Mid-Level Backend Engineer | PHP | Systems Team

Our MissionAt SentinelOne, our mission is clear: to empower those who safeguard our future. In an era where AI is transforming how businesses operate and innovate, the imperative to secure these advancements is more crucial than ever. Joining SentinelOne means contributing to the protection of global enterprises, critical infrastructure, and the innovative technologies of tomorrow. If you thrive on meaningful challenges and aspire to make a tangible global impact, you will find your purpose here.About UsSentinelOne stands at the forefront of AI-driven security solutions, redefining the cybersecurity landscape. Our AI-native platform integrates protection across endpoint, cloud, identity, data, and AI systems, enabling autonomous detection and rapid response. By leveraging real-time analytics and intelligent automation, we eliminate unnecessary noise, streamline complexities, and empower security teams to focus on what truly matters.Our team comprises passionate builders, problem-solvers, and innovators dedicated to shaping the future of security. If you're excited about tackling challenging problems alongside a talented and mission-driven team, we invite you to help us create a safer tomorrow for all.What We Are Looking ForWe seek individuals who are insatiably curious and committed to ongoing learning. As AI continues to transform our operations, we equip every team member, regardless of their role or level, with the knowledge to leverage AI tools and concepts. Those who excel here actively pursue innovative solutions, thoughtfully experiment, and apply their insights to achieve better, faster, and smarter outcomes.As a Windows Low Level Engineer for Endpoint Security, you will be instrumental in designing and developing cutting-edge security features for SentinelOne’s Windows endpoint protection platform, functioning in both user-mode and kernel-mode environments. You will construct and optimize essential components such as anti-tampering measures, network sensors, and agent infrastructure, while tackling complex performance and stability issues at scale. Your role will involve researching Windows internals and diagnosing deep system challenges, collaborating with distributed engineering teams to deliver impactful security solutions that safeguard millions of devices globally.

Role Overview Nord Security is looking for a Low-Level Engineer to join the NordVPN team in Warsaw. This role focuses on developing and improving VPN technology that protects users' privacy and security around the globe. What You Will Do Collaborate with a skilled team to design, build, and refine VPN solutions Work on projects that strengthen digital security for millions of users Contribute to features and enhancements that improve online privacy Location This position is based in Warsaw.

Join the forefront of digital privacy with the world’s leading VPN!Are you a passionate problem-solver who thrives on innovation? Become a vital member of the team that developed Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—empowering users with enhanced privacy, security, and control over their online presence.Your contribution? Enable millions of users to regain control of their online security, privacy, and data.The Low-Level Server Side Team is at the helm of delivering VPN server software that serves millions of users worldwide.

Join Our Innovative Team at NordLayer!At NordLayer, we are revolutionizing cybersecurity, ensuring that businesses can scale securely. Our toggle-ready platform empowers modern teams to operate efficiently without the burden of security concerns. Trusted by over 11,000 companies across the globe, NordLayer seamlessly integrates with any tech stack to provide comprehensive user protection worldwide.Your Role: Play a vital role in safeguarding businesses and advancing network security solutions for the future.Key Responsibilities:Design, develop, and maintain automated end-to-end testing frameworks for both API and UI.Collaborate with the Test Automation team to enhance a shared testing library.Identify, document, and work with the engineering team to troubleshoot software defects.Partner closely with product, engineering, and QA teams to ensure top-notch product quality.

Role overview NordVPN is looking for a Low-Level Engineer in Warsaw to help build and maintain core technologies. This role focuses on improving software solutions and supporting the security and performance of NordVPN products. What you will do Work closely with other engineers to develop and maintain foundational software components Contribute to the security and efficiency of NordVPN’s products Help enhance existing solutions and support ongoing product improvements

About BoxBox (NYSE:BOX) is at the forefront of Intelligent Content Management, empowering businesses to enhance collaboration, oversee the complete content lifecycle, secure essential information, and revolutionize workflows through enterprise AI. Founded in 2005, Box simplifies operations for renowned global organizations like AstraZeneca, JLL, Morgan Stanley, and Nationwide. Our headquarters is located in Redwood City, CA, with additional offices spanning the United States, Europe, and Asia.Joining Box means you will play a pivotal role in advancing our platform. Content is the backbone of everyday operations, encompassing contracts, invoices, employee records, financial documents, product specifications, marketing materials, and more. Our mission is to infuse intelligence into content management and empower our clients to revolutionize workflows throughout their organizations. With the synergy of AI and enterprise content, there is a remarkable opportunity to reshape collaborative efforts, and at Box, you will be at the forefront of this evolution.Why Your Expertise is EssentialAt Box, we are redefining the collaborative landscape. Security is fundamental to our vision. We are expanding our Product & Platform Security Engineering team in Poland to work closely with our Assurance & Architecture Engineering teams based in the US. As a Staff Security Engineer, you will collaborate with a high-impact engineering team in Warsaw, focusing on scaling security measures and integrating AI into our security protocols across our platform and product stack.This position offers the chance to influence strategic direction and deliver tangible outcomes that safeguard millions of users.Your ResponsibilitiesContribute to a strategic roadmap that enhances Box’s security capabilities across various platforms and products.Develop and iterate on minimum viable products (MVPs) for security automation, including supply chain security, SDLC controls, and developer-centric guardrails.Collaborate with the Assurance & Architecture Team and cross-functional teams (Product, Platform, Cloud, SRE, Developer Experience) to integrate security into workflows and tools.Lead initiatives focused on automation and innovative security techniques.

