Sr. Software Developer - .NET

Axos Bank • San Diego, CA

4d • Onsite

About The Position

Axos Bank is looking for an experienced, product-oriented Sr. Software Developer - to join our software engineering team and help ensure that the experience of our clients is second to none. This development group is focused on building the next generation of our online banking application. This role will utilize full-stack AI development; designing interactive web applications with either .NET, Java, Angular and/or React, developing web services (REST/SOAP), and integrating with vendor APIs. Our goal is to create a seamless, all-in-one experience for our customers, and provide a platform that gives customers a full, 360 degree view of their financials. This includes everything from banking, investing/trading, wealth management/planning, etc. You will lead a team of developers focused on both building out new capabilities as well as enhancing existing products within the platform. Our roadmap also includes migrating the platform to microservices-based containers running on AWS.

Requirements

• Bachelor's degree in Computer Science or a related field.
• 5+ years of hands-on .NET backend development experience building enterprise-grade services, APIs (REST/SOAP), background jobs, and integrations with third-party/vendor systems.
• Experience in the financial services or banking industry.
• Strong experience designing and implementing distributed systems, microservices, and service-oriented architectures.
• Proficiency with the following technologies: .NET Framework / .NET Core / .NET 8+, C#, SQL Server, Entity Framework, Web API, messaging or eventing systems, Swagger/OpenAPI, and CI/CD pipelines.
• Hands-on experience with AI/LLM-powered backend services, workflows, or developer platforms (e.g., LangChain or similar orchestration frameworks).
• Strong experience with database design, query optimization, transaction management, and performance tuning.
• Solid understanding of authentication, authorization, security best practices, and data protection concepts.
• Strong understanding of Agile methodologies and engineering best practices.
• Ability to work effectively in a fast-paced and dynamic environment, manage multiple priorities independently, and take ownership of backend deliverables.
• Strong understanding of object-oriented design, SOLID principles, and common design patterns.
• Excellent communication skills with the ability to clearly explain backend architectures and technical tradeoffs to non-technical stakeholders.

Nice To Haves

• Experience building cloud-native backend services leveraging managed cloud platforms (e.g., Azure, AWS, or GCP).
• Exposure to low-code / no-code platforms such as OutSystems, particularly for backend integration or service orchestration use cases; prior experience is not mandatory, but a strong willingness to learn and adapt is expected.
• Experience working with cloud-based AI services (e.g., Azure AI Foundry, Azure OpenAI, or Google Vertex AI) from a backend integration perspective.
• Familiarity with observability, logging, monitoring, and alerting platforms for backend systems.
• Experience working with geographically dispersed teams.

Responsibilities

• Designing, developing, and maintaining backend services, APIs, and supporting infrastructure according to changing client and business requirements.
• Advises developers on best practices for backend software development, architecture, and code quality.
• Participating in all phases of the software engineering life cycle, including design, development, testing, deployment, and troubleshooting complex backend systems.
• Participating in sprint planning meetings to review requirements, estimate effort, and define backend implementation tasks.
• Collaborate with business stakeholders to understand challenges and translate requirements into scalable backend and data-oriented technical specifications, including AI-driven solutions.
• Deliver scalable, secure, and production-grade backend and AI-enabled applications on cloud platforms.
• Writing clean, efficient, scalable, and well-documented backend code and services.
• Stay current with the latest advancements in backend architectures, cloud technologies, and AI/ML, and advocate for adopting appropriate tools and patterns.

Benefits

• Medical, Dental, Vision, and Life Insurance
• Paid Sick Leave, 3 weeks’ Vacation, and Holidays (about 11 a year)
• HSA or FSA account and other voluntary benefits
• 401(k) Retirement Saving Plan with Employer Match Program and 529 Savings Plan
• Employee Mortgage Loan Program and free access to an Axos Bank Account with Self-Directed Trading

What This Job Offers

• Job Type: Full-time
• Career Level: Senior