.Net Engineer

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

If you are a job seeker with a disability and require a reasonable accommodation to apply for one of our jobs, you will find the contact information to request the appropriate accommodation by visiting the following our Accessibility Accomodation for Applicants page.

• Posted on October 13, 2026

Locations

Showing 1 location

Tampa, FL 33607, USA

• Hybrid
• IT
• Full-Time
• Requisition #: SOFTW001519

Description

We are seeking a skilled and motivated Software Engineer (.NET) to join our development team. The ideal candidate will be responsible for full feature development and minor enhancements, working within the application engineering team. This role requires designing, developing, testing, and maintaining high-quality software solutions using the Microsoft .NET framework, with opportunities to mentor junior engineers. The position demands strong problem-solving skills, attention to detail, and the ability to work collaboratively across cross-functional teams.

Key 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

Required

• 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

Preferred

• Microsoft Azure cloud platform experience and certification
• Experience with advanced React development and component-based architecture (Bit.dev)
• Familiarity with CI/CD pipelines, DevOps practices, and Azure DevOps
• Experience with Entity Framework Core, Dapper, or other ORM tools
• Knowledge of microservices architecture and containerization (Docker, Kubernetes)
• Experience with Auth0 authentication and authorization patternsUnderstanding of financial technology domain and payment processing systems
• Experience with message queuing systems (Apache Kafka)
• Knowledge of monitoring and observability tools (Application Insights, Grafana)
• Microsoft certifications (Azure Developer Associate, .NET certifications)
• Experience with vendor integration and third-party API management

Soft Skills

• Strong collaboration and teamwork abilities across cross-functional teams
• Clear technical communication skills with both technical and non-technical stakeholders
• Conflict resolution capabilities within team environments
• Mentoring and knowledge sharing skills with junior team members
• Adaptability to changing requirements and evolving business needs
• Customer focus and quality mindset in solution delivery
• Cross-functional relationship building and stakeholder management
• Strong problem-solving and analytical abilities with systematic approaches
• Self-motivated with passion for continuous learning and professional development
• Ability to manage multiple tasks and projects efficiently with competing priorities
• Proactive approach in taking end-to-end responsibility for features and modules
• Effectiveness in distributed or remote team environments
• Direct communication with vendor support teams for technical issues and integration challenges
• Active participation in vendor evaluation sessions and technology assessment processes
• Provide technical feedback on vendor tools, services, and API implementations
• Document vendor-related processes, integration procedures, and technical specifications
• Support procurement decisions with technical recommendations and risk assessments

About Fintech

For over 35 years, Fintech LLC has redefined how over 1.1 million B2B relationships buy and sell goods and services in the retail, hospitality, and alcohol industries. This integrated platform centralizes invoice data and payments, POS and delivery data, product and cost compliance, price book management, and industry market data using AI, seamless integration capabilities, and proprietary automation technology.

Fintech is a Drug-Free Workplace. Fintech is an Equal Opportunity Employer that does not discriminate on the basis of actual or perceived race, color, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth and pregnancy-related conditions), gender identity or expression (including transgender status), sexual orientation, marital status, military service and veteran status, physical or mental disability, genetic information, or any other characteristic protected by applicable federal, state, or local laws and ordinances. Fintech’s management team is dedicated to this policy with respect to recruitment, hiring, placement, promotion, transfer, training, compensation, benefits, employeeactivities, access to facilities and programs and general treatment during employment.

Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.