Golang developer (Go AWS REST with Payments- Preferred add on advantage ) 11-20 years

Golang developer (Go AWS REST with Payments- Preferred add on advantage )- 11-20 years

Location Denver/Englewood CO OR West Chester PA
3days Onsite

Rate :: 75-80/hr on c2c for seniors we can go up to 85-90/hr on C2C max

Mandatory skills

• Golang
• JQ (without this skill we can try but try to submit with the skills set if you have any
• JavaScript
• Go Template
• REST API
• JSON

Lead - 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