Senior Software Engineer | React | UCP Team

Join Nord Security and innovate the future of online safety.At Nord Security, we empower users and businesses to reclaim their online privacy and security. Our diverse range of solutions—from VPNs and password managers to threat intelligence and eSIMs—are designed to address complex security challenges, earning the trust of millions around the globe.As a Sen…

Join NordProtect and be a part of a pioneering identity theft protection service.As a key member of the Nord Security team, you will contribute to the development of an innovative platform that integrates dark web monitoring, credit tracking, and identity theft insurance into a single, powerful solution.Your contributions will be vital! You will empower individuals to safeguard their identities, identify threats proactively, and enhance their recovery capabilities.Welcome to NordProtect, your comprehensive shield against identity theft, financial fraud, and online scams. We deliver extensive monitoring, prompt threat detection, fast recovery, and dependable insurance, offering unmatched security and peace of mind for both individuals and businesses. The real champions of this advanced solution are cybersecurity and insurance professionals, and we invite you to join us in this mission to protect digital identities.Key ResponsibilitiesDesign and create microservices tailored to the daily needs of users requiring identity theft protection, ensuring the utmost security while managing a significant volume of personal identifiable information.Collaborate with cross-functional teams to guarantee the smooth integration and functionality of microservices throughout Nord Security's product suite, ensuring a cohesive and seamless user experience.Provide mentorship and technical direction to team members, fostering the growth of best practices within the engineering team.Play a crucial role in shaping the team's vision and contributing towards long-term objectives.Participate in research and development efforts to discover and implement advanced technologies as needed.Encourage effective communication and collaboration among team members and with other engineering, product, and design professionals across various teams.Demonstrate a collaborative mindset by actively engaging in discussions, challenging ideas, and embracing redesigns that contribute to collective success.Core QualificationsProven experience with backend technologies, particularly with Go.Strong understanding of system design principles, including knowledge of appropriate design patterns and their application.Familiarity with Agile methodologies and continuous integration practices.Ability to communicate technical concepts effectively to varied audiences.Experience in building scalable and resilient systems.

CD Projekt Red is hiring a Software Engineer (C++) to focus on online and multiplayer features at their Warsaw studio. This role is part of the engineering department and helps shape the multiplayer experience for players around the world. Role overview This position centers on developing and refining systems that power multiplayer gameplay. Collaboration is key, as the engineer will work alongside other developers and team members to build engaging online features. What you will do Collaborate with engineers and other team members to develop and enhance online and multiplayer systems. Use C++ to improve game performance and system efficiency. Design and implement new features that support immersive multiplayer experiences. The team Work with a group of experienced professionals dedicated to creating memorable gaming experiences. The team values technical expertise, creativity, and a drive to advance multiplayer gaming.

Join our dynamic team as a VFX Artist at Sperasoft, where you will play a pivotal role in crafting breathtaking visual effects for an exciting AAA+ game project. Collaborate with a talented team of Designers, Artists, and Engineers to create a diverse array of stunning effects that enhance player immersion and elevate the gaming experience.

Role overview This Level 3 Application Support Engineer position at SoftwareMind centers on supporting complex software applications for clients in the telecommunications industry. Based in Warsaw, the role addresses advanced technical issues and helps maintain strong performance and reliability standards across client systems. What you will do Investigate and resolve challenging application problems reported by telecommunications clients Collaborate with development teams to identify root causes and implement effective solutions Support ongoing service delivery by ensuring applications operate smoothly and efficiently Impact This role plays a key part in delivering dependable software solutions for telecommunications clients, directly supporting the quality and reliability of their services.

Join us at Lucky Duck Games, a proud member of the Goliath Group, as we embark on an exhilarating journey of growth and innovation in the gaming industry. We are on the lookout for a dynamic and skilled Lead Software Engineer (Unity) to be a vital part of our newly established Goliath Digital Team. In this pivotal position, you will have the unique opportunity to influence the direction of our programming team and play a crucial role in developing engaging board game companion apps and captivating digital games. This is a chance to lead a team poised for expansion to over 50 members, making a lasting impact on the future of Lucky Duck Games and the Goliath Group.

