Software Gigs

Lyntris
Posted 1 day ago

A Junior Operating Systems Engineer will build and maintain custom Linux images using Yocto Project (recipes, layers, BitBake, kernel configuration), supporting immutable A/B-updatable OS architectures with secure boot and update tooling. The role involves packaging, integrating, and troubleshooting system services, drivers, and third-party software on embedded x86 hardware, as well as contributing to OS hardening (FIPS mode, secure boot, compliance configuration). Daily use of generative AI tools will accelerate development tasks including recipe writing, test scaffolding, and debugging. The engineer will debug boot, kernel, driver, and userspace issues on real appliance hardware and document build processes, image releases, and provisioning workflows.

Clearance Required
San DiegoLast seen today
Amazon
Posted 1 day ago

Senior embedded software engineer role developing mission-critical firmware for Amazon's Leo satellite constellation. Responsibilities include architecting ASIC firmware, RF communication subsystems, secure boot operations, real-time embedded software, and hardware interfaces using protocols like I2C, SPI, UART, and Ethernet. The role requires security-by-design principles, threat modeling, secure coding practices, and collaboration with hardware architects and systems engineers to bring custom silicon from concept through secure bring-up and production integration.

San DiegoLast seen today
Nathan Kunes Inc
$110,000 – $175,000Posted 2 days ago

The Senior Systems Engineer will design, develop, and support communications and encryption devices, providing technical expertise in cryptographic technologies and deployment strategies. Responsibilities include advising on cryptographic equipment deployment, analyzing emerging threats, conducting technical analysis of cryptographic products for acquisition decisions, liaising with vendors on device lifecycle, and supporting leadership with briefings and fielding decisions. The role requires 5–15 years of cybersecurity, systems engineering, or network security experience, along with strong analytical, problem-solving, and written communication skills. A bachelor's degree in Systems Engineering, Computer Science, or related field is required.

Clearance Required
San DiegoLast seen today
Leidos
$83,200 – $99,840Posted 2 days ago

Field/Base Network Engineer managing large technical teams and Navy-Marine Corps Intranet (NMCI) operations under the SMIT contract. Responsibilities include BAN/LAN/WAN network operations, troubleshooting, repair, installation, cabling, configuration, and COMSEC support; managing incident response, change management, and problem management initiatives. Requires extensive operations/engineering leadership experience, working knowledge of large DoD enterprise network environments, and hands-on technical background in network architectures, fault diagnosis, and ITSM/DevSecOps. Physical role involving equipment installation, rack mounting, confined-space work, and site-based troubleshooting across multiple locations.

Clearance Required
San DiegoLast seen today
Saronic Technologies
Posted 2 days ago

Design and own network security across Saronic's enterprise, on-premises, cloud, and maritime vessel communications infrastructure. Responsibilities include managing firewalls, segmentation, VPN/ZTNA, and wireless systems (Palo Alto, Cisco, Aruba); securing AWS VPC architecture in commercial and GovCloud; architecting secure vessel communications over cellular, RF, SATCOM, and mesh links with cryptographic key management; and building network observability and automation at scale. Requires 5+ years of hands-on enterprise network security experience, production firewall and VPN operations, L3-L7 networking fundamentals, and the ability to obtain a U.S. security clearance.

Clearance Required
San DiegoLast seen today
Nathan Kunes Inc
$130,000 – $160,000Posted 3 days ago

Senior Software Engineer supporting next-generation tools and systems development at a defense/intelligence contractor. Responsibilities include designing and implementing AI-assisted web-based applications that integrate with custom embedded systems, writing requirements and test documentation, executing tests, and interfacing with customers on requirements and design reviews. Requires 6+ years of software engineering experience, proficiency in Python, C# or Rust, JavaScript/TypeScript, HTML/CSS, Linux systems expertise, web-based UI development skills, and network software engineering knowledge (TLS/HTTPS). Must hold or be able to obtain a DoD SECRET clearance.

Clearance Required
San DiegoLast seen 1 day ago
Dexcom
$190,100 – $316,800Posted 3 days ago

Lead the architectural design of server-side, backend, and cloud platform capabilities supporting Dexcom's continuous glucose monitoring products. Collaborate across product, cybersecurity, firmware, data, and mobile teams to translate business and regulatory requirements into secure, scalable, and maintainable platform solutions. Establish architectural direction for distributed services, APIs, data pipelines, event-driven systems, and shared platform capabilities. Guide technology exploration, system integration, performance testing, and serve as an authority for platform architecture principles and modern backend development practices across the organization.

San DiegoLast seen 1 day ago
Amazon Web Services (AWS)
Posted 4 days ago

Lead senior systems engineer on the EC2 NX Platforms team to design and optimize the packet processing pipeline powering EC2 instances across AWS's global fleet. Drive ultra-high-performance networking software handling millions of packets per second through expert C/C++ development, low-level hardware tuning, and data structure optimization. Own architecture decisions, mentor junior engineers, and ship production code across EC2 and Lambda with full ownership from design through operation. Collaborate with cross-functional teams to implement Software Defined Networking (SDN) capabilities that enhance security, availability, and reliability.

San DiegoLast seen 2 days ago
Amazon Web Services (AWS)
Posted 4 days ago

Design and implement ultra-high-performance packet processing software for AWS EC2's virtualized networking stack, handling encryption, firewalls, routing, and monitoring across 9M+ hosts. Own end-to-end development of features running on the EC2 Nitro System, from design through production deployment, optimizing for millions of packets per second on single CPU cores. Build secure, scalable monitoring and diagnostics services, and design hardware/software validation platforms enabling efficient CI/CD. Mentor junior engineers on systems architecture and maintainable code while collaborating cross-functionally to define requirements and improve development processes.

San DiegoLast seen 2 days ago