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Senior Fullstack Engineer

Square One Resources · Remote, Warsaw · Posted 32d ago

remoteContractsenior5-8 yrs150-180 PLN / hour (b2b)🇵🇱 PolandRequires Polish, English
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Available in 2 locations

Remote, Warsaw · onsite Apply → Warsaw, Remote · onsite Apply →

About the role

Join a large-scale technology modernization program in the financial services sector as a Senior Fullstack Engineer. You will design, develop, and maintain modern enterprise applications, focusing on both backend and frontend development. The role involves building scalable APIs, contributing to cloud-native applications, and participating in the transformation of legacy systems.

Full job description (as posted) ↓

Large-scale technology modernization program within the financial services sector. Program focuses on transforming enterprise systems through modern application development, cloud transformation, legacy and mainframe modernization, data migration, modern software architecture, and Generative AI.
Requirements:
Full Stack software development in enterprise environments. Modern backend and frontend application development. Designing and developing REST APIs and integrations. Cloud and cloud-native technologies. Microservices and distributed systems. Enterprise-scale applications and high-availability systems. Legacy application modernization or technology transformation projects. CI/CD and modern software development practices. Working effectively with cross-functional and international teams. Optional Previous experience in banking or financial services. Experience with legacy or mainframe modernization. Experience integrating modern applications with legacy systems. Knowledge of cloud migration and application transformation. Experience with Generative AI / LLM integrations, Azure OpenAI, AWS Bedrock, RAG or similar technologies. Experience working on large-scale international transformation programs.
Must have: Fullstack
Daily tasks: - Design, develop, and maintain modern enterprise applications.
– Work across both backend and frontend development.
– Build scalable and secure APIs and system integrations.
– Develop cloud-native applications and services.
– Contribute to the modernization of legacy applications and enterprise systems.
– Participate in the transformation of existing systems into modern architectures, including microservices and event-driven solutions.
– Collaborate with Solution Architects, Technical Leads, DevOps, Data, Cloud, and Mainframe teams.
– Support application and data migration initiatives.
– Ensure high standards of code quality, performance, security, and maintainability.
– Participate in technical discussions and contribute to architectural decisions.
– Work in an Agile environment with distributed engineering teams.

Read the full posting on nofluffjobs (posting in Polish) →

FAQ

Is the Senior Fullstack Engineer role at Square One Resources remote?+

This Senior Fullstack Engineer position is listed as remote (Remote, Warsaw).

What is the salary for the Senior Fullstack Engineer role at Square One Resources?+

The listing states 150-180 PLN / hour (b2b).

What seniority level is this Senior Fullstack Engineer role?+

This is a senior level position.

What languages does the Senior Fullstack Engineer role require?+

The posting requires Polish and English.

How do I apply for the Senior Fullstack Engineer role at Square One Resources?+

Use the "Apply on nofluffjobs" button to open the original posting on nofluffjobs, where you can submit your application directly to Square One Resources.