May 27, 2026

Full Stack Engineer

Senior • Hybrid

Warsaw, Poland

WHO WE ARE

Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! 

At its foundation, SimCorp is guided by our values — caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. 

 

WHY THIS ROLE IS IMPORTANT FOR US 

You will join a new team in Platform Product Development. As a Lead Software Engineer, You will leverage your expertise in .NET technologies, Angular frontend development, and the Azure cloud ecosystem to deliver secure, scalable, and high-performing solutions. This role requires a strong mix of hands-on engineering, and architectural thinking to ensure both immediate delivery and long-term sustainability.

You will be part of a scrum team working closely with Product Owner and business stakeholders.

Besides your team you will work with other colleagues across our unit

 

WHAT YOU WILL BE RESPONSIBLE FOR:

  • You will apply your talents to all stages of the development lifecycle, including review of user stories, development, design, code reviews and writing automated tests.

  • Work closely with product owner and other stakeholders to understand project requirements and provide technical insights.

  • Setting up engineering excellence inside your team and continuously improving it

  • Development of new functionalities.

  • Taking care of quality assurance, refactor existing code, research tools and frameworks to enable future innovations.

  • Work as part of your scrum team to reach the definition of done within each sprint.

 

WHAT WE VALUE  

  • Over 4 years of hands-on experience with JavaScript, TypeScript, HTML, CSS/SASS, Angular framework and Node.js

  • Over 2 years of hands-on experience utilizing .NET technologies, with a focus on C# and Microsoft .Net.

  • Familiarity with front-end build tools (Webpack, NX, Angular CLI)

  • Experience building responsive, accessible, and mobile-friendly web applications.

  • Solid understanding of REST APIs, state management (NGRX), and browser performance tuning

  • Knowledge of design patterns and principals (OOP, SOLID) and proven ability to use them in practice

  • Knowledge of cloud services, infrastructure, pipelines, and architecture — preferably on Azure

  • Practical knowledge of software development practices (like TDD, BDD)

  • Hands-on experience doing peer reviews and utilizing code quality tools like SonarQube

  • Experience in CI/CD and understanding of DevOps principles

  • Strong fundamentals in software testing tools, techniques and methodologies.

  • Strong problem-solving skills and the ability to make sound technical decisions.

BENEFITS  

  • Flexible working hours and hybrid model - 2 days in the office, 3 days remote 

  • Modern office (next to Wilanowska metro station) with quiet zones and ergonomic workstations 

  • Base salary with annual bonus structure  

  • Holiday allowance upon a 2-week vacation 

  • Occasional remote work across Poland and international options available (up to 24 days domestic, 20 days international per year - subject to internal policy) 

  • Employer-paid Medicover Platinum healthcare package (employee-paid family upgrade available) 

  • Multisport card with 75% employer contribution 

  • Unum group life insurance (employee-paid upgrade available) 

  • Medicover travel insurance for private trips and global business travel insurance 

  • Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year) 

  • Copyrights program for certain roles  

  • Possibility to develop your career in an international environment 

  • Professional training and courses provided by SimCorp 

  • Polish language classes for foreign employees; German and English classes based on business needs 

  • Integration events, volunteering initiatives and employee-led clubs 

 

Compensation ranges are being disclosed at the initial stage of candidate engagement. 

NEXT STEPS  

Please send us your application in English via our career site as soon as possible, we process incoming applications continually. Please note that only applications sent through our system will be processed. At SimCorp, we recognize that bias can unintentionally occur in the recruitment process. To uphold fairness and equal opportunities for all applicants, we kindly ask you to exclude personal data such as photos, age, or any non-professional information from your application. Thank you for aiding us in our endeavor to mitigate biases in our recruitment process. 

If you are interested in being a part of SimCorp but are not sure this role is suitable, submit your CV anyway. SimCorp is on a positive growth journey, and our Talent Acquisition Team is ready to assist you discover the right role for you. The approximate time to consider your CV is three weeks.  

We are focused on continually improving our talent acquisition process and making everyone’s experience positive and valuable. Therefore, during the process we will ask you to provide your feedback, which is highly appreciated. 

