Senior Integration & Composition Engineer

Job Summary We are seeking a Senior Integration & Composition Engineer with strong expertise in payment integrations, payload transformation, and API orchestration. The role involves designing and implementing scalable integration solutions using JQ, Go templates, REST APIs, and scripting technologies to support high-throughput payment systems and third-party platform integrations. The ideal candidate should have hands-on experience in payment workflows, cloud-native deployments, and DevOps practices. Roles & Responsibilities Design and implement integration workflows across APIs, services, and payment platforms Build dynamic payload transformations using JQ and Go templates Develop reusable, parameterized templates and configuration-driven integrations Integrate upstream channels with downstream payment providers and third-party systems Support

REST API

integrations, orchestration, and data mapping Handle payment decline mapping, error handling, and reconciliation scenarios Troubleshoot payload mismatches, transformation failures, and production integration issues Collaborate with API, DevOps, QA, and architecture teams for seamless deployments Maintain reusable integration assets, templates, and documentation Support cloud-native deployments and CI/CD-based integration delivery Required Skills & Experience 7+ years of experience with JQ and Go templating 7+ years of experience in OOPS concepts and Python/Go development 5+ years of experience in scripting, AWS, REST APIs, and payment integrations Strong expertise in JSON payload transformation, mapping, and composition Experience with REST APIs, middleware, API gateways, and event-driven integrations Knowledge of payment workflows, declines, reconciliation, and transaction processing Experience supporting high-throughput, low-latency systems Hands-on experience with Kubernetes, Helm, and CI/CD pipelines Strong debugging, troubleshooting, and problem-solving skills Experience with cloud-native and scalable integration architectures