At Rydoo, we strive to simplify expense management, allowing individuals to concentrate on what truly matters rather than drowning in receipts. With over a million users relying on us, we facilitate faster and smarter expense submission, approval, and control.In line with this mission, Semine has been developing AI technologies since 2015 to eliminate the tedious and repetitive tasks in accounting, empowering finance teams to work more efficiently.In July 2025, Semine united with Rydoo to revolutionize the future of financial automation. Together, we're crafting a comprehensive, AI-driven platform designed to streamline accounts payable and expense management, enabling businesses to operate with greater simplicity, speed, and intelligence.Our international team exceeds 200 talented individuals who believe that innovative technology should enhance the quality of life. If you have visionary ideas and a desire to create impactful solutions, you will find a welcoming environment here.

Location: Warsaw, Poland - Hybrid (4 days on-site / 1 day remote)Contract: B2B · 25-40 k PLN net / month + RSUsWhy Fresha & Why Now?Fresha is revolutionizing the global beauty and wellness industry. With over 120,000 businesses, 450,000 professionals, and millions of clients, our platform manages more than 1 billion appointments, streamlining everything from scheduling to payments.Join us during this explosive growth phase—your contributions will be visible across the globe in a matter of days, not months.What You’ll DoAt Fresha, we view AI as a catalyst for accelerating feature delivery, not merely as a coding aid. We equip our engineers with cutting-edge tools (such as Claude, GitHub Copilot, and Cursor) to minimize mundane tasks. This allows you to concentrate on delivering impactful product features. We seek engineers who can effectively utilize these resources to enhance productivity within our 6-week cycles, expediting the transition from concept to code while ensuring technical integrity, security, and a superior user experience.* Take charge of our core booking & scheduling engine—the heartbeat of Fresha—ensuring it scales efficiently and provides seamless experiences for millions.* Design, construct, and launch new user-facing features using React + TypeScript, impacting a vast audience of professionals and clients.* Manage features from inception to completion: research, technical design, implementation, testing, deployment, and monitoring.* Utilize (and enhance) our Design System to rapidly deliver refined UI while elevating standards for consistency.* Develop robust automated tests (Cypress, Jest, React Testing Library) and maintain a healthy CI/CD pipeline.* Collaborate closely with Product, Design, Backend, Infrastructure, and Mobile engineers to bring features from ideation to launch and beyond.* Accelerate your efforts with AI: leverage AI agents, LLM-powered coding tools, and access a variety of AI resources (e.g., chatbots, development assistants).* Interested in backend, DevOps, or mobile? Grow your skills in those areas too!

WHAT IS BOX? Box (NYSE:BOX) stands at the forefront of Intelligent Content Management. Our innovative platform empowers organizations to enhance collaboration, manage comprehensive content lifecycles, safeguard essential data, and revolutionize business workflows with enterprise AI. In this new AI-first business landscape, we enable companies to flourish. Established in 2005, Box simplifies operations for some of the world's leading organizations, including JLL, Morgan Stanley, and Nationwide, with our headquarters located in Redwood City, CA, and offices in the U.S., Europe, and Asia.Joining Box means you will play a pivotal role in advancing our platform. Content is the backbone of daily operations, encompassing billions of files and information shared across teams and departments—ranging from contracts, invoices, employee records, to marketing assets. Our mission is to infuse intelligence into content management, enabling our customers to entirely transform their workflows. With the integration of AI and enterprise content, the potential to reshape how the world collaborates has never been more significant, and at Box, you will be at the forefront of this transformative journey.WHY BOX NEEDS YOUBox Apps is transforming how enterprises utilize content by delivering an intelligent no-code builder that facilitates automation, orchestration, and faster decision-making. We are investing in our Warsaw hub to scale this innovative product globally. As a Senior Software Engineer, you will spearhead projects from conception to production, elevate engineering standards, and influence our technical strategy for a rapidly expanding product utilized by thousands of customers.WHAT YOU’LL DOTake the lead in designing and delivering complex, user-facing features and platform capabilities for the Box Apps frontend.Collaborate closely with product, design, and backend teams to define APIs, data contracts, and seamless end-to-end experiences.Drive the creation of technical specifications, architectural reviews, and design documentation that prioritize speed, quality, and maintainability.Advocate for reliability through rigorous testing (unit/integration/e2e), performance profiling, and observability.Mentor fellow engineers through pairing sessions, design reviews, and constructive feedback, enhancing team practices.Break down complex problems, develop roadmaps, and deliver iteratively in line with quarterly objectives.