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If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values — caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what we’re saying, keep reading! WHY THIS ROLE IS IMPORTANT TO US As our new Software Engineer, you will join SimCorp’s Product Division, a full-scale agile organization. Here, you will become part of a cross functional and cross located agile team which is responsible for delivering functionality within a specific module of our product SimCorp Dimension. You will apply your talents to all stages of the development lifecycle, including creation and review of user stories, development, design, testing, coding, code reviews, writing automated tests, and support. You will be using multiple technologies. WHAT YOU WILL BE RESPONSIBLE FOR Developing core functionality to support the business modules, including modelling financial instruments business processes by using a collection of DSLs (domain-specific languages) Working with product management to refine new features Maintaining the existing code base Be part of reviewing product code and formulate test scenarios Working as part of your agile team to reach the definition of done each sprint Constantly learning and developing yourself, the team and our product Your qualifications A solid understanding of one or more functional programming languages (OCaml, Standard ML, F#, Scala, Haskell) and experience of using them for large and complex solutions C# skills, good insight to the .NET framework and object-oriented software design and programming is an advantage You are a collaborative professional who actively seeks partnership to find optimal solutions You are interested and able to work with complex architecture, both front- and back-end You hold a M.Sc. or Ph.D. in Computer Science, Mathematics, Finance or a similar field What we value that you have motivation to work within the financial domain are willing to acquire other technical and programming skills have the aspiration to develop and maintain automated tests, underlying frameworks, and their integration into CI/CD pipelines have collaboration and communication skills and fluency in English (written and spoken) Consistently learn through experimentation when addressing the latest problems, leveraging lessons learned from both accomplishments and setbacks can introduce new ways of looking at problems and that you can take creative ideas and put them into practice think about the entire system and can identify and implement ways to continuously improve BENEFITS Flexible working hours and hybrid model - 2 days in the office, 3 days remote Modern office (next to Wilanowska metro station) with quiet zones and ergonomic workstations Base salary with annual bonus structure Holiday allowance upon a 2-week vacation Occasional remote work across Poland and international options available (up to 24 days domestic, 20 days international per year - subject to internal policy) Employer-paid Medicover Platinum healthcare package (employee-paid family upgrade available) Multisport card with 75% employer contribution Unum group life insurance (employee-paid upgrade available) Medicover travel insurance for private trips and global business travel insurance Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year) Copyrights program for certain roles Possibility to develop your career in an international environment Professional training and courses provided by SimCorp Polish language classes for foreign employees; German and English classes based on business needs Integration events, volunteering initiatives and employee-led clubs Compensation ranges are being disclosed at the initial stage of candidate engagement. NEXT STEPS Please send us your application in English via our career site as soon as possible, we process incoming applications continually . Please note that only applications sent through our system will be processed. At SimCorp, we recognize that bias can unintentionally occur in the recruitment process. To uphold fairness and equal opportunities for all applicants, we kindly ask you to exclude personal data such as photo, age, or any non-professional information from your application. Thank you for aiding us in our endeavor to mitigate biases in our recruitment process. If you are interested in being a part of SimCorp but are not sure this role is suitable, submit your CV anyway. SimCorp is on an exciting growth journey, and our Talent Acquisition Team is ready to assist you discover the right role for you. The approximate time to consider your CV is three weeks. We are eager to continually improve our talent acquisition process and make everyone’s experience positive and valuable. Therefore, during the process we will ask you to provide your feedback, which is highly appreciated. WHO WE ARE? For over 50 years, we have worked closely with investment and asset managers to become the world’s leading provider of integrated investment management solutions. We are 3,000+ colleagues with a broad range of nationalities, educations, professional experiences, ages, and backgrounds. SimCorp is an independent subsidiary of the Deutsche Börse Group. Following the recent merger with Axioma, we leverage the combined strength of our brands to provide an industry-leading, full, front-to- back offering for our clients. SimCorp is an equal opportunity employer and welcome applicants from all backgrounds, without regard to race, gender, age, disability, or any other protected status under applicable law. We are committed to building a culture where diverse perspectives and expertise are integrated into our everyday work. We believe in the continual growth and development of our employees, so that we can provide best-in-class solutions to our clients. #Li-Hybrid

Technology

SimCorp

Software Engineer (C#/.NET)

