Senior Net Software Developer Jobs in Spring Valley, CA

**This is a fully on-site role. Hybrid/remote work is not available at this time. 
**We are unable to sponsor or take over sponsorship of an employment Visa at this time. 

RIVO is seeking an experienced Senior Software Engineer to help accelerate the evolution of our proprietary Loan Management System (LMS), the platform that powers our business and supports hundreds of loans processed every day. 

We're looking for a builder. Someone who can quickly understand a complex production environment, identify opportunities for improvement, and help modernize the architecture, engineering practices, and development standards that will support our next phase of growth. 

As a Senior Software Engineer, you'll help advance a mission-critical fintech platform while partnering closely with Product, QA, DevOps, and Engineering teams to deliver scalable, reliable, and maintainable solutions. Success in this role requires strong technical depth, sound engineering judgment, and a collaborative approach to solving complex problems. 

If you're energized by ownership, attracted to technical challenges, and motivated by the opportunity to make a lasting impact on a business-critical platform, we'd love to hear from you!

What We Look For 

• Strong problem-solving and analytical skills. 
• Ability to challenge ideas while remaining collaborative and solution-oriented. 
• Comfortable operating in environments undergoing technical transformation. 
• Ability to balance immediate business priorities with long-term engineering goals. 
• Excellent verbal and written communication skills. 
• A continuous improvement mindset and passion for engineering excellence. 

What You'll Do 

Application Architecture & Design: 

• Design and implement scalable solutions that support the continued evolution of our proprietary LMS. 
• Modernize existing application architecture and engineering patterns where appropriate. 
• Identify opportunities to improve system performance, reliability, and maintainability. 
• Partner with technology leadership to establish development standards and best practices. 
• Contribute to long-term technical strategy and architectural direction. 

Software Development & Modernization: 

• Design, develop, and deploy high-quality software across the application stack. 
• Build new capabilities that support business growth and operational efficiency. 
• Refactor and enhance existing functionality to improve scalability and sustainability. 
• Develop secure, maintainable, and well-tested code. 
• Troubleshoot and resolve complex technical issues across production and development environments. 

Platform Reliability & Engineering Excellence: 

• Participate in code reviews and drive engineering quality standards. 
• Improve application monitoring, testing, and deployment practices. 
• Support CI/CD and automation initiatives. 
• Help reduce technical debt while improving overall platform health. 

Cross-Functional Collaboration: 

• Partner with Product, QA, DevOps, and Engineering teams to deliver high-impact solutions. 
• Contribute technical expertise during planning, estimation, and design discussions. 
• Share knowledge and mentor engineers through collaboration and code reviews. 
• Promote a culture of accountability, continuous learning, and engineering excellence. 
• Serve as a trusted technical resource across the organization. 

Must Have Qualifications 

Software Architecture & Engineering Expertise: 

• 8+ years of professional software development experience. 
• 5+ years of experience designing and building enterprise-scale applications. 
• Experience modernizing legacy or home-grown software platforms. 
• Experience developing and supporting high-availability production systems. 
• Experience with microservices architecture, distributed systems, and event-driven design. 

Full-Stack Development & Engineering Practices: 

Strong experience with: 

• .NET 
• C# 
• Microsoft SQL Server 
• React/Angular - React preferred 
• TypeScript 
• REST APIs 
• Azure Cloud Services 

Experience with: 

• AI-Assisted Development 
• Entity Framework 
• Event-Driven & Microservice Architecture 
• Application Monitoring and Observability 
• Agile Development Methodologies 
• CI/CD Pipelines 

Company Benefits 

• Optimal Work-Life Balance: Benefit from a schedule with no evening or weekend work - enjoy your weekends for relaxation and personal time 
• Childcare & Family Support: Receive up to $5,000 annually in childcare reimbursement to ease the balancing act of work and family & Exclusive access to comprehensive fertility treatment coverage to financially support your family-building journey
• Stay Fit for Free: Join our FREE weekly group workouts and keep your health and energy levels at their peak 
• Company Events & Social Hours: Enjoy regular happy hours and company-wide events to celebrate achievements and build community with fellow employees 
• Padres Tickets: Catch a Padres game with exclusive access to season long raffle drawings in the RIVO ticket section. Go Padres! 
• Daily Perks: Savor FREE coffee, energy drinks, and snacks - fueling your productivity and satisfaction! 
• Parking & Commute Made Easy: Say goodbye to commuting hassles and high gas prices - enjoy a company-paid parking or MTS pass 
• Dedication Incentives: Opportunity to earn more money with our perfect attendance incentive - your dedication and reliability deserve recognition 
• Generous Time Off: Recharge and live your best life with company paid holidays and PTO each year  
• Comprehensive Health Coverage: Benefit from medical, dental, and vision plans with a 70/30 cost share-because your well-being is our priority 
• Secure Your Future: Take advantage of our 401(k) plan with employer matching to invest in your future with confidence

We offer a comprehensive compensation and benefits package where you will be rewarded based on your performance and recognized for the value you bring to the business. A reasonable estimate of the salary range for this job is $160,000.00 to $220,000.00. Idividual salaries within those ranges takes into account the wide range of factors that are considered in making compensation decisions including but not limited to education; experience and training; licensure and certifications; knowledge and skill sets; and other business and organizational needs.

RIVO Holdings, LLC is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, citizenship status, disability, age (40 years old or older) and genetic information (including family medical history), past or present military or veteran status, or any other characteristic protected by applicable law. 

RIVO Holdings, LLC is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, citizenship status, disability, age (40 years old or older) and genetic information (including family medical history), past or present military or veteran status, or any other characteristic protected by applicable law.