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SCS provides its services to various trading and settlement locations and offers a variety of functionalities related to settlement. The business objectives of the C7 SCS are:

• Safeguard against counterparty risk.
• Reduction of External Settlement Volume.
• Central Risk Management.
• Post-Trade Anonymity.
• Efficient Failure Management.

Technologies: Java 17, Spring Boot 3, Microservices (REST API), Spring Data JPA/Hibernate, Sonar Qube, fortify findings, Mockito, Jenkins, Docker RHEL-OpenShift, Maven, Pod man, GitHub, JIRA, WIKI, Liquibase, Swagger API, AMQP, Apache Camel, GCP Machines Infra setup, Terraform, PostgreSQL, React.js, Instana, Graylog, Daisy LLM Usage, GitHub Copilot.

Roles and Responsibilities:

• Followed SOLID Design Principles for Microservice implementation.
• Reviewed and refactored codes were appropriate in line with best practices, accessibility, security, quality, and performance.
• Developed applications using build tools, Maven, and continuous integration using Jenkins.
• Followed the CI/CD process and ensured that the developed code passed the Sonar Qube quality gate standards.
• Used DBAG Artifactory Repository Manager for updated application images, versions, and jar files.
• Deployed the microservices using the container system Padman and container orchestration tools like OpenShift.
• Used Liquibase for the database version control system.
• Enhanced application performance by optimizing Java code and implementing efficient algorithms.
• Experienced in identifying and remediating known CVEs in third-party libraries using SCA tools to ensure secure and compliant security Clearing Services components, Fixed the issues in SCS components.
• Experienced in vulnerability remediation, including identifying security weaknesses, prioritizing risks, and implementing effective fixes to strengthen SCS System.
• Enabled mTLS for database authentication and broker setups to enforce encrypted, certificate-validated communications.

• Implementation of specified DevOps solutions to automate infrastructure (Terraform, Bicep, CloudFormation, Ansible) on-premises datacenter (Ovirt, Proxmox, Ceph Cluster, MinIO) and private cloud.
• Administration, configuration and implementation of CI/CD DevOps pipelines (GitLab, GitFlow) to support development process (Artifactory, Prometheus, Istio, service mesh, Helm Chart, OpenShift (Red Hat Enterprise) / Kubernetes cluster), Red Hat Satellite.
• Administration, setup, monitoring and patching of Linux infrastructure based on Red Hat Enterprise for Dev, Test and QA.
• Use of Scrum and Kanban methods.
• Administration, configuration and implementation of security standards for deploying on Dev, Test, QA and Prod stages of the new ePA applications.
• Development of new plugins and add-ons needed on current infrastructure.
• Database support.
• Data analytics support (Python, Spark, Pandas, Power BI, Splunk Enterprise).
• Implementation of best practices for DevSecOps and BizDevOps using GitOps (ArgoCD), Streamlit framework, Semaphore Ansible UI.
• Configuration and testing of iperf, uperf, sysbench using benchmark-operator for external source data and IoT/MDM devices, creating reports via ELK / OpenSearch.
• Building a new Databricks platform to collect and analyze big data from different sources and IoT devices into Hadoop framework (Python, Pandas, PySpark, Power BI, Apache Airflow).
• Building backend data aggregation and processing to automate configuration deployment between different OpenShift clusters and big data framework (Python, Pandas, PySpark, Apache Spark, PostgreSQL, Django 2, Ansible Automation, Jira JSM).
• Building a new ML pipeline platform using Kubeflow, TensorFlow, KServe.
• Data extraction, transformation and loading from different data sources including structured and unstructured data to analytic DWH / big data cluster using Python, Pandas, Polars, Power BI, Django backend and PostgreSQL.
• Setup of new DevOps Test and QA HashiCorp Vault cluster for PKI and IAM.
• Configuration and testing of automated patching based on CVSS score, SIEM-integrated CVEs.
• Use of Nexpose and InsightVM to scan vulnerability events in network, host, container and application.
• Design and implementation of secure and scalable AWS architectures including VPC, EC2, S3, RDS and Route53 and similar setups on Azure and GCP.
• Automated system provisioning and deployment using CloudFormation templates.
• Configuration of IAM roles, policies and permissions to ensure secure access control.
• Patch management, backup automation and disaster recovery setup on AWS infrastructure.
• Monitoring and optimization of system performance using AWS CloudWatch and AWS Trusted Advisor.
• Support of VMware services (vSphere, Aria, Horizon) and the virtual desktop environment.
• Development and maintenance of CI/CD pipelines using Jenkins, GitLab CI/CD and AWS CodePipeline with interface to Nutanix.
• Configuration of AWS CloudWatch to monitor application performance and system events.
• Planning and execution of migration of on-premises applications to AWS cloud platforms.
• Deployment of containerized applications using Docker and Kubernetes in AWS environments.
• Deployment of internal software packages between availability zones using AWS CodeDeploy.
• Building and deploying ML models using Scikit-learn, XGBoost and Spark MLlib including hyperparameter tuning, model evaluation and production deployment.

