Embedded Software EngineerCastelion Corporation • Allen, TX, US

Embedded Software Engineer

Castelion Corporation • Allen, TX, US

[job_card.variable_days_ago]

[job_preview.job_type]

[job_card.permanent]

[job_card.job_description]

Job Description

About Castelion

Castelion is bringing a new approach to defense development and production : one that focuses on short, iterative design cycles, rapid flight testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Embedded Software Engineer

Castelion is seeking an Embedded Software Engineer to architect, implement, and harden software running on resource constrained, mission critical systems. You'll write low-level C and Rust, accelerate workloads with CUDA, and own secure processing paths (crypto, secure boot, key management) from concept through field test. You'll collaborate closely with electrical, systems, and test teams to bring new hardware online fast and keep it reliable.

Responsibilities

Embedded & Firmware Development

Design and implement embedded applications, device drivers, and board support packages in C and Rust.
Optimize and parallelize compute-intensive algorithms using CUDA on embedded GPUs.
Bring up new boards : bootloaders, secure boot chains, peripheral initialization, and diagnostics.
Implement and validate cryptographic protection using TPMs

Systems Integration & Testing

Integrate sensors, comms links, and high-rate data paths, profile and tune for latency and throughput.

Develop automated HW-in-the-loop tests; script board flashing, provisioning, and regression suites.

Use JTAG, logic analyzers, oscilloscopes, and trace tools to debug hard problems.

Monitoring & Telemetry

Instrument systems for performance and reliability; feed data to Grafana / Foxglove for analysis.

Collaboration & Troubleshooting

Partner with cross-functional teams to isolate issues quickly in lab and field environments.

Document designs, decisions, and interfaces clearly for internal and external stakeholders.

Basic Requirements

Bachelors in Computer Science, Electrical / Computer Engineering, or related field.

4+ years professional embedded software experience (bare metal and / or RTOS).

Strong proficiency in C and production Rust (unsafe code discipline, ownership semantics).

Hands-on CUDA development on embedded or edge-class GPUs (Jetson, similar).

Experience with ARM-based SoCs, memory-mapped I / O, DMA, interrupts, IPC.

Proven work on secure boot, cryptography libraries, key management, or similar security-critical code.

Comfortable with Linux internals, cross-compilers, build systems, and hardware debugging tools.

Solid Git / GitHub workflows and familiarity with modern CI / CD.

Preferred Skills and Experience

Experience with Zephyr, FreeRTOS, or seL4;

Knowledge of DSP, real-time networking, or RF signal chains.

Azure or other cloud services for telemetry ingestion.

US Citizenship and ability to potentially obtain / maintain security clearance.

Leadership Qualities

Bias to Action and Creative Problem Solving . Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes / concepts / materials from other industries to achieve efficiency gains. The ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative . A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin / ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

All employees are granted long-term stock incentives as part of their employment at Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

[job_alerts.create_a_job]

Embedded Software Engineer • Allen, TX, US

[internal_linking.similar_jobs]

Embedded Software Engineer

Wilson Connectivity • Richardson, TX, US

[job_card.full_time]

Join the team at Wilson Connectivity and be a part of our mission to connect everyone, everywhere! As the industry leader in wireless connectivity solutions, we're bringing 5G connectivity to b...[show_more]

[last_updated.last_updated_30] • [promoted]

Bilingual Software Developer

Cinter Career • Dallas, TX, US

[job_card.full_time]

[filters_job_card.quick_apply]

Job Title : Bilingual Software Developer • Client : Japanese Software Engineering Company • Working Location : Dallas, TX • Employment Type : Ful...[show_more]

[last_updated.last_updated_30]

Principal Embedded Software Engineer (ONSITE)

Collins Aerospace • Richardson, TX, US

[job_card.full_time]

HTX36 : Richardson, TX 3200 E Renner Rd , Richardson, TX, 75082-2402 USA.Person, or Immigration Status Requirements : .Are you looking to make a meaningful, positive impact while advancing your career...[show_more]

[last_updated.last_updated_variable_days] • [promoted]

Embedded Systems Engineer - Autonomous Vehicles

ISEE • Dallas, TX, US

[job_card.full_time]

The hardware team at ISEE is seeking a detail oriented senior lead embedded systems engineer to both lead and execute embedded software development. This role has critical responsibilities in safety...[show_more]

[last_updated.last_updated_30] • [promoted]

Sr Software Engineer Golang Ember

Strategic Employment • Dallas, TX, United States

[job_card.full_time]