Join NordVPN, a leading cybersecurity company, as a Low-Level Server-Side Engineer. In this dynamic role, you will contribute to enhancing our server infrastructure and optimizing performance, ensuring our users enjoy a seamless and secure experience.

Role Overview netcompany1 is hiring a Junior Operations Engineer to support both Linux and Windows systems in Warsaw. This entry-level position suits those ready to begin a career in IT operations. What You Will Do Assist with managing and maintaining Linux and Windows environments Work alongside senior engineers to troubleshoot technical issues Help implement solutions that improve system performance and reliability Contribute to ongoing projects within the operations team Who We’re Looking For Entry-level candidates interested in IT operations Willingness to learn and collaborate with experienced engineers Interest in both Linux and Windows platforms

Join Our Team at NordLayer!At NordLayer, we are on a mission to deliver scalable cybersecurity solutions tailored for modern businesses.Our innovative platform empowers teams to operate efficiently without the burden of security concerns. Trusted by over 11,000 global companies, NordLayer seamlessly integrates with any technology stack to safeguard users across borders.Your Role: As a DevOps Engineer, you will play a crucial role in enhancing and automating our infrastructure and CI/CD processes. Collaborating with Senior Engineers and cross-functional teams, you will implement best practices in DevOps, support robust and scalable cloud solutions, and ensure smooth software delivery. This is a fantastic opportunity for professional growth in a dynamic environment while contributing to our infrastructure automation initiatives.Key Responsibilities:Implement and maintain Infrastructure as Code (IaC) using Terraform.Develop, manage, and optimize Terraform modules.Oversee and enhance AWS Cloud infrastructure, ensuring performance, scalability, and availability.Assist in establishing and maintaining monitoring and logging systems (e.g., ELK, Grafana, Thruk).Provide technical support for infrastructure, CI/CD pipelines, and deployment processes.Troubleshoot and resolve infrastructure-related issues to ensure seamless operations.Document and uphold DevOps workflows, processes, and system configurations.

At NordPass, we are dedicated to making password security effortless.We believe that logins should be both safer and simpler. Join the innovative team behind NordPass— a leading password manager relied upon by over 7 million users and more than 10,000 global enterprises to protect their credentials, cards, and sensitive information.Your impact? You will be instrumental in helping millions secure their digital lives by developing smarter and safer login solutions.Main ResponsibilitiesDesign, develop, and take ownership of security-focused backend services (including breach detection, email masking, and related tools) with a commitment to high quality, performance, and accuracy.Utilize AI-assisted workflows on a daily basis (code generation, test scaffolding, debugging, performance optimization) while continuously evaluating new tools to enhance the team's productivity.Contribute to the establishment of shared AI practices within the squad: reviewing patterns, creating prompt libraries, and setting guardrails to ensure AI-generated code meets the same standards as hand-written code.Engage in system design and architectural decision-making, advocating for solutions that are secure, scalable, and maintainable.Collaborate across functions with Frontend, Android, iOS, and Backend engineers to deliver comprehensive features across all platforms.Assume full responsibility for your creations, from design to production, ensuring uptime, reliability, and code excellence.

About the Role Nord Security is looking for a Mid to Senior Security Engineer to join the WebSec Team in Warsaw. This position focuses on strengthening security protocols and building solutions that protect web applications. What You Will Do Identify vulnerabilities in web applications and services Develop and implement security measures to protect users Work closely with other security professionals to improve overall security posture Contribute to the ongoing improvement of security processes and tools Who You’ll Work With Collaborate with a skilled team of security engineers and specialists, sharing knowledge and approaches to keep Nord Security’s web platforms safe.

