Propulsion Cycle Analysis Engineer

ABOUT ASTRO MECHANICA:At Astro Mechanica, we are a pioneering aerospace firm dedicated to reshaping the future of high-speed travel. Our vision is to democratize supersonic flight, making it not only accessible but also sustainable and efficient. We believe that the future of global mobility is rapid, on-demand, and point-to-point. By integrating our cutting…

Astro-Mechanica is seeking a Senior Propulsion Development Engineer in San Francisco. This position centers on developing advanced propulsion systems for aerospace applications. Role overview The Senior Propulsion Development Engineer leads projects focused on new propulsion technologies. Work involves collaborating with teams from different disciplines to move designs from concept to implementation. The role requires hands-on involvement in both technical development and project leadership. Key responsibilities Guide the design and development of propulsion systems for aerospace use Lead and coordinate engineering projects with cross-functional teams Apply advanced technologies to meet evolving industry requirements Location This role is based in San Francisco.

Astranis is at the forefront of expanding humanity’s presence beyond Earth through the development of advanced satellites designed for high orbits. Our satellites facilitate dedicated and secure networks for a diverse clientele, including major enterprises, governmental agencies, and the United States military. With five satellites currently in orbit and a robust pipeline, we are addressing a substantial backlog exceeding $1 billion in commercial agreements.As a trusted partner in satellite communications, Astranis caters to clients with high standards for reliability, security, network performance, and tailored solutions. With over $750 million raised from distinguished investors such as Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 skilled engineers and entrepreneurs operates from our expansive 153,000 sq. ft. headquarters in Northern California, USA.

Astranis develops advanced satellites positioned in high orbits, providing secure network access for a range of clients, including large enterprises, government agencies, and the U.S. military. The company has launched five satellites so far and continues to expand, with a commercial contract backlog exceeding $1 billion. Astranis operates from a 153,000 square foot headquarters in Northern California and has a team of 450 engineers and entrepreneurs. Investors include Andreessen Horowitz, Blackrock, and Fidelity, with total funding above $750 million. Role overview The Propulsion Engineer will focus on designing, evaluating, and testing in-space propulsion components and systems for Astranis satellites. Success in this role requires a solid understanding of propulsion theory, hands-on technical ability, and an eagerness to tackle new engineering problems. Experience with in-space propulsion, launch vehicles, or fluid systems is valuable but not strictly required. What you will do Oversee the entire lifecycle of fluid components, from defining requirements through to supporting on-orbit operations. Design, test, integrate, and operate satellite propulsion systems, with a focus on manufacturability and performance. Assist with manufacturing, integration, and testing of propulsion systems in both cleanroom and factory environments. Develop and refine design criteria to ensure successful delivery of flight hardware and test equipment. Take on additional related tasks as assigned. Location This role is based at Astranis headquarters in San Francisco.

Astranis is at the forefront of satellite technology, designing and manufacturing advanced satellites for high orbits that expand humanity's reach into the solar system. Our satellites provide dedicated, secure networks to a diverse clientele, including large enterprises, sovereign governments, and the US military. With five satellites currently in orbit and many more scheduled for launch, we are managing a substantial backlog exceeding $1 billion in commercial contracts.As a leading satellite communications partner, we excel in meeting the stringent requirements of our clients concerning uptime, data security, network visibility, and customization. Backed by over $750 million in funding from renowned investors such as Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 dedicated engineers and entrepreneurs operates out of our expansive 153,000 sq. ft. headquarters located in Northern California, USA.Role OverviewIn the capacity of Propulsion Manufacturing Engineer, you will play a pivotal role in overseeing the production of the propulsion subsystem for our high-orbit satellites. Your responsibilities will include the assembly of propulsion components into a subsystem and the integration of that subsystem onto the satellite vehicle. This position is highly collaborative, requiring you to meet both stakeholder and industry standards while adhering to aggressive cost and schedule targets.Key ResponsibilitiesOversee the production of propulsion subsystems for high-orbit satellite applications.Design, build, or source all tooling and equipment necessary for the assembly of propulsion components and subsystems.Lead factory infrastructure improvements to enhance satellite production capabilities.Develop manufacturing processes that comply with rigorous internal and external standards.Collaborate closely with cross-functional teams to ensure timely delivery and quality of the subsystems.Participate in recruitment and hiring efforts to expand our dynamic team.QualificationsBachelor's Degree in Engineering or a related field.Experience in manufacturing or engineering roles, preferably in the aerospace sector.Strong problem-solving skills and the ability to work under tight deadlines.Excellent communication and teamwork abilities.

