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 our dynamic team at Inetum Polska as a Python Software Engineer, where you'll play a pivotal role in the development and upkeep of cutting-edge data processing solutions tailored for a vast telecommunications environment. Your primary focus will be on crafting Python-based modules that efficiently load, transform, and analyze network data, in addition to creating supportive tools for monitoring, reporting, and SLA-related processes.Key Responsibilities:Design and implement new Python modules for effective data processing within telecommunications networks.Develop and sustain software that enhances network quality monitoring, comprehensive reporting, and SLA calculations.Construct and optimize Python scripts for data loading and transformation in Oracle databases.Engage in ongoing transformation projects to enhance our technical environment.Provide support and maintenance for existing solutions in production.Participation in on-call support (24/7) may be required, typically one week per month. This rotation is currently inactive but could be reinstated in the future, with readiness to participate if needed.

Waymo is at the forefront of autonomous driving technology, dedicated to becoming the world's most reliable driver. Originating from the Google Self-Driving Car Project in 2009, our focus has been on developing the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access while preventing countless traffic-related fatalities. Our Waymo Driver powers a fully autonomous ride-hail service, with the capability to be adapted across various vehicle platforms and applications. With over ten million rider-only trips completed and more than 100 million miles driven autonomously on public roads, complemented by extensive simulation across 15+ U.S. states, we are redefining transportation.The Waymo Car Experience team is tasked with delivering safe and enjoyable experiences for all riders. As a Senior Software Engineer, you will collaborate closely with the Operations team to identify and mitigate challenges such as lost items and incorrect passenger seating using data-driven insights and machine learning models.

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.

Join Box as a Senior Software Engineer specializing in File Systems and play a pivotal role in enhancing our innovative content management platform. At Box, we empower organizations to thrive in the AI-first era by optimizing collaboration and workflow management. As part of the Content Capabilities team, you'll contribute to our ambitious goal of supporting the Box Content Cloud's exponential growth by developing new platform features that enable intuitive user experiences. Collaborate with a talented team to tackle complex challenges in content management and make a significant impact on productivity for millions of users at leading enterprises.

As a Software Validation Engineer III at Collabera, you will play a critical role in ensuring the quality and reliability of our software solutions. You will be responsible for developing and implementing validation strategies, conducting thorough testing, and collaborating with cross-functional teams to enhance product performance. Your expertise will contribute to continuous improvement initiatives and compliance with industry standards.

Role overview Veeam Software seeks a Senior Python and AI Developer to help design solutions that enhance the company’s data management and protection products. This position is located in Warsaw, Poland. What you will do Design and develop new features using Python and AI methods Collaborate with a team of experienced engineers and other professionals Offer ideas and feedback that influence the direction of Veeam’s products Location The role is based on site in Warsaw, Poland.

Join the Innovative Team at SienaAt Siena, we are pioneering the first intelligence layer for customer experience. Our vision is to create an operating system of AI agents that seamlessly learn, remember, and act across all customer touchpoints—from support interactions to shopping experiences, including voice and social media.Siena goes beyond mere automation; we empower shopping agents, foster persistent customer memory, deliver actionable business insights, and cultivate empathetic interactions that resonate with users.We are redefining how businesses comprehend and engage with their customers, transforming every interaction into a learning opportunity for future enhancements.About Our TeamOur small, distributed team is committed to making a significant impact. Each member plays a vital role, as we emphasize efficiency and creativity in our work, making collaboration both swift and enjoyable.If you’re passionate about creating groundbreaking products, this is your chance. We are developing agents that do more than just respond to inquiries; they remember customers, learn from each engagement, and unify experiences across channels.Your RoleAs a Fullstack Software Engineer at Siena, you will manage projects from inception to completion, enhancing and optimizing features within our AI-driven customer support automation platform. Collaborating closely with the product team, you will help shape our development roadmap while constructing reliable, high-performance systems. Your contributions will facilitate millions of customer interactions with global brands, where your work's reliability and speed will directly influence business success. If you enjoy tackling real-world challenges, excel in dynamic environments, and take pride in delivering exceptional products, this role is perfect for you.Your ResponsibilitiesDesign, develop, and maintain scalable features across the entire tech stack (frontend, backend, and infrastructure).Collaborate with Product to break down project scopes into iterative, impactful releases.Integrate advanced LLM capabilities into real-world enterprise workflows.Work on an AI-first product, embedding cutting-edge LLM capabilities into customer support frameworks.Address complex engineering challenges, optimizing API performance and refining microservices architecture.Enhance and maintain our cloud infrastructure (AWS) with a DevOps mindset.Exhibit high levels of agency and ownership—taking initiative, making decisions, and propelling ideas to production.

