Mid/Senior Full Stack Software Engineer – .NET, FinTech & AI Development

Location: Jacksonville, FL; other locations: New York, NY and Dallas, TX, United States.

Company

SS&C provides AI-powered technology and services for financial services and healthcare organizations, supporting more than 23,000 organizations worldwide.

What you will do

• Design, develop, test, maintain, troubleshoot, and support enterprise applications for a Trust accounting and financial technology platform.
• Build backend services and business logic with .NET/.NET Core and C#, plus user-facing functionality with JavaScript, TypeScript, HTML, CSS, and related web technologies.
• Design, develop, consume, troubleshoot, and optimize REST APIs, web services, SQL Server solutions, stored procedures, queries, and database objects.
• Modernize legacy components toward web, API, microservices, and service-based architectures, including work with existing C++ components.
• Design and integrate AI-enabled capabilities using Generative AI, LLMs, prompt engineering, structured outputs, RAG, embeddings, vector search, and tool/function calling.
• Collaborate with analysts, product owners, QA engineers, architects, developers, and business stakeholders throughout the Agile SDLC; perform root-cause analysis, code reviews, and technical mentoring.

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related discipline, or equivalent professional experience.
• Approximately 5+ years of professional software development experience, with consideration for equivalent demonstrated experience and technical capability.
• Strong experience with Microsoft .NET/.NET Core, C#, Microsoft SQL Server, T-SQL, stored procedures, complex queries, joins, database objects, and data access patterns.
• Experience troubleshooting and optimizing SQL Server performance, including execution plans, indexing, locking, blocking, concurrency, transactions, and data integrity.
• Experience developing full-stack enterprise web applications using JavaScript, HTML, CSS, REST APIs, and web services.
• Strong understanding of object-oriented programming, software design patterns, application architecture, secure development, authentication, authorization, and protection of sensitive financial and client data.
• Experience with source control and modern development practices, preferably Git/GitHub, and experience working in an Agile/Scrum environment.
• Strong analytical, troubleshooting, problem-solving, and communication skills with technical and non-technical stakeholders.
• Ability to understand complex business requirements, workflows, business rules, and financial technology impacts, and translate them into technical designs and software solutions.
• Practical experience or demonstrated knowledge of Generative AI/LLM applications, enterprise AI or LLM APIs, prompt engineering, RAG, AI agents, tool/function calling, AI security, responsible AI, and governance in regulated or financial-services environments.

Nice to have

• Vue.js 3, TypeScript, Composition API, reusable components, state management, and modern frontend build tooling.
• C++, Microsoft Azure, Azure API Management, RabbitMQ, event-driven architectures, microservices, and distributed applications.
• OAuth, JWT, SSO, Microsoft Entra ID, CI/CD pipelines, and GitHub-based development workflows.
• Experience modernizing large enterprise or legacy applications and working with FinTech, Trust accounting, wealth management, banking, custody, payments, high-value transactions, or regulated client data.

Culture & Benefits

• Work in an Agile environment across technology and business domains with business analysts, product owners, QA engineers, architects, developers, and stakeholders.
• Medical, dental, and vision coverage, a 401(k) plan with company match, paid time off, holidays, and parental leave.
• Professional development reimbursement opportunity.
• Applications are accepted on an ongoing basis until the position is filled.
• Unsolicited resumes from headhunters, recruitment agencies, and fee-based recruitment services are not accepted unless specifically requested by SS&C.