Join Astro-Mechanica as a Propulsion Technician in our San Francisco office. In this dynamic role, you will be instrumental in the development and testing of propulsion systems for our cutting-edge aerospace projects. Collaborate with a talented team of engineers and scientists to innovate, troubleshoot, and ensure the highest standards of performance in our propulsion technologies.

Astranis Space Technologies Corp. is at the forefront of building cutting-edge satellites designed for high orbits, significantly expanding humanity's presence in the solar system. Our satellites deliver dedicated, secure networks to a diverse clientele—including large enterprises, sovereign governments, and the US military. With five satellites successfully operational and many more slated for launch, we are managing an impressive backlog exceeding $1 billion in commercial contracts.We are recognized as the preferred satellite communications partner, especially for clients with high standards for uptime, data security, network visibility, and customization. Backed by over $750 million in funding from distinguished investors, including Andreessen Horowitz, Blackrock, and Fidelity, our growing team of 450 skilled engineers and entrepreneurs operates from our expansive 153,000 sq. ft. headquarters in Northern California, USA.Internship Overview This internship is typically a twelve-week, hourly role aimed at students currently enrolled in a four-year university program. As a Propulsion Engineer Intern, you will tackle challenging projects that are critical to our mission. We pride ourselves on providing every team member, regardless of experience level, with the opportunity to contribute meaningfully to complex tasks. Many of our past interns have played key roles in designing and testing hardware/software for our satellites and have transitioned into full-time positions within our company.

Astranis is looking for a Senior Propulsion Engineer to lead the design, construction, and testing of propulsion systems for its advanced satellites in San Francisco. This position plays a key part in developing new propulsion solutions and improving system performance for high-orbit missions. What you will do Drive the full lifecycle of propulsion system development, from initial design through build and testing. Develop new solutions to enhance propulsion system performance for Astranis satellites. Mentor and guide junior engineers on technical projects and day-to-day work. Support the assembly and production of satellites that expand network access to underserved regions. Role focus This role centers on hands-on engineering and technical leadership. The Senior Propulsion Engineer’s work has a direct impact on the reliability and performance of satellites that serve commercial, government, and military clients.

About Poseidon Aerospace:Poseidon Aerospace specializes in the design and operation of unmanned aircraft for both commercial logistics and defense applications. Our premier fleet includes two remarkable fixed-wing platforms: the Heron, a state-of-the-art seaplane, and the Egret, a Short Takeoff and Landing (STOL) aircraft, capable of carrying a payload of up to two tons across distances exceeding a thousand nautical miles. We are proud to be headquartered in San Francisco, with additional offices in Washington, DC, and Maine.As a Propulsion Engineer at Poseidon Aerospace, you will play a pivotal role in selecting, integrating, and validating powerplants across our diverse fleet, which includes MoGas, AvGas, and turboprop systems. Your expertise will contribute to the development of propulsion solutions that are not only reliable and efficient but also seamlessly integrated into our aircraft systems.

Astranis is at the forefront of satellite technology, crafting advanced satellites designed for high orbits that extend humanity's reach into the cosmos. Our satellites currently deliver dedicated, secure networks to a diverse range of sophisticated clients, including major corporations, sovereign governments, and the U.S. military. With five satellites successfully launched and many more on the horizon, we are actively managing a commercial contract backlog exceeding $1 billion.Recognized as the premier satellite communications partner for clients with stringent demands for uptime, data security, network visibility, and customization, Astranis has garnered over $750 million in funding from top-tier investors, including Andreessen Horowitz, Blackrock, and Fidelity. Our headquarters in Northern California spans 153,000 square feet, where a talented team of 450 engineers and entrepreneurs designs, builds, and operates our cutting-edge satellites.Propulsion Test Team LeadAs the Propulsion Test Team Lead, you will spearhead the testing and fueling of our propulsion systems. You will guide and further develop a team of elite propulsion test engineers and technicians to ensure successful mission outcomes.Role ResponsibilitiesLead a team of propulsion test engineers and technicians responsible for testing satellite propulsion systems, including managing hiring and direct reports.Establish and uphold quality standards and processes for effective verification of unit-level and system-level hardware. Analyze non-conformances to identify root causes and formulate corrective action plans for system enhancements.Oversee daily propulsion test operations, including developing processes to allocate and monitor work across production and development testing programs.Foster a culture of safety and quality throughout the work environment.Assess proposed designs for testability and collaborate closely with design engineering teams to facilitate factory output growth targets of up to 24 vehicles annually.Develop, maintain, and communicate detailed schedules, ensuring team members and stakeholders are informed of tasks and deadlines while identifying and acquiring necessary resources.Manage the test infrastructure required for current and next-generation propulsion systems, including factory layout, safety equipment, and test beds.Engage hands-on with flight hardware alongside your team to guarantee mission success.Develop ironbirds (test beds) for conducting flight-like development and qualification testing.

