Haseeb Ahmad

08/2022 – Present • Leipzig, Germany

• Deliver end-to-end development and technical support for Payroll, Accounting and HR management softwares.
• Design and implement new features, resolve bugs, and improve performance in web applications.
• Ensure secure data handling, optimize workflows, and improve overall operational efficiency.
• Work with Python (Django), JavaScript (React/Vue), PostgreSQL and RESTful APIs
• Design and maintain CI/CD pipelines to automate build, testing, and deployment processes, ensuring reliable and consistent releases across environments.
• Actively contribute to sprint planning and collaborating with cross-functional teams to define, estimate, and deliver features aligned with product goals.
• Manage deployment of application releases, coordinating rollout, monitoring system performance, and resolving issues to ensure stable production environments.
• Manage containerized deployments using Docker and leverage AWS services such as EC2, ECS, Lambda, S3, and RDS to build and operate cloud-native solutions.
• Design and maintain GitOps-based deployment workflows, administer a private cloud infrastructure powered by Docker Swarm, and use Portainer for centralized application deployment and management.
• Configure Traefik for load balancing and sticky sessions, and implement centralized logging and observability with Loki, Alloy‚ and Grafana dashboards for monitoring, log analysis, and visualization.
• Develope an automated data pipeline using dbt, Docker Compose, Bash, Linux cron, SSH/SSHFS, and PostgreSQL.
• Implement SSHFS-based data synchronization to expose the DBT container's generated CSV data to the host, followed by Docker bind-mount propagation into the PostgreSQL container for database consumption via file_fdw.
• Develope SHA-256 fingerprint-based change detection using file paths, sizes, and modification timestamps, persisting and comparing signatures to process only new or updated datasets.
• Automate conditional execution and resource cleanup, including SSHFS unmounting and temporary container removal, with cron logging and flock locking to prevent concurrent runs.
• Configure secure SSH key-based authentication and containerized service orchestration with Docker Compose.
• Design and implement a highly available PostgreSQL cluster with streaming data replication, automated failover, and data consistency using PostgreSQL, etcd, HAProxy, Docker Compose and Docker Swarm.
• Integrate PostgreSQL cluster into a GitOps-based deployment workflow with Portainer for automated and consistent infrastructure management.
• Developed and maintained SQL/dbt transformation models across Bronze, Silver and Gold data layers.
• Implemented business event classification logic for service lifecycle events including sales, cancellations, migrations and service changes using macros and reusable dbt models.
• Implemented recursive predecessor/successor lineage logic to identify service continuity and replacement relationships.
• Built and maintained dbt data-quality tests for uniqueness, completeness, accepted values, temporal integrity and business-rule validation.

Jul 2021 – Feb 2022 • Paderborn, Germany · Remote

• Conducted in-depth research on digital B2B platforms to create a comprehensive monitoring approach.
• Collaborated with experts at Fraunhofer IEM to align the monitoring strategy with industry standards.
• Analyzed operational data to identify key performance indicators for effective platform management.
• Designed a state-of-the-art architecture for monitoring B2B platforms and developed a recommendation system to enhance performance.

Sep 2020 – Feb 2022 • Büren, Germany

• Developed both frontend and backend components for the Unity Consulting and Innovation Platform (UCIP) using Vue.js, Python and Azure SQL Database.
• Automated the generation of PowerPoint slides by creating a Python server with FastAPI integrated with the Vue application.
• Utilized Azure Cloud Services, Azure API Management, Git, Docker, and Kubernetes to enhance project efficiency and deployment.

Mar 2020 – Aug 2020 • Bielefeld, Germany

• Administered and maintained the ColdFusion App and Database server to ensure optimal performance.
• Developed the frontend of the Campus Management System using HTML, CSS, JavaScript and TypeScript enhancing user experience.
• Created and deployed an online url link shortener system utilizing JavaScript, HTML, CSS, ColdFusion Server, and MySQL database.

Nov 2018 – Nov 2019 • Paderborn, Germany

• Designed and prototyped user interfaces for static analysis tools, enhancing user experience.
• Developed and maintained software analysis platform utilizing HTML, CSS, Javascript, Python and C++.
• Conducted scripting and data extraction to support user studies, providing insights for product improvements.

Mar 2017 – Sep 2017 • Islamabad, Pakistan

• Developed engaging 3D mobile games using the Unity game engine and C#.
• Designed comprehensive game plans to enhance user experience and gameplay.
• Implemented and tested various functionalities for Android mobile games.

Aug 2015 – Jul 2016 • Islamabad, Pakistan

• Developed a web service to analyze server access logs, focusing on anomaly detection and reporting.
• Designed different dashboards to visualize data related to server logs and anomalies.
• Utilized a technology stack including HTML, CSS, JavaScript, Node.js, API Integration, D3 Graphs and Distributed Database.

Jul 2015 – Aug 2015 • Islamabad, Pakistan

• Developed Windows Desktop Applications using C#, enhancing user experience and functionality.
• Collaborated with senior developers to design application architecture and implement features.
• Gained hands-on experience in software development practices and agile methodologies.