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Senior Integration Developer (f/m/x)
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Offer summary

(Summary generated by AI based on the full job description)

The project focuses on critical business integrations across engineering, sales, manufacturing, and analytics. Responsibilities include building and maintaining integrations between enterprise applications and AWS cloud platforms, using REST APIs, event-driven architecture, and automation. Tasks involve designing data transformations, supporting CI/CD, troubleshooting, and collaborating with architects. Required skills include Java, Python, TypeScript, or C# and experience with JSON, XML.

new

Senior Integration Developer (f/m/x)

Company: Sii Sp. z o.o.

from: 6 July 2026
to: 5 August 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote • hybrid • full office
Białystok, Centrum
Białystok, CentrumJózefa Marjańskiego 3View on map

Requirements

Expected technologies

Intergrations
AWS
REST

Optional technologies

SAP S/4HANA
Salesforce API
Teamcenter/PLM
Fusion 360
Autodesk Platform Services
Autodesk Platform Services APS
Autodesk Construction Cloud
Tacton CPQ
Databricks
Terraform
AWS CDK
IaC (Infrastructure as Code)

Our requirements

  • Minimum 6 years of experience developing enterprise integrations
  • Strong hands-on experience with AWS services and cloud-native development
  • Experience developing REST APIs and integrating third-party applications
  • Knowledge of event-driven architectures and asynchronous messaging patterns
  • Proficiency in at least one modern programming language such as Java, Python, TypeScript, or C#
  • Experience working with JSON, XML, and data transformation technologies
  • Familiarity with CI/CD pipelines and software development best practices
  • Advanced level of English

Optional

  • Experience in Manufacturing, Energy, Industrial Equipment, or Engineer-to-Order (ETO) environments

Your responsibilities

  • Developing and maintaining integrations between enterprise systems and cloud platforms
  • Implementing REST API, event-driven, and data integration solutions
  • Building integration services, workflows, and automation using AWS-native technologies
  • Developing connectors and interfaces between engineering, commercial, and operational systems
  • Designing and implementing data transformations, validation, and error-handling mechanisms
  • Supporting CI/CD pipelines, testing strategies, and deployment automation
  • Troubleshooting and resolving integration issues in development and production environments
  • Collaborating with architects and application teams to ensure alignment with integration standards and best practices
  • Contributing to technical documentation and operational runbooks

About the project

We are looking for an experienced Integration Developer to join our integration team and work on business-critical integrations across engineering, sales, manufacturing, and analytics platforms. In this role, you will be responsible for building, testing, deploying, and maintaining integrations between enterprise applications and cloud platforms. You will collaborate closely with the Lead Integration Architect, solution architects, business stakeholders, and application teams to deliver scalable and reliable integration solutions. This position is fully remote, allowing you to work from anywhere in Poland or Finland.

This is how we work on a project

  • Continuous Deployment
  • Continuous Integration
Company

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

Recruitment stages

  • 1.
    Send your CV
  • 2.
    Talk to us about your expectations
  • 3.
    Learn more about our projects and choose the best
  • 4.
    Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

This is how we work

Senior Integration Developer (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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