Senior Systems Engineer

It's fun to work in a company where people truly BELIEVE in what they're doing!

Fullsteam is a leading provider of vertical software and embedded payments technology dedicated to helping businesses flourish by providing their customers with seamless experiences. With a dynamic and growing team of over 1,900 employees, we are committed to driving innovation and delivering best-in-class software and payment solutions that empower small and medium-sized businesses across numerous industries. Our purpose is to help our customers grow their businesses and delight their customers. Join us and be a part of a forward-thinking company that values growth, excellence, and the success of our clients.

ACGI Software, part of the Fullsteam organization, is a leader in enterprise level association and credentialing software. ACGI develops and delivers enterprise systems for associations, credentialing organizations and association management companies. Our platform enables organizations to become more agile and responsive to their constituents’ needs.

We are seeking a highly skilled Senior Systems Engineer to lead the design, implementation, and support of our enterprise infrastructure and application platforms. This role will focus on 40% infrastructure engineering (servers, networking, middleware), 20% Oracle DBA tasks, and 40% Oracle APEX development.

The ideal candidate will have deep expertise in Oracle Linux, ORDS, Middleware, DNS, Apache, Networking, and Oracle 19c/Oracle APEX, with a strong understanding of Git-based version control and experience collaborating with DevSecOps teams to drive automation and deployment pipelines. Experience with Azure or AWS Cloud is a plus.

Key Responsibilities

Infrastructure & Middleware Engineering (40%)

• Support, help design, and maintain Oracle Linux servers, Oracle REST Data Services (ORDS), and middleware platforms supporting mission-critical applications.
• Manage Apache web servers, DNS, email routing, SSL/TLS certificates, and load balancer configurations.
• Implement networking best practices for security, availability, and performance across on-premises and hybrid environments.
• Monitor system performance, automate patching, backups, and system health checks using tools such as Ansible, shell scripting, or similar automation frameworks.
• Monitor WAF (Fastly) and SIEMENS (Splunk) for security related attacks.
• Collaborate with security and DevSecOps teams to ensure compliance with corporate and regulatory requirements.
• Maintain proper documentation for systems, procedures, and infrastructure designs.
   

Database Administration (20%)

• Perform Oracle 19c database administration, including backups, tuning, patching, and user management.
• Work with developers to optimize SQL queries, troubleshoot performance issues, and maintain high database availability.
• Collaborate with Infrastructure team and engineers to advise on current and future disaster recovery strategies and ensure all environments are aligned with business continuity goals.
• Support schema migrations and changes through structured version control and deployment processes.

Oracle APEX Development (40%)

• Develop and maintain Oracle APEX applications supporting continued product development.
• Integrate APEX with REST APIs, middleware, and external services where needed.
• Gather requirements, design user-friendly interfaces, and deploy secure, performant APEX applications.
• Maintain version-controlled APEX artifacts and promote structured, repeatable deployment practices.

Version Control & DevSecOps Collaboration

• Manage source code using Git and GitHub, ensuring consistent branching strategies, code reviews, and release workflows.
• Collaborate with DevSecOps teams to design and enhance CI/CD pipelines using GitHub Actions for automated testing, building, and deployment.
• Support and enforce best practices in secure code handling, change management, and traceability across environments.

Cloud & Automation

• Work with Azure or AWS services (EC2, RDS, S3, VPC) for hybrid infrastructure deployments and cloud integrations.
• Assist in automation initiatives for infrastructure provisioning and application deployments using Terraform, Ansible, or AWS CloudFormation.
• Participate in migration planning for legacy workloads into modern, cloud-native solutions.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent work experience).
• 10+ years of experience in systems engineering, infrastructure management, or DBA roles.
• Strong expertise in:
  • Oracle Linux administration and system optimization.
  • Oracle 19c Database administration and performance tuning.
  • Oracle ApEx and PL/SQL, Stored Packages/Procedures/Functions, Triggers
  • Oracle Web Development (HTML, Javascript, PL/SQL and ApEx Toolkit)
  • ORDS and Oracle APEX deployments in production environments.
  • Apache HTTP Server configuration, troubleshooting, and security hardening.
  • DNS, email routing (Postfix/Sendmail), and networking fundamentals.
  • Git/GitHub version control, branching strategies, and release management.
• Experience collaborating with DevSecOps teams to implement CI/CD pipelines (GitHub Actions preferred).
• Knowledge of security best practices for databases, web servers, middleware, and infrastructure.
• Familiarity with Azure or AWS Cloud (EC2, RDS, S3, VPC) is a plus.

Soft Skills

• Strong problem-solving skills and proactive mindset for troubleshooting and optimization.
• Excellent communication and documentation skills for cross-team collaboration.
• Ability to mentor junior team members and guide best practices for secure, efficient infrastructure management.
• Comfortable working in a hybrid role supporting infrastructure, database administration, and application development.

Fullsteam supports an inclusive workplace that values diversity of thought, experience, and background. Fullsteam is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, ancestry, age, physical or mental disability, sex, sexual orientation, gender identity/expression, pregnancy, veteran status, marital status, creed, status with regard to public assistance, genetic status or any other status protected by federal, state, or local law.