Solutions Architect

Job title: Solutions Architect

Location: Costa Mesa, California (Remote)

Role Overview

The mission is to own the technical solution end-to-end. This involves deciding where trust is enforced in each ecosystem, writing architecture decision records, designing demos, and serving as the technical representative to merchants and partners. This is a 6-month contract role.

Key Responsibilities

• Produce the hook-point inventory and runtime comparison for a partner's blueprint (Messages API vs Agent SDK vs Managed Agents) and author two ADRs for the primary runtime target and integration architecture.

• Design the reference integration, including session-start identity binding, backend-level decisioning, and the gateway verifier for hosted agents, ensuring no changes to merchant prompt bytes or gate code.

• Design loyalty-without-login on UCP and on a protocol-agnostic header/middleware rail.

• Shape the Verifiable Credential POC, defining the issuer, holder wallet, presentation flow, merchant verifier, and its privacy properties.

• Write the threat model for each integration, create merchant integration guides, develop demo runbooks with fallbacks, and run the demos.

• Own deliverables such as ADRs, hook-point inventory, threat models, reference architecture diagrams, integration guides, demo runbooks, and partner technical briefings.

• Required Qualifications

• 8+ years in solutions or software architecture with hands-on code experience, including recent production work on LLM agent systems with tool use.

• Working knowledge of a major AI platform (Messages API tool use, prompt caching, Agent SDK, Managed Agents) and the Model Context Protocol, including authenticated MCP servers.

• Experience with identity and payments architecture: OAuth 2.0 / OIDC, JWT/JWKS, HTTP message signatures, and PCI-adjacent checkout flows. Familiarity with agentic-commerce protocols and KYA concepts is required.

• Experience with threat-modelling and privacy-by-design, with the ability to write ADRs and sequence diagrams for technical and partner audiences.

• Consulting-grade communication skills, with experience leading technical working sessions with external engineering teams.

• Preferred Qualifications

• Verifiable Credentials (W3C VC 2.0, OID4VCI/OID4VP, SD-JWT or BBS+).

• Experience with fraud/risk decisioning platforms.

• Knowledge of CDN/edge architectures (e.g., Cloudflare Workers).

• Prior experience in a forward-deployed or FDE role.

• 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.

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 Health Savings Account on the HDHP plan, a SupportLinc Employee Assistance Program 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. Ever forth 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 a Welcome Packet as well, which an Everforth Apex team member can provide.

• Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

• If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our accommodations department. UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.