🚀 Senior .Net Fullstack Developer (m/k) 🚀

🏢 Summary: C# Developer role focused on building and enhancing a modern web platform for the financial industry using .NET Core, React, and cloud technologies. The position involves developing new features, maintaining existing functionality, and contributing to architectural decisions within a collaborative engineering team. The offer includes impactful product work with modern tech stack and international collaboration. 🗂️ Requirements: Minimum 5 years of experience in object-oriented programming, Strong experience with C#, Commercial experience with DotNetCore, Experience building web applications using MVC, Hands-on experience with SQL databases, Experience with MSSQL or Oracle, Working knowledge of React, Practical experience with EntityFramework 📃 Skills: C#, DotNetCore, MVC, SQL, MSSQL, Oracle, React, EntityFramework, Azure, AzureDevOps, CICD, OOP 🏢 Description: We are looking for a skilled C# Developer to join our team working on an innovative web platform for the financial industry . If you enjoy working with modern technologies like .NET Core, Azure, and React.js , and want to be part of a collaborative team. We’d love to hear from you! Your role As a C# Developer , you will work alongside experienced engineers, contributing to the development of new product features and enhancing existing ones. You’ll have a direct impact on the product's evolution, with the freedom to bring in your own ideas and solutions. Offer A real opportunity to make an impact — we truly value ideas and suggestions from the team, and we encourage you to bring them to life, Attractive salary and the chance to work with modern technologies , Occasional international travel (mainly to London, UK), A modern office in the center of Wrocław . Requirements Minimum 5 years of experience in object-oriented programming, Solid experience in designing, coding, and debugging in C# / .NET Core , Experience in building web applications using the MVC framework , Hands-on experience with SQL databases (e.g., MS SQL, Oracle), Working knowledge of React.js , Practical understanding of Entity Framework , Strong communication skills in English (both written and spoken) and the ability to collaborate effectively in a team, Proactive attitude, enthusiasm , and a results-driven mindset — we’re looking for people who love learning and using new technologies to build great products. Nice to have: Familiarity with design patterns , Experience with CSS frameworks (e.g., Bootstrap), Knowledge of Microsoft Azure , Understanding of CI/CD processes , including automated deployments with Azure DevOps.

🏢 Summary: The offer is for a C# Developer role focused on building new product features and enhancing existing ones within a modern tech stack. The position involves active participation in product development with real influence on technical decisions. It includes working with web technologies and databases in a collaborative engineering team. 🗂️ Requirements: Strong experience with C# and .NET Core, Experience with MVC web applications, Solid SQL knowledge (MS SQL or Oracle), Working knowledge of React.js, Experience with Entity Framework 📃 Skills: C#, .NET, .NETCore, MVC, SQL, MSSQL, Oracle, React, EntityFramework 🏢 Description: 🚀 Your role As a C# Developer, you’ll join a team of experienced engineers and play an active role in building new product features as well as improving existing ones. You’ll have a real impact on the product’s direction — with space to bring your own ideas and turn them into reality. What’s in it for you 💡 Real influence on the product — your ideas actually matter here 💰 Attractive salary + work with modern technologies ✈️ Occasional international travel (mainly London, UK) 🏢 Modern office in the center of Wrocław Requirements ⚙️ Strong experience with C# / .NET Core (design, coding, debugging) 🌐 Experience with web applications (MVC framework) 🗄️ Solid SQL skills (MS SQL / Oracle) ⚛️ Working knowledge of React.js 🔗 Experience with Entity Framework 🇬🇧 Good communication skills in English (written & spoken)

