Mid-Senior Backend Engineer (Go) at Nordsec | Krakow

N-iX is seeking a highly skilled Senior Python Engineer to join a dynamic product team of approximately 8 engineers dedicated to creating a sophisticated, high-impact software platform. In this role, you will engage in full-stack development, constructing scalable backend services and user-friendly frontend experiences. You will leverage AI-powered developme…

Join our dynamic team as a Senior DevOps Engineer and play a key role in shaping the future of cloud security!About Us:At nix, we collaborate closely with our client’s team to develop a cutting-edge cloud-based security platform. As a backend engineer with robust infrastructure expertise, you will contribute to innovative solutions that empower security teams to conduct forensic investigations, execute custom scripts at scale, and swiftly respond to cyber threats affecting millions of endpoints.This next-generation platform facilitates the automated collection of forensic evidence, customizable forensic profiles, and efficient incident response workflows, all through a unified console integrated with EDR data.Your focus will be on modernizing our platform through infrastructure migrations to enhance scalability.

N-iX is on the lookout for a Senior Python Engineer with proficiency in Go and Java to become a vital part of our innovative team. In collaboration with our client's team, you will contribute to the development of a state-of-the-art cloud-based security platform as a backend engineer with a robust infrastructure background. This team is dedicated to creating solutions that empower security teams to conduct forensic investigations, deploy custom scripts on a large scale, and react swiftly to cyber threats affecting millions of endpoints. The platform facilitates automated collection of forensic evidence, customizable forensic profiles, and efficient incident response workflows, all integrated within a single console alongside EDR data. Your primary focus will be on enhancing backend systems and infrastructure to enable the team to deliver high-quality solutions more efficiently.

We are seeking a Senior Java Engineer with a strong background in Python and Golang to join our dynamic team.About Us:Our client is at the forefront of cybersecurity innovation with their XDR platform, which autonomously prevents, detects, and responds to threats in real-time. The Singularity XDR leverages patented AI models, providing organizations with comprehensive visibility and control over their networks to mitigate every stage of the threat lifecycle.We pride ourselves on a values-driven culture where every team member is recognized, results are celebrated, and professional relationships flourish. Our core values—trust, accountability, relentlessness, and ingenuity—guide our collaborative global team. If you're passionate about innovative problem-solving, we'd love to discuss how you can contribute to our success!About the Team & Role:You will be part of a team dedicated to ensuring the security of millions of devices worldwide across various operating systems (Windows, Linux, macOS) while processing billions of security events daily.We are developing services such as gateways, caching solutions, and threat data ingestion systems that facilitate two-way interactions between client's agents on secured devices and our cloud-based management console.Our console empowers thousands of users in IT security teams to manage security software deployed on endpoints, enabling them to investigate threats, receive notifications, and create blocklists, exclusions, policies, and more.Joining our core team means you'll have a significant influence on how we protect our customers' environments (including Fortune 10 companies and numerous Global 2000 entities) and enhance their security postures.

Join Groupon, a dynamic marketplace where customers uncover fresh experiences and services daily while empowering local businesses to thrive. With over a million merchant partners globally, we connect more than 16 million customers to exceptional deals across diverse categories. In a landscape often dominated by e-commerce giants, Groupon distinguishes itself as a platform uniquely dedicated to fostering the success of local businesses on a performance basis.We are on an ambitious journey to revolutionize our business through an unwavering commitment to results. Despite our expansive global team, we cultivate a culture that ignites innovation, embraces risk-taking, and celebrates achievements. Here, your impact can be immediate, thanks to our scale and the speed of our transformation. We embody the best of both worlds: large enough to offer resources and scale, yet small enough for individual contributions to make a significant difference.About the RoleAs a Senior Go-To-Market Engineer at Groupon, you will be the architect behind our revenue engine—designing and building automated systems that facilitate the discovery, enrichment, qualification, and engagement of merchants across international markets. This high-impact, individual contributor role will see you delivering work that directly influences pipeline and revenue. You’ll work collaboratively across Sales, Marketing, and Data teams while maintaining deep ownership of Groupon's Go-To-Market technical infrastructure. Your contributions will enable our teams to operate efficiently at scale across multiple markets, ensuring operational effectiveness and data integrity.ResponsibilitiesSystem Design and AutomationDesign, develop, and optimize robust automated workflows within the Go-To-Market tech stack utilizing Clay, Kubaru, Cloudingo, and Salesforce.Create scalable agentic workflows in Clay to assess and enrich business and contact data efficiently.Establish integrations linking Clay, Salesforce, internal merchant assessment tools, and marketing automation platforms.Lead Management and Data OperationsDevelop real-time lead scoring engines to prioritize high-value opportunities.Design and maintain dynamic lead routing systems to maximize conversion potential.

