Mid-Level Backend Spark Developer

Join our dynamic trading platform as we extend our reach globally. Our award-winning products are recognized for their innovative technology and exceptional user experience. We are dedicated to assembling a top-tier team, and we are eager to welcome talented individuals who share our vision.In the role of Data Engineer, you will be an essential member of our data team, responsible for the design, development, and maintenance of robust data pipelines and systems. Collaborating closely with data scientists, analysts, and other stakeholders, you will ensure that our data is reliable and readily available to support informed decision-making and analytics efforts. Your key responsibilities will involve data ingestion, transformation, and delivery, alongside optimizing our data infrastructure.As a Mid-Level Data Engineer, you are expected to enhance and sustain our data infrastructure, guaranteeing data integrity and accessibility. You should demonstrate the ability to work both independently and collaboratively, adapting to evolving data requirements and partnering with fellow data professionals to derive meaningful insights for the organization. Keeping abreast of the latest data engineering best practices and emerging technologies will be vital for your success in this position.

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.

Join Box Inc. as a Mid-Level Java Engineer and take part in building innovative solutions that streamline processes and enhance user experiences. You will collaborate with a team of talented developers, contributing to the design, development, and maintenance of high-quality software applications.We value creativity, teamwork, and a passion for technology. If you are eager to tackle challenging problems and develop your skills in a supportive environment, we would love to hear from you!

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.

The project involves enhancing the architecture of a system that supports clients in branches and partner locations.RESPONSIBILITIES:Participate in architectural changes to the system.Implement new functionalities using Angular 19 and Java 21.Refactor existing code for improved performance.Create integrations with REST services.Optimize performance and implement security solutions.Assist in designing and documenting technical specifications.

Join Talan as a Mid-Level Business Analyst, where you will play a crucial role in bridging the gap between business needs and technology solutions. We are looking for a detail-oriented professional who can analyze business processes, identify areas for improvement, and collaborate with stakeholders to implement effective strategies.

Role overview Box Inc. seeks a Mid-Level Python Developer based in Warsaw, Poland. The role focuses on building web applications that are both efficient and scalable. Work alongside a team of experienced developers, contributing directly through hands-on coding and participating in peer code reviews. Writing clean, maintainable Python code is central to this position. What you will do Develop and maintain web applications using Python Write code that remains clear, organized, and easy to support Participate in code reviews to help maintain quality standards Collaborate with teammates to address technical challenges Requirements Enjoys working through complex problems Proactive and willing to learn Comfortable contributing in a collaborative environment

Join NordPass, where we revolutionize password security.At NordPass, we believe that securing logins should be both safe and straightforward. Become a part of the dynamic team behind NordPass—a trusted password manager for over 7 million users and more than 10,000 global businesses, dedicated to safeguarding credentials, payment cards, and sensitive information.Your Contribution: Play a pivotal role in helping millions protect their digital lives by developing innovative and secure login solutions.

Join our innovative team at nordsec as a DevOps Engineer. In this exciting role, you will collaborate with cross-functional teams to streamline our software development and deployment processes. Your expertise will ensure the reliability and efficiency of our systems while enabling our team to deliver top-notch software solutions.If you have a passion for automation, cloud services, and continuous integration/continuous deployment (CI/CD) practices, we want to hear from you. Bring your skills in infrastructure management and help us scale our operations!

Fraud Warning: Beware of potential scams posing as legitimate job opportunities. To ensure your application is considered, please apply only through the official Sensor Tower website or directly through our authorized profiles on platforms like LinkedIn, Indeed, BuiltIn, or Hackajob. Sensor Tower will never request payment, credit card, or bank account information during the application process. All official communications will originate from email addresses ending in sensortower.com. Interviews will be conducted via phone or Zoom, and no conversations will shift to external email or text platforms. If you encounter any issues, please reach out to us. Remember to attach your resume when applying.Recruitment Agencies: Sensor Tower does not accept unsolicited resumes from third-party agencies. Please refrain from sending resumes to our job alias, employees, or any other location. Sensor Tower will not cover fees related to unsolicited resumes and will not compensate agencies without a signed agreement.About This Role:Are you excited by the dynamic environment of a startup?Do you have a passion for developing high-impact, rapidly deployed products?Are you committed to mentoring emerging engineers and championing technical excellence?Join us in revolutionizing how insights are derived in digital marketing!Apply today!Role Summary:As a Mid / Senior Frontend Engineer at Sensor Tower, you will play a crucial role in developing top-notch products and features that enhance our user experience. Our flat organizational structure allows for your input to significantly influence product design and development.

Join our dynamic team at Jobs for Humanity as a Mid-Level Full-Stack Developer. In this role, you will play a pivotal role in developing and maintaining web applications that make a difference for job seekers around the world. You will work on both front-end and back-end development, collaborating with cross-functional teams to deliver high-quality software solutions.