🏢 Summary: Development role focused on designing and delivering software solutions for a UK financial institution, working closely with business teams across the full technology stack. The position involves building modern .NET and Angular applications, contributing to solution design, and supporting production systems. 🗂️ Requirements: 5+ years experience with .NET and C#, Commercial experience with Angular, Experience with .NET 6 or higher, Experience with .NET Core, Experience with SQL databases, Cross-stack development experience, Experience with API design and development, Knowledge of Azure cloud 📃 Skills: .NET, .NETCore, C#, Angular, SQL, Azure, APIs 🏢 Description: We are looking for a Developer to join our team and work with us for one of our clients - financial institution from UK. Main goals: design & development of software solutions to support the business requirements. Responsibilities Design, develop and deliver software solutions in conjunction with the Business Teams Work in conjunction with the Business Teams during the design process to contribute to business and technical solutions Actively promote and distribute knowledge amongst peers in the development team Identify innovative opportunities which will improve the businesses ability to succeed Provide expert / second line application support to users About You Must have: +5 years of experience: .NET, C#, Angular & English Skills: Cross stack working knowledge, including the following mandatory technologies: Microsoft technologies including .NET (6 and above) .NET Core C# Angular SQL Desirable: Knowledge of Azure cloud Knowledge of API Design and Development Analytical skills and ability to understand complex problems Willingness to investigate, trial and propose new concepts, technologies and approaches Enthusiastic and flexible attitude to work Nice to have: Copilot experience Understanding of automated testing techniques Other Relevant Information: Team player Good attention to detail Good communication skills Willing to take responsibility What we offer Friendly organisational culture Work in a small company in a friendly atmosphere, where your satisfaction is an important value B2B or work contract Flexible working format - remote, office-based or hybrid Flexible working hours Integration events English lessons

🏢 Summary: Senior C# Developer role focused on building and evolving core backend systems for XVA, Liquidity, and Financial Resource Management within a global financial project. The position involves developing scalable, event-driven solutions in a distributed agile team and supporting high-impact financial tools used in fast-moving markets. The role also contributes to migrating legacy systems to a modern event-driven architecture. 🗂️ Requirements: Strong experience with C# and .NET ecosystem, Experience with ASP.NET Web API, Knowledge of event-driven architecture, Experience with asynchronous messaging, Strong understanding of OOP and design patterns, Experience with service-oriented architectures, Strong knowledge of MS SQL, Experience with DevOps tools in enterprise environments, Practical knowledge of LLM and agentic AI engineering, Familiarity with at least two financial domains: Listed/OTC products, PnL, XVA, Liquidity risk, Cash forecasting, Balance sheet metrics 📃 Skills: C#, .NET, ASP.NET, WebAPI, Rebus, SignalR, Windows, MS SQL, Dapper, GIT, Bitbucket, TeamCity, Jenkins, Ansible, OOP, SOA, LLM, AI, XVA 🏢 Description: Are you an experienced C# Developer ready to join a cutting-edge global financial project? We are partnering with a leading international financial institution seeking a Senior C# Developer to join their distributed, agile team focused on building and evolving core systems for XVA, Liquidity, and Financial Resource Management. What you9ll do: Develop and maintain core backend systems using C# .NET, ASP.NET Web API, and event-driven architecture Work with asynchronous messaging (Rebus) to build scalable, reliable solutions Collaborate with an international team committed to clean code and software craftsmanship Influence the migration to a modern event-driven backend architecture Support high-impact financial tools used daily by hundreds of users in fast-moving markets Tech stack: C# .NET, Windows Services, ASP.NET Web API, SignalR MS SQL, Dapper ORM DevOps tools: GIT (Bitbucket), TeamCity, Jenkins, Ansible Event-driven messaging with Rebus What we9re looking for: Strong expertise in OOP, design patterns, and .NET ecosystem Deep understanding of service-oriented architectures and MS SQL Experience with DevOps in enterprise environments Practical knowledge of LLM capabilities and agentic AI engineering within software development Familiarity with financial products and risk management (at least 2 of): Listed/OTC products, PnL explain & risks, XVA models, Liquidity risk, Cash forecasting, or Balance sheet metrics Bonus points: Front-end experience with HTML, JavaScript/TypeScript, React, Redux Personal qualities: Highly autonomous and excels in teamwork Great communication, analytical thinking, and organisational skills Detail-oriented, even under tight deadlines Proactive and flexible in facing daily engineering challenges Motivated to work closely with front-office IT teams Integrity and role-model attitude fostering a positive work culture

