GVLab

Mission Brief

GLS Konto Eröffnung

Nachhaltige GLS Bank: Sozial-ökologische Bank seit 1974

GLS Konto Eröffnung
Launched
  • PHP
  • Symfony
  • JavaScript
  • HTML & CSS
  • Cypress
  • MySQL
  • Jenkins

Build Log

Case study

Notes from the trenches—goals, obstacles, and shipping moments.

💼 Experience / Project Entry

Senior PHP Developer — Banking Customer Registration Platform
Client: Confidential Bank (via [Company/Contract]) | [2021–now]

As a Senior PHP Developer, I played a key role in developing a large-scale customer onboarding platform for a major bank. The project required designing and implementing secure, multi-step registration forms integrated with the bank’s internal systems and third-party verification services. My focus was on backend architecture, front-end integration, and performance optimization within Symfony.

Key Responsibilities

  • System Design & Architecture

    • Defined and implemented the registration process flow, handling complex data dependencies and validation across multiple form steps.

    • Designed a modular Symfony-based architecture, enabling easy scalability and maintainability of registration modules.

  • API Integration

    • Integrated with Agree21 (core banking system) and Postident APIs for identity verification and customer data processing.

    • Developed secure API communication layers and handled sensitive data according to banking compliance standards (GDPR & internal policies).

  • Backend Development

    • Built and optimized object-oriented PHP components within Symfony to manage high-complexity data structures efficiently.

    • Applied best practices for performance, security, and testability across the entire codebase.

  • Frontend & E2E Testing

    • Designed and implemented user-friendly registration interfaces.

    • Developed end-to-end (E2E) testing suites to ensure consistency across multiple user scenarios.

    • Worked closely with UI/UX designers to ensure an accessible and visually consistent front-end experience.

  • Custom Backoffice Development

    • Built an internal Backoffice module for bank employees to review, approve, and manage registration data.

    • Ensured role-based access control (RBAC), audit logs, and secure data handling.

Business Input form


Key Achievements

  • Delivered a fully automated onboarding workflow, reducing manual processing time significantly.

  • Improved system reliability and data consistency through optimized Symfony components and structured OOP principles.

  • Enhanced developer productivity by modularizing API integrations and form workflows.

  • Supported QA and business teams with maintainable test suites and process documentation.


Tech Stack

Languages & Frameworks: PHP (Symfony), JavaScript (ES6, Vue.js optional), HTML5, CSS3
Tools & Libraries: PHPUnit, Cypress (E2E), REST APIs, Postman
Integrations: Agree21 System, Postident APIs
Database: MySQL / PostgreSQL
Other: Git, CI/CD, Docker, Agile environment


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