Mid

Hybrid

Warsaw, Poland

🏢 Summary: Software Engineer role in an agile team developing and enhancing the SimCorp Data Connectivity product using C# and .NET. The position involves implementing, testing, and supporting cloud-native solutions in Microsoft Azure with Angular-based web UI. The role focuses on continuous improvement of architecture, performance, and DevOps practices in a collaborative international environment. 🗂️ Requirements: Minimum 2 years of experience with C# and .NET development, Experience with infrastructure as code, Experience with ARM, Bicep, PowerShell or Azure Pipelines, Degree in Software Engineering, Computer Science, Data Science or related field, Fluency in English 📃 Skills: C#, .NET, Azure, Angular, ARM, Bicep, PowerShell, AzurePipelines, CI/CD, Agile 🏢 Description: WHAT MAKES US, US Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values — caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what we’re saying, keep reading! WHY THIS ROLE IS IMPORTANT TO US You will be working in an agile team of about 5-7 people. The team works on our Simcorp Data Connectivity product. In your daily work you will – together with your team - understand and challenge customer requirements, discuss solutions, implement and test the chosen solution, and support it. We use a variety of tools, but they are all centered around C# and .Net. You will mainly be working with cloud native services in Microsoft Azure and Angular Web UI. In addition to implementing the features, it is essential for us to continuously improve on all levels: company, division, product area, team, and individual. Your daily work life will thus also include topics such as “how can we reduce our build time”, “how can we rearchitect this component to perform significantly faster”, and “how can we work together in a more fun and effective way”. You will be working in Warsaw. You will collaborate with colleagues from Ukraine, Poland, Denmark, Austria, Germany, etc. English is the corporate language and is used in all communication. WHAT WE VALUE 2+ years of experience in software engineering using C# and .NET Development Experience with infrastructure as code preferably using Arm, Bicep, PowerShell and Azure pipelines You have a degree in Software Engineering, Computer Science, Data Science or similar Good communication skills and fluency in English (speaking and writing) Angular is a plus Understanding of Lean Agile practices, values and principles are a plus Knowledge of Microsoft Azure in production environments, such as experience with Azure cost pricing, Availability SLA’s and security of different solution approaches would be a plus As a person, you value Taking ownership and achieving results Trying new approaches to both new and old challenges Working with others to leverage the strengths of everyone in the team Learning new skills and improving upon existing ones Continually looking for ways to improve what we do and how we do it BENEFITS Flexible working hours and hybrid model - 2 days in the office, 3 days remote Modern office (next to Wilanowska metro station) with quiet zones and ergonomic workstations Base salary with annual bonus structure Holiday allowance upon a 2-week vacation Occasional remote work across Poland and international options available (up to 24 days domestic, 20 days international per year - subject to internal policy) Employer-paid Medicover Platinum healthcare package (employee-paid family upgrade available) Multisport card with 75% employer contribution Unum group life insurance (employee-paid upgrade available) Medicover travel insurance for private trips and global business travel insurance Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year) Copyrights program for certain roles Possibility to develop your career in an international environment Professional training and courses provided by SimCorp Polish language classes for foreign employees; German and English classes based on business needs Integration events, volunteering initiatives and employee-led clubs Compensation ranges are being disclosed at the initial stage of candidate engagement. NEXT STEPS Please send us your application in English via our career site as soon as possible, we process incoming applications continually . Please note that only applications sent through our system will be processed. At SimCorp, we recognize that bias can unintentionally occur in the recruitment process. To uphold fairness and equal opportunities for all applicants, we kindly ask you to exclude personal data such as photos, age, or any non-professional information from your application. Thank you for aiding us in our endeavor to mitigate biases in our recruitment process. If you are interested in being a part of SimCorp but are not sure this role is suitable, submit your CV anyway. SimCorp is on a positive growth journey, and our Talent Acquisition Team is ready to assist you discover the right role for you. The approximate time to consider your CV is three weeks. We are focused on continually improving our talent acquisition process and making everyone’s experience positive and valuable. Therefore, during the process we will ask you to provide your feedback, which is highly appreciated.