Join the forefront of digital security with the world's most advanced VPN.As a passionate innovator and problem-solver, become part of the team that developed Threat Protection Pro and the NordLynx protocol—the fastest VPN globally. Our tools empower individuals by reclaiming their privacy, security, and control over their digital lives.Your Contributions: Play a pivotal role in helping millions regain authority over their online security, privacy, and data.Key Responsibilities:Design, develop, and sustain data curation and ingestion services tailored for the Threat Intelligence team.Collaborate on and implement robust architectural solutions, including distributed computing pipelines, microservices, and database integrations.Engage actively in code reviews, provide constructive feedback, and ensure top-notch technical documentation.Innovate and design new services to enhance data feed quality.Maintain adherence to coding standards, ensuring code is maintainable, readable, and secure, while fostering a results-oriented mindset.Continuously generate and discuss new ideas in the context of product development and cybersecurity.Offer technical guidance and leadership to team members.Essential Qualifications:Proficient in Python, with a strong grasp of core concepts, syntax, and data structures.Experience in designing microservice architectures and facilitating effective communication.Familiarity with data storage solutions, especially PostgreSQL.Ability to write clean, maintainable, and efficient code.Hands-on experience with cloud infrastructure technologies such as Docker and Kubernetes.Exceptional problem-solving skills with a knack for analyzing and resolving complex issues.Demonstrated capacity for rapid learning and proactive problem detection.Detail-oriented with a structured approach to research and implementation.

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.

Join Box as a Senior Backend Software Engineer and be part of a pioneering team that is reshaping the world of Intelligent Content Management. In this role, you will work on high-scale, distributed systems, tackling significant engineering challenges such as performance optimization, auto-scaling microservices, ensuring data integrity during large migrations, and maintaining search indexing accuracy. Your contributions will directly impact thousands of enterprise customers, helping them manage their critical business content effectively. If you're ready to drive innovation in AI-powered content management, we want to hear from you!

As a Senior Software Engineer focusing on AI Retrieval at Asana, you will play a pivotal role in designing and implementing cutting-edge solutions that enhance our AI capabilities. You will collaborate with cross-functional teams to build scalable systems that improve information retrieval and user experience. Your expertise in software engineering and artificial intelligence will help drive innovation and set new standards for efficiency and performance.

Design and develop robust software systems tailored to client specifications.Lead and mentor development teams to ensure project success and adherence to best practices.Translate business requirements into technical designs and solutions.Optimize applications for performance, security, and quality, ensuring high standards are met.Create and maintain comprehensive technical documentation.Provide accurate estimates for development efforts and timelines.Establish and enforce software development standards across projects.Propose innovative technical solutions to address business challenges and technical issues.Collect and analyze software metrics to drive improvements.Manage software configuration and release processes effectively.Contribute to various phases of software development including requirements analysis, testing, quality assurance, change management, and deployment.Develop testing tools and conduct thorough testing of solutions.Document development processes and create prototypes for new solutions.Provide 2nd and 3rd line support to resolve complex issues.

About Us:RTB House stands as a pioneering performance demand-side platform (DSP), harnessing proprietary Deep Learning AI algorithms to empower brands in their growth journeys. As a market leader, we drive performance through Deep Learning across the entire purchase funnel.Established in 2012 and currently operating in over 90 markets, RTB House is firmly private-by-design, advocating for first-party advertising and a relentless commitment to innovation. Our end-to-end Deep Learning-powered AdTech products and solutions are tailored to maximize conversions, facilitate new customer acquisition, enhance engagement, and stimulate long-term demand for our global clientele.We are on the lookout for a talented Software Engineer with substantial backend and microservices development experience to join our dynamic team. In this role, you will design, develop, and maintain web applications, microservices, and internal tools, while also contributing to frontend development as necessary.

