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Senior Backend Developer (Golang, Data & Integrations)

i3D.net • Netherlands
Relocation
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Own the design and implementation of backend services and data pipelines for billing, product, and sales data using Go. Build scalable APIs and integrations connecting ERP, CRM, and payment systems while ensuring data accuracy and auditability. Requires 5+ years of backend engineering experience with Go, SQL, and experience in data migrations and ETL pipelines.

Key Highlights
High ownership role at the intersection of engineering, finance, and product
Focus on billing, product, and sales data flows with a strong emphasis on accuracy and consistency
Hybrid position based in Rotterdam, Netherlands, with relocation support provided
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 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
Technical Skills Required
Golang SQL REST APIs
Benefits & Perks
Relocation services
25 vacation days
Annual bonus
Premium-free pension
Lifetime access to Ubisoft’s game library
In-house gym access

Job Description

Senior Backend Developer – (Golang, Data & Integrations). You’ll take ownership of how business and customer data flows across the organization, with a strong focus on billing, product, and sales data. This role sits at the intersection of engineering, finance, and product, where accuracy and consistency directly impact revenue and decision making.

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