Job
- Level
- Senior
- Job Field
- Web, Full Stack
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Mainz
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you develop complex Drupal solutions, oversee projects from concept to go-live, design architectures, consult with clients, and optimize existing systems and performance.
Job Technologies
Your role in the team
- As a (Senior) Drupal Developer (m/f/d) at 3st, you develop sophisticated Drupal solutions for renowned clients such as ZDF Studios, Puma, GIZ, or the Federal Environment Agency.
- You work in agile teams on complex web platforms and actively contribute your experience to architecture, technology, and process decisions.
- You design, develop, and manage complex Drupal projects (Frontend & Backend) — from conception to go-live and beyond.
- You develop high-performance, scalable backends, custom modules, and robust APIs.
- You analyze existing systems, develop them further, and ensure sustainable maintenance and stability.
- You provide our clients with technical and conceptual advice — clearly, solution-oriented, and on equal footing.
- You actively contribute to architecture decisions, code reviews, and technical standards.
- You help to continuously improve our development processes, toolchains, and code quality.
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Our expectations of you
Qualifications
- Drupal expertise (CMS architecture, Drupal API, module development, DDEV, Twig, htmx).
- Proficient in Git, relational databases (e.g., MySQL or PostgreSQL), as well as common development and deployment workflows.
- High quality awareness, structured working approach, and a good sense for usability.
- Team spirit, strong communication skills, and enjoyment in taking responsibility.
- Optimization of Drupal installations under high load - including caching strategies (Varnish, CDN integration), database tuning, and analysis of performance bottlenecks.
- Use of Drupal as a headless CMS in combination with modern frontend technologies (e.g., via JSON:API, GraphQL, or decoupled architectures with Next.js, Nuxt, Tanstack, or Gatsby).
- Hardening of complex Drupal installations - from security-relevant configurations and Content Security Policies to regular security audits and update strategies.
- Migration of existing systems to new project setups and infrastructures.
Experience
- Several years of solid professional experience in developing modern web applications with a focus on Drupal.
- Very good knowledge of PHP as well as experience with modern web technologies (such as Docker, Redis, Solr, Elasticsearch).
- Experience with frameworks such as Symfony (particularly in the Drupal context), optionally complemented by frontend frameworks like React or Vue.
- Experience in working with APIs, performance optimization, and security aspects.
- Ideally, you also have experience in one or more of the following areas: planning, building, and operating large Drupal multisite installations with a shared codebase and multi-tenant configuration.
- Experience with multiserver or cluster architectures for Drupal (e.g., load balancing, shared file systems, database replication, Redis/Memcached for session and cache management).
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What we offer
- A creative and appreciative agency atmosphere where numerous award-winning works are created.
- The development of comprehensive solutions for international clients, from DAX-listed companies to Hidden Champions.
- A flexible working time model with flextime, full overtime compensation, and a hybrid mobile office concept.
- Extensive opportunities for internal and external training (e.g., via LinkedIn Learning).
- Regular team events, health initiatives, special gym discounts, free drinks, fruit, and ice cream in summer.
- The most beautiful home port with an unobstructed Rhine view!
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Benefits
Health, Fitness & Fun
Work-Life-Integration
Topics that you deal with on the job
Job Locations
This is your employer
3st digital GmbH
We are an owner-run agency for design and cross-media corporate communication. We offer our clients advice and guidance in the fields of branding, editorial design, financial communication and new media.
Description
- Founding year
- 1997
- Company Type
- Digital Agency
- Working Model
- Hybrid, Onsite
- Industry
- Advertising, Marketing, PR, Internet, IT, Telecommunication
Senior Drupal Developer
- Location
- Mainz
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