🏢 Summary: The role involves developing and maintaining applications within the .NET ecosystem, integrating them with cloud platforms, and supporting DevOps automation processes. The position focuses on building scalable solutions, managing CI/CD pipelines, and implementing Infrastructure as Code in Azure and GCP environments. The developer will collaborate with cross-functional teams to enhance data integration and deployment workflows. 🗂️ Requirements: Strong experience with C#, Strong experience with .NET framework or .NET ecosystem, Experience with Python, Experience with Azure, Experience with GCP, Knowledge of GitHub, Knowledge of GitHub Actions, Knowledge of Azure DevOps, Experience with CI/CD pipelines, Experience with Terraform, Experience with Infrastructure as Code, Fluency in Polish, Fluency in English 📃 Skills: C#, .NET, Python, Azure, GCP, GitHub, GitHubActions, AzureDevOps, CI/CD, Terraform, SQL, Spotfire, Signals 🏢 Description: Role Overview We are looking for a C#/.NET Developer with experience in cloud environments and DevOps practices to join our team. In this role, you will be responsible for developing and maintaining applications built on the .NET ecosystem, integrating them with cloud services, and supporting automation and deployment processes. You will work closely with cross-functional teams to build scalable solutions, integrate data and analytics tools, and improve development workflows through modern DevOps practices. Key Responsibilities Design, develop, and maintain applications using C# and .NET technologies . Support development and automation tasks using Python where appropriate. Work with cloud platforms (Azure and GCP) to deploy and manage applications and services. Implement and maintain DevOps processes , including CI/CD pipelines using GitHub, GitHub Actions, and Azure DevOps (ADO) . Manage infrastructure and environments using Infrastructure as Code tools such as Terraform . Integrate applications with analytics and visualization tools such as Spotfire . Work with Signals .NET framework–based systems to support data integration and application functionality. Collaborate with engineering, data, and DevOps teams to ensure reliable and scalable solutions. Required Skills Strong experience with C# and .NET framework / .NET ecosystem . Experience with Python for scripting, automation, or data-related tasks. Knowledge of DevOps tools and practices , including GitHub, GitHub Actions, and Azure DevOps (ADO) . Experience working with cloud platforms such as Microsoft Azure and Google Cloud Platform (GCP) . Familiarity with Infrastructure as Code , particularly Terraform . Experience working with SQL or data-driven applications is a plus. Good understanding of CI/CD pipelines and automated deployment processes . Polish and English must have Nice to Have Basic knowledge of Spotfire or other analytics/visualization tools. Experience with Signals platform and .NET-based integrations . Experience working in Agile development environments .

🏢 Summary: Remote C# Developer role focused on low-level development, hardware integration, and firmware communication for AI-driven investment technology solutions. The position involves building machine-oriented software systems in a distributed Agile environment with CI/CD practices. Candidates will collaborate on performance, reliability, and embedded system integration projects. 🗂️ Requirements: Minimum 5 years of experience with C#, Experience with low-level development, Experience with hardware interaction, Knowledge of firmware interfacing, Knowledge of control layer communication, Experience with Agile methodologies, Experience with CI/CD processes, Experience with GitHub or GitLab, English proficiency at B2 level 📃 Skills: C#, Firmware, CI/CD, GitHub, GitLab, Agile, SAFe 🏢 Description: We are looking for an experienced C# Developer with a strong background in low-level development and hardware integration to join Sii and contribute to an innovative project delivered for our client — an international company operating in the AI-driven investment technology domain. You’ll work in a fully remote, startup-like environment, building solutions that combine software engineering with machine-level interaction and firmware communication. This is a great opportunity to grow within distributed teams and modern engineering practices, including CI/CD and Agile delivery models. At Sii, we support continuous development and offer access to diverse projects aligned with your expertise. If you like getting close to the hardware, enjoy solving complex integration challenges, and want to see how your code interacts with real-world systems — this