.Net API Developer

About This Job

Key Responsibilities

Production Support & Incident Management (Critical Responsibility)

• Actively participate in ITN / production incident bridge calls and provide real-time technical troubleshooting
• Take end-to-end ownership of production issues impacting APIs and backend services
• Perform rapid debugging, issue isolation, and hotfix implementation during incidents
• Drive root cause analysis (RCA) and implement permanent fixes to prevent recurrence
• Collaborate with cross-functional teams (QA, DevOps, Infra) to restore service within SLA timelines
• Monitor logs, metrics, and tracing tools to quickly identify production failures
• Ensure post-incident documentation, learnings, and preventive measures are implemented

Backend & API Development

• Design, develop, and maintainRESTful APIs and microservices using .NET Core / ASP.NET Core 
• Build scalable backend services supportinghigh-volume transactions and financial workflows
• Implement robust business logic forpayments, accounts, transactions, and integrations

Architecture & System Design

• Lead backend architecture design focusing onscalability, security, and performance
• Define API contracts, service interfaces, and data models
• Designdistributed systems, event-driven or microservices architectures

Financial Domain & Compliance

• Ensure systems comply withfinancial regulations, security standards, and audit requirements
• Implementsecure transaction processing and data protection strategies
• Work with domain teams onrisk, reporting, settlement, or payment systems

Database & Data Management

• Design and optimizerelational and NoSQL databases (SQL Server, PostgreSQL, MongoDB)
• Ensure data integrity, consistency, and performance tuning

Integration & Collaboration

• Integrate with external systems (e.g., payment gateways, banking APIs, third-party services)
• Collaborate with architects, product teams, QA, and DevOps teams

Code Quality & Leadership

• Conductcode reviews, mentoring, and enforce best practices
• Drivetechnical design discussions and solution architecture
• Participate in Agile/Scrum processes

Performance & Operations

• Optimize systems forlow latency, high availability, and reliability
• Troubleshoot production issues and perform root-cause analysis

Required Qualifications

Experience

• 8–12+ years of experience in backend development
• Strong experience infinancial services / banking / fintech domain (mandatory)
• Proven experience buildingenterprise-grade applications and APIs

Technical Skills

• Strong proficiency inC#, .NET Core / .NET 8+ / ASP.NET Core
• Hands-on experience withREST APIs, Web APIs, and microservices
• Solid knowledge ofSQL Server and database design
• Experience withEntity Framework / ORM tools
• Understanding ofdistributed systems, event-driven architecture

Architecture & Cloud

• Experience withcloud platforms (Azure/AWS/GCP)
• Familiarity withDocker, Kubernetes, CI/CD pipelines
• Knowledge ofsystem design and scalability patterns

Security & Compliance

• Strong understanding of:
  • API security (OAuth2, JWT, OIDC)
  • Data encryption and protection
  • Financial compliance standards (PCI, SOX, etc.)

Other Skills

• Strong analytical, problem-solving, and debugging skills
• Excellent communication and stakeholder management
• Experience mentoring and leading engineers

Preferred Qualifications

• Experience withlow-latency trading or real-time systems
• Knowledge ofpayment systems (ACH, RTP, cards, SWIFT, etc.)
• Experience withevent streaming (Kafka, RabbitMQ)
• Exposure toDomain-Driven Design (DDD)

Education

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field

What Success Looks Like

• Deliveringsecure, scalable APIs powering financial transactions
• Maintaininghigh system uptime and performance under load
• Drivingarchitecture modernization and microservices adoption
• Enablingcompliant and reliable financial integrations

Nice-to-Have (Based on Your Context – Optional Add-on)

If you plan to tailor this forcore banking / enterprise services (like your environment at Axos), you can explicitly add:

• Experience withidentity platforms, payments systems, or core banking integrations
• Familiarity withevent-driven enterprise platforms (Redis, RabbitMQ)
• Exposure toAPI gateways (Apigee).

About Axos

Born digital-first, Axos delivers financial tools and services that allow individuals, small businesses, and companies to access and manage their money how, when, and where they want. We’re a diverse team of dynamic, insightful, and independent innovators who are excited to provide technology-driven solutions that offer unbeatable value to our customers.

Axos Financial is our holding company and is publicly traded on the New York Stock Exchange under the symbol "AX" (NYSE: AX).

Learn More about working at Axos Business Center

Pre-Employment Background Check, Medical, and Drug Test:

All offers are contingent upon the candidate successfully passing a credit check, criminal background check, and pre-employment medical and drug screening. 

Equal Employment Opportunity:

Axos is an Equal Opportunity employer. We are committed to providing equal employment opportunities to all employees and applicants without regard to race, religious creed, color, sex (including pregnancy, breast feeding and related medical conditions), gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship status, military and veteran status, marital status, age, protected medical condition, genetic information, physical disability, mental disability, or any other protected status in accordance with all applicable federal, state, and local laws.

Job Functions and Work Environment:

While performing the duties of this position, the employee is required to sit for extended periods of time. Manual dexterity and coordination are required while operating standard office equipment such as computer keyboard and mouse, calculator, telephone, copiers, etc.

The work environment characteristics described here are representative of those an employee may encounter while performing the essential functions of this position. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this position.