Senior Lead Software Engineer, AI-Driven Merchandising

RELEX Solutions; Stockholms kommun; Hybrid; SEK 900,000 - 1,300,000; Full time

Benefits offered by this job

Flexible work location

International career

Career growth opportunities

Work-life balance

Volunteer days

Job summary

RELEX Solutions in Sweden is seeking a Lead Software Engineer to join our Merchandising team. You will own a product end to end, drive architecture decisions, and ensure production reliability across the full stack while collaborating with customers to validate business impact.

You will mentor other engineers, design for scalability, and use AI tools to accelerate delivery. Fluent English is essential and experience with retail or pricing is a plus.

Qualifications

• Track record owning a product or service end to end at senior level or above.
• Full‑stack proficiency across backend, frontend and data layers with depth in at least one area.
• Experience mentoring or leading engineers, formally or informally.
• Distributed systems experience; design for failure and scale in production.
• Clear technical communication to both technical and non‑technical stakeholders.
• Comfortable using AI in daily work and driving AI initiatives.
• Fluent in written and spoken English.

Responsibilities

• Own the codebase and technical outcomes for the product end to end, from architecture calls to quality and regression prevention.
• Build, ship and maintain production‑quality code across the full stack.
• Work directly with customers, gathering structured feedback and validating business impact.
• Raise the bar through code review, design feedback and mentorship to engineers around you.
• Work AI‑fluently: leverage AI tools and review AI‑generated code with a critical eye.

Skills

Product ownership

Full-stack

Mentoring

Distributed systems

Technical communication

AI tools

English proficiency

Job description

RELEX Solutions in Sweden is seeking a Lead Software Engineer to join our Merchandising team. You will own a product end to end, drive architecture decisions, and ensure production reliability across the full stack while collaborating with customers to validate business impact.

You will mentor other engineers, design for scalability, and use AI tools to accelerate delivery. Fluent English is essential and experience with retail or pricing is a plus.