Senior Technical Designer

Job Description

437: Senior Technical Designer

Job Type: Full-Time

Location: Hybrid - Toronto Office

About the Role

We’re looking for a Senior Technical Designer who will be the technical backbone of our product assortment. This role plays a key part in bringing our designs to life across activewear and supporting categories, ensuring high-quality fit, performance, and construction. You will manage wear testing, collaborate closely with Product Development on materials performance, and drive process improvements to accelerate our product calendar without compromising the creative vision of the brand.

Responsibilities

• Lead technical design for all commodities, with activewear as the primary focus, ensuring fit, function, and quality across every style.
• Turn design concepts into clear, precise tech packs and specifications ready for production.
• Partner with Product Development and Design to assess materials, optimize performance, and push innovation.
• Manage wear testing programs, analyzing fit, durability, and comfort to inform design and material decisions.
• Solve complex construction and fit challenges with creative, practical solutions.
• Establish and maintain size specs, grading rules, and technical design standards across all apparel categories.
• Collaborate with Product Development and suppliers to select materials that balance performance, comfort, and design vision.
• Monitor production samples to ensure timelines, quality, and cost targets are met.
• Drive process improvements that accelerate our product calendar while maintaining excellence.

Success Looks Like

• Tech packs delivered on-time, precise, and production-ready.
• Fit and construction issues minimized, with fewer revisions.
• Wear testing programs executed successfully and insights applied to design and materials.
• Seasonal collections launched on schedule, across all categories.
• Process improvements implemented that accelerate design-to-production timelines.

Qualifications

• 7–10+ years of technical design experience, with deep expertise in activewear and experience across other apparel categories (knit, woven, casual, accessories).
• Mastery of fit, construction, grading, and tech pack creation.
• Hands-on knowledge of performance fabrics, stretch materials, and activewear-specific construction techniques.
• Proven ability to manage multiple projects under tight calendar deadlines.
• Strong knowledge of sizing standards, pattern-making, and grading rules.
• Advanced problem-solving and communication skills—able to influence cross-functional teams.
• Proficiency in tech design software (Adobe Illustrator, PLM, or equivalent).
• A self-starter who thrives in a fast-paced startup environment, takes ownership, and is excited to help shape and evolve how we work as we grow

Why You’ll Love Working Here

• 4-day workweek year-round
• Education advancement fund to support your continued learning and growth
• Competitive benefits, with premiums covered by 437
• Exclusive 437 staff discounts and product perks

To apply please send your resume and/or CV to jennifer@shop437.com. Applications sent through Linkedin will not be accepted.

Applications close January 30th at 11:59pm.