Senior Software Engineer (.NET, React, AWS)

ScaloWarszawa, Wrocławnofluffjobspublished 10/29/2026
Must-have:JavaKotlinGitAWSDockerCloudBackendDevOps
Machine translation — original language: Polish.Show original

Hi! Discover the possibilities of collaborating with Scalo!

At Scalo, we focus on delivering software projects and supporting our partners in growing their business. We create software that enables people to make changes, act faster, and achieve better results. We utilize a wide spectrum of IT services to support our clients in achieving their business goals.

Our areas of activity include, among others:

  • technological consultancy,
  • software development,
  • embedded systems,
  • cloud solutions,
  • data management,
  • dedicated project teams.

What do we offer as part of our collaboration?

  • the opportunity to provide services in diverse projects from the Software, Embedded, Data, and Cloud Services areas,
  • involvement in additional pre-sales and expert initiatives,
  • access to medical care, a sports card, and a cafeteria platform in accordance with the applicable cooperation rules.

Daily tasks

  • development of a platform in the FinTech / Digital Commerce area, including creating new product functionalities and developing existing solutions,
  • designing, implementing, testing, and deploying scalable, secure, and efficient software components using .NET, React, and AWS,
  • development of web applications, API, and solutions based on microservices architecture,
  • analyzing, diagnosing, and resolving bugs and problems occurring in production environments,
  • participating in sprint planning, task estimation, code review, and improving engineering practices,
  • supporting production systems, participating in incident handling, and creating technical documentation,
  • collaborating within product teams responsible for the development of specific platform areas,
  • service delivery mode: remote,
  • project budget: up to 150 PLN/h + VAT, depending on experience and the scope of services provided.

Requirements

Competencies required to perform the services:

  • very good knowledge of .NET and React and experience in creating web applications,
  • practical experience working with AWS and cloud solutions,
  • experience in designing and developing API, microservices, and distributed systems,
  • knowledge of relational and/or non-relational databases (SQL / NoSQL),
  • knowledge of software design principles, testing, design patterns, and programming best practices,
  • experience working in Agile teams and participating in code review,
  • designing comprehensive end-to-end solutions, making technical decisions, mentoring, and supporting team development,
  • very good knowledge of English, minimum C1.

Nice to have:

  • experience in the FinTech, e-commerce, marketplace or SaaS platform area,
  • knowledge of cloud-native architecture and event-driven solutions,
  • participation in architectural discussions and technical solution reviews,
  • experience in mentoring and developing the competencies of other engineers.

Must have: .NET, React, AWS, API, SQL, NoSQL, Agile

Nice to have: SaaS