Senior Full Stack Engineer – Platform

Join our dynamic team at HOS247 LLC as a Senior Full-Stack Developer in a fully remote capacity. We are on the lookout for talented developers who are eager to enhance and innovate our existing suite of products. In this role, you will work closely with our Chief Technology Officer, collaborating on developing and refining solutions that drive our business forward.The ideal candidate will possess a robust background in full-stack development, with a minimum of three years of hands-on experience in Angular 2+ and Node.js.

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

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

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!

We are seeking a highly skilled and motivated Senior Full Stack Developer proficient in Python 3 and C++. In this role, you will work closely with our engineering and development teams to design, implement, and maintain robust software solutions that meet our clients' needs.Your expertise will help in driving innovation and developing new features while ensuring the performance, quality, and responsiveness of applications.

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.

Creatunity LLC is on the lookout for a talented and experienced technical leader to oversee our team of senior full-stack developers. This pivotal role requires a strong background in full-stack engineering alongside a proven capacity for leadership in developing and launching innovative IT products and applications. The ideal candidate has a history of writing production-quality code, managing delivery processes, mentoring developers, and successfully deploying intricate solutions powered by AI-assisted development tools. Contract Type: Independent Contractor AgreementWhat You'll Do Lead a skilled team of senior full-stack developers while coordinating technical execution across various projects. Develop scalable full-stack features utilizing Next.js, React, TypeScript, Prisma, and PostgreSQL. Employ Cursor IDE and AI coding assistants to enhance development workflows and boost productivity. Architect systems, design database schemas, and fine-tune performance-critical queries. Integrate and manage third-party APIs (e.g., Stripe, Supabase, music platforms, SaaS services). Create advanced admin dashboards, internal tools, and intricate user interfaces. Manage projects from inception to completion — from gathering requirements and system architecture to deployment and optimization. Set best practices for code quality, testing, documentation, and deployment pipelines. Mentor developers, conduct code reviews, and foster engineering excellence throughout the team.

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 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.

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 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 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 MARGO as a Senior Fullstack .NET Developer!Are you passionate about technology and looking to make an impact in the field of IT consulting? MARGO, an international leader in IT consulting, is seeking a Senior Fullstack .NET Developer with Angular expertise to join our dynamic team in Warsaw. Established in 2005 in Paris, with additional offices in London and Warsaw, we pride ourselves on providing top-tier IT experts for complex enterprise projects across Europe. At MARGO, we are committed to building long-lasting partnerships, ensuring transparency in our processes, and maintaining technical excellence in everything we do.

About Us:MARGO Group is a leading international IT consulting firm established in 2005 in Paris, with additional offices in London and Warsaw. We specialize in IT outsourcing and providing top-tier experts for intricate technology projects across Europe. Our focus is on fostering long-term partnerships, maintaining transparency, and promoting continuous development.About the Role:We are seeking a Senior .NET Developer with Angular expertise to engage in long-term enterprise banking projects within structured development environments. You will be involved in creating complex business applications while collaborating closely with Analysts, QA Engineers, and Product stakeholders.This position is intended for seasoned developers with over 5 years of experience who prioritize clean code, testing, sound architectural practices, and uphold high engineering standards.Work Model: Remote-first with scheduled on-site team meetings (2 days per month in Warsaw). Office attendance is primarily for team alignment, planning sessions, and direct collaboration.

Join altersolutions as a Mid/Senior Angular Developer in Warsaw, where you will have the opportunity to work on innovative projects and enhance your skills in a collaborative environment. You will be responsible for developing dynamic web applications using Angular, collaborating with cross-functional teams to design and implement user-friendly interfaces.

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.

The project involves enhancing the architecture of a system that supports clients in branches and partner locations.RESPONSIBILITIES:Participate in architectural changes to the system.Implement new functionalities using Angular 19 and Java 21.Refactor existing code for improved performance.Create integrations with REST services.Optimize performance and implement security solutions.Assist in designing and documenting technical specifications.

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.