We at Holycode are currently looking for a Senior Network Engineer for our Genesis Cloud team, to architect, optimize, and scale our network infrastructure for bare-metal AI cloud computing.
In this role, you will ensure high availability, security, and performance across our data centers, edge networking, and internal services. You will collaborate closely with cross-functional teams, maintain automated network management practices, and mentor junior colleagues in best practices.
About Genesis Cloud
Genesis Cloud provides sustainable, high-performance cloud computing solutions, offering affordable and scalable GPU instances powered by 100% renewable energy. Their mission is to make high-performance computing accessible and environmentally friendly. With a strong focus on innovation, security, and efficiency, they cater to businesses and developers in AI, machine learning, and other compute-intensive fields.
No AI agent works without infrastructure – and Genesis Cloud is the backbone of AI innovation. AI infrastructure is currently one of the hottest battlegrounds in tech, with global investments soaring and the race for scalable, high-performance solutions intensifying. Genesis Cloud is uniquely positioned as one of the few providers in Europe, giving them a distinct advantage in data sovereignty, regulatory compliance, and low-latency access to key markets.
What makes them unique is their commitment to sustainability, cost-efficiency, and cutting-edge cloud solutions.
Role Overview
As a Senior Network Engineer, you will be responsible for architecting, maintaining, and optimizing Genesis Cloud’s AI-focused network infrastructure. You will work on data center networking, peering, routing, and automation to ensure high-performance AI workloads run seamlessly. Beyond hands-on technical work, you will mentor junior engineers, share best practices, and foster a collaborative engineering culture within the team.
Key Responsibilities
- Design & Optimize High-Performance Cloud Networking
- Architect and maintain network infrastructure for high-performance AI workloads.
- Implement peering agreements and optimize edge/core router configurations.
- Design Clos architectures to support high-speed cloud networking.
- Monitor and optimize BGP, EVPN, and VXLAN routing.
- Data Center & Infrastructure Engineering
- Design rack layouts with power and networking constraints in mind.
- Deploy and maintain network hardware (switches, transceivers, cables, edge routers).
- Oversee clean cabling and system racking for efficient data center operations.
- Network Operations & Security
- Implement DDoS mitigation and blackholing strategies.
- Troubleshoot routing issues and optimize network configurations.
- Monitor and maintain InfiniBand infrastructure.
- Ensure high availability and security across network services.
- Automation & Infrastructure as Code
- Automate network deployments using GitOps principles, Ansible, and GitHub Actions.
- Monitor network performance using observability and logging tools.
- Document network configurations, procedures, and best practices in Confluence & Jira.
- Mentorship & Collaboration
- Act as a technical mentor for junior engineers and network specialists.
- Foster a culture of automation, security, and continuous learning.
- Collaborate with other teams to ensure seamless network integration with AI infrastructure.
Requirements & Qualifications
- Must-Have Skills
- Strong experience in network architecture & operations for cloud or data center environments, ideally 5+ years.
- Expertise in BGP , EVPN, VXLAN, and peering configurations.
- Proficiency in SONiC or other network operating systems (nOS).
- Experience with routing daemons (FRR), DHCP , and (i)PXE boot environments.
- Solid knowledge of Linux networking tools (iproute2, systemd, VPP , etc.).
- Familiarity with InfiniBand administration and monitoring.
- Strong scripting & automation skills (Bash, Python, Ansible, GitOps).
- Ability to debug network issues, optimize routing, and ensure security.
- Strong collaboration, problem-solving, and mentoring skills.
- Proficient in both written and spoken English.
- Nice-to-Have Skills
- Experience with Kubernetes networking (CNI, service meshes, multi-cluster networking).
- Knowledge of high-performance computing (HPC) networking.
- Understanding of data center automation (NixOS, Terraform, GitHub Actions).
- Experience working with policy-based network security (OPA, Kyverno).
- Contributions to open-source networking projects.
Benefits:
- Private health insurance
- Flexible work model – full remote or hybrid
- Equipment of your choice (laptop, monitor, accessories)
- High-growth company with innovative products
- Supportive, international team
- Budget for professional development (courses, books, conferences)
- English and German language lessons during working hours
- Nice office in Belgrade with a stocked kitchen and game area
- Opportunity to learn, grow, and make a real impact
If you are looking for an environment where you can grow professionally, learn from the best in the field, balance work and life habits and have a pleasant and enthusiastic environment, please submit your CV in English.
#LI-hybrid
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What We Do
Holycode is a software development and IT nearshoring company, based in Switzerland, Germany, Serbia (Belgrade & Novi Sad) and Romania (Bucharest). We develop cutting-edge projects for Europes fastest growing startups and brands. Our mission is to offer every software solution from the foundation of the company to the IPO and beyond. Some of our in-house specialisations: - IT Nearshoring : Development teams that work exclusively for you full time. Based with us but fully integrated into your company. - Software Projects : End-to-end development of MVPs/POCs as well as complex software projects with our own teams. - ERP Systems : Specifically Microsoft Dynamics/BC & SAP. We cover everything from process analysis to maintenance. We are really amazing in table tennis, table soccer and dart but also in PHP, Java, Ruby on Rails, Python, iOS, Android, JavaScript and co. Our primary goal is to provide great working conditions and a great atmosphere for our team in order to have great results. That’s why we always follow the suggestions and ideas of our employees without whom our company would not be what it is – a place where work becomes fun and the results are amazing!