About Aurora SolarAt Aurora Solar, we are dedicated to revolutionizing the solar industry. Our award-winning software empowers solar professionals with the data and technology they need to simplify and streamline solar adoption. To date, we have facilitated the design of millions of solar projects, enabling companies to effectively sell, design, and install residential and commercial solar solutions with precision and efficiency.Recognized as one of "The Best Remote Companies To Work for in 2025" by BuiltIn.com and honored as a Certified Green Business (CGB) by the city of San Francisco for the second consecutive year, we are committed to supporting the global transition to solar energy.About the TeamWe are transforming the solar sales experience by managing Aurora’s sales narrative platform and financial integrations that enable solar professionals to deliver tailored, homeowner-focused proposals. Our ambitious mission is to empower our customers to articulate value confidently and offer financing options that genuinely meet customer needs.Our team is collaborative and inclusive, believing that shared knowledge leads to superior outcomes. We celebrate achievements, whether launching new features, enhancing existing processes, or developing skills. If you excel in an environment where thoughtful engineering meets impactful work, you’ll thrive here.About the RoleAs a Senior Software Engineer on the Sales Mode team, you will play a pivotal role in advancing systems that drive the clean energy transition. You will enhance our platform, contribute to innovative greenfield initiatives, and advocate for scalable solutions that improve experiences for both solar professionals and homeowners.We seek individuals who are curious, intentional collaborators, and passionate about producing high-quality software that endures the test of scalability. If you are motivated by meaningful challenges and real-world impact, this is your chance to aid in accelerating the adoption of solar energy. This position is hybrid, based in Warsaw, Poland.

Join Turnitin as a Senior Fullstack/Backend Software Engineer, where your expertise in backend development, particularly with Java and serverless architectures, will be pivotal. We are seeking engineers who are enthusiastic about creating scalable distributed systems and delivering robust software solutions for our acclaimed educational platform.As an integral member of our shared services team, you'll spearhead the development and enhancement of the core systems supporting both our existing and upcoming applications.Key Responsibilities:Architect, develop, and optimize scalable backend services utilizing Java and serverless technologies (AWS Lambda).Design and implement RESTful APIs and event-driven architectures.Contribute to frontend component development as required.Enhance performance and cost-effectiveness of existing services.Collaborate with cross-functional teams, including Architects, Product Managers, and engineering leads, to deliver innovative solutions.Mentor junior developers and promote best practices.Establish and manage CI/CD pipelines.Maintain high-quality coding standards through peer reviews, automated testing, and compliance with development best practices.Document shared components comprehensively, providing usage guidelines and examples.

At Larian Studios, we take pride in our dedication to creating exceptional role-playing games that resonate with players worldwide. With multiple prestigious awards under our belt, we are the creative force behind beloved titles such as Baldur’s Gate 3 and Divinity: Original Sin 2. As we embark on exciting new projects, we are on the lookout for an Associate Lead Engine Programmer to join our talented team. If you're passionate about game development and eager to contribute to high-caliber gaming experiences, we want to hear from you!

Join the award-winning team at Larian Studios, renowned for creating high-quality role-playing games. As we embark on exciting new projects, we are seeking a skilled Lead Infrastructure Engineer to manage and guide our systems administration operations. This is an exceptional opportunity to contribute to the development of groundbreaking games like Baldur's Gate 3 and Divinity: Original Sin 2.

