Sr. Software Engineer

At Early Warning, we've powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle®, Paze®, and so much more. As a trusted name in payments, we partner with thousands of institutions to increase access to financial services and protect transactions for hundreds of millions of consumers and small businesses.

Early Warning follows a hybrid work model to allow for a more collaborative working environment.

Candidates responding to this posting must independently possess the eligibility to work in the United States, for any employer, at the date of hire. This position is ineligible for employment Visa sponsorship.

Overall Purpose

The Sr. Software Engineer designs, develops, tests, and maintains software applications and services with a primary focus on the Microsoft .NET technology stack. This position provides technical expertise throughout the software development lifecycle, develops complex software capabilities, supports reliable and secure application delivery, and collaborates with engineering and business partners to translate requirements into scalable technical solutions.

Essential Functions

• Design, develop, document, test, deploy, and maintain software applications and services using C# and the .NET platform.
• Serve as a technical resource on software development projects, providing guidance on application design, development approaches, and engineering best practices.
• Drive activities throughout the software development lifecycle, including requirements analysis, technical design, development, testing, implementation, and production support.
• Develop and maintain APIs, services, and application components using modern .NET development practices.
• Translate business and functional requirements into technical designs and specifications.
• Design solutions that support maintainability, scalability, reliability, and application performance.
• Develop and maintain automated unit and integration tests as part of the software delivery process.
• Participate in code reviews and provide actionable feedback to maintain code quality, security, and engineering standards.
• Troubleshoot complex application defects and production issues, identify root causes, and implement sustainable solutions.
• Support and enhance existing applications while developing new capabilities based on business and customer needs.
• Evaluate technologies, frameworks, and engineering practices for potential implementation and continuous improvement.
• Collaborate with engineers, product partners, and other stakeholders to refine requirements, estimate work, and deliver software capabilities.
• Provide technical guidance and mentorship to Software Engineers and other team members as appropriate.
• Support automated build, deployment, and continuous integration/continuous delivery processes.
• Support the company's commitment to risk management and protecting the integrity and confidentiality of systems and data.

Minimum Qualifications

• Education and experience typically obtained through completion of a bachelor's degree in Computer Science or a related field and/or equivalent relevant education, training, and work experience.
• Typically has 5 years of experience or demonstrated portfolio consistent with experience required of the role.
• Demonstrated software development experience using C# and .NET.
• Experience developing applications or services using modern .NET frameworks, such as .NET and ASP.NET Core.
• Experience designing, developing, and integrating RESTful APIs and web services.
• Working knowledge of SQL and relational database concepts.
• Experience with source code management and collaborative development practices using Git or a comparable source control platform.
• Experience developing automated unit and integration tests.
• Experience troubleshooting complex software issues across application components and environments.
• Understanding of object-oriented design, distributed application architecture, and component-based software design.
• Understanding of asynchronous programming, concurrency, and multithreaded application concepts.
• Experience participating in code reviews and applying secure software development practices.
• Experience with automated build, deployment, or CI/CD processes.
• Understanding of iterative software development and Agile/Lean methodologies.
• Ability to translate business and functional requirements into technical solutions.
• Ability to communicate technical information effectively and collaborate across engineering and business teams.

Preferred Qualifications

• Experience with cloud-based application development and deployment.
• Experience with AWS
• Experience with containerization and orchestration technologies such as Docker and Kubernetes.
• Experience with event-driven or message-based application architectures.
• Experience with test-driven development (TDD) or behavior-driven development (BDD).
• Experience with automated functional, regression, performance, or integration testing frameworks.
• Experience supporting high-volume, distributed, or highly available applications.
• Experience with application monitoring, observability, and production troubleshooting tools.
• Experience modernizing or refactoring legacy .NET applications.
• Additional related education and/or experience.

The above job description is not intended to be an all-inclusive list of duties and standards of the position. Incumbents will follow instructions and perform other related duties as assigned by their supervisor.

Physical Requirements

Working conditions consist of a normal office environment. Work is primarily sedentary and requires extensive use of a computer and involves sitting for periods of approximately four hours. Work may require occasional standing, walking, kneeling and reaching. Must be able to lift 10 pounds occasionally and/or negligible amount of force frequently. Requires visual acuity and dexterity to view, prepare, and manipulate documents and office equipment including personal computers. Requires the ability to communicate with internal and/or external customers.

Employee must be able to perform essential functions and physical requirements of position with or without reasonable accommodation.

The base pay scale for this position in:
Phoenix, AZ in USD per year is: $118,000 - $152,000.

Additionally, candidates are eligible for a discretionary incentive plan and benefits.

This pay scale is subject to change and is not necessarily reflective of actual compensation that may be earned, nor a promise of any specific pay for any specific candidate, which is always dependent on legitimate factors considered at the time of job offer. Early Warning Services takes into consideration a variety of factors when determining a competitive salary offer, including, but not limited to, the job scope, market rates and geographic location of a position, candidate's education, experience, training, and specialized skills or certification(s) in relation to the job requirements and compared with internal equity (peers). The business actively supports and reviews wage equity to ensure that pay decisions are not based on gender, race, national origin, or any other protected classes.

Some of the Ways We Prioritize Your Health and Happiness

• Healthcare Coverage - Competitive medical (PPO/HDHP), dental, and vision plans as well as company contributions to your Health Savings Account (HSA) or pre-tax savings through flexible spending accounts (FSA) for commuting, health & dependent care expenses.
• 401(k) Retirement Plan - Featuring a 100% Company Safe Harbor Match on your first 6% deferral immediately upon eligibility.
• Paid Time Off - Flexible Time Off for Exempt (salaried) employees, as well as generous PTO for Non-Exempt (hourly) employees, plus 11 paid company holidays and a paid volunteer day.
• 12 weeks of Paid Parental Leave
• Maven Family Planning - provides support through your Parenting journey including egg freezing, fertility, adoption, surrogacy, pregnancy, postpartum, early pediatrics, and returning to work.

And SO much more! We continue to enhance our program, so be sure to check our Benefits page here for the latest. Our team can share more during the interview process!

Early Warning Services, LLC ("Early Warning") considers for employment, hires, retains and promotes qualified candidates on the basis of ability, potential, and valid qualifications without regard to race, religious creed, religion, color, sex, sexual orientation, genetic information, gender, gender identity, gender expression, age, national origin, ancestry, citizenship, protected veteran or disability status or any factor prohibited by law, and as such affirms in policy and practice to support and promote equal employment opportunity and affirmative action, in accordance with all applicable federal, state, and municipal laws. The company also prohibits discrimination on other bases such as medical condition, marital status or any other factor that is irrelevant to the performance of our employees.


Early Warning Services LLC is a proud participant in E-Verify, a federal program to help ensure a legal and authorized workforce. As part of our hiring process, we electronically verify the employment eligibility of all new hires through E-Verify. For more information on your rights and responsibilities under E-Verify please visit Home | E-Verify.