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Solution Architect – OSS/BSS Transformation Projects
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Offer summary

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

The project focuses on OSS/BSS systems in telecommunications with emphasis on transformation and development of applications. Key technologies include REST APIs, SOAP, messaging queues, event-driven architecture. Responsibilities involve designing scalable and secure enterprise solution architecture, supporting analysis and development teams, and collaborating with Enterprise Architects and Product Owners. Requires experience in defining application architecture and system integration.

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Solution Architect – OSS/BSS Transformation Projects

Company: SQUARE ONE RESOURCES sp. z o.o.

from: 19 August 2026
to: 18 September 2026
150 - 170 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:senior • expert
working mode:remote
location:Warszawa, Masovian
Warszawa, Masovian

Requirements

Expected technologies

REST APIs
SoapUI
BSS
OSS
messaging queues
Solution Architect

Our requirements

  • 5+ years of professional experience as a Solution Architect.
  • Proven experience designing enterprise-class applications
  • Strong experience with system integration using technologies such as: REST APIs, SOAP, messaging queues, event-driven architecture.
  • Ability to design and document both logical and physical solution architectures.
  • Good understanding of application security principles and practices.
  • Proven experience conducting technical analyses and supporting software development teams.
  • Strong understanding of enterprise application architecture and integration patterns.
  • Ability to collaborate effectively with technical and business stakeholders.

Optional

  • Previous experience in the telecommunications industry.
  • Knowledge of OSS/BSS systems and architectures.
  • Experience delivering business or technology transformation projects.
  • Experience working in complex enterprise environments with multiple technology and business stakeholders.

Your responsibilities

  • Define solution architecture for enterprise applications and transformation initiatives.
  • Design logical and physical architectures tailored to business and technical requirements.
  • Provide technical guidance and support to development and business analysis teams.
  • Identify and assess technical risks and dependencies.
  • Recommend optimal technology solutions and architectural approaches.
  • Support technical analysis and decision-making throughout the project lifecycle.
  • Cooperate closely with Enterprise Architects, Product Owners and other technology stakeholders.
  • Support the delivery of transformation and development projects within the OSS/BSS application landscape.
  • Ensure that proposed solutions meet relevant application security and integration standards.

About the project

Our client is a leading telecommunications infrastructure operator in Poland.
As part of the planned reinforcement of project teams for the period September–December 2026, we are looking for an experienced Solution Architect to support the delivery of transformation and development projects in the area of OSS/BSS applications.
The role will involve designing scalable and secure enterprise solutions, supporting development and analysis teams, and working closely with Enterprise Architects and Product Owners to ensure the delivery of optimal technical solutions.

This is how we organize our work

This is how we work

at the client's site
Company

SQUARE ONE RESOURCES sp. z o.o.

At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations.

This is how we work

Solution Architect – OSS/BSS Transformation Projects
150–170 zł / hr. (B2B)
I apply to:
SQUARE ONE RESOURCES sp. z o.o.
Warszawa, Masovian

Need more information?

  • Make sure the body of the offer doesn’t already include what you’re looking for.
  • Ask a question if you need more information you’re interested in.
  • We’ll forward your question to the employer and aim to provide a response within 3 business days.

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