Software Engineer
MindFort AI (YC X25)
Software Engineer
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Security teams are already falling behind with outdated tools and manual processes.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.
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 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.
- Lunch included regularly plus ad hoc team dinners.
- Unparalleled access to leading AI labs and world-class security teams.
- Unlimited, flexible PTO.
$50k - $120k
...We are seeking a Full Stack Software Engineer to join a talented team providing critical mission-related support to a U.S. Government customer. This is a full-time opportunity to work with an award-winning team on AI/ML-driven capabilities within the Intelligence Community...SuggestedFull timeContract workWork from homeRelocation package$115k - $140k
...Full Stack Software Engineer - MERN Stack United States Boom Entertainment is redefining the way fans engage with sports through innovative, high-quality sports products. Our flagship app, Boom Sports, delivers a fast, fun, and accessible Daily Fantasy Sports experience...SuggestedHome office- ...This status quo runs counter to Bitcoin’s core ethos of self-sovereignty and security. What the role involves: As a Full Stack Software Engineer at IOG, you’ll do more than just write code—you’ll help shape the future of technology. You’ll be building high-quality...SuggestedRemote work
$75k - $100k
...with customers across the United States. Role Overview Requirements Collaborate with the engineering team to design, implement, and deploy features and bug fixes across the full software stack Develop real-time data visualization tools and dashboard builder Ensure high...SuggestedLocal areaRemote workFlexible hours$114.2k - $189.08k
...premiums for you and your family . You'll join a team of innovative engineers committed to innovation and excellence. We prioritize... ...development, personal well-being, and long-term success. As a Software Engineer at S5 Analytics, you will play a key role in building...SuggestedFull timeFlexible hours- ...Job Title: Full-Stack Software Engineer Location: Sunrise, FL (3 days onsite & 2 days onsite) Job Type: Contract C2C, W2 and FTE Candidates has to complete the Berribot Interview by today or tomorrow This is an exciting team with great opportunities to solve...Contract work
- ...work will directly impact users on day 1 - our user base depends on our product daily. We build with AI, not around it. Our engineering team uses Claude Code and agentic coding tools as our primary development environment. If you're spending your days directing AI...
- ...speed, rigor, and strong technical judgment. This is a role for engineers who want significant ownership and who care intensely about... ...collaboration. Requirements 1+ years of experience shipping high-quality software in production, ideally using Node.js, React, JavaScript, and...Remote workFlexible hours
- ...building the future of Design for Manufacturing . We’re building software that bridges the gap between design and manufacturing. We help... ...of a hungry, ambitious, and exceptionally talented full-stack engineer to join our early-stage engineering team who’s passionate about...Flexible hours
- ..., and the needs of our Veterans and First Responders. Job Overview: Patriot Mobile is seeking a skilled .NET Full Stack Software Engineer. The successful candidate should possess strong skills in Node.js, HTML5, CSS, JavaScript, PostgreSQL, Azure hosting, and have...Full time
- ...will: Join an Agile squad of developers and automation engineers supported by a product manager and scrum master, and collaborate... ...: ~8+ years of progressive development experience as a Software Engineer ~ Hands-on development experience in Node, React, and...Temporary work
$130.5k - $171k
...-critical products for customers across energy trading, utilities, agriculture, and other industries. As a Full-Stack Weather Software Engineer, you'll work with our weather model output to build and deploy customer products and the frontend systems they're delivered through...For contractorsWork at office3 days per week- ...innovators, operators, and technologists passionate about setting a new standard in maternity care. We are looking for a Full Stack Software Engineer to join our engineering team to work on product features utilizing Python and React. This person will possess solid technical...Remote work
$130k - $150k
...Join to apply for the Full Stack Software Engineer role at Orchids Join to apply for the Full Stack Software Engineer role at Orchids This range is provided by Orchids. Your actual pay will be based on your skills and experience — talk with your recruiter to...Full time- ...directly impact how teams build products. As an early member of our engineering team, you’ll be responsible for: architect, build, and own new... ...: can communicate clearly and empathetically has 3+ years software engineering experience is willing to quickly learn new...
