Golang Developer (Go + AWS + REST APIs+JQ)

Golang Developer (Go + AWS + REST APIs+JQ)

Experience: 11–20 years
Location: Denver/Englewood, CO OR West Chester, PA
Work Model: 3 days onsite

Mandatory Skills

• Golang (Go)
• JQ (strongly preferred; profiles without JQ can be considered, but priority will be given to candidates with this skill)
• JavaScript
• Go Templates
• REST APIs
• JSON

Role Overview

Lead / Senior Integration & Composition Engineer
Design and implement dynamic payload transformations and configuration compositions to integrate multiple systems reliably and efficiently.

This role focuses on payload composition, transformation, and system integration across internal systems and external partners. The engineer will use JQ and Go templates to implement dynamic request/response mappings, configuration-driven workflows, and environment-specific integrations while ensuring scalability, resiliency, and compliance.

Key Responsibilities

• Design and implement integration compositions across APIs, services, and platforms
• Transform, filter, and enrich JSON payloads using JQ
• Build reusable and parameterized templates using Go templating
• Compose requests/responses for downstream systems based on business rules
• Support system-to-system integration, orchestration, and data mapping
• Troubleshoot integration issues related to payload structure and transformations
• Collaborate with platform, API, and DevOps teams to ensure seamless deployments
• Maintain versioned, reusable templates and transformation logic
• Build Go template–driven configurations to support reusable, parameterized integrations across environments (DEV, QA, UAT, PROD)
• Integrate third-party platforms with upstream channels and downstream providers
• Implement standardized error handling and decline mapping to ensure consistent customer and operational experiences
• Partner with Product, Architecture, QA, and Operations teams to ensure payment integrations meet business, regulatory, and performance requirements
• Troubleshoot production issues related to payment composition logic, payload mismatches, or partner integration failures
• Contribute to documentation, best practices, and reusable integration assets

Required Skills & Experience

• Hands-on expertise with JQ for JSON filtering, mapping, aggregation, and conditionals
• Strong proficiency with Go templating, including conditionals, loops, and reusable templates (Helm-style experience is a plus)
• Integration & APIs experience:
• REST-based payment APIs and event-driven flows
• REST APIs, JSON, HTTP, API gateways, middleware, or integration platforms
• Programming/scripting experience with Go / Java / Python
• Understanding of payment failure scenarios, declines, and reconciliation impacts
• Experience supporting high-throughput, low-latency transaction systems
• DevOps knowledge: Kubernetes, Helm, CI/CD pipelines
• Familiarity with orchestration frameworks
• Strong debugging and problem-solving skills