Backend Engineer (Sylius | Symfony) 80-100%

Myjob; Dällikon; On-site; CHF 120,000 - 170,000; Full time

Job summary

Myjob is seeking a Backend Engineer to own the core services behind our Swiss e-commerce platforms and internal ERP. You will collaborate with the Lead Backend, CTO, and product teams to design and ship scalable features, focusing on reliability and performance.

You will work on APIs, data modeling, and integrations with third-party services, driving quality and maintainability through CI/CD and tests. Fluency in German or French is a plus in this dynamic scale-up.

Qualifications

• 5+ years of backend development experience, preferably in e-commerce.
• Strong experience with Symfony and Sylius in production environments.
• Proficient in designing REST/GraphQL APIs and data models.
• Familiar with CI/CD pipelines, automated testing, and Git workflows.

Responsibilities

• Build and evolve core backend services powering our e-commerce platforms and ERP.
• Implement reliable, scalable features and APIs; collaborate with frontend, product, and CTO teams.
• Extend Sylius with plugins and custom resources; integrate third-party services.
• Ensure observability, performance, and security best practices across services.

Skills

Symfony

Sylius

REST API

GraphQL

Git

CI/CD

SQL

Tools

Docker

Kubernetes

Job description

• We are a dynamic scale-up and have been revolutionising the Swiss e-commerce market for over 5 years. With our unique platforms — from
• we offer exclusive access to leading products and services to closed communities. In partnership with Twint, we also run the majority of Twint Superdeals
• With 80+ passionate team members across Europe, we generate a mid double-digit million turnover and have grown at an average of 70% annually. Awarded the

We are now looking for a Backend Engineer with strong expertise in Symfony and Sylius to take ownership of building and evolving the core services behind our platforms. You will play a key role in shaping one of the most critical and impactful areas of our business: the systems that power our e-commerce platforms and internal ERP. As one of your first missions, you will work closely with our Lead Backend, CTO, and product teams to implement new features and extend existing applications — contributing directly to the scalability and reliability of our technology stack, a major milestone on our product roadmap

Mission

• Join us as a to build the services and APIs powering our commerce platforms and internal ERP. You will implement reliable, scalable back-end features in with and , helping us ship business-critical functionality at pace and quality. You report directly to our (and collaborate closely with the on key initiatives)
• Design, implement, and extend back-end features in using and
• Build and maintain APIs for our frontends and partners
• Model domains with , write performant queries, and manage migrations
• Apply caching and performance optimization (e.g., , query tuning, HTTP caching)

Sylius & Integrations

• Extend Sylius via plugins, custom resources, and events to support business workflows
• Integrate third-party services (payments, CRM, PIM/ERP, messaging) reliably and securely
• Implement asynchronous processing with and
• Write clean, maintainable, and testable code; practice where it adds value
• Leverage modern practices (, event-driven design) when appropriate
• Contribute to CI/CD pipelines (), code reviews, and automated QA
• Enhance observability (structured logging, metrics, tracing) and security (OWASP basics, authN/Z)
• Collaboration & Delivery
• Work in a cross-functional team with , , , , , and
• Break down features, estimate, and deliver iteratively in
• Document services, contracts, and integration patterns for reuse and onboarding

Several years as a back-end developer; strong in and (≈5+ years)

• Hands-on with (or similar e-commerce frameworks) — plugin/extensibility experience is a big plus
• Solid RDBMS skills: or ; comfortable with schema design and performance tuning
• Experience building and consuming (REST and/or GraphQL)
• Fluent with and Git-based workflows; CI/CD familiarity
• Ability to write clean, efficient, and maintainable code; strong analytical problem-solving
• Enjoy working in a dynamic, agile environment; collaborate effectively across teams
• Comfortable juggling multiple projects and shifting priorities
• Proficient in (spoken & written); German or French is a bonus
• Genuine enthusiasm for technology, programming, and continuous learning

You report directly to our and collaborate closely with the on key technical decisions. Day to day, you’ll work with , , , and the to deliver reliable, performant features