Agentic Product Engineer Internship - Full-stack Developer at Saily

Join the dynamic team at altersolutions as a Full-Stack Developer. In this role, you will be responsible for designing and implementing robust web applications. You will work closely with cross-functional teams to create streamlined solutions and ensure optimal user experience.

At CreatorIQ, we are revolutionizing the way brands engage with creators, trusted by over 1,300 global brands and agencies. Our mission is to humanize businesses and amplify human impact. We embody our core values: intentionality, excellence, collaboration, and kindness.Recognized as one of the best companies to work for by BuiltIn LA and NY, we have also been named a Fastest-Growing Company in North America by Deloitte Technology Fast 500™ for four consecutive years. Our accolades include being recognized as a leader in IDC MarketScape: Worldwide Influencer Marketing Platforms for Large Enterprises in 2025, and achieving high ratings from G2 and Influencer MarketingHub.Join us in our flexible work environment that promotes both in-person and remote collaboration, fostering innovation and accommodating diverse work styles.Position OverviewWe are on the lookout for a Senior Full Stack Developer to contribute to our exciting new project, Gifting. This innovative solution allows brands to send products to creators seamlessly, manage fulfillment, and track outcomes, propelling the future of creator commerce.In this high-impact role, you will work across the entire technology stack to design and build scalable systems from scratch. Collaborating closely with product and design teams, you will define the architecture, deliver quickly, and enhance a completely new user experience.Technical StackFrontend: React, TypeScript, JoyUI/MUIBackend: Python (Django), Node.js (TypeScript)Infrastructure: AWS (Lambda, EC2)Key Responsibilities:Lead end-to-end feature development across both frontend and backend (equal contribution)Contribute to the architecture and design of our greenfield product, influencing technical direction from the outsetCreate scalable APIs and services leveraging Django and Node.jsDevelop user-friendly, high-performance interfaces with React and modern component libraries

Join our dynamic team at Talan as a Senior Full Stack Developer! In this role, you will leverage your expertise in both front-end and back-end technologies to create innovative solutions for our clients. You will collaborate with cross-functional teams to design, develop, and deploy applications that meet business requirements and enhance user experiences.Your proactive approach and commitment to quality will be essential as you tackle complex challenges in a fast-paced environment. If you are passionate about technology and eager to make a significant impact, we want to hear from you!

About Us:Planner 5D serves as a leading global platform for home design, engaging over 100 million users across 230 territories, including two users from Antarctica each month! Our innovative software streamlines the home renovation journey from ideation to execution, making it simpler than ever. You don't need to be a design expert to transform your living or working space. We are committed to enhancing the design experience and making the dream of customizing homes accessible to everyone.Our platform is available across various devices, including Web, iOS, Android, Windows, and MacOS, ensuring seamless synchronization for our users. Planner 5D is not merely software; it is a vibrant community of passionate and product-driven professionals from diverse backgrounds, collaborating across time zones with a common ambition to transform the home design industry.We are continuously on the lookout for talented individuals who are eager to take initiative and drive innovation within our expanding suite of tools. Join us in shaping the future of home design.We seek a skilled Senior Full-Stack Developer to join our web team, focusing on developing new features and enhancing our existing solutions.Our Tech Stack: PHP 8.4, Symfony, PHPUnit, MySQL, Redis, MongoDB, RabbitMQ, Git, Docker for back-end development. For front-end development: native JavaScript, jQuery (legacy code), TypeScript, React, Three.js (OpenGL), Webpack, WebSocket, Jest (unit tests), Docker, SVG.Note: Candidates should be prepared to work as a Contractor under a B2B service agreement.

Join Larian Studios as a DevOps Full Stack Developer in Warsaw! We are looking for a passionate and skilled individual to help us create cutting-edge solutions that enhance our game development and deployment processes. In this role, you will collaborate with cross-functional teams to ensure seamless integration and delivery of our gaming projects.

