Senior .NET Developer

1 dzień temu

Kraków, Lesser Poland StoneX Group Inc. Pełny etat

Overview
Permanent, full-time, hybrid

Connecting clients to markets – and talent to opportunity.

With 4,300 employees and over 400,000 retail and institutional clients from more than 80 offices spread across five continents, we're a Fortune-100, Nasdaq-listed provider, connecting clients to the global markets – focusing on innovation, human connection, and providing world-class products and services to all types of investors.

At StoneX, we offer you the opportunity to be part of an institutional-grade financial services network that connects companies, organizations, and investors to the global markets ecosystem. As a team member, you'll benefit from our unique blend of digital platforms, comprehensive clearing and execution services, personalized high-touch support, and deep industry expertise. Elevate your career with us and make a significant impact in the world of global finance.

Business Segment Overview:
Engage in a deep variety of business-critical activities that keep our company running efficiently. From strategic marketing and financial management to human resources and operational oversight, you'll have the opportunity to optimize processes and implement game-changing policies.

Technology Ecosystem. You'll Work With :

  • Languages & Frameworks: C#, .NET Core, ASP.NET Core
  • Architecture: Microservices, Event-driven (Kafka, AMQ), CQRS
  • Cloud & Infra: Azure, Kubernetes, Docker, Rancher, TeamCity, Octopus, Grafana, Grafana
  • Databases: MS SQL Server (T-SQL), NoSQL, Postgres
  • Tooling: GitHub , Visual Studio/Rider, ReSharper
  • AI Tools: MS Copilot, GitHub Copilot, ChatGPT

Responsibilities
Position Purpose:
This role is ideal for an experienced .NET engineer who thrives on ownership, having knowledge and experience in using .NET ecosystem, knowing the newest trends, be up to date with the newest .NET technology, and wants to work on robust APIs that power real trading - including authentication, pricing, order handling , and more, high loads, low latency systems.

You'll be an essential part of a highly skilled product team, collaborating with other engineers, tech leads, and QAs to build scalable, high-performing systems used by thousands of clients.

Primary duties will include:

  • Design and develop low-latency solutions using the latest .NET technologies. Build performant, scalable backend. services from scratch, or improve existing ones.
  • Tackle live production challenges.
  • Participate in code reviews, design sessions, and agile ceremonies.
  • Work closely with team leads and stakeholders and other teams across company.
  • Continuously explore and evaluate new technologies that could enhance the platform.

Qualifications
To land this role you will need:

  • 3–5+ years of experience in backend .NET/C# development.
  • Solid grasp of .NET Core , APIs ( high-load - a plus ) multithreading and performance.
  • Experience with messaging systems like ActiveMQ, Kafka.
  • Hands on experience with Kubernetes.
  • Experience with financial systems or real-time data ? Big bonus.
  • Good SQL knowledge; NoSQL is a plus.
  • Strong communication skills and the ability to collaborate across teams.
  • A growth mindset and eagerness to stay current with industry trends.

Education / Certification Requirements:

  • Bachelor's degree in Computer Science, Software Engineering, or equivalent experience

Working environment:

  • Hybrid - private parking for employees.
  • FTE (UoP).

  • Senior .NET Developer

    1 dzień temu

    Kraków, Lesser Poland FDM Group Pełny etat

    About the roleFDM is a global technology consultancy partnering with leading organisations to deliver cutting-edge IT solutions. We are looking for an experienced Senior .NET Developer to join our client in the financial sector. This is an excellent opportunity to design and develop secure, high-performance applications that support key operations in a...

  • NET Developer

    3 dni temu

    Kraków, Lesser Poland ClearCourse Pełny etat

    .NET Software Developer (Full-Stack | React | .NET 6+) Kraków (Hybrid) | Full-time | 3+ years experienceWe're looking for a .NET Developer to join our Agile engineering team and contribute across the GDS product suite — building clean, maintainable, and scalable applications that make an impact.You'll be hands-on across the full SDLC: designing,...

  • Senior .NET Developer

    3 dni temu

    Kraków, Lesser Poland Sigma Software Pełny etat

    Company Description Looking to take your .NET expertise to the next level while working on high-impact FinTech solutions? This role offers the chance to contribute to scalable, cloud-native systems that empower thousands of businesses worldwide.We're seeking a Senior .NET Developer to join our team, collaborating with talented engineers, product managers,...

  • Senior .NET Developer

    3 dni temu

    Kraków, Lesser Poland Sigma Software Pełny etat

    Company Description Looking to take your .NET expertise to the next level while working on high-impact FinTech solutions? This role offers the chance to contribute to scalable, cloud-native systems that empower thousands of businesses worldwide.We're seeking a Senior .NET Developer to join our team, collaborating with talented engineers, product managers,...

  • Senior .NET Developer

    3 dni temu

    Kraków, Lesser Poland Sigma Software Group Pełny etat

    Looking to take your .NET expertise to the next level while working on high-impact FinTech solutions? This role offers the chance to contribute to scalable, cloud-native systems that empower thousands of businesses worldwide.We're seeking aSenior .NET Developerto join our team, collaborating with talented engineers, product managers, and designers to deliver...

  • Senior .NET Developer

    7 dni temu

    Kraków, Lesser Poland NOVA Consulting Group Polska Pełny etat 40 000 zł - 80 000 zł rocznie

    Job description We are looking for Senior Backend .NET Developer passionate about web and e-commerce. With us you will be responsible for designing, implementing, and maintaining the server logic of applications based on the .NET platform (versions 6–9). Your responsibilities:Creating and developing backend components based on the MVC model in .NET and...

  • Senior .NET Developer

    1 tydzień temu

    Kraków, Lesser Poland Axence Pełny etat 60 000 zł - 80 000 zł rocznie

    CześćTu Axence.Mówią o nas, że jesteśmy zespołem niezwykle utalentowanych i zaangażowanych ludzi, którzy na co dzień kształtują przyszłość bezpieczeństwa IT.Tworzymy oprogramowanie, które usprawnia i upraszcza pracę działów IT oraz edukujemy o cyberbezpieczeństwie. Stawiamy na sprawczość, elastyczność i kreatywność – działamy...

  • Senior .NET Developer

    1 dzień temu

    Kraków, Lesser Poland Luxoft Poland Pełny etat

    Project DescriptionOur Client has started a greenfield project to enhance its electronic trading offering with in SCIB Sec Finance. Working closely with the Sec Finance trading business both in London and Spain, the team will deliver on a multiyear strategy to build a cloud-based trading platform. The project is sponsored at high levels with-in the business...

  • Software Developer .NET

    1 tydzień temu

    Kraków, Lesser Poland B2B S.A Pełny etat 50 000 zł - 90 000 zł rocznie

    Zespół .NET dołącza do programu KYC/AML Transformation. Projekty obejmują rozwój modułów w Event Driven Architecture (.NET, SQL Server, OpenShift) oraz integrację z systemami KYC/AML (FS Profile, OneKYC, SCU-AML)Tryb pracy: 6 dni w miesiącu stacjonarnie w biurze Warszawa/KrakówSoftware Developer .NETTwój zakres obowiązkówProjektowanie i rozwój...

  • Net Developer

    7 dni temu

    Kraków, Lesser Poland PCMI Pełny etat 40 000 zł - 80 000 zł rocznie

    *Note: It is required for this role to be in the office 1 day per week.Who we are:PCMI (Policy Claim Management International)is a fast-growing, leading provider of integrated software for Extended Warranty Management and Finance and Insurance (F&I) administration. We are a SaaS company that operates in a fast-paced, entrepreneurial environment. Our 3 teams...