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Senior Full-Stack Developer

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Summary

Senior full-stack developer building AtWork Systems' OneLynk, a multi-tenant SaaS ERP platform for government contractors. Day to day: designing scalable architecture, developing ERP modules and integrations, and supporting DevOps. Core stack: Java/JEE, AWS, Oracle/MySQL, Angular/PrimeNG, Docker/Kubernetes.

SUMMARY

AtWork 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, OneLynk 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, AtWork 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


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