Join Saily, where we simplify staying connected while traveling — no roaming fees, no plastic SIM cards, just high-speed, secure mobile data accessible in over 200 destinations. With millions of satisfied customers and countless travelers using Saily at any time, we are dedicated to enhancing their experience.At Saily, we cultivate an AI-driven Product Engineering culture that empowers our engineers to:Own the product development lifecycle from concept to deployment.Leverage AI Agents to automate repetitive coding tasks, maximizing their productivity.Continuously identify and implement improvements within our processes.Embrace curiosity and encourage knowledge sharing.Focus on delivering a seamless, connected experience for our customers.We prioritize growth, contribution, and impactful work over comfort and hierarchy. At Saily, we provide our talented team members with the autonomy and resources they need to excel.Key ResponsibilitiesEnhance our product by developing and maintaining innovative features.Create functionalities that support multi-dimensional personalization, A/B testing, and data analytics.Maintain a robust and high-quality codebase.Continuously seek opportunities to improve code quality and system performance.Provide mentorship on development best practices and offer technical guidance to peers.Contribute to the overall vision and long-term goals of the team.Conduct research and development as needed.Collaborate within a cross-functional team to ensure clear communication among all members.Work alongside engineering, product, and design experts from other teams.Note: This position requires in-office attendance three times a week.

Join Our Innovative Team!At Xebia, we are dedicated to nurturing expertise and driving innovation. For nearly 20 years, we have crafted advanced digital solutions for a diverse array of clients across the globe, including renowned brands like UPS, McLaren, Aviva, and Deloitte.Our passion for cloud-based solutions is unparalleled. We proudly partner with leading cloud providers such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). In fact, we were the first AWS Premier Consulting Partner in Poland!Previously known as PGS Software, we became part of the Xebia Group in 2021, a network of companies united by the ambition to make a significant impact in the tech industry.At Xebia, we embody innovation, foster a talented team, and strive for technological excellence. Our commitment to authority in our field ensures that we frequently engage in global, cutting-edge projects.We invite you to explore our unique culture, characterized by meticulous attention to detail, a strong dedication to knowledge, and an unwavering belief in the potential of our team members. We encourage you to visit us to witness the difference firsthand!Now that you know about us, we are eager to learn about you!Your Role:Developing Snap packages,Utilizing LXD,Managing dependencies in a large monorepo ecosystem,Working with Go modules, understanding project structures, go.mod, and various dependency types (required, indirect, extended),Conducting advanced semantic versioning (semver), which includes version bumping, tag management, module updates, and synchronizing versions across multiple repositories,Facilitating the migration and updating of dependencies across different repositories in accordance with the release process.

Join the forefront of online security technology with the world’s leading VPN provider!Are you a passionate problem-solver eager to make impactful contributions? Become a key player in the team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—tools designed to restore privacy, security, and user control.Your role? Empower millions to reclaim their online security, privacy, and data integrity.As a Senior Backend Engineer on our Notification Center Team, you’ll be vital in designing and maintaining the microservices that facilitate seamless in-app notification delivery. We take pride in being the backbone of numerous features that depend on these notifications for smooth functionality. Our collaborative spirit drives us to work closely with other teams at Nord to pave the way for a scalable future.Ready to tackle the challenges of scalability, code quality, and service stability? Join our team of skilled engineers dedicated to technical excellence and help shape the future of NordVPN and its associated products!