LOCATION:This role is on-site in San Francisco and Santa Clara. You will need to be in the Santa Clara office for at least two days until our San Francisco office opens in Q1 2026. After that, occasional travel to Santa Clara may be required, approximately once a week or as needed.ROLE OVERVIEW:Join us as a hybrid Sales Engineer / Solutions Architect, acting as the crucial link between Sales, Product, and Post-Sales. This hands-on role is ideal for someone who thrives on:Designing innovative solutions to address product gaps and edge cases.Engaging in in-depth technical discovery alongside Account Executives (AEs).Crafting and implementing tailored workflows, integrations, and configurations.Assisting post-sale onboarding teams with advanced implementation scenarios.Conveying customer needs into precise product requirements, representing the “voice of the customer.”Proactively prototyping solutions utilizing Reevo’s APIs, workflows, automations, and data models.This position deviates from the typical Sales Engineer role, combining technical strategy, solution design, light implementation, and cross-functional collaboration with Product and Customer Success.WHAT YOU WILL DO:Pre-Sale (Sales Engineering)Collaborate with AEs throughout early and late-stage cycles to deliver technical discovery, architecture diagrams, and strategic solutions.Create and demo customized workflow prototypes, automations, and data models to mitigate deal risks.Identify and recommend workarounds for product gaps leveraging Reevo’s modular platform.Lead the technical win encompassing security, compliance, integrations, and implementation feasibility.Contribute to RFP responses and high-fidelity technical points of view.Implementation (Solutions Architecture)Collaborate with Onboarding/Implementation Managers to devise feasible customer deployment plans.Configure advanced workflows, sequences, conversation AI models, and integrations.Assist in building connectors (Salesforce, HubSpot, calendars, enrichment APIs, etc.).Translate complex customer go-to-market workflows (SDR → AE → AM → CS) into Reevo-specific flows.

Astranis is at the forefront of satellite technology, creating advanced satellites that extend humanity’s reach into the cosmos. Our satellites are designed to provide dedicated, secure networks for discerning clients worldwide, including major corporations, government agencies, and the US military. With five satellites currently in orbit and several more scheduled for launch, we are poised to fulfill over $1 billion in commercial contracts.As the trusted satellite communications partner for clients with high standards for uptime, data security, network visibility, and customization, Astranis has raised over $750 million from leading investors like Andreessen Horowitz, Blackrock, and Fidelity. Our team of 450 engineers and innovators works from our 153,000 square foot headquarters in Northern California, USA, to design, build, and operate our cutting-edge satellites.Position OverviewAs a Senior Technical Project Manager at Astranis, you will be pivotal in steering the propulsion, mechanical, and thermal engineering efforts across all our projects. Your role will encompass guiding projects from inception to completion, ensuring alignment with objectives, adherence to timelines, and budget compliance. This position requires extensive collaboration across various functions and the ability to adapt to challenges throughout the project lifecycle.

Astranis is at the forefront of satellite technology, developing advanced satellites for high orbits that extend humanity's reach into the solar system. Our satellites provide dedicated and secure networks to sophisticated clients globally, including large enterprises, government agencies, and the U.S. military. With five satellites successfully in orbit and many more set to launch, we are currently managing a backlog exceeding $1 billion in commercial contracts.As the preferred satellite communications partner for clients with rigorous requirements for uptime, data security, and customization, Astranis has successfully raised over $750 million from top-tier investors such as Andreessen Horowitz, Blackrock, and Fidelity. Our headquarters, spanning 153,000 square feet in Northern California, is home to a talented team of 450 engineers and entrepreneurs dedicated to designing, building, and operating state-of-the-art satellites.Role: Propulsion Technician, Tube BendingIn the role of Propulsion Technician, you will play a crucial part in the production of propulsion hardware. Your responsibilities will include operating and maintaining a cutting-edge CNC tube bender and various metal fabrication tools, as well as overseeing an inventory of space hardware.Program, operate, troubleshoot, and maintain a CNC Tube Bender along with other metal fabrication tools for aerospace applications.Prepare metal components for welding and/or assembly into micro-GEO satellites.Manage inventory and ensure material traceability for thousands of propulsion components.Conduct dimensional and quality inspections on propulsion components and assemblies.Adhere to processes and work instructions, complete necessary documentation, and provide constructive feedback.Identify and procure capital equipment, manage installations, and perform commissioning.Be versatile within the factory - learn new skills, assist other teams, and innovate the use of your talents.

