Software Engineer
MindFort AI (YC X25)
MindFort is an AI-powered penetration testing platform that delivers human-level security testing at machine speed. We’re building fully autonomous AI agents that can find, exploit, and patch complex vulnerabilities in web applications at massive scale. Our agents think and act like human penetration testers: they analyze targets, collaborate, and exploit weaknesses — but with the speed and scale only AI can achieve. Security teams are already falling behind with outdated tools and manual processes. AI-generated code is flooding the world faster than humans can secure it. MindFort is closing that gap. Our platform will be critical for organizations building with AI and will redefine how offensive security is done . About the Role: We’re hiring a Founding Software Engineer with a strong focus on backend and AI. You’ll help architect and scale our AI Security Agent systems from the ground up. This is a high-impact, high-ownership role: as one of our earliest engineers, you’ll shape not just our product, but also our engineering culture and standards. You’ll join a high-trust, high-velocity team where decisions are fast, responsibilities are broad, and your work will have an immediate effect on developer experience and product performance. Key Responsibilities: Design and build end-to-end applications using modern LLM frameworks (LangChain, LangGraph, or custom). Architect and maintain scalable backend systems (Python, APIs, Postgres, Docker, Kubernetes). Orchestrate reasoning, prompt flows, and memory mechanisms to build reliable AI agents. Integrate AI models into production environments with real users at scale. Write clean, maintainable backend code and build complex features with performance in mind. Identify and resolve bottlenecks to keep systems fast and resilient. Qualifications Bachelor’s or Master’s in Computer Science (or equivalent experience). Strong software engineering skills with deep Python expertise. Experience with LLMs, AI agents, and AI libraries . Solid knowledge of API design, databases (Postgres), and backend systems . Experience deploying and scaling AI in production. Strong communication skills and proven ability to thrive in small, cross-functional teams. Nice to have: Experience training and serving LLM models. Background in cybersecurity, web vulnerabilities, or security tools. Prior startup or early-stage experience as a software engineer. What You Get: Competitive salary plus founding-level equity. Top-tier health insurance — 100% covered. Regular team lunch & dinners. Unparalleled access to leading AI labs and world-class security teams. #J-18808-Ljbffr
$200k - $300k
...Overview We are seeking highly motivated, collaborative, and technically strong Full Stack Software Engineers to join our Enterprise Technology Application Development team. The selected candidates will play a key role in building and maintaining a portfolio of internal...Suggested- ...Join Pure as a Full Stack Software Engineer. Lead end-to-end features, own complex problems, execute fast in a growing marketplace for rare coins and precious metals. About Pure Pure is building the future of rare coin and precious metal trading. We believe collectors...SuggestedWork at officeRemote workFlexible hours
$150k - $250k
...complex vulnerabilities in web applications at massive scale, moving at the speed of AI-generated code. As a Founding Full-Stack Software Engineer (with a strong focus on backend and AI), you will be crucial in designing and developing their core agent systems and scalable...SuggestedFull timeH1bWorldwideVisa sponsorship$100k - $140k
...Full-Stack Software Engineer Are you passionate about building innovative web applications and using AI to address real-world learning challenges? Do you want to help shape the future of education? PrairieLearn is an early-stage EdTech startup. We are hiring talented...SuggestedFull timeRemote workFlexible hours- ...Melrose Senior Software Engineer | GTM Platform West Hollywood, CA·San Francisco, CA·Full time Company website Apply for Senior Software Engineer | GTM Platform GTM Platform Engineers sit at the intersection of product, growth, sales, and systems. The job is not just stitching...SuggestedFull timeHome officeFlexible hours
$130k - $185k
...Growth Platforms team focuses on building durable technology and AI capabilities that power long‑term enterprise growth. The Software Engineering Director for AI Tooling plays a pivotal role in translating strategy into execution—designing and scaling modern software...Work experience placementSummer holidayWork at officeFlexible hours- ...About Fern: At Fern, we believe every software company should offer a world-class API. We're building the toolkit to make that possible... ...to how a startup scales with visibility into product, engineering, design, and go-to-market. Thinking of founding a startup someday...Work at officeRemote workWork from homeFlexible hours
- ...accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who specialize in software engineering, logical reasoning, STEM, multilinguality, multimodality, and agents; and second, by applying that expertise to help...Full timeFor contractorsRemote workFlexible hours
- ...Software Engineer Location: Menlo Park, CA (Remote) Employment Type: Full-Time Compensation: Competitive salary + equity About Glade.ai Glade.ai is building the future of AI-powered automation for service businesses — transforming how legal, insurance...Full timeWork at officeRemote work
$103k - $155k
...Posting Type Hybrid Job Overview The Advanced Software Engineer designs, builds, and operates cloud-native web applications that power our business. This role blends strong technical skills with a collaborative mindset to deliver secure, scalable, and high-performance...- ...Direct message the job poster from Oho Group Ltd Overview A hugely successful Los Angeles scale-up is on the hunt for a top-tier Software Engineer as a key and foundational hire, with the team set to grow significantly. With a product that is already proving incredibly...