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 the Positive Side of Technology Known as ZnanyLekarz in Poland and Doctoralia in Spain, we operate globally as Docplanner.Our mission is to develop innovative technology that enhances the quality of life by connecting patients with healthcare providers, streamlining clinical workflows, and supporting healthcare systems utilized by millions every month.At Docplanner, engineering is not just about code; it’s about creating dependable and scalable systems that have a profound impact on people's lives. What we deliver matters in high-pressure situations involving patients, doctors, and clinics, which necessitates a commitment to quality, sound judgment, and strategic thinking.In 2026, we will boost our delivery capabilities across various product domains by transforming our development approach—utilizing AI-driven tools to enhance engineering efficiency and set new standards for designing, delivering, and refining our systems.Why Join Us?Because it’s rewarding to share with your loved ones how you’re contributing to a better world. You’ll rest easy knowing your work has significance and aligns with your values.We aspire to help people lead longer, healthier lives, and this begins with you being your true self. We acknowledge that embracing a diverse range of human experiences enhances healthcare for everyone. We are committed to diversity and will encourage you to bring your whole self to work. You can choose to work fully remotely or in a hybrid model from our offices in Barcelona or Warsaw, depending on team assignments.Key ChallengesAs an engineer at Docplanner, you may tackle challenges in the following areas:Marketplace & SearchDevelop the next-generation marketplace system, overseeing the complete journey from discovery to rebooking. You will harness AI-driven search and onboarding processes to unlock new user engagement and transform one-off bookings into ongoing care relationships.Practice Management Systems (PMS)Create advanced software solutions to support doctors globally. Consolidate the current fragmented landscape and utilize AI to reinvent how doctors prioritize patient care.AI-Powered Clinical Tools (Noa Medic)Design AI-enhanced clinical workflows that go beyond basic administrative tasks. You will develop deep integrations with PMS/EHR systems that become essential tools for medical professionals.

About Aurora Solar Aurora Solar builds software that helps solar professionals design, sell, and install solar projects for both residential and commercial customers. Our platform supports millions of solar projects worldwide, providing tools and insights that make solar energy more accessible. Aurora Solar has received recognition as one of the "Best Remote Companies To Work for in 2025" by BuiltIn.com and is a Certified Green Business (CGB) by the city of San Francisco for the second year in a row. Team Overview The International team drives Aurora Solar’s expansion into new markets. Engineers on this team create solutions that address local compliance needs and adapt workflows for different regions. Collaboration with stakeholders from various countries helps the team understand local solar sales, design, and installation practices. The group values knowledge sharing, inclusivity, and continuous improvement, celebrating progress whether it’s a new feature launch or a more resilient system. Role Overview The International Software Engineer will help strengthen Aurora Solar’s platform as the company grows globally. This role focuses on building scalable systems that support new initiatives and enhance the experience for both solar professionals and homeowners. The position offers opportunities to take on increasing responsibility and contribute to smarter, simpler solutions for the clean energy transition. This is a hybrid role based in Warsaw, Poland.

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 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.

Please be aware that this position requires relocation to our Milan office.About SatispaySatispay aims to transform everyday payments, making them straightforward, equitable, and accessible to all. Our mission has evolved to shape the future of finance.We are a movement empowering millions, united by a common goal to address significant challenges. We act swiftly, think innovatively, and trust one another to question the status quo, continuously learning and evolving.Joining the Core Team, you will be engaged with critical systems that manage interactions with external banks, orchestrate payments, and establish essential infrastructures for Identity and Access Management (IAM). The team also handles risk services, specifically credit risk management and fraud detection.If you're eager to contribute to something impactful that underpins our product teams, you've found the right place.Your ResponsibilitiesAs a Senior Backend Software Engineer on the Core Team, you will play a vital role in architecting the backbone of our payment platform. You will ensure the technical quality and timely delivery of complex systems that have a significant impact across various services and product teams.Your daily tasks will include:Engineering core platform domains: Contributing to the design and development of our most critical systems, including the Transaction Ledger, Identity & Access Management (IAM), and Payment Orchestration. You will ensure these systems remain high-performing, scalable, and functional for seamless integration by our product teams.Scaling risk & financial engines: Optimizing and implementing services dedicated to bank integrations, credit risk, and real-time fraud detection, building robust logic that safeguards our financial ecosystem.Cross-team technical leadership: Leading technical analysis for projects across multiple services, facilitating discussions, and producing high-quality documentation (Smart Papers) that ensure clarity and robustness in your designs for stakeholders and other engineering teams.