The Role
Designs, configures, tests, documents, and supports customer integrations throughout SaaS implementation lifecycles. The role uses APIs, webhooks, SFTP, EDI, data transformations, and middleware while troubleshooting connectivity and validation issues. It leads technical discovery, creates integration flows and test plans, collaborates with customers and internal teams, supports post-launch issues, and improves implementation processes through reusable templates, automation, and documentation.
Summary Generated by Built In
The Integration Specialist is responsible for designing, configuring, testing, and supporting customer integrations during the implementation lifecycle. This role serves as the technical bridge between customers, Implementation Managers, Product, and Engineering to ensure seamless connectivity between customer systems and the OneRail platform.
The ideal candidate is highly technical, customer-focused, and enjoys solving integration challenges while working in a fast-paced SaaS environment.
Responsibilities
Customer Integrations
Qualifications
Office location: Kraków, Poland
Work Style: Hybrid (3-4 days from the office/week)
Salary levels: 13 000 – 16 000 PLN/month
The ideal candidate is highly technical, customer-focused, and enjoys solving integration challenges while working in a fast-paced SaaS environment.
Responsibilities
Customer Integrations
- Design, configure, and implement customer integrations using APIs, webhooks, SFTP, EDI, and flat-file exchanges.
- Lead technical discovery sessions to understand customer system architecture and business workflows.
- Configure integration mappings, authentication methods, and data transformations.
- Validate end-to-end data flow prior to production launch.
- Partner with Implementation Managers to develop technical implementation plans.
- Build and execute integration test plans.
- Troubleshoot API connectivity, data validation, and workflow issues.
- Document technical configurations and implementation decisions.
- Create extensive and detailed process and integration flows of customers' existing infrastructure and how it will connect to OneRail.
- Ensure integrations meet security and performance requirements.
- Serve as the technical liaison between Customer Success, Product, Engineering, and customers.
- Escalate product defects and enhancement requests with clear technical documentation.
- Collaborate with Engineering during complex implementations requiring custom development.
- Assist Support with complex post-go-live integration issues when necessary.
- Develop reusable integration templates and documentation.
- Improve implementation processes through automation and standardization.
- Create internal knowledge base articles and customer-facing technical guides.
- Identify opportunities to reduce implementation timelines through repeatable solutions.
Qualifications
- Bachelor's degree in Computer Science, Information Systems, Engineering, or equivalent experience.
- 2–5 years of experience implementing SaaS software or enterprise integrations.
- Experience working with REST APIs.
- Familiarity with JSON, XML, CSV, and data transformation.
- SQL knowledge for data validation.
- Understanding authentication methods such as OAuth and API Keys.
- Experience with Postman or similar API testing tools.
- Familiarity with middleware/iPaaS platforms (MuleSoft, Boomi, etc.).
- Ability to manage multiple implementation projects simultaneously.
- Experience with logistics, transportation, supply chain, or retail technology.
- Understanding webhooks and event-driven architecture.
- Experience working in a customer-facing SaaS environment.
- Strong troubleshooting and analytical skills.
- Advanced proficiency in English & Polish, both written and spoken (B2+).
Office location: Kraków, Poland
Work Style: Hybrid (3-4 days from the office/week)
Salary levels: 13 000 – 16 000 PLN/month
Skills Required
- Bachelor’s degree in Computer Science, Information Systems, Engineering, or equivalent experience
- 2-5 years of experience implementing SaaS software or enterprise integrations
- Experience working with REST APIs
- Familiarity with JSON, XML, CSV, and data transformation
- SQL knowledge for data validation
- Understanding of OAuth and API Keys
- Experience with Postman or similar API testing tools
- Familiarity with middleware or iPaaS platforms such as MuleSoft or Boomi
- Ability to manage multiple implementation projects simultaneously
- Experience with logistics, transportation, supply chain, or retail technology
- Understanding of webhooks and event-driven architecture
- Experience working in a customer-facing SaaS environment
- Strong troubleshooting and analytical skills
- Advanced written and spoken English and Polish proficiency at B2 or higher
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The Company
What We Do
OneRail is a leading omnichannel fulfillment solution that pairs best-in-class software with logistics as a service to provide dependability and speed. Their platform utilizes AI to connect shippers with a courier ecosystem, automating and optimizing the delivery supply chain.
