Senior Full-Stack Developer

SUMMARY At. Work Systems is transforming how government contractors run their businesses and we're doing it with modern, scalable, and secure technology engineered for impact. Our OneLynk SaaS platform powers a full suite of managed services, giving organizations the automation, intelligence, and integrated workflows they need to operate smarter, stay compliant, and grow profitably.

As a senior developer on our team, you’ll help build and evolve a cutting-edge platform that replaces legacy, fragmented systems with a unified, cloud-native solution. From on-demand back-office capabilities to embedded compliance and AI-driven decision support, One. Lynk is designed to disrupt the “back-office” landscape — and we’re just getting started.

If you’re passionate about clean architecture, secure scalable services, and working with the latest technologies to solve complex real-world problems, At. Work Systems offers a rare opportunity: the ability to innovate boldly, deliver meaningful outcomes, and shape the future of an industry ready for change. Join us and build something that truly matters.

JOB RESPONSIBILITIES

Design and Architecture Scalable SaaS Solutions Define and implement system architecture that supports multi-tenant ERP modules, high availability, and secure cloud-based deployment. Apply advanced design patterns and architectural principles to ensure maintainability, scalability, and performance. Develop and Optimize Core ERP Modules Utilize Claude Code and other AI enable tools to develop clean, maintainable, and testable code for mission-critical ERP features such as finance/accounting, HR, contract/project management, procurement, order management and compliance.

Refactor existing codebases to improve efficiency and reduce technical issues. Integrate Third-Party Systems and APIs Design and implement secure integrations with payment gateways, document management systems, government compliance tools, and other SaaS services. Ensure seamless data exchange via REST, GraphQL, or message queues.

Support DevOps and Continuous Delivery Practices Implement CI/CD pipelines, automated testing frameworks, and containerized deployments (e.g., Docker, Kubernetes). Monitor production systems for uptime, security, and performance, and respond to incidents with root cause analysis. Mentor and Guide Engineering Teams Provide technical leadership to junior and mid-level engineers, conducting code reviews, pair programming, and knowledge-sharing sessions.

Foster best practices in agile software development, secure coding, and quality assurance. Ensure Compliance, Security, and Data Privacy Implement role-based access control, encryption, and other security measures to protect sensitive ERP data. Stay updated on compliance requirements (e.g., FedRAMP, SOC 2, GDPR) and ensure the platform meets or exceeds these standards.

Requirements

Bachelor’s degree in computer science or software engineering At least 5 years’ experience developing business systems software At least 7-10 years’ experience developing SaaS software using JEE and Amazon web services. At least 7-10 years’ experience in object-oriented programming language, such as Java, including extensive use of Java Collections, Reflection and Generics libraries to build mission critical business applications.

At least 5 years developing enterprise applications using SQL databases such as Oracle and MySQL and JEE libraries including JPA, EJBs, JMS messaging and REST. Must have extensive knowledge of building backend REST-based APIs using JPA or Hibernate and GraphOL. At least 7-10 years designing, developing and debugging user interfaces software using Angular/Prime NG web development toolkit.

At least 7-10 years in DevOps utilizing Amazon web services to support configuring and deploying virtual servers, maintaining and optimizing SQL databases and utilizing CI/CD for deploying enterprise software Should be willing to accept a long-term work-from-home arrangement. Should be amenable to a permanent night shift schedule