Senior Software Architect - Checkout Engine & POS Expert

Extenda Retail; Stockholms kommun; On-site; SEK 1,500,000 - 2,100,000; Full time

Job summary

Extenda Retail is seeking a Senior Software Architect to act as the technical authority for the Checkout Engine. This hands-on leadership role combines software architecture with POS domain expertise, ensuring a fast, fault-tolerant, and scalable platform for global retail loads.

The position features up to 50% hands-on coding in Java, prototyping, and collaboration with teams to validate architectural decisions, starting with a 6-month Architectural Immersion phase to build deep technical

Qualifications

• Seasoned engineering leader who loves complex distributed systems.
• Strong background in retail/SaaS domain with POS understanding.
• Expert-level Java skills and modern architectural patterns.
• Experience mentoring teams and leading agile practices.

Responsibilities

• Define and own the architecture lifecycle of the Checkout Engine.
• Spend up to 50% of time prototyping and coding in Java; mentor teams.

Skills

Retail tech

Java architecture

Cloud native

Mentor leadership

Job description

Extenda Retail is seeking a Senior Software Architect to act as the technical authority for the Checkout Engine. This hands-on leadership role combines software architecture with POS domain expertise, ensuring a fast, fault-tolerant, and scalable platform for global retail loads.

The position features up to 50% hands-on coding in Java, prototyping, and collaboration with teams to validate architectural decisions, starting with a 6-month Architectural Immersion phase to build deep technical