![Larry Margerum](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_73212_1785346040.jpg) Larry Margerum # Full Stack & AI Engineer Actively looking · Member since 29 Jul 2026 [Message](https://jobicy.com/dashboard-page.md) ShareLocationHel, PolandDesired salary30–60 USD/hourlyWork preferenceRemote Only / Full Time, Part Time, Contract, Freelance, Volunteer, TemporaryExperience levelMid * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a Full Stack & AI Engineer focused on building scalable web applications and AI-driven products. I work across the full stack, combining Python, TypeScript, React, Next.js, FastAPI, and cloud technologies to deliver production-ready software. My experience includes designing APIs, optimizing performance, and shipping user-facing features in distributed engineering teams. I also specialize in AI engineering, including Large Language Model applications, Retrieval-Augmented Generation systems, multi-agent architectures, and intelligent automation platforms. I have hands-on experience with LangChain, LangGraph, OpenAI APIs, Anthropic, and open-source model ecosystems. I enjoy solving complex technical problems and improving system reliability, accuracy, and scalability. In recent roles, I contributed to AI workflows, prompt engineering, retrieval optimization, and model evaluation to improve product outcomes. My background includes both startup-style product development and open-source SaaS work, where I collaborated closely with engineers through code reviews, sprint planning, and technical design discussions. I am comfortable taking ownership of features from implementation through deployment. I am based in Poland and open to remote opportunities where I can contribute to modern software and AI products. I value strong engineering practices, thoughtful architecture, and building tools that create measurable business impact. Notice period: Immediately ## Skills 35 capabilities[Agentic AI](https://jobicy.com/talent/agentic-ai.md)[AWS](https://jobicy.com/talent/aws.md)[Azure](https://jobicy.com/talent/azure.md)[C C++](https://jobicy.com/talent/c-c-plus-plus.md)[CI CD](https://jobicy.com/talent/ci-cd.md)[Cloud Computing](https://jobicy.com/talent/cloud-computing.md)[Deep Learning](https://jobicy.com/talent/deep-learning.md)[Docker](https://jobicy.com/talent/docker.md)[fastAPI](https://jobicy.com/talent/fastapi.md)[GCP](https://jobicy.com/talent/gcp.md)[Git](https://jobicy.com/talent/git.md)[GitHub](https://jobicy.com/talent/github.md)[GraphQL](https://jobicy.com/talent/graphql.md)[JavaScript](https://jobicy.com/talent/javascript.md)[Kubernetes](https://jobicy.com/talent/kubernetes.md)[LangGraph](https://jobicy.com/talent/langgraph.md)[Langsmith](https://jobicy.com/talent/langsmith.md)[Large Language Models](https://jobicy.com/talent/large-language-models.md)[Linux](https://jobicy.com/talent/linux.md)[Machine Learning](https://jobicy.com/talent/machine-learning.md)[Microservices](https://jobicy.com/talent/microservices.md)[MLOps](https://jobicy.com/talent/mlops.md)[MongoDB](https://jobicy.com/talent/mongodb.md)[Next.js](https://jobicy.com/talent/next-js.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[Prompt Engineering](https://jobicy.com/talent/prompt-engineering.md)[Python](https://jobicy.com/talent/python.md)[PyTorch](https://jobicy.com/talent/pytorch.md)[React](https://jobicy.com/talent/react.md)[Redis](https://jobicy.com/talent/redis.md)[RESTful APIs](https://jobicy.com/talent/restful-apis.md)[System Design](https://jobicy.com/talent/system-design.md)[Terraform](https://jobicy.com/talent/terraform.md)[TypeScript](https://jobicy.com/talent/typescript.md)[Vector Databases](https://jobicy.com/talent/vector-databases.md) ## Tech stack & tools Working toolkit ### Application Hosting [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/azure/azure-original.svg) Azure](https://jobicy.com/talent?tool=azure.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/cloudflare/cloudflare-original.svg) Cloudflare](https://jobicy.com/talent?tool=cloudflare.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/redis/redis-original.svg) Redis](https://jobicy.com/talent?tool=redis.md) ### Data Stores [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/mongodb/mongodb-original.svg) MongoDB](https://jobicy.com/talent?tool=mongodb.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/mysql/mysql-original.svg) MySQL](https://jobicy.com/talent?tool=mysql.