May 5, 2026

Full Stack Developer (.NET+Angular)

Senior • Remote

2,150 - 3,000 USD

Belgrade, Serbia

Andersen is hiring a Full Stack Developer (.NET + Angular) for a project developing a travel platform with API integrations, data sync, and scalable booking solutions. 

The customer is a technology-driven company in the travel sector, providing a comprehensive booking and procurement platform for industry professionals. Its solutions support large transaction volumes, integrate with a wide network of partners, and offer tools that streamline operations and enhance productivity. Focused on innovation and scalability, the customer continues to expand its ecosystem, strengthen partnerships, and improve data accuracy to deliver a modern digital infrastructure for the travel value chain. 

The project is focused on developing a travel platform that integrates multiple external suppliers and aggregator APIs into a unified system. It includes end-to-end API integrations, data synchronization, and optimization of booking flows to ensure scalable, reliable, and high-performance travel product distribution. 

The position assumes 12 to 21 CET work schedule. 

Responsibilities:  

  • Developing well-tested, integrated software that meets high development standards. 

  • Evaluating new functionality requests on a value scale, contributing technical insights to prioritization decisions. 

  • Actively participating in team meetings and offer recommendations and ideas on design projects. 

  • Mentoring intermediate and junior developers, helping them grow through code reviews and hands-on collaboration. 

  • Working with Product Managers and architects to estimate, plan, test, integrate, and deliver complex, scalable software. 

  • Creating design documents and documentation to ensure efficient maintenance and knowledge continuity. 

  • Communicating effectively with key partners and internal users regarding timelines, technical issues, and infrastructure integration. 

  • Exploring and making recommendations based on current trends, techniques, and technologies that could positively impact our platform. 

Must-haves: 

  • Hands-on experience with C# and the .NET ecosystem (both .NET Framework legacy and .NET Core) for 3+ years. 

  • Experience with Angular (2+). 

  • Strong SQL Server expertise: writing and optimizing complex T‑SQL queries and stored procedures; working with large, intricate legacy database schemas. 

  • Proven experience with legacy codebases and a pragmatic approach to modernization. 

  • Solid understanding of microservices architecture patterns and decomposition strategies for migrating from monolithic .NET applications. 

  • Experience building and consuming RESTful APIs and working with Entity Framework (or similar ORMs). 

  • Working knowledge of Docker, Kubernetes, and Azure Cloud (able to navigate and deploy within an Azure environment). 

  • Exposure to CI/CD pipelines (ideally Azure Pipelines). 

  • Ability to take initiative, communicate clearly, work with ambiguity, and balance speed with quality. 

  • Experience writing clear documentation (JIRA, Confluence). 

  • Level of English – from Intermediate+ and above. 

Nice-to-haves: 

  • Exposure to legacy .NET Web Forms with HTML/JS. 

  • Familiarity with message‑based architectures: NServiceBus or Azure Service Bus. 

  • MongoDB experience. 

  • Experience with GraphQL. 

  • Familiarity with Redis for caching. 

  • Experience with Azure Data Factory for data orchestration. 

  • Experience using AI tools like GitHub Copilot or Claude (including Claude Code). 

Reasons why this job would be interesting to you: 

  • Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc..  

  • The opportunity to change the project and/or develop expertise in an interesting business domain.  

  • Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant.  

  • Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee.  

  • The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. 

  • Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated.  

  • Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies);  

  • Certification compensation (AWS, PMP, etc).  

  • Referral program.  

  • English courses.  

  • Private health insurance and compensation for sports activities. 

Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy

Join us! 