project is for you. Apply now and build solutions where software meets machines. Not a 100% match? Let’s talk anyway — we’ll match you with the right opportunity. Your tasks Develop and maintain C# applications interacting with hardware components and low-level systems Design and implement interfaces for communication with machine control layers and embedded components Integrate software solutions with firmware and ensure reliable data exchange between layers Collaborate with cross-functional, distributed teams in an Agile environment using CI/CD pipelines Participate in code reviews, testing, and continuous improvement of system performance and reliability Requirements Minimum 5 years of experience as a C# Developer or in a similar role Hands-on experience with low-level or machine-oriented development and hardware interaction Strong knowledge of firmware interfacing and control layer communication Practical experience with Agile methodologies and CI/CD processes (GitHub/GitLab) English proficiency at min. B2 level (comfortable working in an international environment) Nice-to-have requirements Experience working in a SAFe environment

🏢 Summary: Mid-Level .NET Developer role focused on building and maintaining online banking applications in a hybrid work model. The position involves developing scalable financial systems, integrating APIs, and ensuring high code quality in an Agile environment. You will contribute to digital transformation initiatives within modern fintech projects. 🗂️ Requirements: Minimum 3 years of experience with C# and .NET (Core, 5/6, Framework), Strong experience with MSSQL, Experience implementing REST APIs, Experience writing unit tests using xUnit and xRay, Knowledge of message queuing systems (RabbitMQ or Kafka), Knowledge of OOP and SOLID principles, Basic knowledge of Kubernetes and Docker, Experience with CI/CD tools, Familiarity with Agile/Scrum methodology, Communicative English proficiency, Legal right to work in the European Union 📃 Skills: C#, .NET, .NETCore, .NET5, .NET6, .NETFramework, MSSQL, REST, xUnit, xRay, RabbitMQ, Kafka, Kubernetes, Docker, OOP, SOLID, CICD, Bitbucket, JIRA, TeamCity, Agile, Scrum 🏢 Description: Unleash Innovation in Financial Technology — Shape the Future of Online Banking! Łódź-based opportunity with a hybrid work model (2 days in the office per month) As a Mid-Level .NET Developer , you will be working for our client, a leader in online banking, on cutting-edge financial technology projects designed to enhance user experience and system efficiency. Join a fast-paced environment where your expertise drives digital transformation and financial innovation. Your main responsibilities: Develop and maintain applications using C#, .NET Core Implement and integrate RESTful APIs Write unit tests to ensure code quality Follow and apply design patterns and best practices such as OOP and SOLID Work with MSSQL databases Collaborate with cross-functional teams using tools like Bitbucket, JIRA, and TeamCity Participate in Agile/Scrum meetings and contribute to sprint planning and review Troubleshoot and resolve complex technical issues You're ideal for this role if you have: At least 3 years of experience with C#, .NET Core, .NET 5/6, or .NET Framework Solid experience with MSSQL Basic knowledge of Kubernetes and Docker Experience in implementing REST APIs Proficiency in writing unit tests with xUnit and xRay Experience with message queuing systems (e.g., RabbitMQ, Kafka) Knowledge of design patterns and best practices (OOP, SOLID) Familiarity with Agile/Scrum methodologies Proficiency with CI/CD tools Strong problem-solving skills and attention to detail It is a strong plus if you have: (optional) Basic knowledge of COBOL Knowledge of WCF, WinForms Language required for the role: Communicative proficiency in English Communicative proficiency in Polish Eligibility to work in Europe: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Long-term hybrid .NET Developer role for an international Swiss investment bank focused on building and improving digital products and technology services using modern cloud, microservices, and frontend technologies. The position involves full software development lifecycle responsibilities, production support, and collaboration within agile engineering teams. 