Securitas seeks Security Staff for a retail location in Warsaw (Ochota). The position centers on safeguarding the premises, customers, and employees during extended shifts. What you will do Monitor activities across the retail site to identify and address potential issues Respond promptly to incidents as they occur Help maintain a safe, welcoming space for both customers and staff Provide professional customer service in daily interactions Work location and schedule Based in Warsaw (Ochota) 12-hour shifts

We are currently seeking candidates for the position of:Security Officer / Qualified Security Staff with English ProficiencyLocation: Warsaw, WolaYour future responsibilities include:Ensuring safety within a modern office environment.Operating monitoring and access control systems (CCTV, SKD).Patrolling the premises.Collaborating with clients and team members.Responding to emergency situations.We offer:Stable employment based on a labor contract.Salary: 7,800 PLN gross.Work in a shift system (12h).Funding for a sports card.Private medical care at an attractive price.Discounts on studies at WSB Merito University.Free meals at the workplace.Work in an international environment.Real opportunities for advancement within the company.

Join NordLayer and be part of a cybersecurity revolution!We are creating a scalable cybersecurity platform tailored for modern teams, eliminating security concerns while enhancing productivity. With trust from over 11,000 global companies, NordLayer seamlessly integrates into any tech stack, offering robust protection across borders.Your Role: Play a crucial part in empowering businesses with cutting-edge network security solutions.Key ResponsibilitiesEnhance our codebase by crafting clean, high-quality TypeScript code, backed by rigorous testing.Provide mentorship and technical guidance to frontend developers through insightful code reviews and implementation strategies.Collaborate with backend engineers to define API contracts and ensure smooth integration between frontend and backend services.Work alongside product managers and designers to transform product requirements and UX designs into viable technical solutions.Uphold high engineering standards by promoting best practices in code quality, testing, and maintainability.Assist the team in delivering features within a Scrum framework by effectively breaking down tasks, identifying risks early, and contributing to accurate estimations.Essential Qualifications5+ years of experience in developing and maintaining modern frontend applications using React and TypeScript.Proven experience in designing frontend architectures and establishing scalable components and state management patterns.Strong knowledge of frontend performance optimization and web application best practices.Experience working with REST APIs and collaborating effectively with backend teams.Familiarity with frontend testing frameworks such as Jest, Testing Library, Cypress, or Playwright.Experience leading technical discussions within a distributed team environment.Bonus QualificationsHands-on experience in building or contributing to open-source projects.

Join our dynamic team at Ramboll as an Electrical Engineer specializing in Low Voltage Installations Design. You will have the opportunity to work on innovative projects and contribute to the development of sustainable solutions in electrical engineering.Your responsibilities will include designing low voltage installations, collaborating with multidisciplinary teams, and ensuring compliance with industry standards.

Join our dedicated team at Securitas as a Mobile Security Staff member. In this role, you will play a vital part in ensuring the safety and security of various locations in Warsaw. Your responsibilities will include patrolling assigned areas, responding to incidents, and providing exceptional service to clients.

Join the forefront of cybersecurity innovation!At Nord Security, we are not just developing the world's most advanced VPN, but a suite of tools designed to empower individuals with privacy, security, and control over their online presence.Your mission: To enable millions to reclaim their online security, privacy, and data integrity.Key Responsibilities:Establish and uphold a long-term technical vision for data management platforms within the Threat Intelligence sector, ensuring architectural integrity and progressive system enhancements.Guide the architecture of extensive distributed systems, encompassing data pipelines, microservices, and storage solutions while prioritizing reliability, scalability, and security.Execute thorough architectural, design, and code evaluations, maintaining high engineering standards and robust data quality protocols.Collaborate with stakeholders across product, engineering, and leadership to ensure alignment between architectural strategies and organizational goals.Provide mentorship and technical guidance to fellow engineers, fostering their growth and advocating for best practices.Proactively identify and address technical debt, performance challenges, and reliability issues throughout the platform.Enhance engineering workflows by promoting effective testing methodologies, CI/CD practices, meticulous documentation, and operational excellence in cloud environments.

Capital, a global trading platform headquartered in Warsaw, focuses on technology-driven solutions and a user-centered experience. As the company expands, it seeks professionals who can help reinforce its technical foundation. Role overview The Network Security Engineer takes on a central role in safeguarding Capital’s infrastructure and network. This position involves building, maintaining, and improving security systems that support the safety and reliability of the platform for users around the world. Main responsibilities Develop and maintain monitoring systems for network and infrastructure Automate security processes to boost operational efficiency Support ongoing improvements to the company’s security framework What Capital offers Work with recognized products and advanced technology Join a globally respected team Opportunities to make a meaningful impact on security operations

Are you a skilled Operations Engineer with a passion for both Linux and Windows environments? At netcompany1, we are seeking an innovative professional to join our dynamic team in Warsaw. You will play a crucial role in maintaining and optimizing our operational systems while collaborating with cross-functional teams to enhance our infrastructure.