By leveraging cutting-edge technology, they’re helping bridge the digital divide and expand connectivity to those who need it most. As a Full Stack Engineer, you’ll play a key role in designing, dev...[show_more]

[last_updated.last_updated_variable_days] • [promoted]

Middleware Software Engineer

Sol-Ark, LLC • Allen, TX, US

[job_card.full_time] +1

Full-time W-2 ONSITE opportunity (not remote)!.Candidates must be legally authorized to work in the United States without requiring employer-sponsored visa sponsorship now or in the future.Candidat...[show_more]

[last_updated.last_updated_30] • [promoted]

Lead Embedded Systems Engineer

Symbiotic Services • Addison, TX, US

[job_card.full_time]

Symbiotic Services is hiring on behalf of a pioneering client building.Lead Embedded Systems Engineer.Hundreds of precision actuators. Wi-Fi-based device orchestration.MQTT publish / subscribe messagi...[show_more]

[last_updated.last_updated_1_day] • [promoted]

Principal systems software engineer

Targeted Talent • Dallas, TX, US

[job_card.full_time]

Our client is a company building the world's highest- performance pure digital AI inference chip.We are looking for an experienced software engineer with excellent C / C++ programming skills and ...[show_more]

[last_updated.last_updated_30] • [promoted]

Staff RAN Systems Engineer

ANDREW, an Amphenol company • Richardson, TX, US

[job_card.full_time]

Join our team and help shape the future of connectivity indoors and outdoors.Together, let's push the boundaries of technology and advance sustainable networks worldwide.How You'll Help Us ...[show_more]

[last_updated.last_updated_variable_days] • [promoted]

Senior Embedded Hardware Design Engineer

Applied Concepts • Richardson, TX, US

[job_card.full_time] +1

Senior Embedded Hardware Design Engineer.Senior Embedded Hardware Design Engineer - Job Overview : .Applied Concepts has an exciting opportunity at our Richardson R&D facility, where you will be ...[show_more]

[last_updated.last_updated_30] • [promoted]

Embedded Software Engineer

VirtualVocations • Dallas, Texas, United States

[job_card.full_time]

A company is looking for a Staff Embedded Software Engineer.Key Responsibilities Own development of end-to-end embedded software features from concept through delivery Deliver embedded software ...[show_more]

[last_updated.last_updated_variable_hours] • [promoted] • [new]

Embedded Linux Software Engineer

Planmeca USA • Dallas, TX, United States

[job_card.full_time]

Embedded Linux Software Engineer / Embedded Software Engineer.Planmeca is one of the largest privately-held dental equipment companies in the industry. Our technology-driven product line includes di...[show_more]

[last_updated.last_updated_variable_days] • [promoted]

Senior C++ Software Engineer

Tek Leaders Inc • Dallas, TX, Texas, USA

[job_card.full_time]

Title : Senior C++ Software Engineer Location : Dallas, TX (ONSITE) Required Skills & Qualifications : Strong proficiency i...[show_more]

[last_updated.last_updated_variable_days]

Firmware Engineer

APCON • Plano, TX, US

[job_card.full_time]

Firmware Engineer to be a contributor to our next-generation embedded systems.In this role, you will be assisting in the design, development, testing, and implementation of firmware solutions for a...[show_more]

[last_updated.last_updated_30] • [promoted]

Principal, Software Engineering : DevOps

The Options Clearing Corporation • Dallas, TX, United States

[job_card.full_time]

This candidate will work with the DevOps team in supporting the development efforts of the OCC Risk framework.The team strives for goals that refine and automate the processes needed to support the...[show_more]

[last_updated.last_updated_1_day] • [promoted]

Embedded Linux Software Engineer

Planmeca USA Inc. • Richardson, Texas, United States

[job_card.full_time]

[last_updated.last_updated_30] • [promoted]

Embedded / Hardware Test Automation Engineer

Sol-Ark company • Allen, TX, United States

[job_card.full_time]

This position will be onsite at our corporate offices in Allen, Texas (Dallas-Fort Worth area).Full-time W-2 ONSITE opportunity (not remote)!. Candidates must be legally authorized to work in the Un...[show_more]

[last_updated.last_updated_variable_days] • [promoted]

Software Engineer (on-site)

Ziosk • Plano, TX, US

[job_card.full_time]

Software Engineer (on site) - Plano.Welcome to Ziosk,where we empower restaurants to focus on what matters most : the guest experience!. Have you ever used a tablet to pay at a restaurant?We pioneere...[show_more]

[last_updated.last_updated_30] • [promoted]