Join Saily, where we simplify connectivity for travelers by eliminating roaming fees and plastic SIM cards, providing secure mobile data at over 200 destinations. With millions of paying customers and countless travelers accessing our services, your contributions will truly matter.We embrace an AI-native Product Engineering culture, where:The Engineer is a builder, tackling customer challenges from concept to implementation.AI Agents assist in coding and automating repetitive tasks, enabling Engineers to focus on impactful work.Everyone is encouraged to identify improvement opportunities and implement solutions.Curiosity and knowledge sharing are core to our team dynamics.Our ultimate goal is to ensure a comfortable and hassle-free journey for our customers.At Saily, we prioritize growth over comfort, contribution over hierarchy, and impact over process. We empower talented individuals with context, autonomy, and AI to enhance their productivity.We are excited to welcome motivated junior engineers to our team. Here, your impact is defined not by years of experience, but by your passion for learning, discipline, and innovative thinking. You'll have the opportunity to shape your environment, and Saily will provide the platform for you to do just that.Expect hands-on experience with AI-driven software development, full access to learning resources tailored to your growth, and the chance to work on a successful and technically challenging product that you will be proud to build.Bring your skills and vision, and become part of the Saily journey!

Join psicro as a Full-Stack / Power Platform Developer and be part of a dynamic team that is dedicated to delivering innovative solutions. In this role, you will leverage your expertise in full-stack development and the Microsoft Power Platform to create impactful applications and streamline processes.As a developer at psicro, you will work on exciting projects, collaborating with cross-functional teams to drive success and enhance user experiences. If you are passionate about technology and want to make a difference, we want to hear from you!

Join our dynamic team as a Full-stack Developer, where you will play a pivotal role in integrating the Charge app within the electric vehicle ecosystem for a prestigious German automotive manufacturer. This project focuses on ensuring seamless communication between various Charge Point Operators (CPOs) and end-users, emphasizing real-time synchronization of charging station data (availability, power). Your efforts will contribute to a smooth user experience, from locating a charger to invoicing.

Join our dynamic team at Nordsec as a Senior Full Stack Product Engineer. In this role, you will leverage your expertise across the stack to design, develop, and deploy cutting-edge solutions that enhance user experiences and drive business success. You will work collaboratively with cross-functional teams to bring innovative product features to life.

At Samba TV, we redefine the global viewing experience through our innovative data and technology that tracks streaming and broadcast video worldwide. Join us on our mission to revolutionize how audiences connect with media, enhancing the engagement between viewers and advertisers through actionable insights derived from our vast data pools.We invite a passionate Full Stack Software Engineer to join our dynamic core team in Warsaw, Poland. In this pivotal role, you will be responsible for developing and refining our core systems, including those being re-engineered to leverage cutting-edge Large Language Models (LLMs). You will work on intricate, large-scale systems that analyze audio and data signals from hundreds of channels globally and various streaming platforms, enabling effortless extraction of valuable insights.

Join our dynamic team at Jobs for Humanity as a Mid-Level Full-Stack Developer. In this role, you will play a pivotal role in developing and maintaining web applications that make a difference for job seekers around the world. You will work on both front-end and back-end development, collaborating with cross-functional teams to deliver high-quality software solutions.

Join Universe Group, the innovators behind an ambitious AI-first web product in the visual content generation and editing space. As we transition into a phase of rapid scaling, we are on the lookout for a talented Full-Stack Developer to tackle architectural challenges and implement cutting-edge technologies into our product.Your future team includes: CEO, Full Stack Developer, Product Designer, PPC Specialist, Growth Product Manager, Product Manager, Data Analyst.Technology stack you will work with: React.js, Node.js, Nest.js, TypeScript, Redux, PostgreSQL, MongoDB, Redis, AWS, Kubernetes.Why you should join us:Collaborate closely with Ruslan — an experienced CEO with a proven track record. His previous startup, Eventmate, quadrupled its revenue within a year, secured $150K in investments (including from Google), and expanded into international markets including Europe and Brazil.Impact on business development — As a core team member, you will play an essential role in shaping the product while delving into architectural solutions and integrating the latest technologies into a product built from the ground up.A team of like-minded professionals — You will work alongside motivated individuals who support one another. We closely collaborate with technical teams across other businesses within the Universe Group, sharing insights and expertise.Opportunities for professional and career growth. We believe that the success of our business depends on the motivation and potential of each team member, so we continually invest in learning and development. You will also have the chance to advance to the Tech Lead position and contribute to team expansion and mentorship of junior specialists.Your future tasks will include:Defining and developing the product architecture, including technology selection, project structuring, and building scalable infrastructure to support a large number of users.Developing and maintaining...