Technology

SimCorp

Lead Testing Services Consultant

Senior

Hybrid

Warsaw, Poland

🏢 Summary: Lead Software Tester role combining hands-on functional testing, project leadership, and client collaboration within financial software projects. The position focuses on driving testing delivery, managing backlogs and annual delivery plans, and ensuring high-quality outcomes across multiple client engagements. It requires both technical testing expertise and team leadership in Agile environments. 🗂️ Requirements: 4+ years of software testing experience, Experience leading testing processes and acting as testing lead, Ability to perform hands-on functional testing, Experience working in Agile environments, Familiarity with ISTQB principles, Fluent English (minimum B2), Knowledge of financial instruments, Experience working directly with clients, Ability to manage backlogs and delivery planning 📃 Skills: C#, PowerShell, Azure, AzureDevOps, VisualStudioCode, OOP, ISTQB, Agile 🏢 Description: WHAT MAKES US, US Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values — caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what we’re saying, keep reading! WHY THIS ROLE IS IMPORTANT TO US At SimCorp, we support some of the biggest financial institutions in the world to manage their investments, accounting, and operations more effectively by simplifying them. We are looking for a Lead Software Tester with demonstrated leadership skills to join our Testing Services team and help drive testing delivery across multiple client engagements. This role combines practical testing, project leadership, and direct client collaboration. WHAT YOU WILL BE RESPONSIBLE FOR Analyzing complex business requirements and translating them into effective test scenarios Executing and documenting test cases as part of in-depth functional testing Collaborating closely with functional teams, delivery teams, and client stakeholders Managing incidents, monitoring their progress, and providing clear reporting Leading meetings with clients and internal stakeholders Managing the backlog, prioritizing tasks, and planning team activities Identifying risks, dependencies, and impediments, and taking corrective actions Owning the Annual Delivery Plan (ADP) for assigned Testing Services projects Planning, forecasting, and maintaining ADP in line with client priorities and team capacity Monitoring delivery progress and reporting status to leadership and client representatives Acting as a subject matter specialist on Testing Services processes and best practices Managing leadership responsibilities with testing and supporting the team during critical delivery phases TECHNOLOGIES & TOOLS Tools: Azure DevOps, Visual Studio Code Languages: C# (OOP), PowerShell (scripting) WHAT WE VALUE 4+ years of experience in software testing Experience leading processes and acting as a testing lead within a team Ability to combine leadership responsibilities with practical testing Familiarity with ISTQB principles Extensive experience working in Agile environments Fluent English (minimum B2) Knowledge of financial instruments Experience working directly with clients Effective communication, problem-solving, and organizational skills Ability to lead teams, manage expectations, and drive delivery predictability BENEFITS Flexible working hours and hybrid model - 2 days in the office, 3 days remote Modern office (next to Wilanowska metro station) with quiet zones and ergonomic workstations Base salary with annual bonus structure Holiday allowance upon a 2-week vacation Occasional remote work across Poland and international options available (up to 24 days domestic, 20 days international per year - subject to internal policy) Employer-paid Medicover Platinum healthcare package (employee-paid family upgrade available) Multisport card with 75% employer contribution Unum group life insurance (employee-paid upgrade available) Medicover travel insurance for private trips and global business travel insurance Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year) Copyrights program for certain roles Possibility to develop your career in an international environment Professional training and courses provided by SimCorp Polish language classes for foreign employees; German and English classes based on business needs Integration events, volunteering initiatives and employee-led clubs Compensation ranges are being disclosed at the initial stage of candidate engagement. Visit our career pages to learn more about working at SimCorp: www.simcorp.com/career NEXT STEPS Please send us your application in English via our career site. Please note that only applications sent through our system will be processed. At SimCorp, we recognize that bias can unintentionally occur in the recruitment process. To uphold fairness and equal opportunities for all applicants, we kindly ask you to exclude personal data such as photo, age, or any non-professional information from your application. Thank you for aiding us in our endeavor to mitigate biases in our recruitment process. If you are interested in being a part of SimCorp but are not sure this role is suitable, submit your CV anyway. SimCorp is on an exciting growth journey, and our Talent Acquisition Team is ready to assist you discover the right role for you. The approximate time to consider your CV is three weeks. We are eager to continually improve our talent acquisition process and make everyone’s experience positive and valuable. Therefore, during the process we will ask you to provide your feedback, which is highly appreciated. WHO WE ARE For over 50 years, we have worked closely with investment and asset managers to become the world’s leading provider of integrated investment management solutions. We are 4,000+ colleagues with a broad range of nationalities, education, professional experiences, ages, and backgrounds in general. SimCorp is an independent subsidiary of the Deutsche Börse Group. Following the recent merger with Axioma, we leverage the combined strength of our brands to provide an industry-leading, full, front-to-back offering for our clients. SimCorp is an equal opportunity employer. We are committed to building a culture where diverse perspectives and expertise are integrated in our everyday work. We believe in the continual growth and development of our employees, so that we can provide best-in-class solutions to our clients.