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Remote

Warsaw, Poland

🏢 Summary: Backend Developer role focused on building scalable cloud-native applications and backend services using C#/.NET and Azure technologies. The position involves REST API development, software architecture, CI/CD pipelines, cloud integrations, and full SDLC participation in enterprise software projects. The offer includes remote or hybrid work options, professional growth opportunities, training access, and health benefits. 🗂️ Requirements: 3+ years of experience with C# and .NET/.NET Core/ASP.NET Core, Experience designing and developing REST APIs and web services, Knowledge of SQL Server, JSON, and XML, Understanding of SDLC, OOP, SOLID principles, and design patterns, Experience with unit testing, test automation, and Git, Experience working in Agile environments, Experience with Azure App Services, Azure Service Bus, Azure Key Vault, and Azure DevOps, Knowledge of CI/CD pipelines, deployments, release flows, and integrations, Understanding of Azure cloud architecture and cloud-native application design, Experience with Azure Functions, Azure Storage, Azure SQL, Azure Cosmos DB, and Azure monitoring tools, Experience with Infrastructure as Code using Terraform or Bicep, Intermediate+ English level 📃 Skills: C#, .NET, ASP.NET, REST, SQL, JSON, XML, Git, Azure, AzureSQL, CosmosDB, Terraform, Bicep, CI/CD, AzureDevOps, AzureFunctions, AzureStorage, ServiceBus, KeyVault, OOP, SOLID, SDLC, Agile 🏢 Description: Andersen is hiring a Backend Developer (C#/.NET) in the EU to build scalable backend solutions, develop cloud-native applications, and contribute to modern enterprise software projects. Responsibilities: - Designing, developing, and maintaining backend services using C#/.NET. - Designing and implementing REST APIs and backend integrations. - Contributing to software architecture and technical design decisions. - Integrating applications with Azure services and cloud infrastructure. - Working with SQL Server, Azure SQL, and, where applicable, Azure Cosmos DB. - Developing unit tests and contributing to automated testing and overall code quality. - Performing code reviews, troubleshooting issues, optimizing performance, and reducing technical debt. - Participating in the full software development lifecycle, from requirements gathering through deployment and maintenance. - Collaborating closely with Product Owners, Solution Architects, QA engineers, and cross-functional development teams. - Building cloud-native services, CI/CD pipelines, and integrations with data and AI platforms for cloud-focused projects. - Enhancing and maintaining desktop applications, implementing algorithm-driven features, and developing high-performance, testable software components for desktop-focused projects. Must-haves: - Strong experience with C#, .NET / .NET Core / ASP.NET Core for 3+ years. - Hands-on experience designing and developing REST APIs and web services. - Strong knowledge of SQL Server, JSON, and XML. - Solid understanding of the Software Development Lifecycle (SDLC), OOP, SOLID principles, and design patterns. - Experience with unit testing, test automation, and Git. - Experience working in Agile environments. - Hands-on experience with Azure App Services, Azure Service Bus, Azure Key Vault, and Azure DevOps, including CI/CD pipelines, deployments, release flows, and integrations. - Strong understanding of Azure cloud architecture and cloud-native application design. - Experience with Azure Functions, Azure Storage, Azure SQL, Azure Cosmos DB, and Azure monitoring/observability. - Experience with Infrastructure as Code (Terraform, Bicep). - Level of English – from Intermediate+ and above. Nice-to-have: - Experience with Azure Data Lake, Azure Machine Learning, Event Grid, Azure Kubernetes Service (AKS), Azure AI, and data pipelines. - Experience with Azure VM administration. - Experience with Angular 2+. - Knowledge of Python, Machine Learning, or AI algorithms. - Experience with desktop application development using WPF or WinForms. - Understanding of DevOps culture and Site Reliability Engineering (SRE) practices. - Experience with people management or technical leadership. - Experience building analytics or data-intensive systems. Reasons why this job would be interesting to you: - Opportunity to work on projects in FinTech, Healthcare, Retail, Telecom, and other industries. - Opportunity to change projects and develop expertise in different business domains. - Flexible work format: remote, office-based, or hybrid. - Professional, financial, and career growth opportunities with mentoring and adaptation programs. - Opportunity to earn additional monthly bonuses based on expertise and company participation. - Access to a corporate training portal and updated knowledge base. - Certification compensation (AWS, PMP, etc.). - Referral program. - Private health insurance and compensation for sports activities. Your personal data is protected in accordance with GDPR regulations.

