Berkeley, United States of America Remote (Global) Employment

Access Softek is hiring a Senior Back End Developer (C#)

Responsibilities

  • Lead the end-to-end creation and deployment of advanced features, from concept through to live operation.
  • Anticipate technical challenges and make sound architecture choices with little need for supervision.
  • Leverage artificial intelligence coding assistants to speed up development, while rigorously checking outputs for accuracy and safety.
  • Create straightforward, usable documentation for API users.
  • Ensure comprehensive automated test coverage for all developed components.
  • Take full ownership of code within assigned product domains, including services in a microservices setup.
  • Refactor and update outdated systems to improve long-term code health and ease of maintenance.
  • Adhere to best practices in code review, source control, continuous integration and deployment, and secure software development.
  • Diagnose and resolve system issues using log and telemetry analysis, delivering stable and trustworthy fixes.
  • Mentor peers and contribute to improving team-wide engineering standards.

Requirements

  • Minimum of five years of professional experience developing web applications or backend APIs using C#.
  • Demonstrated ability to lead architectural design and evaluate technical trade-offs.
  • Solid grasp of object-oriented design principles and established design patterns (GoF).
  • Hands-on experience with microservices, as well as modernizing and maintaining legacy systems.
  • Proficiency in data modeling, MS SQL, and optimizing data access layers.
  • Experience designing, implementing, and debugging APIs.
  • Strong background in unit and integration testing using frameworks such as NUnit, xUnit, FluentAssertions, and Moq.
  • Capable of managing code from initial commit through to production, with deep experience in CI/CD and Git workflows.
  • Knowledge of core web security concepts and secure coding techniques.
  • Regular use of AI-powered development tools in real-world, production-grade coding—not just for experimentation.
  • Effective communication skills and at least intermediate-level English proficiency.

Nice to Have

  • Experience embedding large language models or AI capabilities into software products, such as agents, retrieval-augmented generation (RAG), or MCP-based tooling.
  • Background in building internal developer tools powered by AI to boost engineering productivity.

Compensation

Competitive salary with monthly internet stipend of $50, paid vacation, national holidays, paid sick leave, medical and mental health coverage, education reimbursement, and equipment provision.

Work Arrangement

Remote (Worldwide) — Berkeley, California

Team

Experienced development teams working in a flexible, collaborative environment with strong emphasis on modern engineering practices and knowledge sharing.

Work Arrangement

This role requires availability during 2 AM–10 AM PST/PDT; some flexibility is allowed on either end of this window.

Other

  • AI-assisted development tools (GitHub Copilot, Cursor, Claude Code, ChatGPT) are integrated into daily engineering workflows.
  • Provision of computer equipment is required.
  • Internet compensation of $50 per month is provided.
  • Paid vacation and time off for national holidays.
  • Paid sick leave and an internal medical insurance policy.
  • Mental health coverage is included.
  • Financial support for training and further education.
  • Active community of practice with regular knowledge-sharing sessions.
  • Flexible working hours.
  • Experienced development teams.
  • Opportunity for long-term employment.
  • Competitive salary.
  • Additional benefits are detailed in the Staff Handbook.

Not mentioned

Required Skills
API DesignTroubleshooting
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About company
Access Softek
A software company specializing in development solutions, with a focus on banking platform technologies.
All jobs at Access Softek Visit website
Job Details
Department Banking Platform Team
Category backend
Posted 18 days ago