Full-Stack .NET Engineer (C#/React) – Hybrid Role

Financial Information Technologies LLC; Tampa (FL); Hybrid; USD 90,000 - 130,000; Full time

Job summary

Fintech LLC is seeking a skilled Software Engineer (.NET) to join our Tampa development team. You will own full feature development, mentor junior engineers, and collaborate across cross-functional teams to design, test, and maintain scalable software using C# and .NET Core.

You will implement RESTful APIs and microservices, integrate Auth0 for security, and work with Oracle, PostgreSQL, and MongoDB. Strong problem-solving, testing, and performance tuning skills are essential, along with

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent professional experience)
• 3-5 years of experience in .NET development (C#, .NET Core, Entity Framework, LINQ)
• Strong proficiency in full-stack development with .NET backend technologies
• Proven experience with RESTful APIs, web services, and microservices architecture
• Solid experience with SQL and NoSQL databases including Oracle, MongoDB, and PostgreSQL
• Strong understanding of object-oriented programming principles and design patterns
• Proficiency in version control systems (Git) and collaborative development workflows
• Experience with automated testing frameworks and test-driven development practices
• Understanding of Agile/Scrum development methodologies and cross-functional team collaboration
• Demonstrated ability to mentor junior developers and share technical knowledge
• Experience with performance optimization techniques and application tuning

Responsibilities

• Lead full feature development and implementation of minor enhancements within assigned feature teams
• Responsible for designing, developing, testing, and maintaining scalable web applications and services using C#, .NET Core, and related Microsoft technologies
• Implement full-stack solutions combining .NET backend services with modern frontend frameworks, particularly React with Bit.dev component system
• Design and implement RESTful API endpoints and microservices architecture for internal and external integrations with focus on performance and scalability
• Work closely with cross-functional teams including product managers, designers, QA, and DevOps to deliver high-quality software solutions aligned with business goals
• Implement comprehensive automated testing strategies including unit tests, integration tests, and end-to-end testing
• Troubleshoot and resolve complex application issues and bugs with systematic debugging approaches
• Provide application support and work collaboratively with customer support teams to resolve customer-reported issues and system problems; Optimize applications for maximum performance, scalability, reliability, and security
• Implement security best practices including Auth0 integration and secure coding standards; Work with databases including Oracle, PostgreSQL and MongoDB
• Participate in code reviews and provide constructive technical feedback to team members
• Maintain comprehensive documentation for code, processes, software architecture, and technical decisions
• Stay current with industry trends, emerging technologies, and best practices in .NET development
• Contribute to vendor management activities including technical evaluations and integration support

Skills

C#

.NET Core

RESTful APIs

React

Bit.dev

LINQ

Microservices

SQL

NoSQL

Entity Framework

Oracle

MongoDB

PostgreSQL

Git

Automated testing

Education

Bachelor's degree in Computer Science or related

Tools

Azure DevOps

Docker

Kubernetes

Auth0

Bit.dev

Azure

Job description

Fintech LLC is seeking a skilled Software Engineer (.NET) to join our Tampa development team. You will own full feature development, mentor junior engineers, and collaborate across cross-functional teams to design, test, and maintain scalable software using C# and .NET Core.

You will implement RESTful APIs and microservices, integrate Auth0 for security, and work with Oracle, PostgreSQL, and MongoDB. Strong problem-solving, testing, and performance tuning skills are essential, along with