Senior Full Stack Software Engineer | AI

5 days ago

Remote Gdańsk Kraków Wrocław Warszawa Katowice, Czech Republic Oversee Full time

5+ years of experience in software engineering, with a track record of building production systems Strong background in designing scalable, distributed applications Proven hands-on experience developing or integrating products using LLMs (e.g., RAG pipelines, custom agents, fine-tuning, or orchestration frameworks like LangChain/LlamaIndex) Hands-on experience with Python Solid understanding of Linux runtime environments Skilled at identifying and solving performance bottlenecks Excellent collaboration skills with the ability to give and receive constructive feedback Fluent in English, with strong written and verbal communication Proactive, curious, and eager to keep learning At Oversee, we are reimagining how corporate travel is managed. Our cutting-edge technology and machine learning solutions replace the outdated, manual processes that slow companies down — unlocking cost savings, efficiency, and smarter decisions. We bring together travel analytics and actionable insights, giving global enterprises a clear view of their spend and the tools to continuously improve their programs. Now, we’re building the next frontier - AgentSee, our AI travel assistant that automates the complex workflows of travel agents. AgentSee uses LLMs and agentic reasoning to handle cancellations, exchanges, and traveler conversations across channels. We’re growing fast, with exponential YoY revenue growth and partnerships with some of the world’s largest Fortune 500 companies. If you are looking for a dynamic, fast-paced, and positive environment - and want to help solve a $17B global problem - Oversee is the place to build, grow, and make an impact. Why join us? You’ll join as a Senior Full Stack Software Engineer with hands-on experience building products powered by LLMs, contributing directly to the development of our AgentSee AI platform. This is a rare opportunity to work at the intersection of AI, automation, and large-scale real-world data. Come shape the future of business travel with us ,[Design, build, and scale AI-driven systems that power our virtual agent capabilities (conversational reasoning, retrieval, and automation flows);, Develop backend services and data pipelines that integrate multiple APIs (Amadeus, Sabre, internal systems) to support real-time decision-making;, Collaborate with other teams to ship LLM-based features that deliver measurable impact;, Own architecture decisions for distributed, high-performance AI applications;, Continuously improve model performance, reliability, and monitoring frameworks;, Help define our engineering best practices, guide technical decisions, and mentor other developers within the team.] Requirements: Python, LLM, AWS, Terraform, RAG, LangChain Additionally: Small teams, Stock options, Global team, Competitive salary.

  • Senior Full-Stack Software Engineer @ Oversee

    7 days ago

    Remote, Kraków, Wrocław, Warszawa, Katowice, Czech Republic Oversee Full time

    5+ years of experience in software engineering, with a track record of building production systems Strong background in designing scalable, distributed applications Hands-on experience with Python/Django and Java/Kotlin*(JVM stack) Familiarity with TypeScript/React Solid understanding of Linux runtime environments Skilled at identifying and solving...

  • Senior Full-stack developer

    1 week ago

    Remote, Czech Republic TechMagic Full time

    We’re looking for an experienced Senior Full-stack Developer (PHP + React) who’s passionate about modern development and curious about how AI can level up the way teams work. You’ll join a long-term project in the alternative investments domain, helping to improve and scale a product that simplifies the entire process of investing — from onboarding...

  • Senior Software Engineer

    24 hours ago

    Kraków, Czech Republic HSBC Technology Poland Full time

    What you need to have to succeed in this role  8+ years of software engineering experience, with 3+ years in full stack roles designing, building, and launching web platforms Strong command of frontend frameworks (React, Angular, or Vue), component-driven architecture, state management, responsive UI, routing Solid experience in backend development: RESTful...

  • Senior Software Engineera

    1 week ago

    Kraków, Czech Republic Antal Full time

    Minimum 8 lat doświadczenia w inżynierii oprogramowania Minimum 3 lata w roli Full Stack Engineer (end-to-end delivery) Doskonała znajomość React / Angular / Vue Doświadczenie z backendem: Node.js, Java lub Python Umiejętność projektowania API, mikroserwisów, baz danych (SQL i NoSQL) Zrozumienie architektury chmurowej (GCP / AWS / Azure)...

  • Senior Software Engineer

    5 days ago

    Remote, Czech Republic Merit Full time

    Your Profile Strong technical foundation; comfortable coding in at least two modern languages. Track record of delivering production systems independently. Experience across varied environments (consulting, freelance, agency, or startup). Curious and active in AI-assisted development (e.g., Copilot, Claude, Cursor, self-hosted LLMs). Experience building or...

  • Software Engineer

    5 days ago

    Remote, Czech Republic CyberVadis Full time

    Qualifications: General: - Excellent communication and teamwork skills. - Ability to learn new technologies quickly. - Bachelor's degree in Computer Science, or equivalent practical experience. - Strong understanding of industry standards like git, SQL, Agile, unit testing, etc. For Senior Level: Must-Haves: - 8+ years of experience in full-stack...

  • Full Stack .NET Developer with AI @ ALK

    2 weeks ago

    Kraków, Czech Republic ALK Full time

    About ALK At ALK, our aspiration is to become the global leader in allergy treatment, helping individuals worldwide improve their quality of life through prevention, diagnosis, and treatment. Global IT contributes to this vision by empowering the organization with advanced technology solutions and by continuously delivering new digital tools and IT...

  • Full Stack AI Developer @ Experis Polska

    7 days ago

    Remote, Czech Republic Experis Polska Full time

    Expectations Proven experience in AI frameworks, LLM integration, and autonomous agent design. Strong full-stack development skills with modern frontend and backend technologies (React, Next.js, or Vue on the frontend; Node.js, Python/FastAPI, or Django on the backend).) Expertise in cloud platforms and scalable deployment strategies. Solid understanding of...

  • Senior Full Stack Engineer @ SD Solutions

    1 week ago

    Warszawa, Czech Republic SD Solutions Full time

    Significant experience in full-stack web development and software engineering for production systems. Proficiency in front-end technologies like VueJS (JavaScript, TypeScript, and React/Angular). Strong back-end experience with languages like Go (Java, Python and familiarity with cloud services). A deep understanding of UX and design principles, with...

  • (AI-native) Senior Backend Software Engineer @ Zowie

    2 weeks ago

    Remote, Kraków, Warszawa, Czech Republic Zowie Full time

    Ideally, you'll bring with you: Excellent coding skills in Java, Scala, or Python and a passion for learning Solid expertise in enhancing your engineering setup and workflow with AI dev tools Excellent knowledge of SQL and relational databases Excellent system design skills that allow you to choose technologies and architectures wisely Experience with...