# Senior Application Developer at Teifi Digital
> Posted: 2026-10-28 | Status: Active | Source: StoreJobs.dev

## Role Metadata
- **Employment Type:** Full-Time
- **Workplace:** Hybrid — Vancouver, Canada
- **Experience Level:** Senior
- **Primary Platform:** #shopify
- **Salary Range:** Undisclosed
- **Required Stack:** shopify, TypeScript, Node.js, PostgreSQL, Redis, GraphQL, REST APIs, React, Shopify Polaris, Remix, Liquid, GitHub, Linear, Notion, ERP, PIM, OMS, Shopify API, Shopify Plus, Microservices, Monorepo, Agile

## Job Description
Role Overview
We are seeking a Senior Application Developer focused on building high-performing e-commerce solutions with expertise in web and Shopify app development. In this role, you will build custom microservices, private apps, and integrations for our clients, as well as contribute to the development of Teifi Labs products. You will be responsible for back-end development using TypeScript, Node.js, PostgreSQL, Redis, GraphQL, and REST APIs, while also contributing to front-end work using React where necessary. A strong track record in Shopify Plus customizations and third-party app integrations. Skilled at delivering scalable, responsive experiences optimized for both performance and usability.

Key Responsibilities
Build and maintain backend integrations, microservices, and private apps
Work with TypeScript, Node.js, PostgreSQL, GraphQL, and REST APIs
Integrate third-party platforms like ERPs, WMS, and POS systems
Contribute to a modern monorepo setup and internal tooling
Support frontend (where necessary) with React, Shopify Polaris, and Remix
Design, build, and maintain integrations across APIs, webhooks, and middleware to connect systems and streamline data flow
Manage and configure backend integrations with ERP and PIM systems, ensuring reliable performance and scalability
Lead data migration projects end-to-end, including data mapping, transformation, and validation to ensure accuracy and integrity
Architect and deliver end-to-end technical solutions, translating business requirements into scalable, well-structured designs
Drive project delivery using Agile and sprint-based methodologies, keeping stakeholders aligned and work on track
Collaborate with global teams using GitHub, Linear, and Notion
Participate in sprints, scoping, code reviews, and team discussions
Troubleshoot and resolve technical issues, particularly in app integrations and customizations for Shopify Plus clients
Contribute to the continuous improvement of our development processes and app infrastructure
Maintain comprehensive documentation, including technical specifications and Standard Operating Procedures (SOPs)
Provide on-call support as required

Qualifications
4–6 years of experience as a backend or full stack developer
A degree in Computer Science or a closely related field
Strong in TypeScript and Node.js
Solid knowledge of PostgreSQL, REST APIs, GraphQL
Experience working with scalable integrations and backend architecture
In-depth knowledge of Shopify's architecture, APIs, and app ecosystem
Experience integrating third-party services such as ERPs, WMS, and POS systems with Shopify
Hands-on Shopify experience (themes, apps, Liquid, Shopify APIs) strongly preferred
Strong problem-solving skills and attention to detail in building scalable, secure applications
Ability to work both independently and as part of a collaborative team in a remote/hybrid environment
Proactive mindset and a collaborative working style
Comfortable working in a fast-paced, remote-friendly engineering culture

## How to Apply
To view the original listing, see applicant requirements, or apply directly, visit:
https://storejobs.dev/jobs/sf-3091-senior-application-developer?utm_source=ai_assistant