Backend Software Engineer | Node.js | Remote

Join Hostinger as a Backend Software Engineer specializing in Node.js in a fully remote position! In this role, you will be responsible for developing high-performance backend solutions that support our web applications and services. Collaborate with a dynamic team of developers and contribute to exciting projects that empower our users around the globe.

Join our dynamic team at Sigma Software Group as a Senior Software Engineer / Team Leader, where you'll play a pivotal role in leading innovative projects and guiding a skilled team of developers. You will be responsible for architecting robust software solutions, ensuring high-quality code, and mentoring junior developers.We are looking for a passionate leader who thrives in a collaborative environment and is eager to take on challenges. If you have a strong background in software engineering and a desire to lead a team towards success, we want to hear from you!

Join Nearmap as a Lead Senior Software Engineer on our dynamic API team, where you will spearhead the design, implementation, and delivery of innovative software solutions that align with our business goals. Your expertise will empower our developers to tackle real-world challenges faced by our users.In this pivotal role, you will collaborate closely with the Product team to analyze requirements, design robust software solutions, and elevate the capabilities of the development team through best practices and mentorship. You will have the unique opportunity to contribute to a powerful platform that manages petabytes of aerial imagery, fuels sophisticated AI models, and provides real-time geospatial insights to clients worldwide. Our systems are designed for high performance, scalability, and cutting-edge innovation, managing everything from data ingestion to API delivery and customer applications.This is a rare chance to influence quality practices across an extensive platform integrating high-resolution imagery, AI-driven insights, and scalable data delivery systems while establishing API initiatives in our new Warsaw engineering hub. Your contributions will be instrumental in ensuring the reliability of systems that are transforming decision-making processes across various industries.At Nearmap, we value versatile engineers who possess leadership skills and enthusiasm for overcoming new challenges across the full technology stack as we continue to advance our capabilities.

Viktor is your AI-powered coworker, seamlessly integrating with Slack and Microsoft Teams to connect with thousands of tools, delivering real solutions for diverse sectors including finance, marketing, operations, and engineering. Our mission is to consolidate the SaaS landscape, providing companies with an efficient, singular teammate.Our team may be small, but the impact we aim for is immense.The RolePicture this: a team member in Slack requests Viktor to reconcile their Stripe payouts against their financial records. In less than a minute, Viktor completes the task. This success results in new customers joining our platform. Your mission will be to enhance Viktor's capabilities, increasing reliability and expanding our customer base. You'll be a pioneer, creating a platform that others will aspire to replicate.In Warsaw, our product, growth, and engineering teams collaborate closely. You'll work alongside individuals who interact with customers daily, partner directly with the founders, take ownership of significant product areas, and see your code in production on the very same day you write it.What You'll DoDevelop the agent runtime. Create a sandboxed execution environment, orchestrate tools, and manage memory. This is the core of Viktor that translates Slack commands into actionable items through real APIs.Implement integrations. We connect with thousands of tools like Salesforce, Notion, Stripe, QuickBooks, HubSpot, Shopify, and more, based on customer requests. You'll handle OAuth, webhooks, schema mapping, and error management, unlocking new customer opportunities with each integration.Manage infrastructure. With over 600,000 tool calls daily, ensure Viktor remains fast and cost-effective through container orchestration, autoscaling, and task management.Deliver product features. Features will go live directly to users via Slack and Teams, allowing you to witness them being utilized within hours.Adapt to various challenges. As part of a small team, you will tackle diverse tasks that may not be outlined here.How You'll Know You're SucceedingYou’ll be pushing updates to production daily, and your contributions will be evident in the changelog.A feature you’ve developed will directly contribute to a customer's success.If Viktor encounters issues at 3 AM, you'll be equipped to resolve them, having a comprehensive understanding of the system.Founders will write less code as you take over areas they previously managed.What We're Looking ForProficient coding skills. You are fully engaged in coding and take ownership of your work.

Join our dynamic team as a Middle Embedded Software Engineer at Sigma Software Group in Warsaw! We are looking for a passionate engineer who is eager to contribute to innovative projects in embedded systems development. You will work in a collaborative environment, leveraging your skills to create high-quality software solutions.

Join us at capital, a premier trading platform expanding globally. Our award-winning products, recognized for their advanced technology and exceptional client experience, set the standard in the industry. We are on the lookout for top-tier talent to join our dynamic engineering team.We are currently enhancing our Backend Team and seeking passionate Java Software Engineers with a keen interest in trading! Our engineering team is crucial in maintaining the performance, security, and reliability of our products. With a focus on delivering superior performance, ensuring compliance, and protecting client data, your contributions will significantly enhance the trading experience for our clients.We value engineers who not only write exceptional code but also embody our core values. We are searching for individuals who are ready to move quickly, willing to innovate and develop, who understand the importance of listening, respecting, and supporting, strive to exceed client expectations, and take full ownership for achieving real impact.

