Sofia, Sofia-City, Bulgaria · Remote OK
$60k–$67k/yr
Company Description Mirantis is the Kubernetes-native AI infrastructure company, enabling organizations to build and operate scalable, secure, and sovereign infrastructure for modern AI, machine learning, and data-intens…
Skills: InfiniBand, Ethernet Networking, Fortinet, TCP/IP, Routing
Sofia, Sofia-City, Bulgaria · Hybrid
We help the world run better At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talen…
Skills: Post-Merger Integration, Go-To-Market Strategy, Customer Success Integration, Business Process Management, Functional Design
Sofia, Sofia-City, Bulgaria · Hybrid
Company overview LucidLink is the file streaming platform for large-file workflows. We give teams and tools instant access to data in the cloud, so work starts right away, anywhere. No downloads, no syncing, no VPNs. Wha…
Skills: Salesforce Development, Apex, Salesforce Flows, Integration Design, Quote-to-Cash
Sofia, Sofia-City, Bulgaria · Hybrid
Account Support Manager with Polish language This role has been designed as ‘Hybrid’ with an expectation that you will work on average 2 days per week from an HPE office. Who We Are: Hewlett Packard Enterprise is the glo…
Skills: Account management, Polish language, English language, Project management, Change management
Sofia, Sofia-City, Bulgaria · On-site
Our client is a software development and digital solutions company serving clients across the FinTech, iGaming, and Marketing sectors. The company has successfully delivered 20+ innovative products across 5 international…
Skills: Java, Java Core, Microservices, MySQL, MongoDB
Sofia, Sofia-City, Bulgaria · On-site
Company Description Аbout Playtech Founded in 1999, the company has a premium listing on the main Market of the London Stock Exchange and is focused on regulated and regulating markets across its B2B and B2C businesses. …
Skills: Python, LLMs, RAG, AI Agents, FastAPI
Sofia, Sofia-City, Bulgaria · Hybrid
Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance t…
Skills: Site Reliability Engineering, DevOps, Incident Management, Observability, Cloud Engineering
Sofia, Sofia-City, Bulgaria · Hybrid
Job Description You’ll be joining a team that delivers high-quality U.S. e-commerce data. With over 16 years of experience, we know our craft, and we’re always evolving. In this role, you’ll use your analytical skills to…
Skills: SQL, Data Extraction, RegEx, Tableau, Power BI
Sofia, Sofia-City, Bulgaria · On-site
Make an amazing climb in your career in an international team of experts. Our company provides technological services for the whole Schwarz group of more than 30 countries in Europe and the US. Our vision is to be the le…
Skills: Service Transition Management, ITIL 4/5, German Language, English Language, Stakeholder Management
Sofia, Sofia-City, Bulgaria · On-site
Make an amazing climb in your career in an international team of experts. Our company provides technological services for the whole Schwarz group of more than 30 countries in Europe and the US. Our vision is to be the le…
Skills: Service Transition Management, ITIL 4/5, Process Documentation, Stakeholder Management, Workshop Moderation
Sofia, Sofia-City, Bulgaria · Hybrid
We help the world run better At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talen…
Skills: AI Engineering, Machine Learning, Python, SQL, Data Validation
Sofia, Sofia-City, Bulgaria · Hybrid
At Mitel, you will have the opportunity to help businesses connect, collaborate and provide better experiences for our customers. You will deliver valuable contributions in creating business success within our global org…
Skills: Salesforce Administration, Salesforce Experience Cloud, Salesforce Sales Cloud, Salesforce Service Cloud, Experience Builder
Sofia, Sofia-City, Bulgaria · Hybrid
Junior Digital Presales Solution Architect with German, Polish, Czech, or Turkish This role has been designed as 'Hybrid' with a requirement that you will work on average 2 days per week from an HPE office. Who We Are: H…
Skills: Presales Solutioning, Pricing Solutions, Technical Design, Scope Of Work Development, Customer Relationship Management
Sofia, Sofia-City, Bulgaria · Hybrid
Junior Digital Presales Solution Architect with German, Polish, Czech, or Turkish This role has been designed as 'Hybrid' with a requirement that you will work on average 2 days per week from an HPE office. Who We Are: H…
Skills: Presales Solutioning, Pricing Solutions, Technical Design, Scope Of Work Development, Customer Relationship Management
Sofia, Sofia-City, Bulgaria · Hybrid
Junior Digital Presales Solution Architect with German, Polish, Czech, or Turkish This role has been designed as 'Hybrid' with a requirement that you will work on average 2 days per week from an HPE office. Who We Are: H…
Skills: Presales Solutioning, Pricing Solutions, Technical Design, Scope Of Work Development, Customer Relationship Management
Sofia, Sofia-City, Bulgaria · Remote OK
Main responsibilities Collaborate with engineers, designers, and stakeholders in a distributed delivery environmentDevelop and maintain large-scale front-end web applications that are performant, scalable, and responsive…
Skills: Vue.js, JavaScript, TypeScript, HTML, CSS
Sofia, Sofia-City, Bulgaria · Remote Solely
CloudLinux is a global remote-first company. We are driven by our principles: do the right thing, employees first, we are remote first, and we deliver high-volume, low-cost Linux infrastructure and security products that…
Skills: Backend Development, DevOps, Apache Kafka, ClickHouse, RabbitMQ
Sofia, Sofia-City, Bulgaria · Hybrid
Trinetix is looking for a proactive and technically skilled Backbone Build Engineer. Join our team and work with Arelion, one of the world's leading Tier-1 Internet providers, operating one of the largest and most reliab…
Skills: Data Center Migration, Fiber Deployment, DWDM, Cisco IOS, Junos
Sofia, Sofia-City, Bulgaria · Remote OK
$60k–$67k/yr
Company Description Mirantis is the Kubernetes-native AI infrastructure company, enabling organizations to build and operate scalable, secure, and sovereign infrastructure for modern AI, machine learning, and data-intens…
Skills: Linux Administration, Kubernetes, NVIDIA GPU Infrastructure, Network Troubleshooting, Site Reliability Engineering
Sofia, Sofia-City, Bulgaria · Remote OK
$60k–$67k/yr
Company Description Mirantis is the Kubernetes-native AI infrastructure company, enabling organizations to build and operate scalable, secure, and sovereign infrastructure for modern AI, machine learning, and data-intens…
Skills: InfiniBand, Ethernet Networking, Fortinet, TCP/IP, Routing
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Support the deployment, configuration, and maintenance of InfiniBand and Ethernet network infrastructure for HPC and AI workloads. Troubleshoot network performance issues and manage Fortinet security solutions under the guidance of senior engineers.