The Data Center Coordinator plays a pivotal role in managing electronic devices and operating servers on a daily basis while overseeing data transfer operations both regionally and globally. Key responsibilities include monitoring the availability of physical assets, ensuring compliance with operational processes, managing inventory through dashboards, and collaborating with software, hardware, and logistics teams.This position demands proactive communication with a diverse range of stakeholders to ensure efficient execution of tasks, address customer inquiries, and provide regular updates on project status. The coordinator will also monitor cloud-based data transfer processes, identify discrepancies, perform routine system checks, and escalate issues when required.As a central point of contact, the Data Center Coordinator will work closely with international teams to standardize global processes, facilitate discussions, and anticipate business needs. The role requires strong problem-solving skills, the ability to prioritize tasks based on urgency, and occasionally attending meetings outside standard working hours.

Oxylabs, headquartered in Warsaw, develops proxy and web data scraping solutions for a diverse client base, including Fortune 500 companies. The company’s team of over 500 professionals tackles large-scale technical challenges together. Role overview This remote mid-level PHP developer position centers on managing and enhancing the infrastructure behind Oxylabs’ data platforms. The systems you will help support are built to handle vast amounts of data and high-volume traffic. Key infrastructure details Ceph storage exceeding 6 petabytes Monthly data traffic of more than 60 petabytes Over 300,000 service requests each second Streaming upwards of 500,000 Kafka messages per second What you will do The work focuses on solving complex technical problems and strengthening the core systems that power Oxylabs’ data-driven products. Expect to contribute directly to the reliability and scalability of this infrastructure.

At Samba TV, we are redefining the way viewers engage with content. Our innovative technology and robust data analytics empower media companies to connect with their audiences effectively, and advertisers to track and measure viewer interactions seamlessly across multiple devices. By harnessing a wealth of insights driven by AI and a global dataset, we aim to transform the viewing experience for everyone.As a Mid-Level Data Scientist joining our Knowledge Graph & Identity team in Warsaw, you will take charge of the complete execution of critical data science initiatives with minimal supervision. Your expertise in one of Samba's core areas—be it knowledge graphs, identity management, audience measurement, or modeling—will be crucial. You will utilize modern machine learning and AI techniques to develop production-ready solutions. Collaboration with peers, product managers, and engineering teams will be key, alongside mentoring junior data scientists to foster growth within the team.

Join Nord Security in Shaping a Safer Cyber Future!At Nord Security, we empower individuals and businesses to reclaim their online security, privacy, and data. Our innovative products, including VPNs, password managers, and threat intelligence solutions, are trusted by millions globally.As our digital lives expand, your contribution will help users take ownership of their online experience.We believe that innovative web technologies can optimize user experience. Our success hinges on professional development, initiative, and a profound understanding of our users and their challenges.We are seeking a talented Data Analyst to join our Product Team in the web department. You will play a pivotal role in developing cutting-edge user acquisition platforms that facilitate the discovery, learning, and purchasing of Nord Family products. Your expertise in data-driven insights will help identify opportunities and validate experiments, turning business challenges into sustainable, forward-thinking solutions.

Join Saily, where we are transforming the travel experience by eliminating the hassle of staying connected while on the go. Our service offers lightning-fast, secure mobile data across 200+ destinations, without the burden of roaming fees or plastic SIM cards. With millions of satisfied customers and countless travelers engaging with our service, we are on a mission to redefine connectivity.At Saily, we cultivate an AI-native Product Engineering culture, which empowers our engineers to take full ownership of product development from conception to deployment. Our AI Agents handle repetitive tasks and assist engineers in maximizing their productivity. We believe in the collective effort to enhance our service by continuously identifying areas for improvement and implementing innovative solutions.We prioritize curiosity, learning, and collaboration while keeping our customers' comfort and connectivity as our core focus. At Saily, we value growth over comfort, contribution over hierarchy, and impact over process, providing our talented team with the autonomy and context necessary to excel.

Join Nordsec as a Mid-Senior Site Reliability Engineer in Warsaw, where you'll play a pivotal role in ensuring the reliability and performance of our systems. You will collaborate with cross-functional teams to enhance our infrastructure and optimize our deployment processes.In this role, you will be responsible for designing and implementing robust systems, automating processes, and monitoring our production environments.

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.

At Samba TV, we are at the forefront of transforming the global viewing landscape through our innovative data and technology. Our mission is to enhance the viewing experience for audiences worldwide. With our unique data capabilities, we empower media companies to connect with viewers for their latest shows and movies, while providing advertisers with tools to engage audiences and evaluate their reach across various devices. Our rich narrative is shaped by a diverse array of cultural insights derived from our extensive global data reach and AI-driven analytics.We are looking for a talented Data Engineer to join our data platform team. This team is essential in developing and maintaining the robust data platform that serves our entire organization, facilitating everything from data ingestion to advanced analytics and reporting. You will work with valuable viewership data and contextual datasets, as well as scalable applications that support data-driven decision-making. Our hybrid work model allows you to collaborate primarily using AWS, Databricks, BigQuery, and Snowflake technologies. The successful candidate will possess significant expertise in cloud-based data engineering, distributed data processing, and data governance, ensuring our analytics, reporting, and machine learning initiatives are well-supported.