Senior Software Engineer - Full Stack - .NET

Bankjoy; United States; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Stock options

Health coverage USA

Health coverage Canada

Retirement plan

Parental leave

PTO

Job summary

Bankjoy, a fintech startup backed by Y Combinator and Bessemer, is seeking a Senior Software Engineer to help power our digital banking platform. You will build secure, scalable software across front-end and back-end components, collaborating with cross-functional teams to deliver high-quality features.

Ideal candidates have 6+ years in enterprise software with C#/.NET, strong frontend experience (Angular/React), API design, and cloud exposure.

Qualifications

• 6+ years of professional experience in enterprise-level software development with C# and .NET Core.
• 4+ years of front-end development with Angular or React, TypeScript, HTML, and CSS.
• 4+ years of SQL experience, including query optimization, index management, and performance tuning.
• Proven experience in designing scalable APIs and integrating third-party SDKs or platforms.
• Strong knowledge of cloud hosting platforms (e.g., AWS, Azure, GCP) and cloud-native practices.
• A track record of working in high-growth or startup environments, demonstrating adaptability and ownership.
• Exceptional problem-solving skills, communication, and a collaborative mindset.
• Bachelor’s degree in Computer Science, Computer Engineering, or equivalent experience.

Responsibilities

• Lead the implementation of new features and enhancements on existing products, demonstrating ownership and expertise.
• Design, develop, and maintain front-end applications using modern frameworks (e.g., Angular, React) and best practices.
• Architect and build scalable, secure APIs to support new features and products.
• Proactively identify and address technical challenges, refactor code to reduce technical debt, and promote best practices across the team.
• Collaborate with cross-functional teams and third-party vendors to deliver projects on schedule and with high quality.
• Drive test-driven development and implement robust testing strategies across the technology stack.
• Provide technical guidance and mentorship to junior and mid-level engineers.
• Actively participate in Agile ceremonies and contribute to continuous process improvements.

Skills

C# & .NET Core

Frontend: Angular/React

SQL

API design

Cloud hosting

Startup experience

Collaboration

Education

Bachelor's degree

Job description

Who We Are

Bankjoy is a Y Combinator and Bessemer Venture Partner backed FinTech startup. We are changing the way community banks and credit unions do business, enabling them to become tech-driven and digital first. Bankjoy provides modern digital banking products including mobile banking, online banking, online account opening, loan origination, and conversational AI. Our mission is to revolutionize banking tech infrastructure by leading digital transformation at financial institutions — big and small.

The Role

As a Senior Software Engineer within our Digital Banking platform, you will be instrumental in the development and maintenance of robust, secure, and scalable software solutions to power our digital banking platform. You will collaborate closely with cross-functional teams to deliver high-quality software that enhances the online banking experience for our customers while ensuring compliance with regulatory standards.

What You’ll Do

• Lead the implementation of new features and enhancements on existing products, demonstrating ownership and expertise.

• Design, develop, and maintain front-end applications using modern frameworks (e.g., Angular, React) and best practices.

• Architect and build scalable, secure APIs to support new features and products.

• Proactively identify and address technical challenges, refactor code to reduce technical debt, and promote best practices across the team.

• Collaborate with cross-functional teams and third-party vendors to deliver projects on schedule and with high quality.

• Drive test-driven development and implement robust testing strategies across the technology stack.

• Provide technical guidance and mentorship to junior and mid-level engineers.

• Actively participate in Agile ceremonies and contribute to continuous process improvements.

What You Bring

• 6+ years of professional experience in enterprise-level software development with C# and .NET Core, delivering scalable and secure products.

• 4+ years of experience in front-end development with Angular or React, TypeScript, HTML, and CSS.

• 4+ years of SQL experience, including query optimization, index management, and performance tuning.

• Proven experience in designing scalable APIs and integrating third-party SDKs or platforms.

• Strong knowledge of cloud hosting platforms (e.g., AWS, Azure, GCP) and cloud-native practices.

• A track record of working in high-growth or startup environments, demonstrating adaptability and ownership.

• Exceptional problem-solving skills, communication, and a collaborative mindset.

• Bachelor’s degree in Computer Science, Computer Engineering, or equivalent experience.

Preferred Skills

• Experience with transaction processing systems in FinTech domain

• Experience with user access and permission management

• Familiar with banking domain and operations

What You Get

• A fast-paced and collaborative environment

• Competitive compensation

• Stock options at a well-funded startup

• We cover 100% of medical, dental, and vision premiums for individuals on our base plan, with significant contributions toward all other plan options (USA).

• We cover 100% of extended medical, dental, and vision premiums for you and your family under our single, comprehensive plan (Canada).

• Retirement plan with 4% company matching

• 8 weeks paid parental leave for birthing parents, 4 weeks for non-birthing

• 3-5 weeks PTO depending on tenure

• 5 health days

• 15 holidays

• End of year shutdown

• Performance-based bonuses

• Remote first culture

Equal Employment Opportunities at Bankjoy

Bankjoy is committed to hiring talented and qualified individuals with diverse backgrounds for all of its tech, non-tech, and leadership roles. Bankjoy provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age or disability.

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