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).
Primary Responsibilities:Design, build, test, and document solutions across frontend, backend, and database layersDevelop new functionality using TypeScript, React, C#, SQL, and .NETModernize legacy functionality and improve the maintainability of existing solutionsDesign and document internal and public APIsWrite unit and integration tests and contribute to a high standard of code qualityFollow engineering best practices around code review, version control, CI/CD, and secure developmentTake ownership of changes from refinement through deployment and production supportWork closely with product managers, QA engineers, and other developers in a distributed teamInvestigate issues, analyze logs and telemetry, and deliver safe, reliable fixesContribute to automation across build, test, release, and deployment processesShare knowledge and help improve team development practicesRequirements:5+ years of commercial software development experienceStrong hands-on experience with C# and modern .NET / ASP.NET CoreStrong experience with TypeScript and React or another modern JavaScript frameworkGood knowledge of HTML, CSS, SQL, and MS SQL ServerExperience building and supporting production web applications end-to-endExperience with API design, implementation, and troubleshootingExperience writing and maintaining unit and integration testsUnderstanding of CI/CD pipelines, code review practices, and automated quality controlsExperience working with both legacy systems and modern service-based architecturesUnderstanding of web security fundamentals and secure coding practicesPractical experience with AI-assisted development tools such as GitHub Copilot, Cursor, JetBrains AI, Claude, or similar tools, or strong readiness to adopt them quicklyAbility to critically evaluate AI-generated output and maintain ownership of technical decisions and delivered codeGood communication skills and Intermediate+ EnglishNice to have:- 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
