Who we are

DoubleVerify is a leading software analytics firm, publicly traded since April 2021 (NYSE: DV). We are the go-to source for tracking and analyzing digital ads for globally recognized brands and publishers. If you've ever come across an ad online, be it on the Web, Mobile, or CTV device, chances are we measured it.

Serving both advertisers and publishers, DoubleVerify operates on a massive scale, handling over 100B events per day. We verify that all ads are fraud free, appear next to appropriate content, appear to people in the right geography and measure the viewability and user’s engagement throughout the ad’s lifecycle. We also offer tools to empower clients to analyze, visualize and optimize the quality of their ad inventory.

With R&D centers in Belgium, USA, Israel, Finland, and Germany, we are a truly global company. We thrive in a dynamic environment with numerous challenges to solve. If you like to work in a large-scale environment and want to contribute to building products that significantly impact the industry and the web, DoubleVerify is the place for you.

The team and your role

We are looking for a highly motivated individual to join the Publisher Activation team based in Ghent.

The Publisher Activation team is dedicated to creating new integrations and tools that assist our customers, the publishers, in using our measurement technologies. To gather the necessary metrics for our measurement services, we directly integrate with the native browser APIs on the client-side. On the server side, we have multiple components that further process the requests initiated by our client-side scripts.

Our technology stack is built for scale and reliability. We use GitLab for version control and collaboration, with CI/CD and Infrastructure as Code (Terraform) powering our deployment pipeline. Grafana and Prometheus give us real-time visibility into our systems, while Google Cloud Platform and Cloudflare provide our serverless infrastructure. We store our data in BigQuery and rely on tools like Ox, Jest, and Playwright for testing and security. We also make heavy use of AI coding agents like Claude, Copilot, and Cursor to accelerate our development.

As a Junior Software Engineer Intern, you will be involved in the day-to-day activities of our team, including standups, engineering discussions, and code reviews. You will collaborate on our existing projects and also have the opportunity to cover a project from start to end. This is a hands-on position where you will be expected to write code and solve complex problems. You will be able to use agentic AI workflows to speed up your work, and you will also be assigned a mentor who will guide you throughout your internship, providing a rich learning experience. 

Who you are

You…

• are a Master's student in Computer Science or a closely related field. 
• are a problem solver first, not just a coder
• enjoy collaborating and are proactive, but you can also work independently

Extra plus points for:

• Familiarity with: JavaScript/TypeScript, serverless workers, web technologies, automated software testing, browser APIs, code profiling
• Good data analysis skills
• Open Source contributions or public GitHub projects (do share!)

What We Offer

• A dynamic environment that encourages rapid growth
• An 8-week internship during the summer period (Jul, Aug, Sept)
• Mentorship and Learning Opportunities
• A diverse and inclusive company culture
• Fun office perks such as snacks, lunch, etc.
• On-site at our Ghent office at least 3 days/week

Summary

Are you passionate about IT, technology, and cybersecurity? Do you enjoy working on projects and system configuration along with the variety of general IT work? We're seeking a talented System Administrator to join our growing IT team.

In this role, you'll primarily focus on IT projects such as setting up, monitoring, and maintaining our systems, services, and networks, as well as managing security tools and responding to events. As a shared responsibility with the team, you'll support employees, help with onboarding, and maintain an office IT presence. This role requires being in the office 4 days per week.

Responsibilities

As an IT System Administrator, your three main focus areas will be:

Operational: Ensure the reliable operation of our IT systems and networks. Manage configurations, infrastructure, and integrations, and implement improvements to keep systems stable and efficient.

Support: Maintain an office IT presence, provide hands-on support for employees, and manage onboarding/offboarding processes including hardware and account setup. Act as the go-to contact for technical assistance.

Security & Compliance (Contribution): Contribute to security by applying patches, managing access controls, monitoring events, and supporting vulnerability remediation. Assist in audits, access reviews, and compliance initiatives in collaboration with the security team.

Core Operational & Support

You will primarily be responsible for:

• Managing and maintaining our on-premise IT infrastructure, including servers, networks, and related to hardware/software
• Supporting and administering cloud-based services and integrations 
• Monitoring system performance, troubleshoot issues, and resolving issues to minimize downtime
• Overseeing device management systems (MDM) for laptops, servers, and mobile devices
• Providing technical support for employees (hardware, software, and network) both on-site and remote
• Executing onboarding and offboarding tasks, including account provisioning and hardware setup
• Planning and implementing upgrades, migrations, and system enhancements
• Tracking and managing IT assets, hardware inventory, and software licenses
• Maintaining and building accurate documentation of system configurations, processes, and procedures

Security & Compliance (Contribution)

You will contribute to and collaborate on:

• Managing and testing backups, disaster recovery, and business continuity procedures
• Implementing security measures such as access controls, patch management, and event logging
• Supporting identity and access management (IAM) practices in collaboration with IT/security leads
• Helping to prepare for audits, compliance checks, and access reviews
• Coordinating with teams on vulnerability management and incident response
• Providing input on vendor assessments and service provider reviews

Systems & Tools

You'll work with cloud platforms (Google Cloud Platform), on-premise infrastructure (Proxmox virtualization on Dell servers and Mac hardware, a lot of smartphones), containerization (Docker for services and builds), device management tools (Microsoft Intune, NinjaOne, Mosyle), automation technologies (Python-based codebases, Ansible), and collaboration tools (Slack, Google Workspace). You'll support a diverse environment where employees use Linux, macOS, and Windows.

