UNKNOWN

FEED

In this role, you will help rebuild and modernize our core platform in Go (Golang) , designing high-performance backend microservices that handle massive call volumes, real-time event routing, voice media streaming, and large-scale analytics with carrier-grade reliability. We are not just looking for someone who knows a single telecom technology—we are looking for a distributed systems engineer who has built large-scale, high-concurrency communications platforms where milliseconds matter.

YEAR

Convoso

Senior Platform Engineer

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By operating our own vehicles and manifesting regular rides to space, K2 is positioned to design, test, and deploy ambitious optical payloads at scale — built around large aperture (100–300 mm), diffraction-limited, space-qualified telescopes collecting and transmitting optical energy from the UV to the infrared, for missions in MEO, GEO, cis-lunar space, and beyond. In your first 6 months you will develop cleaning, bonding, mounting, and alignment methods and tooling for optical subassemblies, define manufacturing flows for optical payload hardware, and provide Design-for-Excellence (DFX) guidance on optics, optomechanical mounts, and integrated electro-optical assemblies.

K2 Space

Optical Manufacturing Engineer

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The ground software team is responsible for the systems that command our spacecraft, capture and manage their data, and turn raw telemetry into actionable insight, enabling reliable operations and rapid iteration across vehicles, from ground test through flight. Collaborate with test and integration teams to ensure ground systems are buildable, testable, and serviceable, and support floor activities such as test setup and data verification.

Fortastra Corporation

Sr. Ground Software Engineer

This is a hardware-focused role: you will architect, design, and build propulsion and thermal-fluid systems including thrusters, feed systems (tanks, valves, lines), and thermal management hardware that must operate reliably in the space environment. Strong understanding of fluid dynamics and thermal-fluids as applied to propellant management, feed systems, and thermal control, with a bias toward implementable, hardware-centric designs.

Sr. Thermal & Propulsion Engineer

Experience designing test infrastructure for hardware developed internally, including calibration rigs, dynamics testbeds, flat-sats, air-bearing tables, sensor test setups, HIL/PIL rigs, and integrated avionics test campaigns. 8+ years of experience designing, simulating, implementing, testing, or flight-qualifying GNC algorithms for spacecraft, launch vehicles, hypersonic/reentry systems, autonomous aircraft, robotics, or other high-reliability autonomous systems.

Pillar Space

Founding Lead GNC Engineer

You will define RF architectures, perform detailed link analyses, select and integrate COTS radios or design custom solutions where needed, and ensure that our communications systems perform reliably in orbit. You will be responsible for TT&C links to the ground as well as RF crosslinks between vehicles, including architecture, link budgets, radio selection or design, and antenna integration.

Sr. RF Engineer

You'll be a hands-on engineer who treats infrastructure code, build pipelines, and release processes as product security controls, and who understands the spacecraft and ground segment well enough to know what those controls need to protect. We value engineers and operators who prioritize sound judgment, candor, technical rigor, bias for action, and intellectual honesty over corporate consensus.

Staff DevOps Engineer

Backed by leading investors including JPMorgan Chase, Valor Equity Partners, Andreessen Horowitz, Founders Fund, 137 Ventures, Lux Capital, T. Rowe Price, and Morgan Stanley, we're building the future of American manufacturing-and looking for exceptional people to help make it happen. Series D at a $7.87B valuation, Hadrian is rapidly expanding our manufacturing footprint, launching new capabilities across welding, casting, forging, electronics, additive manufacturing, and more, while scaling our Factory-as-a-Service platform to transform how critical products are built.

Hadrian

All Levels: Product Engineer

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By operating our own vehicles and manifesting regular rides to space, K2 is positioned to design, test, and deploy ambitious optical payloads at scale - built around large aperture (100-300 mm), diffraction-limited, space-qualified telescopes collecting and transmitting optical energy from the UV to the infrared, for missions in MEO, GEO, cis-lunar space, and beyond. In your first 6 months you will develop cleaning, bonding, mounting, and alignment methods and tooling for optical subassemblies, define manufacturing flows for optical payload hardware, and provide Design-for-Excellence (DFX) guidance on optics, optomechanical mounts, and integrated electro-optical assemblies.

K2 Space Corp

Partner with avionics on radio and processor interfaces, RF and high-speed PCB layout, board-level EMC design, and debugging, driving root-cause resolution across RF, hardware, and software on the bench and during integrated test campaigns. Prior experience leading technical workstreams, managing engineers, mentoring junior and mid-level engineers, or building high-performing engineering teams.

Founding Lead RF & EMC Engineer

Fortastra is seeking a Senior Avionics Engineer to design and deliver spacecraft avionics hardware and embedded systems through the full product lifecycle from concept and architecture, through PCB design and bring-up, to integration on flight hardware. The avionics function owns the electrical and computing backbone of the vehicle - flight computers, sensor interfaces, power distribution, and communications that enable autonomous operations in complex orbital environments.

