Senior Shopify Developer

Lake House Group | Shopify & Klaviyo Agency; Montreal; On-site; CAD 70,000 - 110,000; Full time

Job summary

An innovative agency is seeking a Senior Shopify Developer to create high-performing Shopify storefronts and custom apps. You will collaborate with a talented team to turn ideas into scalable solutions, leveraging your expertise in Shopify and problem-solving skills. This role offers the opportunity to tackle real challenges in eCommerce while working in a flexible environment that values results over time-tracking. Join a tight-knit team where your contributions matter and grow into a leadership role as the agency scales.

Qualifications

• 4+ years of experience building custom Shopify themes and apps.
• Strong command of Liquid, Shopify APIs, JavaScript, HTML/CSS, and Git.

Responsibilities

• Build Shopify stores from scratch using best practices.
• Develop custom sections and features to improve UX and performance.

Skills

Liquid

Shopify APIs

JavaScript

HTML/CSS

Git

Shopify Plus

Problem-solving

Cross-functional teamwork

Job description

We help ambitious eCommerce brands grow by combining sharp business strategy with Shopify expertise. We don’t just build stores — we build conversion-focused ecosystems. We’re a small, high-performing team, and we’re looking for someone who shares our obsession with quality and problem-solving.

Our Mission

We help ambitious eCommerce brands grow by combining sharp business strategy with Shopify expertise. We don’t just build stores — we build conversion-focused ecosystems. We’re a small, high-performing team, and we’re looking for someone who shares our obsession with quality and problem-solving.

The Role

We’re looking for a Senior Shopify Developer to join us and own the development of Shopify storefronts and custom apps. You’ll work closely with our other developers, designers, strategists, and clients to turn ideas and business goals into scalable solutions — from a blank theme to a high-performing live store.

You’re not just coding what’s asked — you’re bringing ideas, spotting technical risks, and figuring out how to make things work even when the answer isn’t obvious.

What You’ll Be Responsible For

• Building Shopify stores from scratch using best practices and native Shopify capabilities.
• Developing custom sections and features that elevate UX and improve performance.
• Creating custom Shopify apps to solve complex needs when native features aren’t enough.
• Working with our development team to align on best practices and scalable architecture.
• Developing and maintaining internal apps and tools to streamline our processes and support client work.
• Collaborating with strategy and UX teams to solve business challenges with tech.
• Optimizing speed, SEO, accessibility, and overall performance of Shopify storefronts.
• Staying ahead of Shopify updates and leveraging the latest features (metaobjects, Shopify Functions, Checkout Extensibility, etc.).
• Debugging and troubleshooting efficiently

Must-Have Skills & Experience

• 4+ years of experience building custom Shopify themes and apps.
• Strong command of Liquid, Shopify APIs, JavaScript, HTML/CSS, Git.
• Experience with Shopify Plus features
• Ability to translate business needs into scalable tech solutions.
• Comfort working in cross-functional teams and communicating with non-technical stakeholders.
• You’re solution-oriented: when there’s a blocker, you don’t just say “it’s not possible” — you find another angle.

Bonus Skills

• Experience integrating third-party systems (ERPs, PIMs, WMSs).
• Previous agency or freelance experience working with multiple clients.
• Experience mentoring or managing devs.

Why You’ll Love Working With Us

• Work with a tight-knit team of senior specialists — no fluff, just impact.
• Tackle real challenges for growing eCommerce brands — your work matters.
• Flexible structure: we focus on results, not time-tracking.
• We’re building a team where everyone is heard, and curiosity is valued.
• Opportunity to grow into a leadership role as we scale.

How to Apply

We’re not in a rush — we’re looking for the right person.

If this sounds like you, send us:

• Your portfolio (GitHub or live Shopify stores)
• A quick note about why this sounds like your kind of challenge
• Bonus: tell us about a complex Shopify problem you solved and how.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Marketing Services

Referrals increase your chances of interviewing at Lake House Group | Shopify & Klaviyo Agency by 2x

Sign in to set job alerts for “Senior Developer” roles.

Senior Mechanical Engineer - Hydroelectric Turbine Alternator Generator

Senior Mechanical Engineer - Hydroelectric Turbine Alternator Generator

Senior Data Scientist I - French Language

Senior Mechanical Engineer - Hydroelectric Turbine Alternator Generator

Senior ML Data Scientist _ Content Creation Technology Group

Senior ML Programmer _ Content Creation Technology Group

Senior Data Scientist I - French Language

Senior System Engineer – Satellite Operations Control Centers (SOCC)

Sr. Technical Content Developer, Design & Manufacturing (D&M) Data and Processes

Senior Data Scientist (Operations Research and Optimization)

Senior Database Developer, Product Support Team (Bangkok based, relocation provided)

St-Bruno-de-Montarville, Quebec, Canada 2 days ago

Senior ML Data Scientist _ Content Creation Technology Group

Bilingual Manager - Platform Engineering & DevOps Practices (Montreal or Ottawa)

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.