Python Software Engineer - Telecommunications Solutions

Join the forefront of digital security with the world’s leading VPN provider!At Nordsec, we are seeking a passionate and innovative Staff Software Engineer to be a pivotal member of our Threat Protection Pro team. You will be instrumental in developing the NordLynx protocol and contributing to our mission of delivering the fastest VPN experience globally—empowering users to reclaim their online privacy, security, and control.Your contributions will significantly impact: Enabling millions to enhance their online security and safeguard their personal data.

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.

NordVPN, part of Nord Security, develops VPN services and privacy tools designed to keep users secure and in control. The Threat Intelligence team combines data science, malware research, and privacy expertise to monitor and analyze new online threats as they emerge. This Senior Threat Intelligence Researcher role is based in Warsaw. The position plays a key part in shaping NordVPN’s Threat Protection features, with a direct impact on the online safety and privacy of millions of users. What you will do Serve as the lead expert on Threat Intelligence topics, guiding research into areas such as phishing and online scams. Turn research findings into actionable strategies that strengthen the Threat Protection product. Collaborate with Marketing and PR to communicate cybersecurity trends through clear, data-driven stories. Publish concise, evidence-based updates on significant threats and safety advice across social media. Contribute to educational video content, including scriptwriting and occasional on-camera work. Work alongside Data Science and Engineering teams to advance machine learning applications in Threat Intelligence. Assess and introduce new tools, data sources, and workflows to boost team performance. Mentor junior researchers and support their professional development. Team and collaboration The Threat Intelligence team values a range of skills and close cooperation. Researchers collaborate to deliver actionable intelligence and help NordVPN protect user privacy and security.

About the Role Nord Security, the company behind NordVPN, is searching for a Senior Threat Intelligence Researcher in Warsaw. This role centers on advancing the security and privacy of millions of users through products like Threat Protection Pro and the NordLynx protocol. What You'll Do Lead research efforts to identify and analyze emerging threats to Nord Security products. Work closely with a multidisciplinary team that includes Data Science, Malware Research, Development, and Privacy specialists. Contribute to the development and improvement of threat intelligence feeds, heuristics, algorithms, and machine learning models. Share actionable insights with product, engineering, and public-facing teams to strengthen threat protection capabilities. Help shape the evolution of NordVPN’s Threat Protection features by setting high standards for research quality and collaboration. The Team The Threat Intelligence group brings together experts from several disciplines. The team focuses on delivering accurate, timely information about potential threats using a mix of data-driven approaches and technical expertise. Collaboration is key, team members combine their skills to protect user privacy and security at scale. Location This position is based in Warsaw.

Join the forefront of online security with the world's leading VPN provider.If you are an inquisitive problem-solver eager to innovate, become a part of the team spearheading Threat Protection Pro, the NordLynx protocol, and the fastest VPN available—empowering users with enhanced privacy, security, and control over their data.Your contribution? Enabling millions to reclaim their online security, privacy, and data.Our Threat Intelligence team is committed to delivering precise and timely insights regarding potential threats to our products. Our diverse team of experts spans various disciplines, including Data Science, Malware Research, Development, and Privacy, all working towards a unified objective through the application of data feeds, heuristics, algorithms, and machine learning.Key ResponsibilitiesDesign and implement solutions to complex problems while conducting research, debugging, and data analysis across various sources;Create scalable, reliable code and document your contributions and explorations;Research, develop, and deploy data science solutions to production;Develop custom machine learning metrics to monitor model performance;Analyze validation/testing outcomes, provide explanations, and refine model designs accordingly;Collaborate with team members to plan deliverables;Perform code reviews to ensure quality;Maintain open communication regarding project progress;Mentor colleagues and share knowledge within the team;Propose enhancements to existing solutions.Core QualificationsDemonstrated experience in data science and/or mathematical modeling;Strong understanding of statistical methods (e.g., Monte Carlo, hypothesis testing, bootstrap, Bayesian inference);Extensive knowledge and practical experience with machine learning algorithms: linear regression, random forest, gradient boosted trees, neural networks, k-means, etc.;Proficiency in Python and hands-on experience with the PyData stack (e.g., Pandas, NumPy, etc.);

Join our innovative Threat Intelligence team at Nordsec as a Senior Data Scientist. In this pivotal role, you will analyze complex data sets to enhance our cybersecurity measures and protect our clients from emerging threats. You will leverage advanced analytical techniques and machine learning algorithms to derive insights that inform strategic decisions.

