

Russell Tobin
Agentic Commerce Protocol Engineer
β - Featured Role | Apply direct with Data Freelance Hub
This role is for an "Agentic Commerce Protocol Engineer" on a 12-month contract in Sunnyvale, CA. Key skills include REST APIs, JSON debugging, and JavaScript coding. Requires 4-12 years of experience in complex eCommerce systems, with a focus on technical problem-solving.
π - Country
United States
π± - Currency
$ USD
-
π° - Day rate
920
-
ποΈ - Date
February 28, 2026
π - Duration
More than 6 months
-
ποΈ - Location
On-site
-
π - Contract
Unknown
-
π - Security
Unknown
-
π - Location detailed
Sunnyvale, CA
-
π§ - Skills detailed
#REST API #AI (Artificial Intelligence) #Scala #API (Application Programming Interface) #Project Management #JavaScript #Documentation #JSON (JavaScript Object Notation) #Debugging #REST (Representational State Transfer)
Role description
Customer Solutions Engineer (Level 5)
Sunnyvale, CA (Fully On-Site)
12-Month Contract
About the Role
We are seeking a highly technical Customer Solutions Engineer to support Agentic Commerce integrations powered by Universal Commerce Protocol (UCP). This is an engineering-focused role β not a TAM or support liaison position β centered on enabling complex partner integrations and shaping a rapidly evolving product space. The ideal candidate combines strong API expertise, system design depth, and hands-on debugging skills with the ability to collaborate cross-functionally to drive scalable solutions.
Key Responsibilities
Partner Integration & Architecture
β’ Lead high-touch technical integrations for large and complex partners (e.g., Wayfair, Etsy)
β’ Conduct virtual architecture workshops to ensure UCP aligns with partner system design
β’ Guide developers through UCP.dev specifications and validate integrations within Clientsβ Merchant Center
Technical Debugging & Engineering
β’ Debug REST API and JSON errors using internal logs and troubleshooting tools
β’ Identify, escalate, and help resolve integration-related bugs with internal Engineering teams
β’ Maintain a balanced focus on coding (approx. 50%) and deep technical troubleshooting (approx. 50%)
β’ Support JavaScript-based implementations and JSON configuration management
Product Advocacy & Cross-Functional Execution
β’ Partner with Product and Engineering to advocate for feature improvements and drive bug resolution
β’ Translate partner feedback into structured product insights
β’ Support scalable integration models across enterprise, mid-market, and SMB clients
Project Management & Documentation
β’ Lead implementation reviews and manage complex integration rollouts
β’ Create and maintain internal and external documentation for partner workflows and best practices
β’ Track milestones, risks, and technical dependencies across workstreams
Data & Optimization
β’ Analyze integration performance metrics to identify improvement opportunities
β’ Build dashboards or structured reporting views as needed to support decision-making
Required Qualifications
Technical Expertise
β’ Strong proficiency in REST APIs, API integrations, and JSON debugging
β’ Hands-on coding experience (JavaScript preferred) with ability to review logs and manage structured data
β’ Deep understanding of system design and architecture patterns
β’ Familiarity with Merchant Center
β’ Experience with LLM agents, A2A (Agent-to-Agent) protocols, and MCP (Model Context Protocol)
Professional Experience
β’ 4β5+ years of relevant experience for Level 5 (open to up to 10β12 years for senior candidates)
β’ Experience working with complex eCommerce, transaction, or payment systems preferred
Core Competencies
β’ Strong technical problem-solving and debugging mindset
β’ Proactive self-starter with ownership mentality
β’ Cross-functional collaboration and project management skills
β’ Ability to engage with stakeholders across engineering, product, and business teams
β’ Strong business acumen and ability to translate technical complexity into scalable solutions
Important Notes
β’ This role requires an Engineer with strong technical depth β Technical Account Managers (TAMs) are not a fit.
β’ Candidates with deep Agentic AI/LLM integration experience will be strongly considered, even without extensive retail background.
β’ The role supports partners across the full spectrum β enterprise to SMB β requiring architectural adaptability and solution scalability.
Thanks,
Nandit
Customer Solutions Engineer (Level 5)
Sunnyvale, CA (Fully On-Site)
12-Month Contract
About the Role
We are seeking a highly technical Customer Solutions Engineer to support Agentic Commerce integrations powered by Universal Commerce Protocol (UCP). This is an engineering-focused role β not a TAM or support liaison position β centered on enabling complex partner integrations and shaping a rapidly evolving product space. The ideal candidate combines strong API expertise, system design depth, and hands-on debugging skills with the ability to collaborate cross-functionally to drive scalable solutions.
Key Responsibilities
Partner Integration & Architecture
β’ Lead high-touch technical integrations for large and complex partners (e.g., Wayfair, Etsy)
β’ Conduct virtual architecture workshops to ensure UCP aligns with partner system design
β’ Guide developers through UCP.dev specifications and validate integrations within Clientsβ Merchant Center
Technical Debugging & Engineering
β’ Debug REST API and JSON errors using internal logs and troubleshooting tools
β’ Identify, escalate, and help resolve integration-related bugs with internal Engineering teams
β’ Maintain a balanced focus on coding (approx. 50%) and deep technical troubleshooting (approx. 50%)
β’ Support JavaScript-based implementations and JSON configuration management
Product Advocacy & Cross-Functional Execution
β’ Partner with Product and Engineering to advocate for feature improvements and drive bug resolution
β’ Translate partner feedback into structured product insights
β’ Support scalable integration models across enterprise, mid-market, and SMB clients
Project Management & Documentation
β’ Lead implementation reviews and manage complex integration rollouts
β’ Create and maintain internal and external documentation for partner workflows and best practices
β’ Track milestones, risks, and technical dependencies across workstreams
Data & Optimization
β’ Analyze integration performance metrics to identify improvement opportunities
β’ Build dashboards or structured reporting views as needed to support decision-making
Required Qualifications
Technical Expertise
β’ Strong proficiency in REST APIs, API integrations, and JSON debugging
β’ Hands-on coding experience (JavaScript preferred) with ability to review logs and manage structured data
β’ Deep understanding of system design and architecture patterns
β’ Familiarity with Merchant Center
β’ Experience with LLM agents, A2A (Agent-to-Agent) protocols, and MCP (Model Context Protocol)
Professional Experience
β’ 4β5+ years of relevant experience for Level 5 (open to up to 10β12 years for senior candidates)
β’ Experience working with complex eCommerce, transaction, or payment systems preferred
Core Competencies
β’ Strong technical problem-solving and debugging mindset
β’ Proactive self-starter with ownership mentality
β’ Cross-functional collaboration and project management skills
β’ Ability to engage with stakeholders across engineering, product, and business teams
β’ Strong business acumen and ability to translate technical complexity into scalable solutions
Important Notes
β’ This role requires an Engineer with strong technical depth β Technical Account Managers (TAMs) are not a fit.
β’ Candidates with deep Agentic AI/LLM integration experience will be strongly considered, even without extensive retail background.
β’ The role supports partners across the full spectrum β enterprise to SMB β requiring architectural adaptability and solution scalability.
Thanks,
Nandit