Technology

EPAM Systems

Lead Azure DevOps Engineer

Senior

Remote

🏢 Summary: The offer is for a Lead DevOps Engineer to design, implement, and maintain Azure-based DevOps solutions within an agile product team. The role focuses on infrastructure as code, CI/CD pipeline implementation, cloud resource optimization, monitoring, and ensuring security and reliability across Azure environments. It also includes technical leadership and process automation initiatives. 🗂️ Requirements: 5+ years of DevOps experience in agile environments, Expertise in Azure DevOps, Strong experience with Terraform or OpenTofu, Hands-on experience with Datadog, Experience managing Azure resources (Container Apps, App Configuration, Key Vault), Familiarity with Cosmos DB and Data Lake, Knowledge of at least one programming language (e.g., C#), Azure or DevOps certification, English proficiency B2 or higher 📃 Skills: Azure, AzureDevOps, Terraform, OpenTofu, Datadog, CI/CD, ContainerApps, CosmosDB, DataLake, AppConfiguration, KeyVault, C#, IaC 🏢 Description: We are seeking a skilled Lead DevOps Engineer to join our agile product development team and take charge of designing, implementing, and maintaining robust DevOps solutions. This role involves collaborating closely with product owners, front-end, back-end, and other DevOps professionals to ensure seamless integration and high-quality deliverables. Responsibilities Develop and manage infrastructure as code (IaC) using Terraform/Opentofu for Azure (azurerm/azapi) Design and implement Azure Pipelines in Azure DevOps for CI/CD processes Leverage Datadog to monitor and ensure the performance and reliability of applications Optimize and manage Azure resources such as Container Apps, Cosmos DB, Data Lake, App Configuration, and Key Vault Collaborate effectively with agile product teams to align DevOps strategies with business objectives Work cross-functionally to troubleshoot, resolve, and prevent operational issues Ensure a high standard of system security and compliance within Azure environments Provide mentorship and technical guidance to teammates regarding DevOps practices Proactively identify and implement opportunities for process improvements and automation Requirements 5+ years of experience working as a DevOps Engineer in agile environments Expertise in Azure DevOps, Terraform, and Datadog Competency in Azure resources, including Container Apps, App Configuration, and Key Vault Familiarity with additional Azure services like Cosmos DB and Data Lake Understanding of at least one programming language such as C# Capability to work effectively within cross-functional teams and adapt to changing workflows Strong problem-solving and communication skills Relevant certification in Azure or DevOps practices English proficiency at B2 level or higher We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

Technology

EPAM Systems

Lead Full-Stack / .NET Developer

Senior

Hybrid

Krakow, Poland

🏢 Summary: Lead Full-Stack /.NET Developer role focused on modernizing a legacy accounting platform into a cloud-native Azure-based solution using microservices, .NET Core, Angular, and Kubernetes. The position involves backend API development, legacy system decomposition, Azure integrations, CI/CD, and AI-assisted software delivery practices. Candidates will work on scalable cloud architecture while collaborating across engineering and product teams. 🗂️ Requirements: 5+ years experience with .NET Core / ASP.NET Core and C#, Experience designing and implementing REST APIs, Angular frontend development skills, Understanding of microservices architecture, Experience with relational databases, Practical experience with Azure cloud services, Experience with CI/CD pipelines, Knowledge of Docker and Kubernetes / AKS, Ability to work with legacy systems and complex business logic, Strong troubleshooting and collaboration skills, Good English communication skills 📃 Skills: C#, ASP.NET, NETCore, Angular, REST, Azure, AKS, Docker, Kubernetes, SQL, AzureSQL, SQLServer, AzureDevOps, APIManagement, ApplicationGateway, FrontDoor, KeyVault, AzureMonitor, ACR, CI/CD, Microservices, GitHubCopilot 🏢 Description: We are looking for a strong Lead Full-Stack / .NET Developer to support the modernization of a legacy accounting application and its migration to Azure Cloud. The project focuses on transforming an existing desktop/monolithic application into a modern cloud-based solution based on microservices, .NET Core backend APIs, Angular frontend, and Azure platform services. The role requires hands-on engineering experience, strong backend/API development skills, and the ability to work in a modernization context where new cloud-native components need to coexist with legacy systems and shared data models. The team will also use AI-assisted delivery practices and AI agents as part of a new AI SDLC approach to improve development, analysis, testing, and delivery efficiency. Responsibilities Design, develop and maintain backend services and APIs using .NET Core / ASP.NET Core Support decomposition of legacy monolithic functionality into modular services and APIs Development and enhancement of Angular-based frontend components where needed Integration of application components with Azure services and existing backend systems Work with Azure Kubernetes Service, API Management, Application Gateway, Azure SQL and related platform services Contribute to technical analysis of legacy application behavior, data flows and integration points Implementation of clean, maintainable and testable code following engineering best practices Participation in code reviews, automated testing, CI/CD pipelines and release activities Collaboration with architects, product owners, QA engineers and other developers to clarify requirements and technical constraints Use of AI-assisted development tools and agents as part of the project delivery process Requirements 5+ years of experience with .NET Core / ASP.NET Core and C# Solid experience in designing and implementing REST APIs Skills in Angular and modern frontend development Understanding of microservices architecture and application modernization patterns Experience working with relational databases, preferably Azure SQL / SQL Server Practical experience with Azure cloud services Proficiency in CI/CD pipelines, preferably Azure DevOps Understanding of containerized application delivery, preferably Docker and Kubernetes / AKS Capability to work with legacy systems, existing data models and complex business logic Strong troubleshooting, communication and collaboration skills Good English communication skills Nice to have Background in accounting, finance, ERP or invoicing systems Experience migrating desktop or monolithic applications to cloud-native architectures Familiarity with Azure API Management, Application Gateway, Front Door, Key Vault, Azure Monitor and Azure Container Registry Expertise in domain-driven design, service decomposition and API-first development Skills in automated testing and quality engineering practices Flexibility to use AI-assisted development tools such as GitHub Copilot, Claude Code or similar coding agents Interest in AI SDLC, agent-assisted delivery and modern software engineering automation We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

