AGIQON GmbH — a leading owner-managed Shopware Platinum Partner agency in Mannheim, Baden-Württemberg, Germany — is hiring a Shopware Backend Developer (m/f/d) to design and build the backend of tomorrow’s B2B e-commerce platforms. Specializing in complex Shopware 6 webshops and enterprise portals for clients ranging from dynamic startups to established corporations, AGIQON combines agility, intelligence, and consulting expertise in every project. As a backend developer here, you will implement modular, reusable e-commerce functions and custom Shopware 6 backend plugins using PHP, Symfony, and MySQL — conceiving platform architecture, defining technical requirements, integrating ERP and third-party systems, and helping shape agile development processes for a team that genuinely loves what it does. The company name says it all: AGIlität, IQ, and CONsulting — qualities that flow through every line of code, every client engagement, and every team interaction.
About This Shopware Backend Developer Opportunity — AGIQON GmbH Mannheim
Employer: AGIQON GmbH — an owner-managed, multi-national team of Technical Consultants, Project & Account Managers, Fullstack, Frontend, and Backend Developers, and Digital Performance Consultants — operating as a certified Shopware Platinum Partner agency with a proven track record of complex B2B e-commerce project delivery for a growing and prestigious client portfolio spanning startups to enterprise
Location: Mannheim, Baden-Württemberg — one of Germany’s most dynamic and digitally active metropolitan regions, at the heart of the Rhine-Neckar tech and business cluster, with excellent transport connections to Frankfurt, Stuttgart, and Heidelberg, and a thriving tech and e-commerce ecosystem that makes Mannheim one of Germany’s most attractive locations for backend development talent in 2026
Stack: PHP, Symfony Framework, Shopware 6, MySQL — the industry-leading combination for modern B2B e-commerce backend development in the German and European market — complemented by JavaScript, Xdebug, PHPUnit, and ERP/API integration patterns that reflect real enterprise-grade project requirements
Clients: A prestigious and growing portfolio of B2B clients from startups to corporations — delivering complex Shopware 6 webshops and enterprise portals that require the architectural thinking, plugin development depth, and system integration breadth that only an experienced Shopware Platinum Partner agency team can provide
Why This Shopware Backend Developer Role at AGIQON Stands Out
Shopware Platinum Partner — Real Depth, Real Architecture, Real Impact: Working at a certified Shopware Platinum Partner agency is categorically different from working as an in-house Shopware developer at a single merchant. At AGIQON, you will work across multiple complex B2B projects simultaneously, encounter genuinely diverse technical challenges — custom plugin architectures, ERP integration patterns, performance-critical database design, multi-tenant enterprise portals — and develop Shopware expertise at a depth and breadth that is simply not available in an in-house role. Shopware certifications are explicitly valued and supported.
B2B E-Commerce Architecture — Not Just Tickets, But Platform Design: This role explicitly involves helping to conceive tomorrow’s e-commerce platforms — architecture decisions, technology evaluation, data design, tool selection — not just implementing pre-specified tickets. Backend developers at AGIQON contribute to the technical direction of projects from concept through delivery, and the skills you build in requirement specification writing, technical estimation, and framework evaluation make you a significantly more capable and valuable engineer over time.
Owner-Managed Culture — Respect, Reliability, Responsiveness: AGIQON is owner-managed and specifically designed to provide employees with a successful, respectful working environment characterized by high reliability, responsiveness, and quality — the values that the company also delivers to its clients. This is not a faceless corporate structure: it is an environment where your voice matters, your professional development is genuinely invested in, and the balance between ambition and human sustainability is actively managed.
Flexible Work + Real Benefits — Homeoffice, Smartphone, Childcare, Pension: AGIQON offers flexible working hours, homeoffice options, a premium smartphone for private use, childcare cost contributions, company pension contributions, and individual training & development investment — a benefits package that reflects genuine care for work-life balance and long-term employee wellbeing rather than a checklist of corporate HR talking points.