Technology

Andersen

Backend Developer (.NET) in the EU

Senior

Hybrid

2,500 - 3,500 USD

🏢 Summary: Backend Developer (.NET) role focused on modernizing a legacy financial platform into a scalable, cloud-oriented microservices and event-driven architecture. The position involves building data-heavy backend services, handling data migration and quality, and integrating with modern storage and messaging solutions. Work includes full lifecycle development within an Agile environment using Azure-based tooling. 🗂️ Requirements: 4+ years commercial .NET/C# backend development experience, Strong expertise in C# and .NET Framework/.NET Core/.NET 8, Hands-on experience with microservices architecture, Experience with containerization, Practical experience with Azure Cosmos DB or other NoSQL databases, Strong understanding of CQRS, event sourcing, and event-driven architecture, Experience with Azure Event Hub, Kafka, or similar messaging systems, Experience with SQL Server and legacy stored procedures, Advanced SQL Server knowledge and performance tuning, Experience in data-heavy projects (data cleaning, migrations, data quality, data pipelines), Experience with Azure DevOps (boards, repos, pipelines), Proficiency with Git, Experience with CI/CD pipelines, Experience with unit testing, Upper-Intermediate English or higher 📃 Skills: C#, .NET, .NETCore, .NET8, Microservices, Azure, CosmosDB, NoSQL, SQLServer, CQRS, EventSourcing, Kafka, EventHub, Containerization, AzureDevOps, Git, CICD, UnitTesting 🏢 Description: Andersen is hiring a Backend Developer (.NET) in the EU for a project modernizing digital platforms and building scalable microservices-based solutions. The customer is an international financial services company focused on digital banking, payment solutions, and credit products across multiple European markets. The company operates in a technology-driven environment, developing scalable digital platforms, automated services, and modern payment infrastructure while actively investing in fintech innovation, cloud solutions, and data-driven technologies. The project is focused on modernizing an existing platform by transitioning from legacy architectures to a microservices and event-driven ecosystem. It includes developing new functionality in .NET and improving scalability, maintainability, and system flexibility. Responsibilities: Participating in the development of .NET-based microservices within a modern cloud-oriented architecture. Working on data-heavy backend features related to customer data management, data quality, and data synchronization. Contributing to data cleaning and migration activities, including work with SQL Server and legacy stored procedures. Designing and implementing services using event-driven architecture and event sourcing principles. Integrating backend services with NoSQL storage and search/indexing components. Supporting improvements to data anonymization and regulatory data handling processes. Collaborating with data analytics, QA, DevOps/Ops, and other engineering team members. Investigating and resolving service requests, defects, and production-related issues within the team’s scope. Participating in Agile/Scrum ceremonies, including sprint planning, daily standups, refinements, and reviews. Working with Azure DevOps boards, repositories, and pipelines as part of the delivery process. Must-haves: Commercial .NET / C# backend development experience for 4+ years. Strong expertise in C# and .NET Framework / .NET Core / .NET 8. Hands-on experience building microservice architectures. Experience with containerization. Practical experience with Azure Cosmos DB and/or other NoSQL storage. Solid understanding of event sourcing, CQRS and event-driven architecture. Experience with Azure Event Hub / Kafka or similar. Experience with SQL Server and legacy stored procedures for legacy layer work. Advanced SQL Server knowledge, including performance tuning. Experience on data-heavy projects, including data cleaning, migrations, data quality work, and building data pipelines. Comfortable with Azure DevOps as a toolset (boards, repos, pipelines). Proficiency in Git. Experience with CI/CD pipelines. Experience with unit testing. Level of English – from Upper-Intermediate and above. Nice to Have: Experience in FinTech / banking / regulated environments (payments, cards, lending, core banking). Practical knowledge of GDPR data requirements and experience working in regulated environments. Experience with Azure Data Factory. Familiarity with Databricks. Familiarity with Azure AI Search. Experience with Elastic Search suite (Elasticsearch, Kibana, Logstash or similar). Experience with IBM IIB / Enterprise Service Bus or similar integration tools. Experience with Enterprise Scheduler tools (Automic or similar). DevOps awareness: understanding of CI/CD, IaC to comfortably work in a pipeline-driven environment. Background in data quality / MDM / master data management projects. Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). Certification compensation (AWS, PMP, etc). Referral program. Private health insurance and compensation for sports activities. Join us! Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy/pl