$15 per hour
...still operates without the automated feedback loops that modern software teams rely on. Without real-time observability, issues are... ...Partners and Andreessen Horowitz and with a rapidly growing team of engineers, scientists, construction veterans, and Enterprise go-to-...For contractorsWork at officeRemote workHome officeFlexible hours- ...Job Description Job #217851 Chipton-Ross is seeking a Full-Stack Software Engineer (Level 3) for a contract opportunity in Chantilly, VA, Aurora, CO or Mesa, AZ BASIC QUALIFICATIONS (REQUIRED SKILLS/EXPERIENCE) ~ Bachelor's Degree in an engineering discipline...Full timeContract workLocal areaDay shift
- ...helps organizations design, build, and deliver enterprise-class software and analytics platforms. Leveraging expertise in AI,... ...growing and have immediate opportunities for Full Stack Software Engineers to work with our premier clients. In this role, you will be responsible...Immediate start
- ...Full Stack Software Engineer Location: Remote (Must be able to work EST hrs.) Duration: Temp To Hire NO VISA or C2C Required: JS with heavy emphasis on TypeScript and React. Experience automating manual processes and having a proactive mindset to be able to bring...Temporary workRemote work
- ...Full-Stack Software Engineer We are seeking a resourceful, focused and experienced individual to join our team as a full-stack software engineer. You will be part of a team that actively collaborates with business peers to develop Java-based applications used by top...Remote work
- ...Full Stack Software Engineer Patlytics is the fastest-growing AI-native patent intelligence platform, transforming how IP is protected and monetized at scale. Our advanced LLMs and generative AI engine—custom-built for intellectual property—power every phase of the...Work experience placementImmediate startRemote work
- Job Title Job Information Job Opening ID 5186 Date Opened 04/08/2019 Job Type Contract Language Skills English Location Beaverton, Oregon Industry IT Services City Beaverton State/Province Oregon Country United States Zip/Postal Code 97...Contract work
- ...iDirectGov's hubs, satellite routers and network management software address the growing complexity of deploying and managing global... ...skills to work with our team of smart, creative, and dedicated engineering team-members. This position is based out of our Herndon, VA location...Work experience placementRemote work
- ...leadership grows from one-time events to personalized, continuous, human-centered experiences. We are seeking a Full Stack Software Engineer to join our team supporting Project Center and LeadHub while helping us evolve toward our next-generation platform. This role...Temporary work
- ...responsibilities of the position and has completed the necessary telework training. Basic Requirements ~14 years of experience as a software engineer ~ Bachelor's degree in a technical discipline ~4 additional years of experience as a software engineer may be substituted...16 hoursImmediate startRemote work
- ...Investment Firm Software Engineer Contract to hire position with a major investment firm. Hybrid in Newark, NJ. Here is what you can expect on a typical day: Build applications ensuring that the code follows latest coding practices and industry standards, using...Contract work
$125k - $200k
...experienced, passionate pioneer in technology who wants to work in a collaborative environment? As an experienced Full Stack Software Engineer, you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel...Work at officeVisa sponsorshipMonday to Friday- ...Zyphra is an artificial intelligence company based in San Francisco, California. The Role: As a Full-Stack Software Engineer , you will be a core contributor to Zyphra's Agentic Systems and Interaction projects. You will be at the forefront of building a next...Work at officeRelocation package
$180k - $215k
...Fullstack Software Engineer San Francisco, Palo Alto, Los Angeles, Toronto About HeyGen At HeyGen, our mission is to make visual storytelling accessible to all. Over the last decade, visual content has become the preferred method of information creation, consumption...Work experience placement- ...Full-Stack Software Engineer We expect you to have: (Minimum Qualifications) Strong core Java skills - 7+ years of experience as a Java software engineer. SQL, RESTful APIs, Spring and Spring Boot expertise. Build tools: Maven and Git....Work experience placement
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Software Engineer. Be the first to apply!
- graduate software developer United States
- rust software engineer United States
- senior software design engineer United States
- software engineer student United States
- software engineer amazon United States
- software developer positions United States
- software engineer full time United States
- software qa engineer United States
- new graduate software engineer United States
- junior software developer United States