Join a Transformative CompanyAt Palantir, we are dedicated to developing innovative software that tackles some of the world's most pressing challenges. We collaborate with major institutions globally to revolutionize their data and technology utilization. Our solutions have been instrumental in preventing terrorist activities, advancing medical research, enhancing financial market strategies, and much more. If you're passionate about impactful projects, we invite you to become part of our team.Your RoleAs a Forward Deployed Software Engineer (FDSE), you will engage directly with clients to swiftly assess their most critical issues and devise data-driven solutions. Our clients depend on Palantir’s platforms for essential operations, often beginning with probing questions like “What causes our flight delays?” or “How can we improve money laundering detection?” In this role, you will leverage your analytical prowess, creativity, and technical expertise to empower organizations to harness their data for significant global impact. You will gain unparalleled insights and contribute to vital industries and institutions.Your responsibilities will parallel those of a startup CTO, working in agile teams with minimal oversight while taking full ownership of high-stakes projects. Your daily tasks may include architectural discussions with engineers, managing vast datasets, developing custom web applications, liaising with client executives, or strategizing with your team.Whether your aspirations lie in entrepreneurship or engineering leadership, Palantir offers an unparalleled environment — with exceptional colleagues — to cultivate your skills. You will learn to dissect complex problems, evaluate the implications of solutions, explore new technologies and programming languages, and even contribute to their development. You will operate independently while being supported by a community that encourages your growth and challenges you to excel.Our Core Values• Impact: Engage in significant and challenging projects that drive positive change.• Ownership: See projects through from conception to completion, overcoming any challenges along the way.• Collaboration: Work closely with diverse teams, including fellow FDSEs, product teams, and Deployment Strategists, as well as with clients on-site to address their needs.• Trust: We empower each other to manage our time and priorities effectively, allowing for independent thought and decision-making.• Growth: We motivate ourselves and colleagues to pursue new challenges and opportunities for personal and professional development.

Teltonika Networks is looking for a Junior Backend Software Engineer to join the team in Warsaw, Masovian Voivodeship, Poland. The company develops networking equipment for industrial and enterprise use, including routers, switches, gateways, and modems. Teltonika’s technology supports clients in sectors such as Industry 4.0, Smart City, and Green Energy. For more details on their products, visit Teltonika Products. Role overview This position involves hands-on work with embedded Linux software and API frameworks for IoT devices. The team is international and values collaboration to solve technical challenges. The role is well suited to early-career engineers who want to deepen their technical skills while working on real-world projects. Main responsibilities Design, implement, and maintain embedded Linux software for IoT hardware. Develop and support an API framework used by multiple R&D teams. Analyze and integrate new technologies into existing systems. Collaborate with colleagues from different countries to address complex problems. Requirements At least 1 year of experience programming in C. Minimum 1 year working with APIs. Proficient in Shell and Python scripting. Familiarity with Git version control. Experience working with Linux-based systems. Strong English communication skills, both written and spoken. Preferred qualifications Technical degree in a relevant field. Understanding of computer networking concepts. Experience with Lua programming. Knowledge of OpenWrt. Benefits Opportunities for growth within a growing company. Work on ambitious projects focused on industrial networking devices. Private medical care (Medicover Premium) and Multisport card. Hybrid work model with flexible arrangements. Extra day off for your birthday. Team-building activities to support collaboration.

About Aurora Solar Aurora Solar builds software that helps solar professionals design and install solar systems for homes and businesses. The platform combines data and technology to simplify the solar adoption process. Aurora’s tools have supported the design of millions of solar projects, making it easier for companies to sell, plan, and complete installations efficiently. The company has been named one of 'The Best Remote Companies to Work for in 2025' by BuiltIn.com and holds Certified Green Business (CGB) status from the city of San Francisco. Aurora Solar is committed to advancing the global shift toward solar energy. Team Overview The Install Ready Design team develops automation and compliance solutions for solar design. This group manages a platform that produces construction-ready plans for residential photovoltaic (PV) and storage systems, ensuring every design meets industry codes, standards, and manufacturer requirements. Team members work in a collaborative, respectful setting that values growth and encourages new ideas. Role Overview This hybrid Software Engineer role is based in Warsaw, Poland. The position focuses on building backend systems that support the next generation of solar installations. Engineers on this team address complex technical challenges and create reliable tools that shape how solar projects are designed and delivered. Key Responsibilities Develop and launch new features to boost platform performance and accuracy. Work with partners across the solar industry to streamline project workflows. Grow the capabilities of Aurora’s solar design platform. Help build new products that change how solar systems are designed and deployed. Take operational responsibility for team-owned services, including participating in an on-call rotation.

