Senior Full-Stack Software Engineer - AI Platform

Such Much Ai — Lithuania · Posted ~4 weeks ago

Senior €5000-€8000 gross

Skills

Full-stack development REST API development Backend services AI feature development LLM workflow optimization Cloud integration Responsive frontend development Scalable software development REST APIs LangChain LangGraph LlamaIndex LLMs Cloud platforms Frontend frameworks Backend technologies

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Summary ✨ AI‑Generated

Join a senior full-stack engineering team building an AI-powered document automation platform. You will develop scalable APIs and backend services, integrate advanced LLM frameworks, optimize AI workflows across cloud providers, and create responsive interfaces while helping shape a modern AI product.

Highlights

Work on a next-generation AI platform with a senior-level role spanning scalable backend services, REST APIs, modern LLM frameworks, multi-cloud integration, and responsive frontend development. The position includes a €5,000–€8,000 gross salary range and stock options.

Description

We’re looking for a driven Full-stack Software Engineer to help us build a next generation AI-powered document automation platform. Vilnius, Lithuania 5000 - 8000 EUR Gross, Stock Options Apply Now About Such Much AI Such Much AI revolutionizes the way organisations create documentation, sales proposals, procurement contracts, and other documents. Our proprietary AI technology delivers high-quality, data-rich documents in minutes - helping you close deals faster and enhance productivity. The Role As a Senior Full-Stack Engineer, you will be pivotal in further developing the Such Much AI platform. You will build scalable backend services and APIs, work with multiple cloud providers, implement cutting-edge LLM frameworks, and design responsive front-end interfaces. Key Responsibilities Design and develop high-performance RESTful APIs and backend servicesImplement AI features using LangChain, LangGraph, and LlamaIndexOptimise LLM workflows and integrate with multiple cloud providersBuild responsive and interactive front-end interfaces using React, TypeScript, and Next.jsContribute to technology and architecture decisions Requirements 5+ years of full-stack development experience with Python, React, and TypeScriptStrong experience with FastAPI, SQLAlchemy, and RESTful API designProficiency in PostgreSQLExperience with asynchronous task queues, like Celery, Temporal, or any otherKnowledge of frontend testing strategies and tools like Jest, React Testing Library, Cypress Advantages Experience with AI agents, prompt engineering, RAG techniques, vector databases, fine-tuningHands-on experience with cloud platforms like AWS, Azure, or GCPExperience with microservices architecture and event-driven systemsExperience with micro frontend architecture and implementation strategiesFamiliarity with design systems and component libraries for scalable UI development Why Join Us? Work on cutting-edge AI technology with a direct impact on SMEs worldwideRapid growth and learning in a fast-paced, early-stage startup environmentOwnership of significant parts of the product and codebaseCompetitive salary, benefits, and stock optionFlexible remote work How To Apply To apply, send your resume and relevant project examples to info@suchmuchai.com. Apply Now Other Open Roles at Projecty Take a look at our open position that might suits your passion! Product Manager We’re looking for a creative and detail-oriented Product Designer who can shape the user experience and design of our platform. Vilnius, Lithuania 4700 - 6700 EUR Gross, Stock Options Apply Now