Position Overview
This Shopware Backend Developer (m/f/d) at AGIQON GmbH in Mannheim bears significant responsibility across B2B e-commerce projects — implementing modular and reusable backend modules and custom plugins for Shopware 6 — helping conceive e-commerce platform architectures including system design, technology selection, data modelling, and tooling decisions — writing technical requirement specifications and translating them into clean, tested, production-ready PHP/Symfony code — integrating third-party systems including ERPs, merchandise management platforms, and external APIs — conducting technical effort estimations — evaluating new web technologies and frameworks for potential adoption — and contributing to the ongoing evolution of AGIQON’s agile development processes in a collaborative, multi-national team environment.
Key Responsibilities
Shopware 6 Plugin Development & E-Commerce Backend Engineering
- Take on significant technical responsibility across B2B e-commerce projects by implementing modular, reusable e-commerce functions and custom backend modules and plugins for Shopware 6 — writing clean, well-structured, object-oriented PHP code that meets AGIQON’s high standards of reliability, maintainability, and performance, and that forms the technical backbone of complex Shopware webshops and enterprise portals for a portfolio of B2B clients ranging from ambitious startups to established corporations
- Help conceive and design e-commerce platforms of tomorrow — contributing to architectural decisions, technology selection, data modelling approaches, and tooling choices in genuine collaboration with project leads, technical consultants, and client stakeholders — bringing your backend expertise to bear at the earliest stages of project design rather than receiving pre-specified implementations, and helping shape platforms that will serve client businesses for years to come
- Search for and define technical solutions — describing them in clear requirement specifications that align client needs, technical constraints, and business objectives — and drive their implementation on the basis of PHP including the Symfony framework, ensuring that AGIQON’s solutions are not only technically correct but architecturally coherent, scalable under load, and genuinely fit for the complex B2B use cases that distinguish AGIQON’s client work from standard Shopware implementations
System Integration, Technical Estimation & Technology Evaluation
- Design and implement interface integrations to external systems — including ERP platforms, merchandise management (Warenwirtschaft) systems, logistics APIs, payment providers, and other third-party services — building the data exchange and synchronization layers that make complex B2B e-commerce platforms genuinely functional in enterprise environments where the webshop is one component of a broader system landscape, and ensuring that integrations are robust, fault-tolerant, and maintainable by the wider team
- Support project planning and scoping with technical effort estimations — providing the development time assessments, complexity analyses, and risk identification inputs that allow AGIQON’s project managers and account managers to deliver accurate client proposals and realistic project timelines, and that reflect your practical understanding of Shopware 6 architecture, plugin development patterns, and the typical technical challenges encountered in B2B e-commerce projects at enterprise scale
- Evaluate new and modern web technologies and frameworks for potential adoption into AGIQON’s technology stack — assessing technical fit, learning curve, community maturity, and long-term maintenance implications — helping keep AGIQON’s technical offering current and competitive in a fast-evolving e-commerce landscape, and contributing to the engineering culture of continuous learning and deliberate technology choice that characterizes a genuinely excellent software development agency
Code Quality, Testing & Agile Process Development
- Maintain and apply rigorous code quality standards throughout the development cycle — including systematic debugging with Xdebug, unit and integration testing with PHPUnit, code review participation, and adherence to PHP best practices and Symfony conventions — ensuring that every feature shipped by the AGIQON backend team is reliable, well-tested, and documented to the level that supports confident long-term maintenance and client trust in the quality of the platforms they have commissioned
- Contribute actively to the ongoing development and improvement of AGIQON’s agile development processes — participating in sprint ceremonies, retrospectives, and process improvement discussions — and bringing a constructive, solutions-focused mindset to the organizational challenges of growing a high-quality software agency: effective handover documentation, cross-functional communication with frontend developers, technical consultants, and project managers, and the continuous refinement of development workflow that allows AGIQON to consistently deliver complex projects on time and to specification
- Work collaboratively within a dynamic, multi-national, and genuinely appreciative team — contributing both technically and culturally to an environment where complex e-commerce project delivery is a shared passion, client success is the collective north star, and individual professional development is treated as a genuine organizational priority rather than a once-yearly performance review checkbox
Qualifications