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

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.

Join the forefront of online security technology!Are you a passionate problem-solver eager to make your mark? Become a vital part of our innovative team at Nordsec, creators of Threat Protection Pro, the NordLynx protocol, and the fastest VPN available today. Our cutting-edge tools empower individuals to reclaim their online privacy, enhance security, and maintain control over their personal data.Your contribution: Play a crucial role in helping millions of users regain their online security, privacy, and data integrity.

Join the forefront of digital security with Nord Security!As a part of our innovative team, you'll contribute to the development of cutting-edge tools like Threat Protection Pro and the NordLynx protocol, ensuring that millions regain control over their online privacy and security.Your Role: As a Senior Software Engineer, you will design and maintain services that enhance our Threat Intelligence capabilities.Main Responsibilities:Design, code, and maintain data curation and ingestion services for the Threat Intelligence team.Develop and implement architectural solutions for distributed computing pipelines and microservices.Participate actively in code reviews and knowledge sharing to uphold high technical standards.Create new services to ensure the availability of quality data feeds.Maintain coding standards and ensure your code is maintainable, readable, and secure.Encourage innovation and develop ideas that enhance our cybersecurity products.Provide technical leadership and mentorship to team members.

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 hyperexponential as an Associate Software EngineerAt hyperexponential, we are revolutionizing the insurance industry with our innovative AI-powered platform, which supports critical decision-making in a $7 trillion market. Our platform is designed to enhance how insurers evaluate risks and determine pricing, ensuring that pivotal choices—like the successful launch of rockets or the deployment of autonomous vehicles—are made with confidence.Traditionally, insurance relies on outdated methodologies for making billion-dollar decisions. We aim to change that by integrating data, artificial intelligence, and expert insights to streamline the process from submission to decision, enabling insurers to act swiftly and intelligently.Backed by prestigious investors such as a16z, Highland Europe, and Battery Ventures, we are on a global expansion trajectory. Our platform has gained the trust of nearly 50 of the world's largest insurers, experiencing zero churn and facilitating billions in premiums through our system.What began as a singular product has rapidly transformed into a robust, multi-product platform that enhances every aspect of pricing and underwriting. AI is central to our operations—whether it's developing the world's first domain-specific AI peer programmer for insurance or creating workflows that redefine industry standards.At hyperexponential, it’s not just about titles; it’s about the impact and the challenges you tackle. You will collaborate with peers who inspire you to do your best work in an environment built to last.If this resonates with you, we invite you to join us in shaping the future.About the Kernel TeamThe Kernel team is integral to hyperexponential’s platform, responsible for the execution engine that processes pricing models with safety, reliability, and scalability. Our work supports the critical decisions made by insurers, ensuring that complex pricing logic operates seamlessly while also maintaining the performance and reliability essential for mission-critical underwriting workflows.In this role, you will contribute to the Kernel team by developing well-defined features, tests, and internal tools while gaining a comprehensive understanding of how the execution engine functions from start to finish. You will collaborate closely with seasoned engineers to grasp the architecture, diagnose issues, and gradually take on more responsibility.

We are seeking a talented and motivated Staff Software Engineer specializing in React Native to join our dynamic team at Box, Inc. In this role, you will be instrumental in developing innovative mobile applications that enhance user experience and drive engagement.Your responsibilities will include collaborating with cross-functional teams to define and design new features, maintaining existing applications, and ensuring code quality through best practices and testing.

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.

Join Veeam Software as a Software Developer in Test, where you will be at the forefront of ensuring the quality and reliability of our products. You will work in a dynamic environment, utilizing your expertise in Python or C# to develop automated tests and enhance our testing frameworks.