$196k - $245k
...users. We provide the infrastructure and services that enable scalable and reliable safety on Discord. We're looking for a Senior Software Engineer who is capable of handling ambiguous, complex, multi-milestone projects. Our team developed Osprey, the open-source...Full timeWork at officeRelocation package2 days per week- ...Benefits Dental Insurance, Vision Insurance, Medical Insurance Contractor | On-site Job Title Software Engineer Job Description Design, develop, test, and maintain software applications. Collaborate with cross‑functional teams to deliver scalable and efficient solutions...For contractors
$150k - $350k
...for this hire is in Pasadena, CA and requires 5 days per week in-office work. We are looking for a highly skilled and motivated software engineer to build and maintain the visualization software for Cover's concealed weapon detection system. The candidate will join a...Permanent employmentFull timeWork at office- ...We are seeking a highly skilled and experienced Software Engineer to join our dynamic team. The ideal candidate will have a strong background in Ruby on Rails, extensive experience with API development, and expertise in payment system integrations. This role involves collaboration...Full timeWork at officeRemote workMonday to Friday
$117.5k - $157.5k
...Entertainment and ESPN Product & Technology is a global organization of engineers, product developers, designers, technologists, data scientists... ...one of the “World's Most Admired Companies” . Job Summary : Software Engineer II (Salesforce) Role Overview As a Software Engineer...Work experience placementWorldwide$125.8k - $188.8k
...insights and being part of teams that build scalable telemetry solutions that impact millions? We're looking for a Full Stack Software Engineer to join our Unified Telemetry team. This role involves creating seamless and secure solutions and ensuring delivery of exceptional...- ...critical for organizations building with AI and will redefine how offensive security is done . About the Role: We’re hiring a Software Engineer with a strong focus on backend and AI. You’ll help architect and scale our AI Security Agent systems from the ground up. This...Immediate startFlexible hours
$172.14k - $225.1k
...create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Software Engineer II Los Angeles, CA Role Overview Sony Interactive Entertainment LLC seeks a Software Engineer II in Los Angeles, CA to design,...Remote workWork from home$90k - $108k
...Software Engineer We are seeking a Software Engineer who will join our Engineering team. Our team is a small, very talented group of people who strive to produce high quality code. Our team values include collaboration, innovation, transparency, and customer success. This...Flexible hours$190.8k - $267.1k
...data models that are the sources of truth for Reddit. As a Senior Engineer on this team, you’ll be a technical coach and mentor. You’ll... ...experience for hundreds of millions of users across the world. You Have Software development experience in Golang or Python 5+ years of...For contractorsWork experience placementRemote workFlexible hours- ...We are looking for a passionate Software Engineer to design, develop and install software solutions. Software Engineer responsibilities include gathering user requirements, defining system functionality and writing code in various languages, like Java, Ruby on Rails or...Work experience placement
$79k - $119k
...corporations, and government agencies rely on Relativity's legal AI software to securely surface and manage the most relevant and impactful... ...work through Justice for Change. WHAT WE DO At Relativity, engineers don't just write code. They build the systems that power AI‑...Remote workHome office$150k - $220k
...Software Engineer Location: Playa Vista, California (in-person, five days per week) Outpost is pioneering Earth return logistics for space. We’re building vehicles that can return payloads from orbit safely and precisely, enabling faster space-based manufacturing, global...Permanent employmentTemporary workWork at officeLocal areaNight shift- ...and Kylie Jenner. Role Overview We are building a top talent engineering team to support Fashion Nova’s next phase of growth. We have ambitious... ...coming years. We are looking for a self-driven entry-level software engineer to join our Fashion Nova applications team. As an...Summer workLocal areaImmediate startWorldwideMonday to Friday
- ...in Silicon Beach and is proud to be recognized by Built in LA as a Best Place to Work in Los Angeles. The Opportunity As a Software Engineering intern at Centerfield, you’ll work directly with our Engineering team. You’ll help create online and offline customer acquisition...InternshipWork at officeLocal areaNight shift3 days per week
- ...Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform... ...initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the world's leading...Work at officeLocal areaRemote workWork from homeWorldwideFlexible hours
$148.7k - $199.4k
...Senior Software Engineer Job ID 10150849 Location Glendale, California, United States / Bristol, Connecticut, United States Business Disney Entertainment and ESPN Product & Technology Job Summary Content Platforms Engineering is hiring a Senior Software Engineer to help...Local area- ...We are seeking a hands‑on Staff Software Engineer to drive high‑impact initiatives at the forefront of emerging technologies and unlock enterprise‑wide capabilities. In this role you’ll lead rapid prototyping efforts, build scalable proofs‑of‑concept, and shape the technical...
- ...the company | Senior Software Engineer | Los Angeles, CA (HYBRID) / Hyderabad, India | 1 LA + 2 Hyderabad I'm Julien — I lead Product Engineering at Oaktree. My background is tech, not finance: startups, Meta, data infrastructure companies. I'm hands‑on and building a...Work at office
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