Largeton Group · 8 hours ago
Senior Integration & Composition Engineer
Denver Metropolitan Area
Full-time
Onsite
Senior Level
$60/hr - $65/hrLargeton Group is seeking a Senior Integration & Composition Engineer to design and implement dynamic payload transformations and configuration compositions. The role focuses on integrating multiple systems reliably and efficiently, ensuring scalability, resiliency, and compliance.
ConsultingInformation TechnologyTraining
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
Qualification
Required
JQ, Go Template, REST API, JSON
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
Python, GO Language, Java, CI/CD
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
Company
Largeton Group
Largeton Group is a delivery engine for large staffing firms.
Founded in 2014
51-200 employees
H1B Sponsorship
Largeton Group has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (5)
2024 (10)
2023 (8)
2022 (6)
2021 (7)
2020 (11)
Funding
Current Stage
Growth StageLeadership Team
Ashutosh Tripathi
Managing Partner
Saurabh Prakash
Client Partnership Manager.
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