Solution Architect (FAAS)

Job#: 3055697
Job Description:
Solutions Architect, Fulfillment Integrations
Apex Systems is a global IT services provider, and our staffing practice has an opening in the ecommerce/grocer space for a Solutions Architect specializing specifically with experience in API integrations, excellent internal and external stakeholder management and OMS experience to place at our client a top ecommerce/grocer in North America.
Terms: 6-month possibility with extension
Location: hybrid Toronto
Application Process: It is best to apply via the medium on which you are seeing this posting. If you encounter technical difficulties submitting your resume, please send a Word version of your resume to Johanna at
Our Client is transforming the grocery industry. Our Client has become a lifeline for millions of people, and they're building the team to help push their shopping cart forward.
Our Client is a Flex First team.
There's no one-size fits all approach to how we do our best work. Employees have the flexibility to choose where they do their best work-whether it's from home, an office, or your favorite coffee shop-while staying connected and building community through regular in-person events.
Solutions Architect, Fulfillment Integrations
Location: Canada preferred, with a preference for Ontario / Eastern Time; U.S.-based candidates may also be considered
Work Arrangement: Remote
Position Overview
Apex Systems is seeking an experienced Solutions Architect to support a growing fulfillment integrations team at Instacart. This is a net-new position created to support continued team growth and an expanding pipeline of retailer integration projects.
The Solutions Architect will be responsible for designing and delivering integrations between Instacart's fulfillment network and external grocery retailer fulfillment systems. This is a highly hands-on role that combines solution architecture, API integration, technical documentation, and stakeholder communication.
The ideal candidate has successfully designed, built, and launched internal-to-external API integrations from the ground up and can clearly communicate complex technical concepts to both engineering teams and external client stakeholders.
Key Responsibilities

• Design end-to-end technical solutions integrating Instacart's fulfillment systems with external grocery retailer platforms.
• Architect and build API integrations from scratch, with a strong understanding of system interactions, data flows, and integration architecture.
• Develop system design flows, integration use cases, and technical walkthroughs.
• Create prototypes and visual integration diagrams using tools such as Lucidchart or similar platforms.
• Produce detailed solution design documents and technical documentation to support implementation.
• Develop and present technical solution designs using Google Slides or similar presentation tools.
• Partner directly with retailer technical teams to understand requirements and translate business needs into scalable technical solutions.
• Collaborate closely with internal Product and Engineering teams throughout the design and implementation lifecycle.
• Communicate retailer integration requirements and technical details across internal stakeholders.
• Support integrations through implementation and successful production deployment.

Required Qualifications

• Demonstrated experience designing and building API integrations from scratch, particularly integrations connecting internal platforms with external systems.
• Strong understanding of API architecture, data flows, system design, and how distributed systems communicate.
• Experience taking integrations beyond design and successfully deploying solutions into production.
• Hands-on technical background with a modern programming language such as Python, Ruby, Java, C++, or similar.
• Experience creating technical architecture diagrams, solution design documentation, and system flows.
• Strong written and verbal communication skills.
• Ability to communicate effectively with both highly technical engineering teams and non-technical stakeholders.
• Comfortable working directly with external clients or partners in a technical capacity.
• Proven ability to collaborate across Product, Engineering, and business teams.

Preferred Qualifications

• Experience working with Ruby, as it is a primary language within Instacart's environment.
• Previous experience within fulfillment, third-party fulfillment, logistics, supply chain, or e-commerce environments.
• Experience designing integrations between enterprise platforms and external customer or partner systems.
• Background with organizations operating complex fulfillment or technology ecosystems, such as Amazon, Shopify, Google, or comparable companies.
• Experience supporting large-scale retailer or enterprise integrations.

Ideal Candidate
The successful candidate will be a technically strong architect who still enjoys being hands-on. They should be equally comfortable whiteboarding an integration architecture, digging into API and data-flow requirements, producing a detailed solution design document, and presenting the solution to a retailer or internal engineering team.
Specific programming-language experience is less important than having a demonstrated track record of building, shipping, and supporting real-world API integrations in production.
Interview Process
Candidates should expect a three-stage interview process consisting of:

Technical Interview | 45 minutes

Focused on API integrations, system design, and technical problem-solving.

Behavioral Interview | 45 minutes

Focused on communication, collaboration, and overall competencies.

Hiring Manager Interview | 30 minutes

Final conversation focused on overall fit and culture.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
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Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.
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