logs and creating firewall rules. Architecture consulting for Linux servers, AWS, and Kubernetes. ### Full Stack Developer · KION Group June 2022 – February 2023Developed full-stack web application with Spring Boot, Angular, Azure Cloud, and MongoDB. Backend microservice development, frontend with Angular and Electron.js, API-first design, Azure Data Engineering, DevOps with Azure DevOps, Kubernetes, Terraform, and workshops on NoSQL and API First. ### Part-time API Developer · WDR Köln and other March – June 2022Part-time projects for cloud automation and microservices with Python, Golang, and Java Spring Boot. API design and development, automation, bug fixing, and deployment with Jenkins and Kubernetes. ### Full Stack Developer and API Designer · Dr. Gueldener Gruppe (Healthcare) January 2021 – March 2022Extended complex Spring Boot application with Angular frontend. Developed RESTful APIs, API documentation, API gateway, service discovery, authentication and authorization, event-driven communication with Kafka, containerization and deployment on Azure Kubernetes, frontend development with Angular, Python scripting for REST API clients, agile development. ### Full-stack Developer and API Architect · Landesbank BW June 2020 – December 2020Developed REST API directory and management system with APIOMAT and Angular 7. Validated API specifications, automated tests, OAuth2 and OpenID implementation, frontend development, test automation with Postman, Karate, JUnit, Jenkins CI/CD, Docker images for Azure AKS, database persistence with Hibernate and Azure Cosmos DB, agile development. ### Project Manager and Java Spring MVC Developer · HCOB Kiel June 2019 – June 2020Planned and designed transition from internal to external developers. Developed Spring REST API services integrating SAP systems. Developed Java applications with SAP interfaces, enhanced banking web services, documented architecture, conducted testing, managed human resources and sub-projects, workflow administration, PL/SQL script checking, mass print administration. ### Part-time Golang Docker Web Portal Developer · Clive Software 2019Customized Portainer dashboard for Docker containers, developed web frontend with AngularJS, REST API backend with Golang microservices, created Docker files and images, administered Docker containers, deployed on AWS EC2, managed AWS Docker repository. ### Java Enterprise Consultant · Energy From Waste April 2019 – May 2019Analyzed enterprise Java architecture, prepared technical documentation, analyzed support tickets and JVM memory management, presented architectural solutions, Java Spring Boot and Spring Data architecture consulting, Java license issues. ### API Designer and Spring Developer · MediaMarktSaturn September 2018 – March 2019Created REST API guidelines, specified REST APIs with Swaggerhub, developed Java microservices on Google Cloud Platform, adhered to API First, BDD, TDD methodologies, integrated PostgreSQL DB, automated API interfaces, provided architecture consulting for GCP, managed CI/CD and code analysis. ### Subproject Lead, Java IT Architecture · Dresdner Bank June 2017 – August 2018Managed migration of Java repository and vulnerability monitoring, planned architecture, managed external staff, created migration documentation, implemented FileCloud, service virtualization, test data management, automated API tests, administered infrastructure. ### Java Spring Boot, REST API, VBA Developer · Kummler+Matter February 2017 – June 2017Developed Java Spring Boot backend and REST APIs, frontend with Angular 5, Excel plugin for time management, data validation, persistence in GCP, remote data processing, SAP import interface. ### Java and VBA Developer · Credit Suisse May 2016 – December 2016Developed migration and automation tools for bank migration and test management, created API interfaces, Excel reports, automated evaluation of financial data, VBS scripting, weekend standby service, Linux and Windows server administration. ### Java Developer & DevOps · Credit Suisse March 2014 – March 2016Analysis and troubleshooting of Java platform, project support for security and isolation, documentation, architecture consulting, toolchain operation, WebSphere server management, Java backend development, Linux shell scripting, automated deployments, 2nd and 3rd level support, batch job setup, database troubleshooting. ### Siebel EAI JavaScript Developer · Commerzbank October 2013 – December 2013CRM desktop form data customizing, synchronization error fixing, XML editing, JavaScript business logic adaptation, deployment scripting, automation and optimization of deployment processes. ### Siebel Consultant · Partners Group Zug August 2013 – September 2013Siebel migration from version 8.1.1.7 to 8.1.1.11, IRM implementation, database upgrade, object manager creation, OpenUI activation, error analysis and fixing, documentation and feature development. ### J2EE Backend and Primefaces Frontend Developer · Zürcher Kantonalbank September 2010 – July 2013Developed MVC pattern website for infrastructure management, Glassfish server setup, JSF frontend, backend persistence with EJB and JPA, API requests with Servlets, authentication with LDAP Spring, portal page design, Siebel workflow integration, Oracle DB connection, 2nd level support, XML/XSLT configuration, Unix shell scripting, Perl and Java automation, Linux and AIX server administration, 2nd and 3rd level support. ## Education Learning history ### Bonner Akademie AprilNetzwerkmanager This professional hasn’t added portfolio projects yet. 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