• Working for customer and internal projects ranging from B2C, B2B applications
• Development and maintenance of customer-facing and internal applications across B2C and B2B domains
• Responsibility for technical direction, architectural decisions and code quality standards
• Design and implementation of scalable application architectures, including modular frontend and service-oriented backend structures
• Conceptual planning and technical execution of the agency website relaunch in Angular
• Rapid prototyping and MVP development for B2B customer projects in the pharmaceutical sector with Vue.js
• Creation of first MVPs for 3D rendering–based products, including real-time visualization and interactive experiences
• Strong UX/UI expertise with a focus on gamification, user engagement and conversion-driven interfaces
• Close collaboration with product management, design and stakeholders to translate business requirements into technical solutions
• Agile software development using Scrum, including sprint planning, reviews and retrospectives, supported by Azure DevOps
• Full-stack development using React, Angular, TypeScript, Vue.js, HTML5, CSS3/SCSS, C#, .NET, Node.js, RESTful APIs, Unity, Azure DevOps, Git and CI/CD pipelines

• Development, operation, and sales of the HelpSpace helpdesk software

• Further development of an application for managing personnel changes.
• Development of frontend and backend.
• Implementation of the frontend with React and Material UI.
• Implementation of the backend with Java and Spring Boot.
• Use of React, Java, Spring, TypeScript, next.js, Material UI, Github Enterprise, Figma, Docker, Playwright, swagger, swagger UI, OpenAPI, npm, yarn, git.

• Work in a rapidly moving environment on scalable and performant organizational features for a growing SaaS creative storage & digital asset management startup
• Optimization of data storage and retrieval routines in hot code paths across a containerized microservice architecture
• Implementation of new feature packages in a largely independent and self-sufficient manner, down the stack; design of both backend architecture and frontend UIs in the absence of templates, mock-ups, or other guide rails
• Autodidactic onboarding, rapid learning and subsequent productive application of technologies I was previously fully unfamiliar with (Ruby/Rails)

• Frontend: new development in Angular
• Backend: new development in ASP.NET Web API
• Database: modeling, implementation, and operation based on Microsoft SQL Server
• Requirements management, design, and implementation
• Deployment, maintenance, operation
• Knowledge transfer to internal staff
• Agile development (SCRUM)

• Led and coordinated consumption and price calculations for gas and electricity forecasts to ensure accurate and reliable pricing
• Implemented modern microservices and Web APIs based on .NET 7 in an Azure environment using Azure App Service, Azure Storage, and Azure Service Bus
• Built and managed infrastructure in Azure using Terraform, including resource deployment and automation of deployment processes
• Developed and maintained Azure DevOps pipelines to optimize build, test, and release workflows
• Optimized data management with SQL Server and ensured seamless integration across all services
• Developed the front end with Angular 16, TypeScript, CSS, HTML, and Kendo UI to deliver an intuitive and engaging user interface

• Developed Skalman’s Food & Sleep Clock web app with a digital assistant that reminds users about medication intake, meals, movement breaks, and other daily routines.

• Implemented personalized meal suggestions and simple recipes with support for allergies and special diets, integrating AI to generate tailored meal ideas.

• Built Flight Booking App using React and Axios for the front end, Spring Boot with JPA and MySQL for the back end, and implemented user authentication, form validation, and booking logic.

• Designed and built a chatbot that accepts natural language queries and generates intelligent responses using OpenAI’s language model.

• Developed MarketPlace_AP with React and Axios on the front end, Spring Boot with JPA and MySQL on the back end, enabling users to discover services or products, with authentication and form validation.

• Created a Meeting Calendar page allowing users to schedule, view, and manage meetings using React, Axios, Spring Boot, JPA, MySQL, and authentication with validation.

• Created a Todo List Manager: built a REST API with Node.js, Express, and MongoDB; developed a React front end featuring status toggling and filtering; deployed on Heroku and integrated with GitHub for CI/CD.

• Full-stack development for new and further development of the Dataport Online Service Infrastructure platform service “Postfach” (electronic mailbox), which ensures the secure sending of notifications and correspondence related to initiated administrative services to connected mailboxes