Larian Studios, renowned for our award-winning role-playing games, is on the lookout for a Tools Director to contribute to our next big projects. Join the creative minds that brought you Baldur’s Gate 3 and Divinity: Original Sin 2, and help us deliver the high-quality gaming experiences our fans cherish.

Are you passionate about leading a team while writing high-quality code? Join Sigma Software as a Senior Software Engineer / Team Leader! In this pivotal role, you will guide a talented team of engineers, overseeing code reviews, design critiques, and career development while collaborating with our integration teams.Design and develop scalable solutions, ensuring a balance between production-ready code and rapid proof-of-concept development.Take ownership of sprint planning and execute the quarterly roadmap effectively.Serve as the final escalation point for complex technical challenges.Quickly learn and adopt new technologies while strategically managing technical debt.

Join our innovative team at CD Projekt Red as a Senior Technical Artist specializing in Visual Effects (VFX). In this pivotal role, you will collaborate with artists and engineers to create stunning visual experiences for our games. Your expertise will be instrumental in developing and implementing visual effects that enhance gameplay and storytelling.

Join CD Projekt Red, a leading video game developer known for creating immersive open-world experiences. We are seeking a passionate and skilled Lead Gameplay Engineer specializing in NPC Behavior. In this role, you will drive the design and implementation of complex behaviors in our non-playable characters, enhancing player engagement and storytelling.You will lead a talented team of engineers, collaborating closely with designers and artists to develop AI systems that bring characters to life. Your expertise will be crucial in shaping the future of our games, ensuring they are not only innovative but also deliver memorable experiences for players.

Senior Software Engineer, Data Foundations ABOUT THE ROLE At Peloton, we view Data as a Product—a vital asset that drives every member interaction and influences business decisions. Our Datastores team is committed to offering a dependable, secure, and high-performing data persistence layer for application services throughout the organization. Our core principles include: 1. Safeguard the data, 2. Optimize for scalability, speed, and reliability, and 3. Minimize manual effort. We are seeking a Senior Software Engineer with extensive experience in constructing and managing data-intensive systems to join our Datastores team. This position is perfect for a backend engineer who has developed and maintained production systems heavily reliant on databases, caching layers, and data pipelines, and who is eager to advance their knowledge in scalable, cloud-native data infrastructures. You will collaborate at the intersection of application engineering and data platform reliability, working alongside service teams to enhance the storage, access, scalability, and observability of data across Peloton’s ecosystem. YOUR DAILY IMPACT AT PELOTON Your responsibilities will include: Designing, building, and maintaining backend systems that depend on scalable and highly available data persistence layers. Collaborating with service teams to refine database design, enhance query performance, and optimize data modeling. Contributing to automation efforts surrounding infrastructure provisioning using tools like Terraform and Backstage, while improving developer experience by creating self-service tools for databases and caching systems. Focusing on observability, performance insights, and autoscaling strategies for production datastores. Participating in architectural discussions regarding multi-regional data persistence and global scalability. This role merges hands-on backend engineering with significant exposure to cloud data systems and platform reliability challenges. WHAT YOU BRING We are looking for proficient backend engineers who are data-centric—those who have built systems where data performance, reliability, and modeling are crucial. 5+ years of software engineering experience in developing production backend systems. Strong familiarity with relational databases such as PostgreSQL or MySQL, including schema design, indexing, and query optimization. Experience with NoSQL datastores like DynamoDB, Redis, Elasticsearch, or Memcache. Exposure to data pipelines, event-driven architectures, and cloud technologies.

Join our dynamic team at Sigma Software Group as a Principal Software Engineer specializing in Ruby. In this role, you will lead innovative projects, drive technical excellence, and mentor junior developers. Your expertise will be pivotal in shaping our software solutions and enhancing our development practices.

Join Box Inc. as a Senior Fullstack Software Engineer and take the next step in your career! We are looking for an experienced engineer who is passionate about building scalable web applications and innovative solutions. In this role, you will work collaboratively with cross-functional teams to design, develop, and maintain high-quality software that meets the needs of our clients.