Sr. Avionics Engineer

Fortastra is seeking a Guidance, Navigation, and Control (GNC) Engineer to architect, implement, and validate flight-critical algorithms supporting autonomous rendezvous, proximity operations (RPO), formation flying, and precision maneuvering. The ideal candidate combines deep technical rigor in control theory, state estimation, and orbital mechanics with hands-on experience integrating algorithms into embedded flight software and hardware-in-the-loop (HIL) environments.

Guidance, Navigation, and Control (GN&C) Engineer

You will focus on the tactical execution of our autonomous spacecraft by developing the software and algorithms that enable multi-agent coordination, vehicle navigation, and trajectory planning across a distributed spacecraft constellation. Computer Science, Computer Engineering, Electrical Engineering, Aerospace, Robotics, or other sciences and/or physics-based degree.

Sr. Autonomy Engineer

Areas of Responsibilities: Architectural Ownership & Systems Strategy : Drive the end-to-end design, technical roadmaps, and scalable implementation of distributed full stack systems, event-driven architectures, and domain-driven microservices across Java/Kotlin Spring Boot and modern React Typescript environments. Desired Skills & Experience: AI developer tooling infrastructure : Experience authoring custom MCP (Model Context Protocol) servers, building automated synthetic test generation tools, or integrating LLM evaluation pipelines into continuous integration.

HOUR

SRI Resources

Senior AI-Native Full Stack Software Engineer

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The Testing Systems Development Engineer III is an independent contributor responsible for owning the end-to-end delivery of a rig capability or method area, including specification development, design reviews, build, commissioning, and capability certification. This role offers the opportunity to influence global testing methodologies, lead complex technical initiatives, mentor developing engineers, and contribute to the advancement of world-class laboratory capabilities in a collaborative and innovation-driven environment.

Garrett Motion Inc

Test Systems Development Engineer

We built the alternative: an AI system that ingests certified payroll data, validates it against DOL wage determinations and apprenticeship program requirements, surfaces violations in real time, and generates the audit trail needed for tax credit certification. We automate the verification of Prevailing Wage and Apprenticeship (PWA) requirements under the Inflation Reduction Act -- the compliance obligations that determine whether renewable energy developers keep or lose their IRA tax credits.

Landing AI

Founding Engineer-Vindexa

You will serve as the team's subject matter expert on injectors, regeneratively cooled thrust chambers, acoustic stability, and high-temperature materials, bringing hands-on mastery of design tools and modern manufacturing methods including additive manufacturing. Lead combustion device design: Own the design, analysis, and optimization of combustion chambers, injectors, regen cooling circuits, nozzles, and flow systems for advanced satellite and space vehicle thrusters - from concept through flight qualification.

True Anomaly

Senior Propulsion Engineer, Design (Combustion Devices)

The Skillset Youll Bring: 6+ years of professional software engineering experience, with significant experience in developer infrastructure, test infrastructure, platform engineering, or developer tooling. In This Role, Youll: Design and build infrastructure that provisions isolated, production-like testing environments on demand, enabling engineers to validate changes against Sifts full application stack.

Sift (US)

Software Engineer, Developer Experience (AI Infrastructure)

Hands-on experience building LLM or vision-language model (VLM) extraction pipelines for complex documents, including PDFs, scanned pages, tables, and technical drawings. Implement a local data store and audit logging system using SQLite or SQL Server Express to record model calls, input file hashes, and generated reports.

Chiri

Applied AI Engineer – Document Intelligence

Create and maintain golden paths for common workflows (new service setup, background jobs, event streams, APIs) so teams can ship quickly with built-in security and observability (and consistent defaults across services). This role spans infrastructure and internal developer tooling: you’ll design self-serve platforms, libraries, and automation that “just work,” enabling complex product experiences without compromising security or uptime.

Building Engineer Jobs in Pasadena, CA

Senior Platform Engineer Convoso

Optical Manufacturing Engineer K2 Space

Sr. Ground Software Engineer Fortastra Corporation

Sr. Thermal & Propulsion Engineer Fortastra Corporation

Founding Lead GNC Engineer Pillar Space

Sr. RF Engineer Fortastra Corporation

Staff DevOps Engineer Fortastra Corporation

All Levels: Product Engineer Hadrian

Optical Manufacturing Engineer K2 Space Corp

Founding Lead RF & EMC Engineer Pillar Space

Sr. Avionics Engineer Fortastra Corporation

Guidance, Navigation, and Control (GN&C) Engineer Fortastra Corporation

Sr. Autonomy Engineer Fortastra Corporation

Senior AI-Native Full Stack Software Engineer SRI Resources

Test Systems Development Engineer Garrett Motion Inc

Founding Engineer-Vindexa Landing AI

Senior Propulsion Engineer, Design (Combustion Devices) True Anomaly

Software Engineer, Developer Experience (AI Infrastructure) Sift (US)

Applied AI Engineer – Document Intelligence Chiri

Senior Software Engineer - Platform Loancrate

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