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/postgresql/postgresql-original.svg) PostgreSQL](https://jobicy.com/talent?tool=postgresql.md) ### Development [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/docker/docker-original.svg) Docker](https://jobicy.com/talent?tool=docker.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/git/git-original.svg) Git](https://jobicy.com/talent?tool=git.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/github/github-original.svg) GitHub](https://jobicy.com/talent?tool=github.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/kubernetes/kubernetes-original.svg) Kubernetes](https://jobicy.com/talent?tool=kubernetes.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/linux/linux-original.svg) Linux](https://jobicy.com/talent?tool=linux.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/terraform/terraform-original.svg) Terraform](https://jobicy.com/talent?tool=terraform.md) ### Languages & Frameworks [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/css3/css3-original.svg) CSS3](https://jobicy.com/talent?tool=css3.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/fastapi/fastapi-original.svg) FastAPI](https://jobicy.com/talent?tool=fastapi.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/graphql/graphql-original.svg) GraphQL](https://jobicy.com/talent?tool=graphql.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/html5/html5-original.svg) HTML5](https://jobicy.com/talent?tool=html5.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/javascript/javascript-original.svg) JavaScript](https://jobicy.com/talent?tool=javascript.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/nodejs/nodejs-original.svg) Node.js](https://jobicy.com/talent?tool=nodejs.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/python/python-original.svg) Python](https://jobicy.com/talent?tool=python.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/pytorch/pytorch-original.svg) PyTorch](https://jobicy.com/talent?tool=pytorch.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/react/react-original.svg) React](https://jobicy.com/talent?tool=react.md) ## Experience Career history ### AI Engineer · Twelve Labs Jan 2025 – Jun 2026Designed and deployed more than 12 production-grade AI applications using LLMs, RAG pipelines, and multi-agent architectures. Improved AI response accuracy through prompt engineering, retrieval optimization, and systematic model evaluation. Built and maintained AI workflows and integrations across OpenAI, Anthropic, and open-source models. Led technical initiatives in a distributed engineering team, contributing to architecture decisions, mentoring, and AI engineering best practices. ### Full Stack Developer · Prefect Jan 2023 – Dec 2024Delivered more than 20 full-stack features across multiple products using Next.js, TypeScript, Python, and PostgreSQL. Improved application performance through API optimization, database tuning, caching strategies, and frontend performance improvements. Designed and maintained RESTful API endpoints and integrations for authentication, billing, and AI-powered workflows. Collaborated with distributed teams, taking increasing ownership of feature delivery and participating in code reviews, sprint planning, and technical design discussions. ### Junior Full Stack Developer · Weaviate Jan 2022 – Dec 2022Contributed to frontend and backend feature development for an open-source SaaS platform using Next.js, TypeScript, and Node.js. Improved application performance through database query optimization and API enhancements. Implemented and maintained RESTful API endpoints and PostgreSQL integrations. Worked with a distributed engineering team in an Agile environment, participating in code reviews, sprint planning, and collaborative delivery. ### AI Engineer Intern · Tooploox Jun 2021 – Dec 2021Contributed to the development and evaluation of NLP models using PyTorch and Hugging Face Transformers for text classification and question-answering tasks. Built data preprocessing pipelines that reduced dataset preparation time across multiple machine learning experiments. Assisted in training and benchmarking transformer-based models on large text datasets. Supported the delivery of AI proof-of-concepts for enterprise clients while working with senior engineers and data scientists. ## Education Learning history ### Warsaw University of Technology Oct 2018 – Jun 2021Bachelor's Degree, Computer Science Studied Computer Science with a focus on software engineering and related technical foundations. This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.