Junior Full-Stack Software Engineer

Flexi Software is hiring a junior full-stack engineer to build and deliver its next-generation platform for financial institutions. The role spans C# services, modern web front ends, SQL Server, AI-assisted development, and limited work on legacy Windows desktop solutions.

What you'll do:

• Build, test, and deliver full-stack features for Flexi's next-generation platform, working across C# back-end services and APIs and Node.js, React, and Next.js front ends
• Write clean, maintainable, well-tested code, including unit and integration tests, as part of every change you ship
• Work with Microsoft SQL Server: write queries and stored procedures, design tables, and learn to tune for application and database performance
• Use AI coding assistants and agentic workflows daily across design, coding, code review, testing, and documentation, and learn to direct them effectively
• Review and verify AI-generated code with care, owning correctness, security, and quality for everything you commit
• Take part in code reviews, both giving and receiving feedback, to build skill and uphold team standards
• Contribute to CI/CD pipelines, automated testing, and release practices so changes move to production safely and often
• Build with the security, reliability, and data integrity expected of enterprise financial software, including input validation, error handling, and audit-friendly design
• Investigate and resolve defects, tracing issues across the front end, services, and database
• Write and maintain technical documentation, including API documentation and developer notes
• Partner with Product, QA, and senior engineers to turn requirements into shipped customer-facing software
• Contribute on a limited basis to Flexi's legacy Windows desktop solutions in C++ and C#, while next-generation web platform delivery remains your primary focus, and learn how the new platform integrates with these existing products and our DevOps environment

What they're looking for:

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field — or equivalent practical experience, such as a bootcamp, internship, or substantial project work
• 0–3 years of professional software development experience; internships and strong personal or academic projects count
• Working knowledge of C# and the .NET platform, including object-oriented programming fundamentals, and a willingness to work in legacy C++ and C# Windows desktop code on a limited basis
• Working knowledge of JavaScript or TypeScript, HTML, and CSS, with hands-on experience building applications in React
• Experience or coursework with Node.js and Next.js, including routing, server-side rendering, and API routes
• Working knowledge of relational databases and SQL, with exposure to Microsoft SQL Server preferred
• Familiarity with building and consuming REST APIs
• Experience with Git and a collaborative, pull-request-based workflow
• Active, hands-on use of AI coding assistants and agentic tools in your own work, with a clear sense of when to trust their output and when to question it
• A solid grasp of software testing fundamentals, including writing unit tests
• Strong problem-solving skills and attention to detail
• Clear written and verbal communication skills, and the ability to ask good questions and take feedback well

Benefits:

• Paid holidays and paid time off
• 401(k) Plan with company match
• Health and dental insurance
• Life and disability insurance
• Vision discount plan
• Hybrid work arrangement (Atlanta, GA area only)
• Mentorship, pairing, and regular feedback