Senior Software Engineer
Fastmarkets2 months ago
Sofia, BulgariaSenior
Responsibilities
- Implement technical solutions for new features and product enhancements across the Core platform.
- Develop and maintain authentication, authorization, user entitlement, Admin UI, and customer-facing delivery services.
- Contribute to the OAuth 2.0/OpenID Connect authentication platform using Duende IdentityServer and maintain the user product access entitlements framework.
- Collaborate on Admin UI functionality for managing users, roles, service clients, and reference data.
- Apply sound software engineering design principles to create scalable, flexible, resilient, and secure solutions.
- Use AI-assisted development tools while retaining ownership of design decisions and code quality.
- Maintain existing Core platform software and participate in production support and incident resolution.
- Collaborate with engineering, product, architecture, business analysis, and cross-squad teams.
Requirements
- Strong experience with .NET and C#, ideally .NET 8 or later.
- Solid understanding of OAuth 2.0, OpenID Connect, authentication and authorization protocols, and identity management.
- Strong understanding of object-oriented programming, concurrency, distributed computing, and cloud computing concepts.
- Experience building and maintaining RESTful APIs and service-oriented architectures.
- Experience with Angular or comparable modern frontend frameworks is desirable.
- Familiarity with Azure cloud services such as Service Fabric, AKS, App Configuration, and Blob Storage.
- Experience with unit testing, continuous integration/deployment, and test automation.
- Familiarity with messaging technologies such as Azure Service Bus.
- Experience with distributed systems and microservices architecture.
- Experience using AI coding tools such as GitHub Copilot or Claude Code in day-to-day development.
- Strong written and verbal English communication skills.
- Ability to collaborate across multiple teams and geographies and work flexibly in a role balancing feature delivery with production support.
Benefits
- Fastmarkets Rewards provides core benefits and a flexible allowance that can be tailored to lifestyle, wellbeing, and financial priorities.
- Benefits vary by country and role for the global team.
- The company provides an inclusive workplace and interview accommodations where needed.
About Fastmarkets
Fastmarkets is a cross-commodity price reporting agency and market intelligence provider for metals, mining, forest products, agriculture, and energy transition markets. It sells benchmark prices, forecasts, analytics, and news via subscriptions and data feeds, and runs industry events. Founded in 1882 and headquartered in London, it is privately held by Epiris and incorporates legacy brands such as Metal Bulletin, RISI, and American Metal Market.