Join our innovative team at dev2 as a Senior Software Engineer specializing in Python. In this pivotal role, you will be responsible for designing, developing, and maintaining robust software solutions that drive our projects forward. Your expertise will guide the team in best practices and efficient coding methodologies, ensuring high-quality deliverables.You will collaborate with cross-functional teams to integrate new features, troubleshoot issues, and enhance system performance. If you are passionate about software development and eager to take on challenging projects, we want to hear from you!

Role overview SmartRecruiters is seeking a Senior Software Engineer with strong Python skills to join the team in Poland. This role focuses on building and enhancing scalable software that supports the company’s product suite. Senior engineers at SmartRecruiters play a key part in shaping technical decisions and work closely with colleagues from various teams. What you will do Design and implement software solutions using Python Work with product managers, designers, and engineers to deliver new features Promote development best practices and contribute to architectural choices Mentor junior engineers and help them grow technically Requirements Experience building scalable applications with Python Comfort working in a collaborative setting that can move quickly Interest in solving practical problems with technology Ability to share knowledge and support less experienced team members

Are you passionate about creating powerful systems that enhance financial independence? Join DolarApp, a visionary startup dedicated to transforming access to dollar-based financial services throughout Latin America. As a Senior Python Engineer, you will architect, develop, and sustain scalable, secure, and high-performing backend systems that fuel our groundbreaking products. Collaborate with a skilled team to devise solutions that promote financial inclusion and revolutionize how individuals manage their finances. If you're eager to tackle intricate challenges and contribute significantly to a rapidly expanding company, we want to hear from you!What You'll Be DoingYou will be instrumental in developing the foundational infrastructure that supports our operations, including customer support bots and fincrime AI agents that will transform fintech operations.You will adopt a pragmatic approach to crafting our business logic, prioritizing clean code and maintainability, with a focus on rapid development through Test-Driven Development (TDD), Domain-Driven Design (DDD), and continuous integration and delivery.

Client Overview:We are partnering with a leading SaaS company at the forefront of technology, specializing in innovative solutions for the detection and management of risks that could influence clinical trial outcomes. Our client’s unique algorithms analyze clinical and operational data in real-time, enabling the identification of outliers and anomalies effectively.Role Overview:Join a vibrant engineering team of over 100 professionals dedicated to advancing data-driven statistics, machine learning, and AI software solutions. As a Senior Python Engineer, you will be instrumental in integrating AI-driven development practices into our dynamic workflow. Collaborating with a talented cohort of Python developers, you will address significant engineering challenges while utilizing a tech stack that includes Python, FastAPI, Kubernetes, Docker, Flask, Pyramid, Git, MySQL, MongoDB, Azure Cosmos DB, Celery, and Temporal.

Join the Vanguard of Online Privacy!Are you a passionate problem-solver with a knack for innovation? Become a part of the team that brought you Threat Protection Pro, the NordLynx protocol, and the world’s fastest VPN, empowering users with privacy, security, and control over their digital landscape.Your Contribution: Enable millions of users to reclaim their online security, privacy, and data.Join our Notification Center Team and help shape the future of in-app notifications!As a Senior Backend Engineer, you will be instrumental in developing and maintaining the crucial microservices that ensure seamless in-app notification delivery. Our team is the backbone supporting a wide array of features across various teams that rely on efficient notification systems to operate. We are dedicated to collaborating with different Nord teams to pave the way for our scalable future.Are you prepared to tackle challenges related to scalability, cost efficiency, quality code, and maintenance? Help maintain a stable and functional service that acts as an essential component behind many features of NordVPN, NordPass, and NordLayer. Join our team of skilled engineers striving for technical excellence!

