Oner Active
Retail Systems Administrator
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Role: Retail Systems Administrator
Reports into: Systems Manager
Contract Type: Full Time, working 7.5 hours per day, 5 days per week
Location: Hybrid, working 3 days a week in our offices based in Old Street, London
About Us
Nothing is clearer to us than the belief that every woman should include strength training in her life to enhance both physical and mental well-being. It’s about building strong bodies and even stronger minds, asserting their right to take up space in the gym, and allowing the spotlight to shine bright on their progress.
To us, strength training represents a determined, goal-oriented mindset and an unwavering work ethic. We don’t wait for success; we create it through hard work and determination. When faced with challenges, we don’t back down; instead, we break through barriers, recognising that true progress lies on the other side.
These are the pillars that form the foundation of Oner Active. We consistently challenge ourselves to create innovative and impactful products, so that you can perform better. With our range of products and innovative approach, we provide a wide variety of colours to ensure that all skin tones genuinely radiate in Oner.
Our Purpose and Mission
We are on a mission to unite and empower women to be the strongest version of themselves through strength training. We want to inspire women to take centre stage in the gym by promoting strength training, which underpins all movement and sport, as a healthy foundation in life.
Our Benefits
- 25 days annual leave + bank holidays, plus the freedom to work from anywhere for up to 4 weeks a year
- 5% employer pension match through our salary sacrifice scheme
- Generous Oner Active discount and regular office sample sales
- Free Evolve You subscription, on us
- Private Healthcare with Vitality, including optical and dental cover
- Monthly wellness allowance and team workout classes to keep you moving
- Annual discretionary bonus scheme
- Family-friendly maternity & paternity policies that actually support you
- Start-up culture - the chance to learn and make a real impact, backed by hands-on management and career mentoring
- Great employee events like our Summer party, Christmas party and team away days
- Healthy office snacks, fresh fruit and a coffee and matcha bar (plus a chocolate cupboard for a sweet treat for the balance)
- Dog-friendly office
About You
We're looking for someone who has owned and managed the operational systems that a fast-growing fashion, activewear or direct-to-consumer (DTC) business depends on.
You will have experience supporting the technology ecosystem that sits behind a retail business, including the ERP (finance and inventory), e-commerce platform, in-store POS system and the warehouse and logistics integrations that connect them.
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Ideally, you'll have gained this experience within a high-growth fashion, activewear or lifestyle brand where speed, agility and continuous improvement are essential.
This is not a general IT support or infrastructure role. We're not looking for experience focused on desktop support, cybersecurity, networking, hardware or shop-floor retail operations. Instead, we're looking for someone who understands how operational systems work together to enable the business to trade successfully.
The strongest candidates will demonstrate:
- Experience with systems such as NetSuite ERP, Shopify and a retail POS platform.
- Experience supporting 3PL, WMS and systems integrations.
- Hands-on involvement in system implementations, testing (SIT/UAT) and go-live activities.
- The ability to translate business requirements into technical solutions across multiple stakeholders.
- A continuous improvement mindset with a passion for automation and operational excellence.
Key Responsibilities
- Own the day-to-day health and performance of our operational systems, including NetSuite ERP, Shopify, Teamwork Commerce, eCom360, 3PL/WMS integrations and Narvar.
- Gather business requirements and translate operational needs into technical solutions.
- Define business processes and map data flows across ERP, e-commerce, warehouse and retail systems.
- Write technical specifications and manage delivery between internal stakeholders and external development partners.
- Own the automation roadmap, identifying opportunities to eliminate manual processes through workflow automation.
- Build, maintain and monitor automations using modern integration and automation tools.
- Design and maintain a structured, AI-ready knowledge base, ensuring documentation is accurate, accessible and scalable.
- Lead System Integration Testing (SIT) and User Acceptance Testing (UAT) for new functionality and system enhancements.
- Coordinate cutover planning and support successful go-live activities.
- Provide post-implementation support, monitoring system performance and proactively resolving integration issues.
- Configure systems natively where appropriate, including Saved Searches, workflows, dashboards, custom fields and UI enhancements within NetSuite and related platforms.
- Deliver training and documentation to ensure operational teams can confidently use business systems.
What You'll Be Responsible For
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- You will become the internal subject matter expert for the systems that support Oner Active's operations.
- People across Finance, Operations, Merchandising, Retail and Digital will come to you for guidance on system functionality, process improvements and troubleshooting.
- Act as the key liaison between business teams and external technology partners.
- Own automation as a core capability, removing repetitive manual tasks wherever possible.
- Use AI tools to accelerate documentation, reporting, technical specifications, testing and solution design.
- Build and maintain high-quality operational documentation that supports both employees and future AI agents.
- Provide reporting and analytical support to Finance and Merchandising through accurate dashboards, saved searches and operational insights.
You need to have
- 3-5 years' experience in a Systems, Operations Technology or Internal Tools role within a fast-growing fashion, activewear, beauty, lifestyle or DTC e-commerce business.
- Strong experience with NetSuite ERP, Shopify and retail POS platforms.
- Experience supporting 3PL and WMS integrations.
- Experience working with middleware or systems integration platforms.
- Hands-on experience with automation tools such as n8n, Make, Zapier or similar.
- Experience delivering system implementations, upgrades and enhancements.
- Strong business analysis and process mapping skills.
- Experience producing technical specifications and managing delivery with third-party partners.
- Experience leading SIT, UAT and go-live activities.
- Excellent stakeholder management and communication skills.
- Experience within premium fashion, activewear or lifestyle brands.
- Experience creating AI-ready documentation in Notion, Loom or similar platforms.
- Strong understanding of omnichannel retail operations.
- Demonstrable use of AI tools to improve productivity and operational delivery.
- Experience configuring NetSuite, including Saved Searches, dashboards, workflows and custom fields.
Equality, Diversity, and Inclusion
At Oner Active it’s about embracing diversity and empowering every individual to reach their full potential. We are committed to creating an environment where everyone feels valued, supported, and able to thrive.
We welcome applications from all backgrounds and are dedicated to ensuring that everyone has equal access to opportunities during the recruitment process. If you require any reasonable adjustments or additional support, we encourage you to reach out to our Recruitment team, we’re here to support you every step of the way.
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