Technology

SimCorp

Principal Architect

Senior

Hybrid

Warsaw, Poland

🏢 Summary: The role focuses on designing and implementing a scalable integration testing platform for a cloud-based service ecosystem, enabling automated, repeatable cross-system validation and post-merge quality gates. The position drives testing standards, test data strategy, and platform-wide adoption of modern, automated testing practices. It combines architectural decision-making with hands-on platform design across cloud, pipelines, and integration layers. 🗂️ Requirements: Proven experience building integration testing capabilities for service-based architectures, Hands-on experience with Microsoft Azure and Azure Kubernetes Service, Strong background in .NET, Deep knowledge of testing strategies and integration layering, Experience implementing quality gates and contract/API testing, Practical experience with test data management including synthetic data and data masking, Experience defining testing standards and reference architectures, Experience with performance and load testing, Ability to integrate testing into CI/CD pipelines 📃 Skills: Azure, AKS, .NET, API, CI/CD, Kubernetes, IntegrationTesting, ContractTesting, PerformanceTesting, LoadTesting, DataMasking, SyntheticData, SOC2, DORA 🏢 Description: WHAT MAKES US, US Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values — caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what we’re saying, keep reading! WHY THIS ROLE IS IMPORTANT FOR US SimCorp is investing in the integration layer of SimCorp One. We are looking for a Platform Test Architect to extend our platform capabilities for automated, repeatable cross-system testing, the crucial layer between system tests and end-to-end flows. Your work will enable product and platform teams to validate release candidates after the merge gate and qualify deliveries at scale across our service ecosystem. You will work closely with our Application Test Architect to cover the full testing spectrum. In addition, you will collaborate with architects responsible for platform services, engineering pipelines, and infrastructure to ensure testing capabilities integrate seamlessly into our delivery processes. Your focus will be on platform capabilities and execution, while our Application Test Architect leads application-side practices and client-facing testing coordination. Together with other architects, you will close today’s gaps and establish modern, scalable testing as a first-class engineering concern. WHAT YOU WILL BE RESPONSIBLE FOR To ensure success in this role, you will be involved in the following areas: Integration testing platform: Design and deliver a shared platform for integration testing of SimCorp One services (Microsoft Azure, Azure Kubernetes Service, .NET), enabling teams to add, run, and automate cross-system tests efficiently and repeatedly. Quality gates: Operationalize post-merge quality gates for release candidates, including contract and application programming interface testing, integration suites, sanity and smoke tests, and define the process for exceptions or waivers. Drive requirements: Help standardize testing capabilities in our eco-system and define how systems can test integration patterns. Adoption and enablement: Drive organization-wide adoption through templates, reference implementations, and recommended practices that teams can extend. Test data and environments: Define the strategy for test data and environments, including synthetic data, data masking, and production-equivalent snapshots, in collaboration with our operations and platform teams. Performance and load testing: Lay the groundwork for performance and load testing as a future phase, including tooling choices, service level agreements, and monitoring. Documentation and alignment: Document and align at scale by authoring reference architecture documents, patterns, and playbooks; publishing via the Architecture Hub; and measuring adoption and impact. Your role will be pivotal in ensuring that SimCorp remains an efficient, transparent leader in financial services, directly contributing to our strategic objectives and long-term success. WHAT WE VALUE To ensure success in this role, possessing one or more of the following skills will be highly beneficial: Integration testing experience: Experience in building integration testing capabilities for service-based architectures at scale, ideally in a business-to-business or software-as-a-service context. Cloud and platform expertise: Experience with Microsoft Azure and Azure Kubernetes Service; strong