Senior Sales Engineer (Shopify Expert)

About Avex

Avex is a rapidly growing eCommerce agency that partners with merchants in the fashion, lifestyle and premium products space. From high-growth DTC brands to enterprise, we have partnered with companies such as: Khaite, Quip, KITH, Stoney Clover Lane, Love Shack Fancy, LVMH, Arizona Beverages, TAG Heuer, Hugo Boss, Enjoy Life, Mondelez, O'Neill, Serta Simmons Bedding and many others. We design, build and optimize eCommerce experiences on Shopify Plus for global brands.

Our Values

BUILD our clients’ businesses, INSPIRE our employees to grow, CHALLENGE the norm, and DELIVER on our commitments.

We design and build digital commerce experiences that connect brands to people through creative, technology and culture. We believe that our work should not only produce amazing results for our clients but should also be fun and rewarding for our team. Avex believes in a strong work-life balance, not just churning out projects. The happier our team is, the more enjoyable the experience is, and the better the results will be for our clients.

We ensure that our team members and partners possess these traits. We feel that it is important to prioritize these core values over everything else. This allows us to deliver results for our clients, as well as a safe and fun work environment.

• Teamwork
• Passion
• Respect
• Talent
• Accountability
• Resourcefulness
• Radical Transparency
• Visionary

Role & Responsibilities

The Senior Sales Engineer is a strategic, client-facing technical expert responsible for driving the pre-sales process and designing high-performance, scalable Shopify solutions tailored to client needs. This role is critical in aligning Avex’s technical vision with business development efforts to secure new partnerships and fuel agency growth.

Working alongside Sales, Partnerships, and Solutions teams, the Senior Sales Engineer leads technical discovery conversations, evaluates requirements, and translates business goals into feasible Shopify architectures. They develop and present tailored solutions, create technical documentation and demo environments, and contribute to proposals that clearly articulate how Avex will deliver value.

While their core responsibilities are focused on pre-sales, the Senior Sales Engineer ensures a seamless transition into delivery by onboarding the assigned project team—sharing technical notes, architectural plans, and context to support successful execution. They do not participate in hands-on delivery but ensure delivery teams are well-prepared and aligned from day one.

Beyond deal support, this role champions scalable solution patterns, fosters internal knowledge-sharing, and informs Avex’s service evolution with insights from the field. The Senior Sales Engineer bridges the gap between client needs and Avex’s technical capabilities—ensuring every solution sold is not only sound, but also strategically aligned for long-term success.

Key Responsibilities

• Lead technical discovery sessions with prospects to understand business goals, functional requirements, and platform constraints.
• Design scalable, high-performance Shopify solutions tailored to client needs, budgets, and growth plans.
• Partner with Sales and Strategy teams to craft winning proposals, pitch decks, and technical solution documentation.
• Create and deliver demos, proof-of-concepts, and technical presentations that clearly articulate Avex’s Shopify expertise and value proposition.
• Assess technical feasibility of proposed solutions and proactively identify risks or limitations during pre-sales.
• Serve as a trusted technical advisor in client conversations, answering questions and clarifying solution details during the sales process.
• Document architectural plans, integration details, and platform recommendations to ensure clarity across teams.
• Onboard internal delivery team post-sale by transferring key technical context, notes, and proposed architecture.
• Collaborate with internal stakeholders to refine solution frameworks, pricing models, and services packaging.
• Provide market feedback and technical insights to influence Avex’s service offerings, tooling, and pre-sales processes.
• Stay current with Shopify platform updates, ecosystem tools, and emerging technologies to maintain Avex’s competitive edge.

We have expectations and so should you. We want to make sure we’re aligned on what is expected from both sides.

• Proven expertise in e-commerce platforms, with a minimum 3 years experience working on Shopify, including understanding Liquid templating, customizations, and API integrations.
• Understanding of frontend and backend technologies such as HTML, CSS, JavaScript frameworks.
• Demonstrated experience in leading large-scale replatforming initiatives, particularly from enterprise platforms like Magento and Salesforce to Shopify.
• Strong understanding of data structure, mapping, and API integration challenges during platform migrations, with a focus on minimizing data loss and maintaining workflow integrity.
• Excellent communication skills to interact with clients, team members, and stakeholders.
• Ability to think strategically, aligning technical goals with business objectives and growth opportunities.
• You hold yourself and others accountable.
• You’re competitive and love winning as a team.
• You have high standards and expect the same from your team.
• You understand we're a growing company and everyone wears multiple hats.
• You understand that there will be “easy weeks” but also “busy weeks” where we need to help each other out.
• You can work autonomously without being micromanaged.

Working at Avex

• We offer unlimited PTO
• We offer remote or flexible working
• We value work-life balance
• We reward people based on their accomplishments and contributions
• We strive to make a difference in our clients' businesses
• We take burnout seriously and do our best to monitor it
• We treat people like adults, as long as they treat others with the same respect
• We have extremely high standards
• We're highly competitive in the industry and we love winning as a team
• We prioritize people over profits
• We donate a percentage of revenue to No Kid Hungry

Compensation and Benefits

We’re an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

• 401K with company matching
• Remote (Optional / Hybrid)
• Untracked PTO and sick days
• Paid holidays
• Monthly WiFi & Wellness stipends
• Yearly Training & Office Equipment stipends
• Aetna Healthcare, Dental, Vision