Top Linux Jobs in San Diego, CA

Leads hands-on fluid-processing engineering across mixing, blending, pasteurization, filtration, and separation on the plant floor. Improves yield, throughput, cycle times, capability, and food safety while troubleshooting production equipment and processes. Supports equipment installations, modifications, commissioning, capital projects, documentation, and cross-functional product launches. Partners with Operations, Production, Quality Assurance, R&D, and maintenance to implement process improvements and manage manufacturing risk.

Design, build, and scale high-throughput, low-latency Go services powering blockchain RPC infrastructure. Architect distributed systems, own production delivery, improve uptime and latency, resolve complex production issues, and collaborate across Product, Infrastructure, and Developer Experience teams.

Eight-week summer IT internship for undergraduate and graduate students. Interns will contribute to software development lifecycle activities, implement automation for manual business processes, test and troubleshoot software, document solutions, and participate in Agile ceremonies. The program includes mentoring, collaboration with business leaders, professional development, and work on real business projects at Protective’s Birmingham, Alabama corporate office.

Designs, deploys, maintains, and supports carrier-grade voice infrastructure, including MetaSwitch, SS7 networks, switching platforms, SBCs, VoIP services, fraud-management systems, and E911/PSAP systems. Responsibilities include troubleshooting complex voice networks, call-routing architecture, performance monitoring, outage investigations, security hardening, regulatory compliance, lifecycle planning, documentation, and participation in 24/7 support rotations.

Administers and optimizes enterprise network infrastructure, servers, endpoints, Active Directory, Microsoft systems, firewalls, VPNs, wireless networks, backups, antivirus, and Cisco telephony platforms. Provides third-tier technical support, maintains security and compliance controls, documents network architecture, manages vendors and infrastructure projects, recommends technology improvements, and participates in after-hours support and on-call rotations.

Owns the reliability, security, performance, and availability of AWS-hosted healthcare infrastructure. Builds infrastructure as code, CI/CD automation, monitoring, observability, backup and disaster recovery capabilities. Leads incident response, optimizes cloud resources, implements security controls, supports customer onboarding and migrations, and ensures compliance with healthcare privacy and software lifecycle requirements. Participates in on-call rotations and provides technical guidance to engineering and support teams.

Designs and executes manual and automated testing for web-based SaaS applications, including regression, integration, performance, and user acceptance testing. Owns QA for a product workstream, documents defects in Jira, enhances Mabl automation, collaborates on acceptance criteria, validates releases, and monitors production quality. Requires three or more years of QA experience, API testing knowledge, SaaS testing experience, strong analytical skills, and preferably SQL proficiency.

Build internal software for field collection operations, including tasking, site setup, device inventory, shift tracking, local tools, and site-health monitoring. Improve operational efficiency by observing field workflows, removing bottlenecks, and making site expansion repeatable. Integrate field tools with data infrastructure and marketplace incentives, while collaborating closely with on-the-ground teams and occasionally traveling to field sites.

Leads the Core Business Applications team through staff development, application strategy, coding, solution design, testing, implementation, maintenance, and troubleshooting. Partners with technical and functional stakeholders to translate business needs into secure, scalable solutions. Oversees vendors, project priorities, budgeting, system enhancements, and user satisfaction while serving as a subject matter expert for integrated business systems.

Entry-level engineering trainees will contribute across the software and data development lifecycle, including requirements analysis, architecture, coding, testing, deployment, documentation, and maintenance. They will gain hands-on experience with cloud, data engineering, LLMs, prompt engineering, autonomous AI agents, ETL/ELT pipelines, distributed data systems, APIs, CI/CD, and software quality practices. The role requires collaboration, problem-solving, communication, adaptability, and full-time work from the Schaumburg office.