Founding Full Stack Software Engineer (Backend/AI Focus)

Location: Los Angeles, CA, US (On-site)

Employment Type: Full-time

Salary Range: $160K - $225K

We are a rapidly growing, Y-Combinator-backed (YC X25) startup operating at the intersection of AI and Cybersecurity. We are building fully autonomous, in-house AI agent systems designed to solve critical, large-scale problems in modern web application security. Join a small, high-impact founding team to define and build the core technology from the ground up.

We are seeking a skilled and passionate Founding Full Stack Software Engineer with a strong focus on backend development and AI systems. You will be responsible for designing, developing, and maintaining highly scalable, high-performance web applications and our cutting-edge AI Agent platform.

Founding Engineer - Full-Stack AI Compliance Platform

Location: On site - New York

Compensation: $200K - $250K

We are a rapidly growing AI and Security company that has already disrupted industry incumbents since launching in 2025. We are building the AI-native compliance platform that automates security and compliance (SOC 2, ISO, HIPAA, GDPR) using AI agents, turning months-long processes into days. We are looking for a Founding Engineer—a true builder ready to own features end-to-end and define the technical DNA of our product.

This is not a narrow role; we seek a full-stack builder who can execute across the entire product lifecycle. You will have deep ownership over critical, high-leverage projects, collaborating directly with the founders to move the business forward. Your code quality and product sense will set the standard for the entire engineering organization.

What You'll Do:

Forward Deployed Engineer (AI Platform)

Location: San Francisco, CA (On-site, 4-5 days/week)

Employment Type: Full-time

Salary Range: $120K - $180K

We are a rapidly growing, Series A-funded technology company (backed by top-tier VCs) providing an AI platform for building and deploying automated communication workers in the complex logistics and supply chain industry. We are looking for a versatile engineer with unstoppable energy and a relentless drive to maximize customer value.

This role requires a unique blend of strong technical skills (Python) and exceptional communication abilities. As a Forward Deployed Engineer, you will operate at the intersection of customer engineering and technical development, serving as the critical link between our AI platform and our enterprise customers.

Key Responsibilities:

Applied AI Engineer

Location: NYC (On-site, 5 days/week)

Employment Type: Full-time

Salary Range: $150K - $225K

We are a rapidly growing, well-funded technology company operating at the intersection of AI, Software Development, and the Healthcare/Life Sciences industry. We are building a foundational network and applying advanced AI techniques to revolutionize how new life-changing therapies reach patients. This is a demanding, high-autonomy role with end-to-end responsibility for driving measurable business impact. Visa sponsorship is available.

As an Applied AI Engineer, you will be responsible for leveraging LLMs and various Machine Learning techniques to solve critical business problems, automate complex processes, and create groundbreaking AI applications across our product suite. This role requires a deep understanding of the business domain to ensure your technical output directly drives user growth, operational efficiency, and revenue generation.

Key Responsibilities:

Engineering Manager (Player-Coach) - AI & Real-Time Data Platform

Location: On site - San Francisco or New York

We are an ambitious, high-growth AI and Media startup, redefining how organizations comprehend, summarize, and act on insights from real-time traditional and social media data (text, audio, and video). We are seeking a hands-on Engineering Manager to build, lead, and scale our engineering team, driving technical excellence and a high-velocity culture as we rapidly expand our enterprise-grade platform.

This is a critical player-coach role where you will blend technical leadership with hands-on contribution. You will set the technical direction for our stack, scale our infrastructure for enterprise customers, and build a high-performing team. Success requires a constant balance between shipping with urgency to meet customer demands and making sound architectural decisions to ensure long-term scalability and reliability.

What You Will Do:

We’re looking for a remote Full Stack Developer based in Jordan or Egypt passionate about modern architectures, seamless user experiences, and scalable backend systems to join our growing engineering team.  

