Golang Software Engineer

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.

• 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.

• 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 Dev Ops 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.

• 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) and payload generation.
• Experience integrating REST‑based payment APIs and event‑driven flows. Familiarity with 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 Dev Ops such as Kubernetes, Helm, CI/CD pipeline.
• Familiarity with orchestration frameworks.
• Strong debugging and problem‑solving skills.

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