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The Role
Lead the architecture and hands-on evolution of enterprise Adobe Commerce and Magento 2 platforms. Design safe extensions and integrations with ERP, PIM, OMS, and CRM systems; review critical code; maintain backward compatibility; reduce regression risk; diagnose complex issues; and guide engineers through incremental improvements. The role also includes technical discovery, pre-sales assessments, architectural documentation, and communication of technical trade-offs.
Summary Generated by Built In
Decima builds and evolves complex commerce systems that power global brands.
We’re looking for a Lead Backend Engineer who operates at an architect level but stays deeply hands-on.
Most of our clients already have large, business-critical Adobe Commerce (Magento 2) platforms in place. Your role is not to rebuild them from scratch — but to carefully evolve, extend, and improve them without breaking what already works.
This requires a different mindset: understanding existing systems deeply, making safe and well-reasoned changes, and balancing long-term architecture with real-world constraints.
You’ll be the person engineers rely on when changes are risky, and the one clients trust when stability matters as much as progress.
We’re looking for a Lead Backend Engineer who operates at an architect level but stays deeply hands-on.
Most of our clients already have large, business-critical Adobe Commerce (Magento 2) platforms in place. Your role is not to rebuild them from scratch — but to carefully evolve, extend, and improve them without breaking what already works.
This requires a different mindset: understanding existing systems deeply, making safe and well-reasoned changes, and balancing long-term architecture with real-world constraints.
You’ll be the person engineers rely on when changes are risky, and the one clients trust when stability matters as much as progress.
Role Overview
- In this role, you will lead the evolution of existing enterprise Adobe Commerce Cloud platforms — introducing new features, integrations, and improvements while preserving system stability.
- You’ll work within complex, already-built ecosystems, making thoughtful architectural decisions that respect existing constraints and minimize risk.
- This is a hands-on role — you’ll actively contribute to implementation, review critical code, and ensure that every change is safe, scalable, and aligned with the overall system design.
Responsibilities
- Own architecture decisions within existing Magento 2 systems — balancing improvement with stability.
- Analyze and deeply understand legacy codebases and current system behavior before making changes.
- Design extensions and integrations that fit cleanly into existing architecture.
- Ensure backward compatibility and minimize regression risk in all changes.
- Lead complex integrations with ERP, PIM, OMS, CRM systems within existing environments.
- Review critical code changes with a focus on safety, performance, and maintainability.
- Identify architectural risks and propose safe, incremental improvements.
- Guide the team in making thoughtful, non-breaking changes.
- Participate in discovery and pre-sales — assessing existing systems and proposing realistic solutions.
- Document decisions with clear reasoning and trade-offs.
Requirements
- 8+ years of professional software development experience.
- 5+ years of hands-on Magento 2 / Adobe Commerce Cloud development.
- Deep understanding of Magento 2 architecture - DI, plugins, service contracts, extension attributes, event/observer patterns.
- Proven experience designing integrations with ERP, OMS, or PIM systems (SAP, NetSuite, Akeneo, or similar).
- Strong PHP engineering skills, OOP, and design patterns.
- Experience with APIs (REST, GraphQL) and service-oriented architecture.
- Experience with cloud environments and DevOps (CI/CD, Docker, AWS/GCP, Magento Cloud).
- Prior experience in a lead or architect-level role with ownership of technical decisions.
- Strong communication skills - able to explain technical decisions clearly.
- Experience working with large, existing Magento 2 codebases (not only greenfield projects).
- Strong ability to understand and safely modify legacy systems.
- Experience delivering improvements without full rewrites.
- Ability to balance ideal architecture with real-world constraints.
- Strong debugging and root-cause analysis skills in complex systems.
- Experience working in environments where system stability is critical. В
Core Technical Requirements
Engineering Mindset
We Offer
- Work on enterprise commerce systems powering global brands.
- Real architectural ownership
- Supportive, transparent, and collaborative team culture.
- Ongoing professional development and learning support.
Skills Required
- 8+ years of professional software development experience
- 5+ years of hands-on Magento 2 or Adobe Commerce Cloud development
- Deep understanding of Magento 2 architecture, including dependency injection, plugins, service contracts, extension attributes, and event or observer patterns
- Experience designing ERP, OMS, or PIM integrations, such as SAP, NetSuite, or Akeneo
- Strong PHP engineering skills, object-oriented programming, and design patterns
- Experience with REST, GraphQL, and service-oriented architecture
- Experience with cloud environments and DevOps, including CI/CD, Docker, AWS, GCP, or Magento Cloud
- Prior lead- or architect-level experience with ownership of technical decisions
- Strong communication skills and ability to explain technical decisions clearly
- Experience working with large, existing Magento 2 codebases rather than only greenfield projects
- Ability to understand and safely modify legacy systems
- Experience delivering improvements without full rewrites
- Ability to balance ideal architecture with real-world constraints
- Strong debugging and root-cause analysis skills in complex systems
- Experience working in environments where system stability is critical
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The Company
What We Do
At Decima Digital, our strength lies in the people behind the code. Our team includes experts who’ve been part of Magento since its earliest days—some having worked in the official Magento Professional Services team (ECG), which supported Magento’s most strategic clients. This gives us unique insight into the platform’s core architecture and best practices that few others can match. We offer full-cycle delivery—from discovery and prototyping to design, development, launch, and long-term support. Whether you’re building a new Adobe Commerce storefront or evolving a complex ecosystem, we move fast without compromising quality. What sets us apart even further is our use of AI-powered testing. This allows us to significantly accelerate release cycles, reduce manual QA effort, and increase test coverage—all while saving our clients time and budget. Most importantly, we approach every engagement by understanding the real problem our client is trying to solve. We don’t push a pre-defined template—we recommend and deliver the best solution for the job, tailored to your goals, stack, and customers.