🗂️ Requirements: Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or related discipline, Strong experience with C# and .NET Core, Experience building frameworks and APIs with .NET 6 or later, Understanding of object-oriented design, Design Patterns, and SOLID principles, Understanding of multi-threading, Experience with Microsoft Azure services, Experience with cloud architecture and engineering, Experience with microservice and event-driven architectures, Experience with messaging platforms, Experience with containers and Kubernetes, Experience with React, Experience with TypeScript or JavaScript, Experience with CSS3 and HTML5, Agile mindset, Experience with Test Driven Development, Knowledge of DevOps practices, Focus on Clean Code and engineering best practices 📃 Skills: C#, .NET, .NETCore, .NET6, Azure, AKS, Containers, WebApps, AzureFunctions, ServiceBus, StorageAccounts, KeyVault, Microservices, EventDriven, Kafka, Kubernetes, React, TypeScript, JavaScript, CSS3, HTML5, TDD, DevOps, SOLID, Multithreading 🏢 Description: We are currently looking for talented and experienced .NET Developer to join a long-term project with a major international Swiss investment bank operating in the financial sector. 📍 Location: Wroclaw or Krakow 🏢 Hybrid model: 3 days per week from the office Responsibilities Design, develop, and improve digital products and technology services for clients and employees Apply a broad range of software engineering practices, from analyzing user needs to automated testing and deployment Ensure quality, security, reliability, and compliance of solutions Build observability into solutions, monitor production health, resolve incidents, and remediate root causes Understand and advocate for client needs Share knowledge with colleagues, support hiring, and contribute to engineering culture and internal communities Education Bachelor’s and/or Master’s degree in Computer Science, Computer Engineering, or related technical discipline Backend / .NET Strong experience with C# and .NET Core Experience developing frameworks and APIs using .NET 6 or later Understanding of object-oriented design, Design Patterns, and SOLID principles Understanding of multi-threading Cloud & Infrastructure Experience with Microsoft Azure services: AKS Containers Web Apps Azure Functions Service Bus Storage Accounts Key Vault Experience with Cloud architecture and engineering, ideally Azure Architecture Experience with: Microservice architecture Event-Driven architecture Service/Micro-Service architectures Loosely coupled systems Reusable components Messaging & Containers Experience with messaging platforms, ideally Kafka Experience with Containers, ideally Kubernetes Frontend Experience with React Experience with TypeScript / JavaScript Experience with CSS3 and HTML5 Engineering Practices Agile mindset Test Driven Development (TDD) DevOps practices Focus on Clean Code and engineering best practices Benefits ✅ Stable long-term cooperation with opportunity for extension Opportunity to work with modern technologies in an international environment Professional growth and continuous development opportunities Participation in challenging and impactful projects 📩 If you’re interested and meet the qualifications, please send your CV at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Long-term hybrid opportunity for an experienced .NET Developer to work on digital products and technology services for a major international investment bank. The role involves backend and frontend development, cloud-based architecture on Azure, and building scalable, secure microservices-based solutions. You will contribute across the full software development lifecycle, from design to deployment and production support. 🗂️ Requirements: Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or related field, Strong experience with C# and .NET Core, .NET 6 or later experience, Experience building frameworks and APIs, Knowledge of object-oriented design, Design Patterns, SOLID, Understanding of multithreading, Experience with Microsoft Azure services, Experience with microservices architecture, Experience with event-driven architecture, Experience with messaging platforms, Experience with containers, Experience with React, Experience with TypeScript or JavaScript, Experience with CSS3 and HTML5, Agile mindset, Experience with Test Driven Development, Knowledge of DevOps practices, Focus on Clean Code principles 📃 Skills: C#, .NET, .NET6, API, OOP, SOLID, Multithreading, Azure, AKS, Containers, WebApps, AzureFunctions, ServiceBus, StorageAccounts, KeyVault, Microservices, EventDriven, Kafka, Kubernetes, React, TypeScript, JavaScript, CSS3, HTML5, TDD, DevOps 🏢 Description: We are currently looking for talented and experienced .NET Developer to join a long-term project with a major international Swiss investment bank operating in the financial sector. 