Senior Full-Stack Developer (.NET/React)

AnywareFull-timesenior

EngineeringFullstack Developer

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Overview

Access Softek has been building software for the financial industry for over 30 years. Headquartered in Berkeley, California, we work with hundreds of banks and credit unions across the U.S.,

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EngineeringFullstack Developer

Access Softek has been building software for the financial industry for over 30 years. Headquartered in Berkeley, California, we work with hundreds of banks and credit unions across the U.S., helping them deliver modern digital banking experiences to millions of users.

We are looking for a Senior Full-Stack Software Developer to join our Business Banking & External Payments Team.

This team builds and supports business banking and external payment features used in real financial workflows. Their work includes ACH transfers, checks, bill pay, balance transfer, and business payment tools — the kinds of functionality that combine customer-facing product work with integration-heavy backend logic. The team works in a SAFe environment and is a strong fit for an engineer who likes solving practical full-stack problems in a complex domain.

You will work with React, TypeScript, C#, .NET, SQL Server, and AWS, partnering closely with product managers, QA engineers, and developers in a distributed team. AI tools are also part of the team’s everyday workflow, helping developers move faster with coding, debugging, refactoring, testing, and documentation.

Important: this role requires at least 4 hours of overlap with morning Pacific Time (6–10 AM PST).

Design, build, test, and document solutions across frontend, backend, and database layers

Develop new functionality using TypeScript, React, C#, SQL, and .NET

Modernize legacy functionality and improve the maintainability of existing solutions

Design and document internal and public APIs

Write unit and integration tests and contribute to a high standard of code quality

Follow engineering best practices around code review, version control, CI/CD, and secure development

Take ownership of changes from refinement through deployment and production support

Work closely with product managers, QA engineers, and other developers in a distributed team

Investigate issues, analyze logs and telemetry, and deliver safe, reliable fixes

Contribute to automation across build, test, release, and deployment processes

Share knowledge and help improve team development practices

5+ years of commercial software development experience

Strong hands-on experience with C# and modern .NET / ASP.NET Core

Strong experience with TypeScript and React or another modern JavaScript framework

Good knowledge of HTML, CSS, SQL, and MS SQL Server

Experience building and supporting production web applications end-to-end

Experience with API design, implementation, and troubleshooting

Experience writing and maintaining unit and integration tests

Understanding of CI/CD pipelines, code review practices, and automated quality controls

Experience working with both legacy systems and modern service-based architectures

Understanding of web security fundamentals and secure coding practices

Practical experience with AI-assisted development tools such as GitHub Copilot, Cursor, JetBrains AI, Claude, or similar tools, or strong readiness to adopt them quickly

Ability to critically evaluate AI-generated output and maintain ownership of technical decisions and delivered code

Good communication skills and Intermediate+ English

Experience with AWS cloud services
Experience with Docker, Kubernetes, or serverless architectures
Experience with microservices and distributed systems
Experience with NoSQL databases
Experience in fintech, banking, payments, or other regulated domains
Familiarity with AI-assisted development tools such as GitHub Copilot, Cursor, JetBrains AI, Claude, or similar tools
Readiness to learn and adopt AI tools in development workflows
Experience improving developer productivity through automation, internal tooling, or AI-assisted workflows
Experience mentoring engineers and contributing to engineering standards
Experience working in Agile / Scrum teams