Profile

The successful candidate has:

• 3+ years of hands-on experience in system administration and IT support
• Bachelor's degree in Computer Science, Information Technology, or a related field
• Strong knowledge of operating systems (Windows, Linux, and macOS), server administration, and virtualization technologies
• Experience managing IT infrastructure including servers, networks, and storage systems
• Familiarity with security principles, including access controls, patch management, and security audits
• Proficiency in network configuration and troubleshooting (TCP/IP, DNS, DHCP)
• Knowledge of scripting languages (e.g., Python) and automation tools
• Strong problem-solving skills and ability to troubleshoot complex technical issues
• Excellent communication and interpersonal skills to work effectively with employees at all levels
• Detail-oriented, organized, and able to manage multiple priorities
• Collaborative team player with a continuous learning mindset
• Fluent in English

Nice to have:

• Relevant certifications (e.g., CompTIA A+/Network+/Security+, or similar)
• Experience with Docker and containerization
• Knowledge of security frameworks (e.g., ISO 27001, CIS)
• Experience with Google Workspace and cloud-based device management

What Guardsquare offers you

• A full-time job with a competitive salary package.
• You are provided with the tools & flexibility to develop yourself successfully.
• An international environment where you will interact with motivated & open colleagues from different backgrounds.
• A workplace where you can share and implement your ideas.
• A hybrid work policy, which helps guarantee an excellent work-life balance.

At Guardsquare, we take pride in being a diverse and multicultural company with team members representing numerous nationalities. We value different perspectives and opinions throughout the business which has contributed to our being the market leader in mobile application security. 

You will be part of a dynamic team that strives for excellence and focuses on continuous education and enhancement in skills. We encourage & empower our trusted colleagues to share their opinions, actively collaborate, and continue to learn and grow.

So, what are you waiting for? Join us! 

You can apply for this opportunity by filling out the application form below! 

About Guardsquare

Guardsquare offers the most complete approach to mobile application security on the market, delivering the highest level of protection, with ease. Guardsquare integrates seamlessly across the full development cycle, from mobile app security testing and code hardening to real-time threat detection and app attestation. Guardsquare provides enhanced mobile application security across the entire development process.
More than 975 customers worldwide across all major industries rely on Guardsquare to help them identify security risks and protect their mobile applications and SDKs against reverse engineering and tampering in the ever-evolving threat landscape.

Guardsquare is based in Leuven (Belgium), with offices in Gent (Belgium), Boston (USA) and Munich (Germany).

Overview:

Title: Tactical SATCOM Operation & Maintenance (O&M) Support

Security Clearance: Secret

Location: Brussels, Belgium

(Due to the nature of the work and contract requirements, U.S. Citizenship is required.)

Description:

C3EL is seeking a cleared and experienced professional to join our team in Brussels, Belgium. The Tactical SATCOM Operation & Maintenance (O&M) Support will support the day-to-day end users of tactical satellite systems to include but not limited to Secure Internet Protocol Router (SIPR)/Non-Secure Internet Protocol Router (NIPR) Access Point (SNAP), Support Wide Area Network (SWAN), Inflatable SATCOM Antenna (ISA), and Wireless Point to Point Links (WPPL).  

Responsibilities will include, but not be limited to:

• Operate tactical SATCOM systems based on formal training and certification. 
• Apply in-depth knowledge of network protocols and foundational network theory in daily operations. 
• Configure, manage, and troubleshoot Dynamic Multipoint Virtual Private Network (DMVPN) architectures. 
• Implement and support routing protocols including OSPF, EIGRP, and RIP. 
• Apply switching fundamentals such as VLANs, VLAN Trunk Protocol (VTP), Port Security, and Spanning Tree Protocol (STP). 
• Utilize Cisco encryption technologies within DMVPN environments to ensure secure communications. 
• Understand and apply TCP acceleration techniques to optimize performance over satellite links. 

Minimum Qualifications:

• Active, in-scope Secret clearance.
• U.S. citizenship.
• A minimum of seven (7) years of experience working with satellite terminal systems is required. 
• Must have at least two (2) years of experience in a tactical environment operating and maintaining key satellite components, including antenna controllers, Solid State Power Amplifiers (SSPAs), Low Noise Amplifiers (LNAs), Low Noise Blocks (LNBs), up/down converters, and various cabling types such as fiber optic, coaxial, and Ethernet. Proficiency with FDMA and TDMA satellite modems is essential. 
• Demonstrated expertise in both commercial and military satellite acquisition procedures. Strong background in IP routing and switching, VoIP, Quality of Service (QoS), T1/E1 voice and data systems, and Foreign Exchange Server (FXS) configurations. Experience with MRT systems is preferred. 
• Knowledge and hands-on experience with Satellite Line of Sight (LOS) and Near Line of Sight (NLOS) communication methods.
• Required Certifications:
  • An active CompTIA Security+ CE (or equivalent 8570 IAT Level II certification).
  • An active CompTIA Network+ CE (or CCNA/CCNP)
  • A relevant modem certification (e.g., iDirect, GVF training, Viasat)
• Able to travel to support mission up to 50%. 
• Must possess a valid U.S. passport.

Education:

• Associates degree preferred, OR eleven (11) total years of recent specialized experience.