Technology

Andersen

Backend Developer (.NET) in the EU

Senior

Hybrid

2,500 - 4,000 USD

🏢 Summary: Backend Developer (.NET) role focused on modernizing core banking systems and payment integrations, including migration from on-premise infrastructure to cloud-based solutions. The position involves building scalable microservices and high-performance backend components within an Agile environment. Strong emphasis on reliability, performance tuning, and CI/CD practices in a fintech domain. 🗂️ Requirements: 4+ years backend development experience, Strong expertise in C#, Strong expertise in .NET Framework or .NET Core, Experience with microservices architecture, Advanced SQL Server knowledge, Experience with performance tuning and stored procedures, Hands-on unit testing experience, Experience with Azure DevOps, Understanding of CI/CD pipelines, Experience in fintech, banking, payments or trading domain, Experience working in Agile/Scrum teams, Upper-Intermediate English or higher 📃 Skills: C#, .NET, SQL, SQLServer, Microservices, Azure, AzureDevOps, CI/CD, Git, UnitTesting, Agile, Scrum 🏢 Description: Andersen is hiring a Backend Developer (.NET) in the EU for a project modernizing banking systems and payment integrations, including migration to cloud-based solutions. The customer is an international financial services company focused on digital banking, payment solutions, and credit products across multiple European markets. The company operates in a technology-driven environment, developing scalable digital platforms, automated services, and modern payment infrastructure while actively investing in fintech innovation, cloud solutions, and data-driven technologies. The project is focused on developing and modernizing core banking ecosystem and payment integrations. It also involves migrating key components from on-premise infrastructure to cloud-based solutions to improve scalability, reliability, and operational efficiency. Responsibilities: Developing high-quality backend components using C# and .NET Framework/.NET Core. Building and maintaining SQL Server database logic including stored procedures, performance-tuned queries, and data processing routines. Participating in code reviews, unit test development, and quality assurance practices. Collaborating with architects, analysts, QA specialists, and cross-functional teams within an Agile/Scrum environment. Contributing to debugging, troubleshooting, and resolution of backend issues. Working with Git-based workflows for version control and collaboration. Ensuring the reliability and maintainability of backend services and integrations. Must-haves: Experience in backend development for 4+ years. Strong expertise in C# and .NET Framework/.NET Core. Experience developing microservices systems. Advanced SQL Server knowledge, including performance tuning and stored procedures. Hands-on experience with unit testing and writing automated test coverage. Experience with Azure DevOps. Exposure to CI/CD concepts and pipelines. Experience in fintech, banking, payments or trading domains. Experience working in Agile/Scrum teams. Strong analytical, debugging, and problem-solving skills. Level of English – from Upper-Intermediate and above. Nice to Have: Experience with IBM IIB (or similar ESB/integration tools). Knowledge of the Elastic Stack (Elasticsearch, Kibana, Logstash). Knowledge of enterprise scheduling tools (e.g., Automic). Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). Certification compensation (AWS, PMP, etc). Referral program. English courses. Private health insurance and compensation for sports activities. Join us! Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy/pl