Astranis is at the forefront of satellite technology, crafting advanced satellites designed for high orbits that significantly extend humanity’s reach into the solar system. Our satellites provide dedicated and secure networks to sophisticated clients worldwide, including large enterprises, sovereign governments, and the US military. With five satellites successfully in orbit and numerous upcoming launches, we have a robust backlog exceeding $1 billion in commercial contracts.Astranis has established itself as the go-to satellite communications partner for clients with stringent demands regarding uptime, data security, network visibility, and customization. Backed by over $750 million from premier investors such as Andreessen Horowitz, Blackrock, and Fidelity, our talented team of 450 engineers and entrepreneurs works diligently to design, build, and operate our satellites from our expansive 153,000 sq. ft. headquarters in Northern California, USA.Propulsion Test TechnicianAs a Propulsion Test Technician, you will play a pivotal role in ensuring that the hardware used to maneuver our satellites in orbit is fully operational. You will transition designs from the engineering desk to the testing stand, meticulously checking every valve, thruster, and propellant line to guarantee they are flight-ready. If you possess a passion for high-pressure systems and uphold a 'zero-fail' mentality, you will thrive in this dynamic environment.Key ResponsibilitiesExecute Proof and Burst testing utilizing high-pressure pneumatic (GN2, GHe) and hydrostatic systems.Conduct ultra-sensitive leak detection using helium sniffers or vacuum detection methods.Perform comprehensive functional tests on solenoid valves, regulators, and transducers, verifying cracking pressures and flow coefficients.Design and build custom test manifolds and ground support equipment (GSE).Install and calibrate pressure transducers, thermocouples, and flow meters; interface with DAQ systems to capture real-time test data.Diagnose the root causes of 'no-go' test outcomes by distinguishing between actual hardware failures and test setup anomalies.Uphold a pristine cleanroom environment and adhere strictly to safety protocols concerning high-pressure gases and hazardous propellants.Take ownership of the propulsion test cell, ensuring a clean, organized workspace in accordance with 5S standards.

Join the dynamic team at Equinox as a Cycling Instructor in San Francisco! We are looking for passionate individuals who are dedicated to inspiring and motivating others through fitness. As a Cycling Instructor, you will lead engaging cycling classes, provide exceptional customer service, and create a welcoming environment for all members. If you thrive in a fast-paced environment and have a love for cycling, we want to hear from you!

About DayDreamDayDream is revolutionizing the dental industry by empowering dentists to efficiently manage their revenue cycles. Operating in a sprawling $165 billion market, our innovative solutions streamline the intricate processes of insurance verification, claim submissions, denial appeals, and patient billing, ultimately helping dentists reclaim 10-20% of their lost revenue.The healthcare landscape is notorious for being inefficient, costly, and confusing, and we aim to change that narrative. With a deep commitment to transparency and automation, we support dental practices across America, enabling them to focus on what they love: providing exceptional care to their patients.Our successful funding journey, including $6.5 million from notable investors like 8VC, Nat Friedman, and Daniel Gross via AI Grant, underscores the market's trust in our vision.

About SemgrepSemgrep is at the forefront of code security for developers, enabling seamless innovation without hindrance. Our platform allows teams to identify, flag, and resolve genuine issues before deployment, utilizing a security system that evolves alongside development. With Semgrep, code is secured as it is created, offering developers the necessary guardrails to accelerate their work while maintaining security. Our solution is built for developers and trusted by security professionals, integrating smoothly into their workflows to provide timely fixes while ensuring visibility and control for security teams. Semgrep leverages AI to enhance its capabilities, dramatically reducing false positives and prioritizing actionable vulnerabilities, as affirmed by 95% of security reviewers across 6 million findings. We are committed to achieving zero false positives, helping AppSec teams to reduce false positive triage by 80% across Code and Supply Chain, significantly alleviating backlog issues.Founded in San Francisco and backed by renowned investors such as Menlo Ventures, Felicis Ventures, Lightspeed Venture Partners, Redpoint Ventures, and Sequoia Capital, Semgrep has received recognition from Gartner in Application Security Testing and is trusted by leading companies like Snowflake, Dropbox, and Figma. Discover more at semgrep.dev.About the RoleAs a Senior Program Analysis Software Engineer, you will be instrumental in driving the core functionality of our Semgrep engine, which meticulously analyzes source code to uncover significant real-world security vulnerabilities. You will collaborate closely with our Security Research team to enhance the detection capabilities for a diverse array of programming languages, employing cutting-edge static analysis and program analysis techniques. Your role will also involve quantifying and optimizing the engine's performance using data-driven methodologies across various platforms, including our Managed Scanning service and AI Agents via MCP.Our technology stack includes OCaml, Python, OpenTelemetry, and Datadog. While prior experience with OCaml is preferred, it is not mandatory, provided you are eager to learn quickly and possess a background in other functional programming languages.This is a hybrid position, requiring you to be present in our San Francisco, New York, Boston, or Denver offices at least three days a week, depending on your team.CompensationThe anticipated annual salary range for this role is between $160,000 and $207,000 USD. The actual salary will be determined based on various factors, including job-related skills, experience, qualifications, location, internal equity, and market conditions. In addition to the base salary, total compensation may also include equity...

