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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # NET Software Engineer - **Company:** FinTech LLC - **Location:** Tampa, FL, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Application Programming Interfaces (APIs), Artificial Intelligence, Code Generation, Cyber Security, Databases, Data Recovery, Database Development, Software Debugging, PostgreSQL, MongoDB, MySQL, Oracle (Applications), Open Web Application Security, Requirements Management, Software Engineering, SonarQube, Data Streaming, Systems Integration, Openapi, Datadog, Data Storage Management, Data Storage Technologies, Large Language Models, Grafana, Database Optimization, Druid, Apache Kafka, Api Design, Static Application Security Testing, Web Api, Dynamic Application Security Testing - **Published:** August 26, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-net-software-engineer-tampa-fl--fe674249-7844-4399-a988-4a5f17e68c48 ## About the Role Bachelors degree with 5-7 years of professional software engineering experience, or Masters degree with 3-5 years of experience, with a focus on API development. Required Knowledge and Experience * Strong hands-on experience with .NET. * Solid experience designing, optimizing, and integrating MongoDB, PostgreSQL, MySQL, and OpenSearch with APIs. * Experience with Kafka for messaging/streaming. * Experience designing and documenting APIs with OpenAPI. * Experience debugging and monitoring production systems using Grafana. * Experience identifying and fixing security vulnerabilities using SAST tools (e.g., SonarQube), DAST tools, and OWASP-aligned practices. * Strong communication skills, with proven experience in cross-team coordination. * Experience with requirement analysis, estimation, and deliverable planning. Preferred Qualifications * Experience with Druid or Oracle. * Exposure to AI/LLM-assisted development workflows. * Experience with API catalog/registry or developer portal tooling., API Documentation, Apache Kafka, Application Programming Interface (API), Artificial Intelligence (AI), Automation, Best Practices, Communication Skills, Computer Security, Cross-Functional, Data Recovery, Data Storage, Database Architecture, Database Optimization, Debugging Skills, Documentation, Engineering, Genetics, Identify Issues, Intellectual Property (IP), Machine Tool, Microsoft .NET, Military, MongoDB, MySQL, Oracle, PostgreSQL, Price Book, Product Costing, Production Control, Production Systems, Requirements Management, Software Design, Software Engineering, Team Lead/Manager, Writing Skills ## Description Were looking for a Senior Software Engineer to design, build, and evolve our enterprise data APIs. This role will be actively involved in API architecture and delivery, contribute to a new API catalog and self-service discovery portal, and help drive AI-assisted improvements to how we design, build, and ship APIs. Were looking for someone who combines strong hands-on engineering with the judgment to architect scalable, secure, well-documented APIs - and whos comfortable coordinating across teams to get there. Essential Functions: * Design, build, and maintain APIs using .NET. * Architect API and database solutions for scalability, reliability, and maintainability. * Design, optimize and integrate databases - MongoDB, PostgreSQL, MySQL, and OpenSearch - with APIs for efficient data storage, search, and retrieval. * Use Kafka for event-driven and streaming integration patterns. * Author and maintain API specifications using OpenAPI, ensuring consistent, well-documented API design standards. * Contribute to a formal API catalog and registry - a developer portal where teams can discover available API endpoints through natural-language search. * Help drive AI-assisted improvements to API development and delivery (e.g., AI-assisted code generation, testing, or monitoring). * Debug and troubleshoot production issues using Grafana and related observability tooling. * Identify and remediate security vulnerabilities using SonarQube (SAST), DAST tooling, and OWASP Top 10 best practices. * Participate in requirement analysis, estimation, and deliverable planning in coordination with cross-functional teams. ## Related Videos - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Web APIs you might not know about](https://www.wearedevelopers.com/videos/281-web-apis-you-might-not-know-about) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Project Fugu: Extending the web](https://www.wearedevelopers.com/videos/832-project-fugu-extending-the-web) - [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)