About Box:Box (NYSE:BOX) stands at the forefront of Intelligent Content Management, creating an environment where organizations can enhance collaboration, oversee the entire content lifecycle, safeguard vital information, and revolutionize business workflows using enterprise AI. Established in 2005, Box simplifies operations for prominent global enterprises such as JLL, Morgan Stanley, and Nationwide. Our headquarters are located in Redwood City, California, with a presence across the United States, Europe, and Asia.By joining Box, you will play a pivotal role in propelling our platform into the future. Content is the heartbeat of business operations, encompassing countless files and information exchanged among teams and departments daily—ranging from contracts and invoices to employee records and product specifications. Our mission is to infuse intelligence into content management, enabling clients to reshape workflows throughout their organizations. With the fusion of AI and enterprise content, this is an unprecedented opportunity to redefine collaborative work, and at Box, you will be at the forefront of this transformation.As an AI-first company, we expect you to adopt a growth-oriented mindset and explore innovative ways to harness AI for quicker, more informed decision-making that amplifies your impact at Box.Why We Need You:Numerous leading enterprises depend on Box for secure content storage, and we are unlocking the potential of their data by developing essential capabilities such as Box Relay. We are enhancing Relay with new features and supporting products.Our Relay Experience team in Poland is dedicated to delighting users by automating routine tasks, thereby saving time and ensuring consistent results. As our team expands and embarks on new product development, we seek an experienced engineer capable of owning significant system components and working independently. In this capacity, your contributions will impact millions of users who utilize Relay to accomplish their daily tasks.Your Responsibilities:Draft detailed specifications and documentation for software projects.Plan and execute effectively...

As a Lead Senior Software Engineer on the API team at Nearmap, you will take charge of guiding developers in the design, implementation, and delivery of innovative software solutions that significantly contribute to Nearmap's business goals and effectively address real-world challenges faced by our users. You will collaborate closely with the Product team to analyze, design, and enhance software solutions while elevating the development team's skills by promoting best practices and providing coaching to help individuals reach their full potential.Your work will directly impact a platform that manages petabytes of aerial imagery, drives sophisticated AI models, and delivers real-time geospatial insights to clients globally. From data ingestion and processing to intelligent API delivery and user-facing applications, our systems redefine performance, scalability, and innovation.This role presents a unique opportunity to influence quality practices across a comprehensive platform that encompasses high-resolution imagery, AI-driven insights, and scalable data delivery systems while helping to establish API projects within our new engineering hub in Warsaw. You will play a vital role in ensuring the dependability of systems that are transforming how industries make pivotal decisions at scale.At Nearmap, we seek engineers who are adaptable, exhibit leadership qualities, and are eager to tackle new challenges across the full stack as we strive to advance technology.

Join our innovative team at Aurora Solar as a Senior Software Engineer. In this role, you will help drive our mission to revolutionize solar energy solutions on a global scale. Your expertise will contribute to developing cutting-edge software that empowers solar professionals and enhances efficiency in solar project management.As a key player in our engineering team, you will work collaboratively with cross-functional teams to design, implement, and optimize software solutions that meet the needs of our international clientele. Your contributions will directly impact the future of renewable energy technology.

Join our dynamic team at Inetum2 as a Senior Fullstack Software Engineer, where you'll be at the forefront of developing innovative software solutions. In this role, you will leverage your expertise in both frontend and backend technologies to build scalable applications that enhance user experience. Collaborate with cross-functional teams to design, develop, and maintain high-quality software products.

Join our dynamic team at inetum2 as a Senior Software Quality Assurance Engineer, where you will play a crucial role in ensuring the quality and performance of our software solutions. You will be responsible for developing and executing test plans, identifying bugs, and working collaboratively with developers to enhance product quality.

Join our dynamic team at Box, Inc. as a Senior Software Engineer specializing in Home Web applications. In this role, you will leverage your extensive experience in software development to design and implement innovative solutions that enhance user experiences. Collaborate closely with cross-functional teams to deliver high-quality software solutions that align with our strategic goals.

Join the forefront of digital privacy with Nordsec!Are you a passionate and innovative software engineer ready to tackle complex challenges? Become a pivotal part of our dynamic team responsible for developing cutting-edge technologies such as Threat Protection Pro, the NordLynx protocol, and the world’s fastest VPN. Your contributions will empower millions of users to reclaim control over their online security, privacy, and data.