Join mercor as a Research Engineer specializing in benchmarking, evaluations, and failure analysis. In this pivotal role, you will contribute to the development and enhancement of our innovative products, ensuring they meet the highest standards of performance and reliability. Collaborate with cross-functional teams to analyze data and drive improvements in our engineering processes.

Our MissionAt Reflection AI, our mission is to develop open superintelligence accessible to everyone.We are creating open weight models tailored for individuals, agents, enterprises, and even nation-states. Our talented team of AI researchers and innovators hails from prestigious organizations such as DeepMind, OpenAI, Google Brain, Meta, Character.AI, Anthropic, and more.The RoleWe are seeking a Full-Cycle Technical Recruiter to take full ownership of the recruitment process from sourcing to closing for outstanding Research talent. This role will involve collaborating directly with our leadership team to build exemplary teams around the models we are developing, playing a vital role in expanding our technical organization.What You'll DoManage the complete recruitment cycle for research positions across our technical teams.Identify top-tier talent through professional networks, industry conferences, sourcing platforms, code repositories, engineering communities, open-source contributions, and technical networks.Work closely with hiring managers to define job requirements, success profiles, and evaluation metrics.Build and sustain robust candidate pipelines, fostering long-term relationships with passive technical professionals.Skillfully manage competitive offer negotiations to secure top talent in a dynamic market.What We're Looking ForA minimum of 5 years of full-cycle technical recruiting experience with a strong focus on AI/ML research recruitment, ideally within startup or high-growth environments.Hands-on experience recruiting for, or within, cutting-edge AI labs with proven sourcing capabilities; familiarity with significant research papers, essential conferences, and established connections in the research community.Demonstrated success in identifying and securing research talent before they enter the broader job market.In-depth understanding of the AI research landscape, academic career trajectories, and the motivators for research professionals.Comfort with evaluating research profiles, publications, and academic credentials.Experience interfacing with academic institutions, research labs, and scientific communities.What We Offer:We believe in building a foundation for truly open superintelligence. Joining Reflection AI means being part of a compact, talent-rich team that is committed to innovation.

JOIN THE REVOLUTION AT MITHRLImagine a world where groundbreaking medicines reach those in need within months, not years, and where scientific innovations occur at lightning speed.Mithrl is pioneering the world's first commercially available AI Co-Scientist, a transformative discovery engine that swiftly converts complex biological data into actionable insights. By posing questions in natural language, scientists receive rapid, meaningful analyses, innovative targets, hypotheses, and ready-to-file reports.OUR IMPACT IS EVIDENT:Achieved 12X year-over-year revenue growthTrusted by top biotech firms and major pharmaceutical companies across three continentsCatalyzing substantial advancements from target identification to patient outcomes.ROLE OVERVIEWWe are seeking a talented Machine Learning Engineer to focus on Analysis and Simulation to construct the foundational analytical and reasoning framework for the Mithrl AI Co-Scientist. Your contributions will shape how our AI interprets biological datasets, formulates scientific conclusions, and integrates simulation tools for drug discovery.You will create reusable analysis modules that will be applied across all datasets and design complex workflows that merge statistical analysis, biological reasoning, and computational modeling. Additionally, you will explore and optimize simulation tools for small molecule discovery, including ADMET predictions, docking scores, Boltzmann generators, and various computational chemistry engines.This position is critical in enhancing the intelligence of the AI Co-Scientist. If you possess a solid foundation in machine learning, computational biology, and scientific analysis workflows, and are eager to influence how AI interprets biological systems, we invite you to apply.RESPONSIBILITIESDevelop AI-powered analysis agents capable of performing complex biological reasoning across diverse datasets.Create a standardized analysis suite for each dataset, encompassing modules for differential expression, pathway analysis, feature importance, clustering, scoring, enrichment, and mechanism-of-action interpretation.Engineer multi-step workflows integrating machine learning models, statistical logic, and biological expertise to yield high-confidence insights.Design and implement intelligent reasoning strategies that enable Mithrl to execute numerous analyses per dataset.