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Senior Software Engineer, AI
Build and own an AI agent platform that reads operational knowledge, reasons in context, and automates end-to-end workflows using LLMs, backend services, and tool integrations.
AI-Native Software Developer
Build and improve AI-powered software end-to-end using Ruby on Rails, SQL, and AI-driven workflows in a fully remote, international team.
Backend Developer (Mid/Senior) – Rails & SQL, Global SaaS
Build and maintain the Ruby on Rails backend for a global SaaS invoicing platform, working with SQL databases and collaborating in an agile team.
Backend Developer (Python/RoR) @ MindPal Sp. z o. o.
Build and maintain backend services in Python (Django/Flask/FastAPI) and occasionally Ruby on Rails, working with PostgreSQL/MySQL and Docker while experimenting with AI tools.
Full Stack Developer (Backend Focus)
Build and maintain scalable web apps using Node.js, PHP/Laravel, Ruby on Rails, Vue.js, and TypeScript while optimizing databases and CI/CD pipelines.
Staff Software Engineer - AI
Lead and scale Generative AI features for the Treasure Data platform, designing and delivering AI-driven solutions while owning system architecture and mentoring engineers.
Remote Backend Developer — CRM & Server-Side Solutions
Designs and builds CRM software back-end systems using PHP, Python, or Ruby while maintaining existing applications.
Mid/Senior Backend Developer
Backend developer building and maintaining a Polish SaaS invoicing platform used by 200k+ businesses, working with SQL, Ruby on Rails, and Git.
Backend Developer
Builds and maintains server-side CRM software using PHP, Python, or Ruby in a collaborative team.
Senior Data Engineer
Build and scale a data platform from the ground up, designing pipelines, models, and orchestration to enable reliable analytics and decision-making across the company.
Senior Software Developer
Build full-stack healthcare tools that help primary care physicians diagnose chronic conditions earlier and manage patient care more effectively using Python, Ruby, Go, C, or Java.
Data Engineer
Build and maintain data pipelines and warehouses using AWS, Spark, Kafka, and Databricks to power Clio’s legal AI platform.
Junior Software Developer
Junior Software Developer role in Warsaw, Poland; details unclear due to mixed job posting content.
Ruby on Rails/Python Developer Rzeszów, Białystok, Łódź, Remote Open Ruby on Rails/Python Devel[...]
Build and maintain backend services in Ruby on Rails and Python for client projects, focusing on scalable APIs, databases, and AI integrations.
Amazon Data Engineer II, FO Data Engineering (SCDE)
Build and maintain Amazon’s massive data warehouse and ETL pipelines to power supply-chain analytics and business intelligence used by thousands of users.
Senior Frontend Developer with React&TypeScript (in Warsaw)
Build and maintain complex web apps for a top navigation system using React, TypeScript, and modern frontend toolkits.
Frontend Developer
Build and improve web portals and internal tools using modern frontend tech, collaborating with open-source teams to enhance UX and accessibility.
Software Engineer
Builds and maintains web apps using Ruby on Rails, .NET, Python, and JavaScript in an Agile team.
Software Engineer
Build and optimize cloud-native object storage software for AI data lakes, using C++ and Go/Python/Java, while improving performance and reliability in a hybrid Agile team.
Software Engineer - Java
Build cloud-based life-sciences software in Java/Spring, designing scalable features and mentoring junior engineers.