Who are we?We are Bee Talents, a premier IT recruitment agency dedicated to assisting global clients in assembling top-notch technical teams since 2015. We are excited to guide you through the recruitment process for Nomagic.At Nomagic, our mission is to empower robots to understand and interact with the real world. We are currently on the lookout for a Senior Software Engineer who is eager to tackle the intricate challenges of physical manipulation, striving to replicate the evolutionary advancements that have shaped human dexterity. Join our exceptional team and contribute your extensive software development and design expertise.About the role: Role: Senior Software Engineer (specializing in architecture or robotics!) Compensation: 25,000 - 32,000 PLN gross, under a Contract of Employment⏱ Flexible working hours: 160 hours (within Polish timezone) Work arrangement: Hybrid Office location: ul. Rakowiecka 36, Warszawa Language: English is essential for daily communication (Polish is a plus)

Join our team as a Backend Engineer and contribute to our innovative solutions at NordProtect. We are looking for talented individuals with a passion for technology and a strong background in backend development, specifically using Go. In this role, you will collaborate with cross-functional teams to design, implement, and maintain robust and scalable backend systems.

Join Valtech, a leading experience innovation company and trusted partner to the world’s most recognized brands. We pride ourselves on offering our team members unparalleled growth opportunities, a values-driven culture, international career prospects, and the chance to actively shape the future of digital experiences.The OpportunityAs a Senior Python Engineer at Valtech, you will immerse yourself in an environment that champions continuous learning, impactful work, and professional development. Your contributions will range from pioneering cutting-edge AI solutions to redefining customer experiences, ultimately transforming entire industries.

Join Saily, where we are revolutionizing mobile connectivity for travelers. Say goodbye to roaming fees and plastic SIM cards, and enjoy ultra-fast, secure mobile data across over 200 destinations. With millions of paying customers and hundreds of thousands of travelers engaging with Saily at any moment, we are dedicated to enhancing the travel experience.At Saily, we cultivate an AI-native Product Engineering culture. Here, every engineer is a builder, tasked with solving customer challenges from conception to deployment. Our AI agents handle repetitive coding tasks, empowering engineers to focus on impactful solutions. Every team member is encouraged to contribute ideas for improvement, ensuring that our focus remains on providing our customers with a seamless, connected journey.We prioritize growth over comfort, contributions over hierarchy, and impact over process. At Saily, we equip talented individuals with context, autonomy, and advanced AI tools to excel in their roles.

Join our innovative project aimed at transforming business processes through the power of artificial intelligence and cutting-edge technology. This initiative focuses on intelligent data management and facilitates automated decision-making, leveraging modern, high-performance solutions to ensure optimal efficiency, robust security, and seamless scalability.

Join SplitMetrics, a pioneering global software company that empowers mobile-first businesses with an innovative ecosystem of products and services designed to drive growth. Our offerings include:SplitMetrics Acquire: A powerful platform for automating and optimizing Apple Ads.SplitMetrics Agency: A comprehensive mobile marketing agency backed by industry experts.SplitMetrics Optimize: An award-winning A/B testing platform recognized as the ASO Tool of the Year.App Radar by SplitMetrics: An advanced ASO platform offering in-depth keyword and competitor analysis.Why Choose SplitMetrics? With nearly a decade of experience, we lead the mobile marketing industry with cutting-edge technologies.As an Apple Ads Partner, we were the first to develop a management platform for Apple Ads.Collaborate with top mobile brands globally, including Skyscanner, Glovo, Flo, Babbel, and Wooga.Our ecosystem supports over $1 billion in ad spend annually.Incorporated AI into our strategic initiatives since 2023.Enjoy a remote-first culture that fosters collaboration across 20+ countries.We are on the lookout for a talented Senior Backend Engineer (Python) to join our dynamic team.