AI Fullstack Developer (3+ years)

Company Description

At MarsDevs, we specialize in transforming ambitious ideas into scalable software solutions for startups and SMBs. As a strategic technology partner, we combine product strategy, clean engineering, and design thinking to create unique digital experiences. Our expert team, consisting of developers, AI engineers, DevOps professionals, and UI/UX designers, has successfully delivered custom solutions across industries. Services include web and mobile app development, AI and blockchain solutions, workflow automation, and cloud infrastructure modernization. With experience aiding 100+ organizations worldwide, MarsDevs is committed to delivering reliable, scalable, and innovative tech solutions tailored to your business needs.

We're looking for strong Full Stack / AI Engineers who are comfortable working across both backend and frontend systems while also contributing to AI-powered applications and workflows.

You may currently be stronger in either Python or Node.js, but you should be open to learning and working across both technologies as part of the role. We're looking for engineers who enjoy solving real-world problems, building scalable products, and working in fast-paced development environments.

Backend: Python, Node.js

Frontend: React.js, Next.js, Vue.js

AI/ML: LLM integrations, AI workflows, prompt engineering, AI APIs

Database: PostgreSQL, MySQL, MongoDB

Cloud & DevOps: AWS, Docker, CI/CD

• Design, develop, and maintain scalable backend APIs and services
• Build modern, responsive, and high-performing frontend applications using React.js, Next.js, or Vue.js
• Work on AI-powered features, integrations, and automation workflows
• Integrate third-party APIs, AI models, and cloud services into applications
• Collaborate with product, design, and QA teams to deliver end-to-end features
• Write clean, maintainable, reusable, and well-documented code
• Debug production issues, optimize application performance, and maintain code quality
• Participate in architectural discussions and contribute to scalable system design
• Learn and work across multiple backend technologies as required by the project

• Minimum 3+ years of Full Stack development experience
• Minimum 2+ years of hands-on AI engineering experience
• Strong experience with React.js, Next.js, or Vue.js
• Backend development experience with Python and/or Node.js
• Experience working with AI tools, LLMs, AI APIs, or AI-based applications
• Good understanding of RESTful APIs and microservices architecture
• Experience with relational and/or NoSQL databases
• Familiarity with Git and collaborative development workflows
• Strong problem-solving and debugging skills
• Ability to work in a fast-paced product or startup environment

• Experience with AWS, GCP, or Azure
• Docker and basic DevOps knowledge
• Understanding of system design, scalability, and performance optimization
• Experience building AI agents, automation systems, or GenAI applications
• Exposure to vector databases, embeddings, or RAG pipelines
• Startup or product-based company experience