Customer Integration Specialist @ OneRail Poland Sp. z o.o.

OneRail Poland Sp. z o.o.

Kraków

Hybrid

PLN 100,000 - 130,000

Full time

14 days+

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Benefits offered by this job

Sport subscription

Training budget

Private healthcare

International projects

Small teams

Free coffee

Bike parking

Playroom

Free snacks

Free beverages

Free lunch

Free parking

In-house trainings

In-house hack days

Modern office

Startup atmosphere

No dress code

Job summary

OneRail Poland is seeking an Integration Specialist to design, configure, test, and support customer integrations throughout the implementation lifecycle. You will serve as the technical bridge between customers, Implementation Managers, Product, and Engineering to ensure seamless connectivity with the OneRail platform.

The ideal candidate is highly technical, customer-focused, and enjoys solving integration challenges in a fast-paced SaaS environment.

Qualifications

Bachelor's degree or equivalent experience.
2–5 years of experience implementing SaaS software or enterprise integrations.
Experience with REST APIs.
Familiarity with JSON, XML, CSV, and data transformation.
SQL for data validation.
Understanding OAuth and API Keys.
Experience with API testing tools (Postman or similar).
Familiarity with middleware/iPaaS platforms (MuleSoft, Boomi).
Ability to manage multiple integration projects simultaneously.
Experience in logistics/transport/supply chain or retail tech.
Understanding webhooks and event-driven architecture.
Experience in customer-facing SaaS environment.
Strong troubleshooting and analytical skills.
Advanced proficiency in English & Polish (B2+).

Responsibilities

The Integration Specialist designs, configures, tests, and supports customer integrations during the implementation lifecycle.
Acts as the technical bridge between customers, Implementation Managers, Product, and Engineering to ensure seamless connectivity to the OneRail platform.
Ideal candidates are highly technical, customer-focused, and enjoy solving integration challenges in a fast-paced SaaS environment.

Skills

REST API

JSON

XML

CSV

SQL

OAuth/API Keys

Postman

iPaaS/Middleware

Project management

Customer-facing SaaS

Troubleshooting

Analytical skills

B2+ English & Polish

Education

Bachelor's degree in Computer Science / Information Systems / Engineering

Tools

Postman

MuleSoft

Boomi

Job description

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+).

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.

Why Join OneRail Poland?

Innovation at its Core: Work on industry-leading technology that is shaping the future of logistics.
Career Growth: Opportunities for professional development and career advancement.
Collaborative Culture: Join a team of talented engineers and industry experts.
Exciting Challenges: Solve complex problems and contribute to impactful projects.
Flexibility: We offer a flexible hybrid work style and flexible employment types to suit your needs, ensuring a work-life balance that works for you.
Competitive Compensation: Attractive salary and benefits package.

Take the next step in your career and become a part of OneRail's exciting journey!

[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.]

Requirements: REST API, API testing, SQL, JSON, Postman, SaaS, Enterprise software

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