Job Overview  

As a Full Stack Developer, you will design and build serverless and microservice-based applications leveraging AWS technologies. You’ll work across the stack from creating intuitive React interfaces to developing scalable Node.js APIs ensuring performance, reliability, and maintainability across our platforms.  

Key Responsibilities  

• Design and develop serverless and microservice architectures using AWS Lambda, API Gateway, and related services.  

• Build responsive, high-quality front-end interfaces using React.  

• Develop and maintain robust back-end APIs using Node.js.  

• Collaborate with cross-functional teams to deliver scalable, high-performance solutions.  

• Implement and maintain CI/CD pipelines for smooth deployment and updates.  

• Ensure system reliability, security, and scalability through clean and efficient code.  

Qualifications  

Solana-Focused Frontend Engineer - Crypto Social Finance

Location: Remote - preference is NYC/LDN but open to remote candidates if they're an exceptional fit.

Compensation: $250K - $300K

We are a high-growth software development company of elite builders, redefining what's possible and proud contributors to the largest crypto social network globally. We are seeking a Solana-Focused Frontend Engineer to play a critical role in building and scaling cutting-edge platforms at the forefront of crypto and social finance, delivering high-performance, user-centric applications across web and mobile.

You will be instrumental in bridging the gap between our smart contract infrastructure and the user interface, working in an environment where speed, ownership, and innovation are paramount. You will own the front-end implementation of new on-chain features, optimize performance, and ensure a seamless user experience for real-time interactions.

Key Responsibilities:

Full Stack Engineer - Payments & FinTech Web Applications

Location: Remote - Based in EST or GMT+1

Compensation: $120K - $150K

We are a high-growth technology company building a robust FinTech and payments platform. We are seeking an experienced Full Stack Engineer with strong product sense and deep technical expertise to design and build the secure, scalable, and high-performing web applications that power our platform. This role requires translating complex backend financial systems into intuitive, reliable user experiences.

You will own the development lifecycle of web applications from design through release, working across the full stack with an emphasis on the frontend user experience. You will collaborate closely with backend teams, ensuring that all features prioritize performance, security, and scalability. You will be expected to treat UI components and APIs as products, maintaining high standards for code quality and architectural clarity.

What You'll Do:

Senior Full Stack Engineer - (Platform)

Location:Remote - Preference for NYC - Or Remote USA OR EUROPE to work a 5 hour overlap with EST hours

Remote | Full-time

Compensation: $144K - $164K

Our client is a pioneer in automated, on-chain economic security, providing a sophisticated system that enables crypto protocols to optimize risk management and capital efficiency. By analyzing protocol mechanics and scenario implications through world-class custom EVM simulations, the platform provides actionable insights trusted by leading decentralized finance (DeFi) protocols to manage and secure billions of dollars in assets.

The organization is seeking a proactive and results-driven Senior Full Stack Engineer to join the team. Reporting directly to the Platform Team Lead, the successful candidate will play a critical role in building data-driven dashboards and tools to support complex risk analysis. This role involves close collaboration with research and protocol teams to deliver high-quality frontend and backend components that power essential security insights.

Key Responsibilities

Front-End Engineer - Institutional DeFi Liquidity Layer

Location: Remote - US - Would consider South America & Canada (Preference for onsite/hybrid in LA)

Compensation: $ Competitive

We are an on-chain financial infrastructure company building the liquidity layer for the tokenized economy, backed by leading investors. Our flagship protocol connects tokenized assets and high-quality stablecoins to enable 24/7, real-time, compliant capital movement across blockchains. We are seeking a Front-End Engineer to design and build the user experiences that power institutional DeFi, working with production partners including major financial institutions.

You will lead the development of user interfaces for our protocol's web and mobile products and dashboards, spanning swaps, liquidity management, and analytics. This role requires translating complex blockchain and financial interactions into beautiful, intuitive, high-performance interfaces for sophisticated financial users. You'll join a small, high-velocity team, shipping code daily and defining the future of on-chain institutional finance.

Key Responsibilities: