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Senior Backend Engineer - Billing & Data Integration

i3D.net • Netherlands
Relocation
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AI Summary

Design and implement scalable backend services in Go to manage billing, product, and sales data flows across the organization. Build robust APIs and ETL pipelines to integrate external systems like HubSpot and NetSuite, ensuring data reliability and auditability. Requires 5+ years of backend engineering experience with Go, SQL, and API development in a hybrid role based in Rotterdam.

Key Highlights
Own end-to-end data migrations, ETL pipelines, and billing logic using Go and SQL.
Build and maintain REST and gRPC APIs for integrating ERP, CRM, and payment systems.
Hybrid position in Rotterdam with relocation support for candidates in the Netherlands or willing to relocate.

Looking to advance your Development & Programming career with relocation support? Explore Development & Programming Jobs with Relocation Packages that include comprehensive packages to help you move and settle in your new role.

Key Responsibilities
Design and implement ETL flows to move billing, contract, and asset data into target systems with full validation and rollback capability.
Analyze legacy databases, define transformation logic, and ensure consistent, idempotent data handling.
Develop backend services and abstraction layers in Go that expose billing logic and enforce business rules.
Define reusable product and offer structures that work consistently across systems and integrations.
Connect ERP, CRM, payment, and inventory platforms with secure, reliable data exchange and reconciliation.
Build REST and gRPC APIs with strong validation, logging, retry logic, and monitoring.
Create tooling, scripts, and runbooks that support repeatable migrations and controlled cutovers.
Implement monitoring, dashboards, and alerting to quickly detect and resolve data or integration issues.
Work closely with Finance, Product, and Business Analysts to refine business rules and validate outputs.
Share knowledge, review code, and help shape the long-term billing architecture.

Discover our full range of relocation jobs with comprehensive support packages to help you relocate and settle in your new location.

Technical Skills Required
Golang SQL REST APIs

Interested in relocating to Netherlands? Check out our comprehensive Relocation Jobs in Netherlands page with detailed relocation packages and benefits.

Benefits & Perks
Relocation services
25 vacation days
Annual bonus
Premium-free pension
Education reimbursement
Lifetime access to Ubisoft’s game library
In-house gym access

Job Description

At i3D.net, we provide world-class global coverage with one of the in the world. Our solutions focus on low latency, zero packet loss, and unmatched scalability, enabling seamless experiences for millions of users worldwide. With dedicated support, bespoke solutions, and cutting-edge technology, we deliver reliable, cost-efficient infrastructure that empowers game developers and businesses to scale effortlessly. Partnering with major names like, and , we are shaping the future of gaming and network technology.
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Job Overview
Posted Date Sep 29, 2026
Employment Type Full-time
Experience Level Not Applicable
Location Netherlands
Category Programming
Company i3D.net
Mentioned Skills
python data structures tdd golang php mariadb etl grpc .net incident response design systems kubernetes docker terraform ansible hubspot sql crm

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