Los Angeles startups hiring
software engineers.
34 startups and scale-ups in Los Angeles are hiring software engineers right now, with 143 live roles between them, 112 of them opened in the last 30 days. Pick the ones you want and Haystack's AI agent fills in each employer's application for you.
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- GMGeneral MatterStartup · Hybrid24 roles

- ALAltruistScale-up · 201-500 staff18 roles

- RERevelScale-up · Office-first17 roles
- FRFreeformStartup · Hybrid14 roles

- HEHermeusStartup · 201-500 staff13 roles

- ANAnysignalStartup9 roles

and 28 more companies on the list
34 companies hiring now
Ranked by live roles (backend, full-stack, frontend, mobile, DevOps, security and QA engineers, and engineering managers). Every company is a startup or scale-up; recruitment agencies are left out. Press Auto apply on any role and Haystack's AI agent fills in that employer's form for you.
The top 34 of 34 companies, most live roles first.
General Matter aims to restore America's ability to produce nuclear fuel and make nuclear energy the most affordable source of baseload power.
- Design Reliability EngineerHybrid · Opened 5 days agoAuto apply
- Information Systems Security ManagerHybrid · Opened 5 days agoAuto apply
- Summer 2027 Internship - Information Security EngineerHybrid · Opened 11 days agoAuto apply
Altruist aims to make independent financial advice better, more affordable, and accessible to everyone.
- Staff Back End Engineer, DataHybrid · Opened 6 days agoAuto apply
- Staff Back End EngineerHybrid · Opened 2 weeks agoAuto apply
- Cloud Engineering ManagerHybrid · Opened 2 weeks agoAuto apply
Revel builds software that interfaces with complex physical systems across aerospace, robotics, energy, and advanced manufacturing to help engineers build, test, and deploy critical systems.
- Internship: Full Stack Software EngineerOn-site · Opened 3 weeks agoAuto apply
- Internship: Embedded Software EngineerOn-site · Opened 3 weeks agoAuto apply
- Internship: Forward Deployed Engineer, TestOn-site · Opened 3 weeks agoAuto apply
Freeform develops AI-native manufacturing systems to produce industrial-scale parts at the speed of human ideation.
- Principal Software EngineerHybrid · Opened 2 weeks agoAuto apply
- Software Engineer (New Grad Summer 2027)Hybrid · Opened 2 weeks agoAuto apply
- Software Engineer (Full Stack Enterprise)Hybrid · Opened 2 weeks agoAuto apply
Hermeus develops reusable, hypersonic aircraft to reduce global travel times and provide high-speed systems for national security.
- Senior Dev Ops EngineerOn-site · Opened 2 days ago
- Senior Build Reliability EngineerOn-site · Opened 2 days ago
- Software Engineer - Internal ApplicationsOn-site · Opened 2 days ago
AnySignal unifies communication, navigation, and sensing on a single platform to provide spectrum supremacy for space explorers and allied forces.
- VP of Engineering, Ground HardwareOn-site · Opened 3 days agoAuto apply
- RF Test EngineerOn-site · Opened 3 days agoAuto apply
- Associate Embedded Software EngineerOn-site · Opened 11 days agoAuto apply
First Resonance provides an AI-powered manufacturing execution system (MES) to streamline and optimise production processes for hardware manufacturers.
- Forward Deployed Engineer, IntegrationsOn-site · Opened 4 weeks agoAuto apply
- Forward Deployed Engineering LeaderOn-site · Opened 4 weeks agoAuto apply
- Forward Deployed Software Engineer (Los Angeles)On-siteAuto apply
MyTime aims to become the world’s leading appointment scheduling and retail commerce platform, offering cloud-based business management software.
- Senior iOS Engineer (Remote)Remote · Opened 7 weeks agoAuto apply
- Engineering ManagerRemote · Opened 7 weeks agoAuto apply
- Lead iOS Engineer & Mobile Team LeadRemote · Opened 7 weeks agoAuto apply
Vastai specialises in developing foundational models for generative AI, including large language models and multimodal models for advanced AI applications.
- QA Engineer (Software)On-site · Opened 7 weeks agoAuto apply
- C++ Software EngineerOn-site · Opened 7 weeks agoAuto apply
- Senior Infrastructure EngineerOn-site · Opened 7 weeks agoAuto apply
Nox Metals provides high-performance metals and alloys, cut to spec, using software and automation to reindustrialize America.
- Full Stack EngineerOn-site · Opened 2 weeks agoAuto apply
- Infrastructure EngineerOn-site · Opened 2 weeks agoAuto apply
- Director of EngineeringOn-site · Opened 2 weeks agoAuto apply
Tatari provides a data-driven TV advertising platform that helps brands measure and optimise their advertising spend across all channels.
- Staff QA EngineerHybrid · Opened 2 weeks agoAuto apply
- Head of SecurityHybridAuto apply
- Senior Backend EngineerHybridAuto apply
Lens aims to prevent traffic accidents and save lives by detecting hazards on highways in real-time using AI.
- Systems EngineerOn-site · Opened 5 weeks agoAuto apply
- Security EngineerOn-siteAuto apply
- VP of EngineeringOn-siteAuto apply
CHAOS Industries redefines modern defense by leveraging advanced technology to empower warfighters, commercial air operators, and border protection teams.
- GNC Software EngineerHybrid · Opened 4 days agoAuto apply
- Information Systems Security EngineerHybrid · Opened 2 weeks agoAuto apply
Flip is a platform empowering creators to host virtual events, workshops, and courses, connecting them with audiences and monetising their expertise.
- Staff Software Engineer Hybrid · Opened 4 days agoAuto apply
- Head of Security & AI GovernanceHybrid · Opened 4 days agoAuto apply
HeyGen aims to make visual storytelling accessible to all by providing a platform that uses generative artificial intelligence to create videos.
- Software Engineer, GPU PerformanceHybrid · Opened 4 weeks agoAuto apply
- Backend Engineer - InfrastructureHybridAuto apply
