Senior Systems Engineer

About Fullsteam

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.

Job Summary

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.

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 ensure high-quality deliverables.