Join the forefront of online security with Nord Security!Are you an innovative backend engineer eager to tackle complex challenges? Become a pivotal part of our Threat Protection Pro team, which powers the renowned NordLynx protocol and is behind the fastest VPN globally. Our mission is to empower users by restoring their privacy, security, and control over their online experiences.Your contributions will: Help millions regain confidence in their online security and privacy.About Threat ProtectionAs cyber threats like viruses, Trojans, and spyware grow, ensuring a safe online experience is essential. Our dedicated Threat Protection team is committed to developing robust software solutions that safeguard our customers. If you thrive on creating scalable, secure code and tackling high-level architectural challenges from the ground up, you’ve found your next adventure!

Location: PolandAbout Us:RTB House is a leading global technology company that specializes in cutting-edge marketing solutions for renowned brands and agencies across the globe. Our proprietary ad-buying engine, the first of its kind, utilizes Deep Learning algorithms to provide advertisers with exceptional results and to effectively meet their objectives at every stage of the marketing funnel.We invite you to join RTB House as the head of our AI Engineering Lab, a team dedicated to driving innovation through the latest advancements in Agentic AI. This position is designed for a proactive engineer and technical leader committed to architecting, developing, and deploying next-generation AI solutions that enhance engineering productivity.

Join the forefront of digital security with the world's most advanced VPN.Are you a curious problem-solver eager to make a difference? Become part of the team that powers Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—innovative tools designed to restore privacy, security, and control to users everywhere.Your impact? Empower millions of users to reclaim their online security, privacy, and data.About Threat ProtectionIn an age of viruses, Trojans, worms, spyware, and other malware, ensuring online safety can be challenging. Our Threat Protection team is dedicated to solving these issues by developing robust software that safeguards our customers. You'll create scalable code capable of handling high volumes, security concerns, and complex architectures, all built from the ground up. If this sounds like the challenge you’ve been seeking, read on!Main ResponsibilitiesDesign and develop distributed microservices that shield millions from malware threats;Prioritize delivering high-quality code with a focus on scalability and security;Collaborate with a passionate team of developers to build and maintain our services using Golang;Take ownership of architecture, design, development, and deployment initiatives with respect and commitment.Core RequirementsExperience with distributed technologies and familiarity with NoSQL databases, particularly Cassandra or Kafka;Strong grasp of system design, with knowledge of applicable patterns;Passion for creating anti-virus solutions and enhancing online safety where your contributions will have a direct impact;Adept in backend architecture and technologies, willing to engage in discussions and share ideas; if you can deliver scalable and stable code, we want to connect with you;A collaborative spirit with a love for discussing, rethinking, and redesigning ideas that foster shared success within your team and the company.

Company Overview:Twisto, a Param Company, is a forward-thinking financial services provider revolutionizing payment methods in Central and Eastern Europe. Our innovative app empowers users with complete control over their financial transactions, enabling them to defer or split purchases, share expenses, pay invoices, and shop using both virtual and physical cards. We are committed to providing transparency, convenience, and competitive exchange rates both locally and globally. Our mission is to continuously innovate and expand our offerings to simplify everyday financial tasks for our customers.Your Future Responsibilities:We are seeking a dedicated Python Engineer to join our dynamic team! In this role, you will collaborate with Engineering Managers, Product Analysts/Managers, and fellow engineers to enhance user stories, define requirements, and assist in prioritizing and executing tasks throughout the software development life cycle.Key Responsibilities:Design, develop, and maintain Python applications with an emphasis on writing clean, reliable, and maintainable code.Transform business requirements into viable technical solutions.Implement new features, conduct code reviews, provide technical support, and resolve bugs.Contribute to system architecture design and ensure that technical documentation remains current.Engage actively in code reviews and promote high engineering standards within the team.Effectively communicate with stakeholders and team members regarding technical solutions and project updates, both verbally and in writing.Our technology stack is constantly evolving, but currently includes the following tools: Languages: Python.Tools: Kubernetes, Terraform, Docker, AWS Cloud, Grafana, Firebase.Methodologies: Agile, Scrum; we operate on 14-day sprints, with stand-ups conducted online via Slack.