BuildOps provides a software solution for commercial contractors to manage operations, improve efficiency, and increase profitability through an AI-native platform.
- Staff Software EngineerHybrid · Opened 5 weeks agoAuto apply
- Senior Software EngineerHybrid · Opened 7 weeks agoAuto apply
Suno is an AI music generation company making music creation accessible to everyone through AI-powered tools.
- Senior / Staff Software Engineer, AndroidOn-site · Opened 7 weeks agoAuto apply
- Software Engineer, AndroidOn-site · Opened 7 weeks agoAuto apply
ACI Infotech designs, builds, and runs data, AI, and cloud systems for businesses, focusing on digital transformation and optimising operations.
- Senior Full Stack .NET DeveloperHybrid · Opened 3 weeks ago
Cast AI provides an AI-powered platform that optimises Kubernetes cloud infrastructure for cost, performance, and security.
- Developer Relations & Experience EngineerHybrid · Opened 12 days agoAuto apply
CreatorIQ provides an influencer marketing platform that helps brands and agencies scale their creator marketing efforts for measurable growth.
- Director of Engineering, Agentic AI and ArchitectureHybrid · Opened 3 weeks agoAuto apply
Crexi streamlines commercial real estate transactions by providing an online marketplace, auction platform, and data intelligence service, leveraging AI.
- Manager, Software EngineeringHybrid · Opened 4 days agoAuto apply
GITAI develops space robots to provide safe and affordable labour in space for in-orbit servicing, lunar exploration, and other space-related tasks.
- Field-Deployed Software Engineering Intern – Fall 2026 / Spring 2027Hybrid · Opened 4 weeks agoAuto apply
Naked Wolfe designs bold and statement footwear for individuals who want to be seen, cultivating a global community.
- Junior Footwear Designer & Product DeveloperOn-site · Opened 3 weeks agoAuto apply
Outset Medical revolutionises kidney care with its Tablo hemodialysis system, aiming to improve accessibility and efficiency for patients and healthcare providers.
- Field Service Engineer II (Los Angeles, CA)Hybrid · Opened 2 weeks agoAuto apply
To make quantum technology useful by building infrastructure software and hardware to power quantum computing and quantum sensing.
- Senior Cloud Platform EngineerOn-site · Opened 2 days ago
Speechify aims to remove barriers to learning and productivity through its Voice AI Assistant technology.
- Tech Lead, Android Core Product - Los Angeles, CA, USAHybrid · Opened 3 weeks agoAuto apply
Capsule is a pharmacy that delivers prescriptions to customers' homes, making medication management easier and more accessible.
Databricks empowers customers to solve data problems by providing a unified data and AI platform that supports analytical and operational workloads.
Replied to 75% of the applications Haystack's agent sent
Everyday Dose is a functional coffee company aiming to help people feel better, think clearer, and perform at their best, without the crash of regular coffee.
Fuser aims to empower creatives by providing tools that push the boundaries of creative possibilities and enable them to shape the future of their craft.
- Jr. Full Stack EngineerOn-site · Opened 7 weeks agoAuto apply
Outpost provides publishing systems for independent publishers, helping them grow their audience, monetise their content, and save time and money.
- VP of SoftwareHybridAuto apply
Promise Studios is a film and TV studio using generative AI and proprietary workflows to reimagine entertainment and AI-powered storytelling.
- Pipeline Technical Director, AYON & Data I/OOn-site · Opened 6 weeks agoAuto apply
Tessera Labs aims to modernise global enterprises by using AI to automate complex business workflows and transform fragmented business systems.
- Oracle Fusion Enterprise ArchitectHybrid · Opened 7 weeks agoAuto apply
TRM Labs builds an intelligence platform that helps crimefighters disrupt criminal networks exploiting frontier technologies to harm people.
- University Grad – Product Engineer (2026-2027) - Los Angeles or San FranciscoHybrid · Opened 7 weeks agoAuto apply
Replied to 50% of the applications Haystack's agent sent
Every startup has its own application form.
Applying to ten of these companies means ten careers sites and ten forms, each asking the same things in a different order. Haystack's AI agent fills them in from your CV and your answers, and asks you when a question needs you.
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Interview rate: candidates invited to interview within 14 days of their first application. Fields measured across applications the agent sent in the last 30 days. Hours back assume 15 minutes an application by hand.
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Questions about this list
Which startups are hiring software engineers in Los Angeles?
As of October 2026, 34 startups and scale-ups in Los Angeles are hiring software engineers, with 143 live roles between them. The most are at General Matter, Altruist, Revel, Freeform, Hermeus. The full list on this page is rebuilt every day from the employers' own careers sites.
How is this list made?
Haystack reads the careers sites of more than 30,000 employers every day. This list takes the live roles in Los Angeles for backend, full-stack, frontend, mobile, DevOps, security and QA engineers, and engineering managers at companies recorded as startups or scale-ups, leaves out recruitment agencies, and ranks the companies by how many of those roles they have open.
Can I apply to all of these at once?
Not in one click, and you wouldn't want to. With Haystack Auto Apply you upload your resume once and pick the roles you want; Haystack's AI agent then fills in and submits each employer's own application form, asks you when a question needs your answer, and every reply lands in your Haystack inbox. Nothing is sent without your say-so.
Your resume once.
Then every role that fits.
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