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.

Tiger Analytics is a fast-growing advanced analytics consulting firm. Our consultants bring deep expertise in Data Science, Machine Learning and AI. We are the trusted analytics partner for several Fortune 100 companies, enabling them to generate business value from data. Our business value and leadership has been recognized by various market research firms, including Forrester and Gartner. We are looking for top-notch talent as we continue to build the best analytics global consulting team in the world.

The Power BI Architect will lead the design, strategy, and governance of the enterprise BI platform using Microsoft Power BI and the Azure ecosystem. This role involves assessing infrastructure requirements, defining best practices, guiding BI Engineers, enabling security, handling large data, and ensuring scalable, high-performing BI solutions that align with business needs.

Key Requirements:

About us:

At Motia, we’re at the forefront of fleet solutions, providing innovative services that power businesses across the UK. We’re committed to creating an environment where everyone can thrive. Our culture fosters collaboration, innovation, and growth, ensuring you can build a career, not just a job. With over 300 employees across five offices, we support over 50,000 customers nationwide.

Position Overview

Reporting to the Lead Software Developer, the Junior Developer role is a hands-on development role contributing to Motia applications and services. Working with experienced developers, this role will contribute to developing, testing and maintaining real world software solutions with a focus on industry leading customer experience.

Duties & Responsibilities

Company Profile
EpicMetry is a dynamic venture studio based in the vibrant city of Karachi. Our passion lies in harnessing cutting-edge technology to drive innovation and empower businesses across diverse industries. With a focus on excellence and a commitment to delivering exceptional solutions, we serve as a trusted partner for companies aiming to thrive in today's digital landscape. From web and mobile app development to product prototyping and data processing automation, EpicMetry offers a comprehensive suite of services tailored to meet the evolving needs of businesses worldwide. Join us as we shape the future of technology and create impactful solutions that drive success for our clients.

Position Overview

We are looking for a talented MERN/React Native Developer to join our innovative team. In this role, you will be responsible for developing robust web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js) as well as mobile applications using React Native. You will collaborate with cross-functional teams to define, design, and launch new features while ensuring the responsiveness and performance of both web and mobile applications. If you have a strong foundation in full-stack development and a passion for creating seamless user experiences, we want to hear from you!

Requirements

Founding Full Stack Software Engineer (Backend/AI Focus)

Location: Los Angeles, CA (100% On-site)

Compensation: $170,000 - $225,000 (Base Salary) + Significant Equity

We are an early-stage, YC-backed company building fully autonomous AI agents powered by in-house models that can find, exploit, and patch complex vulnerabilities in web applications at massive scale. We are seeking a passionate Founding Full Stack Software Engineer to build and scale the core systems. This is a high-impact role with a focus on backend architecture and AI agent systems, directly addressing the speed and scale challenges posed by AI-generated code.

As a Founding Engineer, you will have significant responsibility for designing, developing, and maintaining our scalable, high-performance web applications and cutting-edge AI Agent systems. Your focus will be on the backend and AI components.

Key Responsibilities:

Our team is searching for a skilled Middle Python Developer to strengthen our backend and help evolve our product architecture. You’ll work closely with experienced engineers, bring fresh ideas to the table, and take ownership of key components.

Your responsibilities will include:

• Writing, maintaining, and optimizing high-quality code;
• Analyzing the existing solution architecture and taking an active role in designing a new one;
• Leading a small team of two backend developers.

What we’re looking for:

• 3-4 years of experience in backend development with Python 3.x (FastAPI or Flask);
• Strong skills in designing and building RESTful APIs;
• Solid understanding of OOP principles, data structures, and algorithms;
• Hands-on experience with asynchronous programming (asyncio, aiohttp) and API integrations;
• Strong knowledge of SQL and experience with ORMs (SQLAlchemy or Django ORM);
• Practical experience with caching tools (Redis, Memcached) and database migrations;
• Good understanding of Docker, CI/CD pipelines, and version control (Git);
• Familiarity with cloud platforms (AWS, GCP, or Azure) and web servers (Nginx, Gunicorn, Uvicorn);
• Knowledge of design patterns, SOLID principles, and system design;
• Strong communication skills.

Our team is searching for a skilled Middle Python Developer to strengthen our backend and help evolve our product architecture. You’ll work closely with experienced engineers, bring fresh ideas to the table, and take ownership of key components.

Your responsibilities will include:

• Writing, maintaining, and optimizing high-quality code;
• Analyzing the existing solution architecture and taking an active role in designing a new one;
• Leading a small team of two backend developers.

What we’re looking for:

• 3-4 years of experience in backend development with Python 3.x (FastAPI or Flask);
• Strong skills in designing and building RESTful APIs;
• Solid understanding of OOP principles, data structures, and algorithms;
• Hands-on experience with asynchronous programming (asyncio, aiohttp) and API integrations;
• Strong knowledge of SQL and experience with ORMs (SQLAlchemy or Django ORM);
• Practical experience with caching tools (Redis, Memcached) and database migrations;
• Good understanding of Docker, CI/CD pipelines, and version control (Git);
• Familiarity with cloud platforms (AWS, GCP, or Azure) and web servers (Nginx, Gunicorn, Uvicorn);
• Knowledge of design patterns, SOLID principles, and system design;
• Strong communication skills.

GoMining is a global Bitcoin ecosystem on a mission to unlock the full potential of Bitcoin. We create tools and services that make it simple and secure to earn, use, and benefit from Bitcoin daily regardless of country, income, or level of knowledge.

You will ensure product quality through automated and manual testing, maintaining a high standard across web, mobile, and backend services.

Responsibilities

• Design and execute test cases, ensuring full coverage across UI, API, and mobile platforms.

• Develop and maintain automated tests using Playwright + TypeScript (UI, API, e2e).
• Work with Git (CLI, GitLab) for version control and CI/CD integration.
• Manage test documentation and results via Allure TestOps / Allurectl.
• Conduct testing of iOS and Android apps (TestFlight, Google Internal Testing).
• Capture and analyze mobile traffic for debugging and performance validation.
• Use diagnostic and monitoring tools (RMQ, Grafana, Sentry, Rancher) to ensure system stability.
• Collaborate with developers, analysts, and product managers to improve quality processes.

Requirements

We are looking for a motivated and proactive JavaScript Developer to join our Support & Hands History team. You’ll be working on existing game titles built with PixiJS — supporting, maintaining, and enhancing them, while also collaborating closely on the development and evolution of our internal game library.

Requirements

• At least 1.5 years of commercial experience in JavaScript / Frontend development;
• Hands-on experience with PixiJS — commercial or non-commercial (e.g. pet projects, game jams, educational demos);
• Proven experience working with animations, including: Pixi-Spine, Animated Sprite, animation libraries (e.g. GSAP);
• Experience with version control systems (Git) and understanding of CI/CD processes;
• Experience working with texture generation tools or texture atlases;
• Understanding of game performance optimization and browser debugging;
• Languages: Ukrainian — required; English — B1 level or higher.

FlatGigs is hiring for a client developing logistics and operations tech solutions. As a Backend Engineer (Django), you’ll build reliable APIs, manage databases, and ensure system performance and security. You’ll collaborate closely with frontend and mobile developers to deliver scalable, efficient products that simplify real-world logistics.

Key Responsibilities

• Develop backend services using Python (Django)
• Build and maintain RESTful APIs
• Manage PostgreSQL databases
• Optimize performance and reliability
• Collaborate on CI/CD and version control with Git/Docker
• Write clean, secure, maintainable code

Requirements

• 3+ years of Django experience
• Strong understanding of API design and security
• Excellent problem-solving and communication skills