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.Net Developer

Circdata Polska Sp. z o. o.

  • Królewska 57, Krowodrza, Kraków
    Kraków, Lesser Poland
  • offer expired a month ago
  • contract of employment, contract of mandate, B2B contract
  • full-time
  • specialist (Mid / Regular), senior specialist (Senior)
  • More than one vacancy
  • запрошуємо працівників з України
  • Робота для іноземців
    без польської
Запрошуємо працівників з України
Роботодавець відкритий для працевлаштування громадян України

Circdata Polska Sp. z o. o.

Królewska 57



Technologies we use


  • SQL

  • C#

  • TypeScript

  • JavaScript

  • AWS

  • .NET Core

  • AWS Aurora PostgreSQL

  • AWS DynamoDB

  • AWS DocumentDB

  • AWS ElastiCache Redis

  • Docker

Operating system

About the project

Join a rapidly growing collaborative of disruptive technology companies working together to build a brilliant fintech payments business with exceptional people and the best products and services.

Since our inception in 2018, we’ve scaled our portfolio to encompass nearly 40 leading brands and now number in excess of 860 employees globally. Across our SaaS platforms, we’re creating an environment where talented entrepreneurs and their businesses can thrive. As a ClearCourse employee, you’ll benefit from the feel of an innovative, close-knit tech start-up environment where you’ll be able to collaborate with exceptional people and fast track your career.

The partnership launched a new payments business, ClearAccept, to deliver this service, by assembling a highly accomplished team with a track record of successfully launching new payments technology.

Our innovative payments platform is built using a cloud native microservice architecture running on AWS using serverless infrastructure (AWS ECS + Fargate). We store all our code in GIT and use Git flow as our branching strategy. Our CI/CD process is managed by our DevOps team using Infrastructure as Code with Terraform and all our services are covered by automation tests using BDD. We are also in the process of delivering an Android application written in Kotlin to run a payment application on an Ingenico Android payment terminal.

All our services are developed using a minimum of dotnet core 3.1 with C# and we develop API first. We provide a REST API that allows other platforms to integrate with us. We store our data in various database engines managed by AWS (Aurora using PostgresSQL and DynamoDB). We utilise services from the cloud provider where possible. We have a management portal developed using React JS.

As we continue to enhance the platform and accelerate delivery with additional development teams, we require a Developer to work as part of our development team to assist with delivering new product features and capability.

Your responsibilities

  • Collaborating with the Solution Architects, Product Owners, Developers, DevOps and QA Automation Engineers to contribute to the development and delivery of new product features using the following technologies :

  • Languages: C# .net core 3.1+, Typescript, Javascript

  • Databases: AWS Aurora PostgreSQL, AWS DynamoDB, AWS DocumentDB, AWS ElastiCache Redis

  • Cloud Infrastructure: AWS (API Gateway, Fargate, SQS, SNS, KMS, SecretManager, Cognito, Lambda (Python), etc), Localstack, Docker

  • Analysing business requirements, internal designs and non-functional requirements and estimating user stories collaboratively with the team

  • Following industry best practices, coding guidelines and secure development practices.

  • Understanding and maintaining awareness of technology, software design and development methodology trends and contribute to strategy through the suggestions of suitable solutions to meet business / product needs

Our requirements

  • Professional level (5+ years' experience) as a Developer within a modern software environment

  • Strong Web API experience

  • Experience in asynchronous, multi-threaded & parallel programming

  • Strong experience in SQL & NoSQL databases

  • Experience in improving, refactoring and rewriting code

  • Understanding of design patterns

  • Experience using CI/CD build and deployment pipelines.

  • Experience of secure coding practices.

  • Payments Industry experience advantageous

  • Understanding of modern development processes and methodologies.

  • Advocate of development practices including TDD/BDD & DDD.


  • Previous PCI DSS experience would be advantageous

  • Payments Industry experience advantageous

  • Experience with CQRS would be advantageous.

  • Benefits

  • sharing the costs of sports activities

  • private medical care

  • sharing the costs of foreign language classes

  • sharing the costs of professional training & courses

  • remote work opportunities

  • flexible working time

  • fruits

  • no dress code

  • coffee / tea

  • drinks

  • extra social benefits

Recruitment stages

Initial interview with HR representative (phone)


Regular or online interview with management/tech leads


Decision in maximum four weeks


Start work at earliest convenient time

Circdata Polska Sp. z o. o.

Circdata is a part of the ClearCourse group of software companies. Circdata began developing platforms for the events and publishing industries and continues to serve some of the world’s leading event organisers. We are delighted to have picked up industry awards to demonstrate our commitment and innovation in the sector.

As a part of ClearCourse, Circdata are now proud to work in numerous other sectors, providing software and development services for businesses within the portfolio many of which focus on Fintech & Payments provision. https://www.clearcoursellp.com/our-brands/

Circdata has operated a development office in Krakow, Poland since 2005 with the team growing rapidly in recent years to also include technical delivery services. Our developers create software solutions and system specialists deliver them to support the company’s global vision.

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