Technology

Andersen

Senior .NET/Azure Developer

Senior

Remote

Warsaw, Poland

🏢 Summary: Senior .NET/Azure Developer role focused on building a cloud-based risk intelligence platform that delivers analytics and ML-driven insights via scalable APIs and backend services. The position involves designing integrations across Azure data services and implementing reliable, high-performance cloud-native solutions. You will contribute to architecture, CI/CD, and SaaS solution development within the Azure ecosystem. 🗂️ Requirements: 4+ years of backend development experience with C# and .NET Core / ASP.NET, Experience building RESTful APIs and services, Strong knowledge of Azure cloud technologies (Service Bus, Key Vault, App Services, Azure DevOps), Hands-on experience with Azure DevOps CI/CD pipelines and deployments, Understanding of Azure cloud architecture and cloud-native patterns, Experience with JSON and XML and service integration patterns, Experience with test frameworks for RESTful services, Knowledge of OOP, design patterns, and SOLID principles, Experience with version control and CI tools, Upper-Intermediate or higher English level 📃 Skills: C#, .NET, ASP.NET, REST, JSON, XML, Azure, ServiceBus, KeyVault, AppServices, AzureDevOps, CICD, OOP, SOLID, Git, Testing 🏢 Description: Andersen is hiring a Senior .NET/Azure Developer for a project building a risk intelligence platform, enabling data-driven insights and improved decision-making. The customer is a global organization operating in the professional services domain. It provides a range of advisory and analytical support to organizations across multiple industries, helping them improve business performance and address complex operational challenges. The company leverages data, industry knowledge, and digital tools to deliver practical solutions, supporting decision-making, organizational development, and long-term efficiency. The project is focused on developing a digital platform that supports risk intelligence and resilience decision-making. It leverages data, analytics, and modeling to help organizations assess risk exposure and improve operational performance. Responsibilities: Designing and implementing APIs and backend services for accessing, processing, and exposing analytical and ML-driven data. Building integration layers between data platforms (Azure Data Lake, Azure SQL, Cosmos DB) and applications. Implementing data ingestion, transformation, and orchestration workflows in collaboration with data teams. Working with semi-structured data (JSON) and integrating it into scalable backend services. Supporting AI-driven pipelines and integrating outputs from Azure ML and similar services. Ensuring performance, scalability, and reliability of services in line with SLAs. Integrating backend components within the Azure ecosystem (Functions, Storage, messaging). Contributing to system architecture, especially service boundaries between data and application layers. Writing clean, maintainable, and testable code, including unit tests and automation. Collaborating with architects, data engineers, and frontend teams, and supporting backlog refinement with Product Owners. Conducting code reviews, debugging issues, and improving system performance. Developing PoCs and contributing to SaaS solution design using modern technologies. Implementing high-performance cloud solutions using Azure and IaC practices. Must-haves: Hands-on experience with backend development using C#, .NET Core / ASP.NET , building RESTful APIs and services, for 4+ years. Familiarity with JSON/XML and service integration patterns. Strong experience with Azure cloud technologies, including Azure Service Bus, Azure Key Vault, Azure App Services, and Azure DevOps. Hands-on experience with Azure DevOps CI/CD pipelines, deployments, release flows, and integrations. Understanding of Azure cloud architecture and cloud-native patterns. Experience working with test frameworks/test cases for RESTful services. Experience with software engineering best practices: object-oriented, design patterns, SOLID principles. Experience with software development ecosystem (IDE’s, version control, test automation/CI, etc.). Strong appreciation of building flexible cross-functional full-stack squads with shift-left DevOps, SRE and QA culture. Level of English – from Upper-Intermediate and above. Nice-to-haves: Experience in frontend development using Angular. Strong appreciation of DevOps principles, with the ability to create automated processes to continuously deliver SaaS products on a regular cadence. Exposure to people management or team leadership. Experience with Azure Data Lake, Azure ML, Event Grid, AKS, Azure AI/data pipelines, and Azure VM administration. Experience with Azure Functions, Azure Storage, Cosmos DB, Azure SQL, Azure messaging patterns, Azure monitoring/observability, and Infrastructure as Code in Azure (Terraform/Bicep). Experience with SQL Server or other database management systems. Degree in Computer Science, Engineering, Mathematics, or related fields. Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). Certification compensation (AWS, PMP, etc). Referral program. English courses. Private health insurance and compensation for sports activities. Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy/pl Join us!