background in .NET. Testing strategies: Knowledge of testing strategies, including black/grey/white box testing, consumer-driven contract testing, integration layering, pipeline governance, and quality gates. Test data management: Practical experience with synthetic data approaches, data masking, and designing environments for testability. Testing economy: Optimization of cost-of-testing, including experience with shift-left patterns and ability to formulate various tradeoffs when adhering to economic testing approaches. Automation mindset: An automation-first mindset, with a track record of improving lead-time-for-changes, minimizing escaped defects, reducing failure rates, and increasing recovery speed. Stakeholder management: Strong stakeholder management skills, with the ability to drive consensus across platform, application, Site Reliability Engineering, and product teams, and to remain resilient in complex or ambiguous situations. Performance and security testing: Experience with performance and load testing, resilience testing, or security testing integration is a plus. Compliance and best practices: Exposure to compliance frameworks such as Service Organization Control 2 (SOC2) or Digital Operational Resilience Act (DORA) is beneficial but not required. Developer experience: Experience curating recommended practices and developer experience artifacts is valued. These skills will empower you to contribute significantly to our service delivery strategy and help maintain the highest standards of communication and efficiency for our platforms and services. HOW WE WORK At SimCorp, we believe that our success is driven by the collaboration and innovation of our people. Here is what you can expect and what we hope you'll bring to our team: Community leadership: You will be a key driver in the Testing Technical Collaboration Council, collaborating daily with platform and application architects, product owners, product managers, and value streams. Decision rights and alignment: You will have architectural decision rights and ensure alignment with adjacent core areas, including security, compliance, Site Reliability Engineering, and product. Testing review: As part of our architectural review of system and services, you will be responsible for reviewing the testing strategy of the system Enablement and scaling: The role is focused on building foundations and guidelines for other teams to scale; documentation and alignment are essential. Coaching and enablement: Parts of your time will be dedicated to the coaching and enablement of our Tech Leads and Engineering teams, with most of your time focused on architecture decisions and design. BENEFITS Flexible working hours and hybrid model - 2 days in the office, 3 days remote Modern office (next to Wilanowska metro station) with quiet zones and ergonomic workstations Base salary with annual bonus structure Holiday allowance upon a 2-week vacation Occasional remote work across Poland and international options available (up to 24 days domestic, 20 days international per year - subject to internal policy) Employer-paid Medicover Platinum healthcare package (employee-paid family upgrade available) Multisport card with 75% employer contribution Unum group life insurance (employee-paid upgrade available) Medicover travel insurance for private trips and global business travel insurance Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year) Copyrights program for certain roles Possibility to develop your career in an international environment Professional training and courses provided by SimCorp Polish language classes for foreign employees; German and English classes based on business needs Integration events, volunteering initiatives and employee-led clubs Compensation ranges are being disclosed at the initial stage of candidate engagement. NEXT STEPS Please click below to apply to learn more about the vacancy and what SimCorp has to offer regarding salary, benefits, and perks. Applications are continuously assessed, so please send your CV in English as soon as possible. If you are interested in being a part of SimCorp but are not sure this role is the right fit, submit your CV anyway. SimCorp is on an exciting growth journey, and our Talent Acquisition Team is ready to help you discover the right role for you. The approximate time to consider your CV is three weeks. We are eager to continually improve our talent acquisition process and make everyone’s experience positive and valuable. Therefore, during the process, we will ask you to provide your feedback, which is highly appreciated.