Essential Requirements (Must-Have)
- Genuine enthusiasm for web development and object-oriented programming with PHP and frameworks such as Symfony — combined with solid JavaScript knowledge that allows you to work effectively in a full project context where backend and frontend code intersect at API boundaries, data structures, and event-driven component interactions
- Hands-on experience with Shopware and the development of custom backend plugins — practical knowledge of Shopware 6’s plugin architecture, including service registration, event subscriber patterns, the Data Abstraction Layer (DAL), custom entity creation, and the configuration and deployment patterns that characterize professional Shopware plugin development for enterprise B2B clients
- Advanced proficiency in MySQL databases — including relational schema design, complex query construction, index optimization, and the performance tuning knowledge that high-traffic, data-intensive B2B e-commerce backends demand when handling large product catalogs, complex pricing rules, and high-volume order processing
- Experience with professional debugging using Xdebug and automated unit testing with PHPUnit — the engineering discipline that separates confident, quality-conscious backend developers from those who rely on trial-and-error fixes and lack the systematic testing foundation that production-grade e-commerce code requires
- A pronounced quality consciousness and the ability to work independently, with customer and solution orientation — combined with genuine team spirit, strong communication skills, and the collaborative mindset that complex multi-disciplinary e-commerce project delivery demands from every member of the development team
Advantageous (Plus)
- Shopware certifications (any tier) — demonstrating formal technical validation of your Shopware expertise and professional commitment to staying current with the platform’s evolving architecture, API capabilities, and best practices
Why Mannheim, Baden-Württemberg — Germany’s E-Commerce Tech Hub
Mannheim is one of Germany’s most dynamic and digitally active cities — the economic and innovation heart of the Rhine-Neckar metropolitan region, home to a thriving tech and digital business community, and a city that combines metropolitan energy and professional opportunity with a genuinely liveable urban environment. Located at the intersection of the Rhine and Neckar rivers, Mannheim offers excellent transport links to Frankfurt (45 minutes by high-speed train), Stuttgart (35 minutes), and Heidelberg (15 minutes) — making it an exceptionally well-connected base for tech and digital professionals in southwest Germany. The Baden-Württemberg region is home to Germany’s highest concentration of technology companies, engineering enterprises, and digital agencies — including a growing Shopware and e-commerce development ecosystem that makes Mannheim an increasingly attractive destination for backend development talent in 2026. Working at AGIQON GmbH in Mannheim means being at the heart of Germany’s most technically accomplished and economically dynamic region, in a role that shapes the B2B e-commerce infrastructure of Germany’s future.
Career Excellence: PHP, Symfony, Shopware 6 Plugin Development, MySQL Advanced, Xdebug, PHPUnit, ERP API Integration, B2B E-Commerce Architecture, Backend Module Engineering, Agile Development — Shopware Backend Developer (m/f/d), AGIQON GmbH, Mannheim, Baden-Württemberg, Germany 2026.
Who Should Apply?
- PHP / Symfony Developers with Shopware Experience — Germany 2026: Backend developers with solid PHP, Symfony, and Shopware 6 plugin development experience — ready to move from in-house roles or smaller agencies to a certified Shopware Platinum Partner environment in Mannheim where the project complexity, technical depth, and career development opportunities are categorically greater
- Shopware Plugin Developers — B2B E-Commerce Germany: Developers with specific Shopware 6 plugin development skills — custom entities, DAL, event subscribers, API integration — who want to work on challenging B2B e-commerce architectures across multiple prestigious client projects at Germany’s leading Shopware agency in Baden-Württemberg
- Backend Engineers — E-Commerce Platform Architecture Germany: Backend engineers with strong MySQL, PHP OOP, and Symfony skills who want to participate in genuine platform architecture decisions — conceiving system designs, evaluating new frameworks, and defining technical requirements — at a growing Mannheim agency where backend developers shape the technical direction of projects from day one
- Developers Seeking Homeoffice + Flexible Hours Germany: PHP/Symfony/Shopware backend developers seeking a permanent full-time role with genuine homeoffice flexibility, flexible hours, a premium smartphone benefit, childcare support, and a structured onboarding program — at a respectful, owner-managed Shopware Platinum Partner agency that genuinely invests in work-life balance and long-term employee development
- Shopware Certified Developers — Platinum Partner Agency Career Germany: Shopware-certified backend developers seeking a career opportunity at a Platinum Partner agency in Mannheim, Baden-Württemberg — where PHP, Symfony, Shopware 6, MySQL, Xdebug, PHPUnit, ERP integration, and B2B e-commerce architecture expertise combine in a professionally rewarding, permanently secure, and team-oriented agency career with real development depth and genuine human culture
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