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The Fountain Group

Golang Software Engineer

The Fountain Group
United States · Contract · Mid-Senior
PAY: $60-65/hour W2. Our company offers our consultants a suite of benefits after a qualification period including health, vision, dental, life and disability insurance.

This is a Hybrid role onsite work expected 3 days/week in Englewood, CO

Job Description

  • Senior Integration & Composition Engineer to 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 3rd 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, conditionals
  • Strong proficiency with Go templating, including conditionals, loops, and reusable templates (Helm-style experience is a plus) & payload generation
  • Integration & APIs - Experience integrating REST-based payment APIs and event-driven flows. REST APIs, JSON, HTTP, API gateways, middleware, or integration platforms
  • Experience in programming and scripting languages such as GO/Java/Python
  • Understanding of payment failure scenarios, declines, and reconciliation impacts
  • Experience supporting high-throughput, low-latency transaction systems
  • Knowledge in DevOps such as Kubernetes, Helm, CI/CD Pipeline
  • Familiarity with orchestration frameworks
  • Strong debugging and problem-solving skills

Preferred / Nice-to-Have

  • Prior experience with payment platforms and end-to-end payment lifecycles
  • Knowledge of alternative payment methods, recurring billing, and subscription models
  • Exposure to cloud-native deployments, CI/CD pipelines, and Kubernetes-based platforms

Who We Are:

The Fountain Group is a nationwide staffing firm with over 80 Fortune 100-500 clients. Since 2001, TFG has maintained a consistent standard of excellence, and our work is broadly recognized every year through numerous industry performance awards. Our success is a team effort.

Browse our website below for additional information on our company.

The Fountain Group

3407 W Martin Luther King Jr. Dr. Tampa, FL 33607

“We work in Life Sciences, Clinical, Engineering, IT, and more. Above all, we specialize in people.”

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Key Skills

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kubernetes devops cicd cloud ai
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United States

World’s deepest and highest-paying tech market

Posted
May 12, 2026
Type
Contract
Level
Mid-Senior
Location
Englewood
Company
The Fountain Group

Industries

IT Services IT Consulting

Categories

Other

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