📍 Location: Wroclaw or Krakow 🏢 Hybrid model: 3 days per week from the office Responsibilities Design, develop, and improve digital products and technology services for clients and employees Apply a broad range of software engineering practices, from analyzing user needs to automated testing and deployment Ensure quality, security, reliability, and compliance of solutions Build observability into solutions, monitor production health, resolve incidents, and remediate root causes Understand and advocate for client needs Share knowledge with colleagues, support hiring, and contribute to engineering culture and internal communities Requirements Education Bachelor’s and/or Master’s degree in Computer Science, Computer Engineering, or related technical discipline Backend / .NET Strong experience with C# and .NET Core Experience developing frameworks and APIs using .NET 6 or later Understanding of object-oriented design, Design Patterns, and SOLID principles Understanding of multi-threading Cloud & Infrastructure Experience with Microsoft Azure services: AKS Containers Web Apps Azure Functions Service Bus Storage Accounts Key Vault Experience with Cloud architecture and engineering, ideally Azure Architecture Experience with: Microservice architecture Event-Driven architecture Service/Micro-Service architectures Loosely coupled systems Reusable components Messaging & Containers Experience with messaging platforms, ideally Kafka Experience with Containers, ideally Kubernetes Frontend Experience with React Experience with TypeScript / JavaScript Experience with CSS3 and HTML5 Engineering Practices Agile mindset Test Driven Development (TDD) DevOps practices Focus on Clean Code and engineering best practices Benefits ✅ Stable long-term cooperation with opportunity for extension Opportunity to work with modern technologies in an international environment Professional growth and continuous development opportunities Participation in challenging and impactful projects 📩 If you’re interested and meet the qualifications, please send your CV at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: The offer is for a Senior .NET Developer with 5+ years of experience to design, develop, and maintain scalable backend applications using modern .NET technologies. The role focuses on building high-quality APIs, contributing to architectural decisions, and ensuring application reliability in cloud-based environments. It involves close collaboration with cross-functional teams and strong engagement in testing, CI/CD, and production support. 🗂️ Requirements: Minimum 5 years of experience with .NET development, Strong experience with C# and .NET Core, Solid understanding of REST APIs, Experience with Entity Framework Core, Strong knowledge of SQL, Experience with cloud platforms (Azure or AWS), Experience with CI/CD pipelines, Experience with Git version control, Experience with unit and integration testing, Experience with message broker systems, Familiarity with agile development practices 📃 Skills: C#, .NET, .NETCore, REST, EntityFramework, SQL, Azure, AWS, CI/CD, Git, UnitTesting, IntegrationTesting, MessageBroker, Angular, Docker, Kubernetes, Microservices 🏢 Description: Summary: We’re looking for a highly skilled .NET Developer with a minimum of 5 years of experience. This role focuses on solving complex problems, building high-quality software, and contributing to a collaborative engineering culture. The candidate should be passionate about clean architecture, modern .NET development, and delivering impactful solutions. Responsibilities: Analyze, design, develop, and maintain applications using .NET / .NET Core. Build scalable backend services (APIs). Collaborate with cross-functional teams (Business, Dev, Infra, etc.). Participate in code reviews to elevate engineering standards. Contribute to architectural decisions and technical roadmaps. Provide business support and monitor applications (level 2 support, incident resolution, and troubleshooting). Key Requirements: Strong experience with C# and .NET Core. Solid understanding of REST APIs, Entity Framework Core, and SQL. Familiarity with cloud platforms (Azure or AWS). Experience with CI/CD pipelines and version control (Git). Strong testing culture: unit tests, integration tests, and production validation. Familiarity with agile development practices. A mindset focused on quality, performance, and maintainability. Experience with a message broker. Nice to Have: Knowledge of microservices architecture. Experience with front-end frameworks (Angular). Background in distributed systems or high-availability environments. Knowledge of Docker & Kubernetes. Experience with Azure functions. Other Details: This position allows for flexibility and may accommodate remote work arrangements. Candidates should be prepared for collaborative team engagements with a focus on delivering high-quality software solutions.