Role overview Miratech is hiring a Senior Full Stack Developer with strong experience in Java and Angular. This role is based in Warsaw. The team builds and maintains web applications that support a range of technology projects. What you will do Design, develop, and maintain web applications using Java and Angular Focus on performance and user experience throughout the development process Work closely with cross-functional teams to deliver solutions that meet project goals Contribute technical expertise to the success of ongoing and new projects Who thrives here Developers who enjoy solving technical challenges and building reliable applications Team members who collaborate well across disciplines People who value a supportive and forward-thinking workplace

Join Complexio, where we are revolutionizing enterprise AI by developing an intelligence layer that automatically connects and enhances understanding of an organization’s personnel, processes, and systems. Our innovative platform processes both structured and unstructured data to create a dynamic Event Knowledge Graph, orchestrating a variety of AI models to discover hidden workflow enhancements and facilitate autonomous actions.As a Senior Full Stack Engineer, you will be at the forefront of shaping the user experience for thousands of enterprise users. Collaborating with a talented team of software engineers, data scientists, product specialists, and business analysts, you will help design next-generation web applications that bring our state-of-the-art automation capabilities to life. Your contributions will be vital in transforming complex data insights into user-friendly, efficient, and scalable interfaces, connecting advanced AI infrastructure with tangible business results.If you have a passion for integrating sophisticated front-end engineering, full-stack product development, and cutting-edge enterprise AI solutions, and thrive in a fast-paced, highly technical environment, we invite you to apply!

About Saily Saily, part of nordsec, helps travelers stay connected without roaming fees or physical SIM cards. Our platform delivers fast, secure mobile data in more than 200 destinations. With millions of paying users and hundreds of thousands online at any moment, we focus on making travel easier and more enjoyable. Our Product Engineering Culture Engineers own the entire product lifecycle, from initial concept through deployment. AI tools support coding and automate repetitive work, so engineers can focus on meaningful problems. Team members regularly suggest, discuss, and implement improvements together. We value curiosity, ongoing learning, and sharing knowledge across the team. Our main goal is to keep the travel experience smooth and stress-free for our users. We put growth ahead of comfort, impact above process, and contribution before hierarchy. Saily provides context, autonomy, and AI-driven tools to help people do their best work. About the Internship This is a 3-month, full-time paid internship based in Warsaw. Trainee Engineers work with experienced team members from day one, tackling real product challenges and building practical skills. Guidance is available, but interns are encouraged to take ownership and grow into their responsibilities. We use AI as a standard part of our workflow and emphasize strong engineering habits from the start. Outstanding interns may receive an offer for a full-time position at the end of the program. Who We’re Looking For Clear thinkers who learn quickly and take responsibility for their work Curious, self-disciplined individuals ready to contribute in a collaborative setting People eager for hands-on experience with real products, not just theoretical tasks If this sounds like the right fit, apply now to join the Saily team in Warsaw.

Join our team as a Senior Full Stack Engineer and contribute to cutting-edge projects that push the boundaries of technology. You will work in a collaborative environment, utilizing your expertise in both front-end and back-end development. We're looking for someone who is not only technically proficient but also passionate about delivering high-quality solutions.

Join our vibrant team at Capital, a premier trading platform that is ambitiously expanding its reach globally. Recognized for our award-winning products, we pride ourselves on leveraging cutting-edge technology to provide an unparalleled client experience. We are constantly seeking exceptional talent to help us maintain our high standards of quality.We are currently on the lookout for a skilled QA Engineer with a strong background in both manual and automated testing. If you thrive in a fast-paced environment and enjoy collaborative teamwork, we invite you to contribute to the excellence of Capital.com’s trading platform.

Bolt is looking for a Senior Full Stack Engineer in Warsaw to help shape and expand an internal task management platform. This role centers on building systems that support real-time decision-making and optimize workflows for agents. What you will do Develop and enhance features for the internal platform, focusing on dynamic task distribution and intelligent workforce management. Create efficient user interfaces that enable agents to work effectively and access actionable insights. Lead frontend architecture decisions and guide the technical direction of the team. Work across the full technology stack, collaborating with engineers and stakeholders. Role overview This position involves tackling product and engineering challenges, from designing scalable interfaces to implementing systems that streamline internal operations. The Senior Full Stack Engineer will play a key part in both technical leadership and hands-on development.

Role Overview Miratech is looking for a Senior Full Stack Developer with experience in Java and Angular. Based in Warsaw, this role joins an engineering team that delivers solutions for a range of client projects. What You Will Do Work on full stack development tasks using Java and Angular Collaborate with engineers to build and improve client-facing applications Contribute to project planning and technical discussions What We Offer Opportunities to develop technical skills in a team setting Collaborative work environment Projects that support client success