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Senior Full-Stack Developer

ScalableOS


Job Location:

Makati City - Philippines

Monthly Salary: Not provided by the employer
Experience Required: 5years
Posted: 10 October 2026 (7 hours ago)
Application Deadline: 7 January 2027
Vacancies: 1 Vacancy

Job Summary

SUMMARY
AtWork Systems is transforming how government contractors run their businesses and were 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 youll 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 were just getting started.

If youre 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
  • Bachelors 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



Required Skills:

Strong Java development experience. Advanced understanding of Java Generics. Experience with Enterprise Java Beans (EJBs) and their lifecycle. Strong SQL and relational database experience (MySQL Oracle). REST API development and integration Angular