Role Overview Sigma Software Group is seeking a Lead Principal Software Engineer with a focus on Interior Design software. This position is based in Warsaw. The role centers on leading software development efforts that improve both the user experience and the core functionality of interior design applications. What You Will Do Guide and oversee software projects aimed at enhancing interior design tools. Collaborate with cross-functional teams to define technical requirements and deliver high-quality solutions. Ensure development meets rigorous quality standards throughout the project lifecycle. Mentor junior engineers and encourage adoption of best practices within the team. Shape the technological direction of projects, influencing how designers interact with and benefit from Sigma Software Group’s products. Impact Your leadership will help designers create visually impressive and efficient spaces. The solutions developed will support both ease of use and strong functionality for end users.

Location: Poland About Us: RTB House is an innovative global leader in marketing technology, dedicated to developing cutting-edge solutions for esteemed brands and agencies around the globe. Our unique ad-buying engine, driven entirely by advanced Deep Learning algorithms, empowers advertisers to achieve remarkable results and meet their objectives across all stages of the marketing funnel. Since our inception in 2012, we have expanded our operations to over 90 markets while maintaining a steadfast commitment to first-party advertising and continuous innovation. RTB House provides comprehensive, Deep Learning-powered AdTech products and solutions designed to enhance conversion rates, drive customer acquisition, foster engagement, and stimulate long-term demand for a diverse clientele worldwide. Your Role: We are seeking a Senior Software Engineer to join our team in designing, developing, and fine-tuning high-performance backend systems that facilitate real-time bidding (RTB) and machine learning at scale. You will be instrumental in creating software that manages billions of daily transactions, ensuring adherence to stringent latency and reliability requirements within a distributed, low-latency environment.

Important: This role requires relocation to our Milan office.About SatispaySatispay is on a mission to transform everyday payments, making them simple, equitable, and accessible for all. Our vision extends beyond payments; we aspire to redefine the future of finance. Join our movement that empowers millions, driven by a collective purpose to tackle significant challenges. We're just getting started, and we invite you to be part of this journey.We thrive on innovation, embrace bold thinking, and foster a culture of trust that encourages challenging the norm while continuously learning and evolving. If you seek more than just a job and wish to create a meaningful impact alongside a talented team, you are in the right place.Your RoleAs a Staff Software Engineer within the Consumer Wealth team, you will take on a pivotal role in shaping the financial futures of our users as they grow and manage their savings and investments. You will serve as the technical authority in the Consumer domain, spearheading initiatives that empower millions to achieve their financial well-being through our innovative savings products, invested money boxes, and investment solutions.Here’s a glimpse into your daily responsibilities:Strategic Technical Direction: Formulate the technical strategy for the Consumer Wealth domain. You will architect complex subsystems that facilitate savings and investment features, ensuring cross-product synergy while leading initiatives that impact multiple teams.Architectural Advancement: Design and construct scalable, high-quality systems that address intricate financial engineering challenges, including the management and simplification of our most complex back-end systems for savings and wealth management.Technical Leadership: Cultivate relationships across the organization to foster technical alignment, represent our technical vision both internally and externally, and remain at the forefront of emerging trends in FinTech and wealth management.Talent Development: Mentor the next generation of technical leaders and promote a culture of excellence in engineering and continuous improvement.Driving Impact: Contribute significantly to user wealth growth and help them achieve their financial aspirations through your work on the Consumer Wealth back-end infrastructure, directly advancing Satispay's mission.Expect a dynamic environment filled with challenges, collaboration, and the freedom to bring your innovative ideas to fruition. Our technology stack includes a variety of cutting-edge tools and platforms.

At Veeam Software, we pride ourselves on being the experts in Data and AI Trust, dedicated to empowering organizations to fully understand, secure, and ensure the resilience of their data and AI systems. Recognized as the market leader in data resilience and security posture management, we are perfectly positioned to navigate the convergence of identity, data, security, and AI risk. With our headquarters in Seattle and a presence in over 30 countries, we protect the operations of more than 550,000 customers globally, who rely on us to keep their businesses running smoothly. Embark on this exciting journey with us as we continue to innovate, learn, and create significant impacts for some of the world’s largest brands.About the RoleJoin us as we lead the charge in Kubernetes Backup and Disaster Recovery. Our Veeam Kasten platform is specifically designed for Kubernetes data management, providing enterprise operations teams with a seamless, scalable, and secure solution for backup, restore, disaster recovery, and application mobility. With our commitment to continuous optimization and enhancement, we are integrating our tools with SaaS services and expanding support for virtual machines hosted in Kubernetes, ensuring that we meet the evolving needs of our customers.