Requires 2-4 years of experience in networking or infrastructure with a strong grasp of TCP/IP, routing, and Linux systems. A strong willingness to learn InfiniBand and high-performance computing networking is essential.
Mirantis is the Kubernetes-native AI infrastructure company, enabling organizations to build and operate scalable, secure, and sovereign infrastructure for modern AI, machine learning, and data-intensive applications. By combining open source innovation with deep expertise in Kubernetes orchestration, Mirantis empowers platform engineering teams to deliver composable, production-ready developer platforms across any environment—on-premises, in the cloud, at the edge, or in sovereign data centers. As enterprises navigate the growing complexity of AI-driven workloads, Mirantis delivers the automation, GPU orchestration, and policy-driven control needed to manage infrastructure with confidence and agility. Committed to open standards and freedom from lock-in, Mirantis ensures that customers retain full control of their infrastructure strategy.
Mirantis serves many of the world’s leading enterprises, including Adobe, DocuSign, Liberty Mutual, PayPal, Reliance Jio, Societe Generale, Splunk, and Volkswagen. Learn more at www.mirantis.com.
We are looking for a motivated HPC (High Performance Computing) Network Engineer to support and grow within our infrastructure team. This role is ideal for engineers with a strong foundation in networking who are interested in developing deep expertise in InfiniBand, HPC/AI infrastructure, and network security using Fortinet technologies.
You will work alongside senior engineers to operate, troubleshoot, and improve high-performance network environments, with a clear growth path toward becoming a Senior HPC Network Engineer.
Support the deployment, configuration, and maintenance of InfiniBand and Ethernet network infrastructure.
Assist in troubleshooting network issues, including connectivity, latency, and performance degradation.
Monitor network health and performance using standard tools and assist in identifying bottlenecks.
Work with InfiniBand technologies (switches, HCAs, subnet managers) under guidance from senior engineers.
Support management and troubleshooting of Fortinet solutions (FortiGate, VPNs, firewall rules).
Assist in implementing network configurations, routing, and segmentation.
Collaborate with compute and storage teams to support HPC and AI workloads.
Participate in incident response and operational support activities.
Contribute to documentation of network configurations and procedures.
Learn and adopt automation tools and practices (e.g., Ansible, scripting).
2–4 years of experience in networking, system engineering, or infrastructure roles.
Basic understanding of networking fundamentals (TCP/IP, routing, switching, VLANs).
Familiarity with Linux systems and command-line tools.
Exposure to data center networking or distributed systems environments.
Strong willingness to learn and develop expertise in InfiniBand and HPC networking.
Exposure to InfiniBand or high-performance networking concepts.
Familiarity with Fortinet or other firewall technologies.
Basic scripting skills (e.g., Bash or Python).
Understanding of monitoring tools and troubleshooting methodologies.
Hands-on training with InfiniBand fabrics and HPC networking tools.
Mentorship from senior engineers and involvement in complex troubleshooting scenarios.
Opportunity to gain experience with RDMA, MPI workloads, and large-scale cluster environments.
Path toward a Senior HPC Network Engineer role with increasing ownership and responsibility.
A strong problem-solver with curiosity about how systems work at a deeper level.
Someone eager to learn and take on increasingly complex networking challenges.
A team player who can collaborate effectively and grow within a high-performance engineering environment.
By submitting your resume, you consent to the processing and storage of your personal data in accordance with applicable data protection laws, for the purposes of considering your application for current and future job opportunities.
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We are a Leader for Container Management in G2 (#2 after AWS)!
We are a Leader for Container Management in G2 (#2 after AWS)!
Mirantis delivers the fastest path to production AI at scale, with full-stack AI infrastructure technology.
Mirantis delivers the fastest path to enterprise AI at scale, with full-stack AI infrastructure technology that removes GPU infrastructure complexity and streamlines operations across the AI lifecycle, from Metal-to-Model. Today, all infrastructure is AI infrastructure, and Mirantis provides the end-to-end automation, enterprise security and governance, and deep expertise in Kubernetes orchestration that organizations need to reduce time to market and efficiently scale cloud native, virtualized, and GPU-powered applications across any environment – on-premises, public cloud, hybrid, or edge. Mirantis serves many of the world’s leading enterprises, including Adobe, Ericsson, Inmarsat, MetLife, PayPal, and Societe Generale. Learn more at www.mirantis.com. Join Us Our team is bold and focused, using cutting edge technology to deliver unique outcomes for our customers, and we are contributors and experts in many open source projects and communities, including Lens, Kubernetes and OpenStack. We solve problems for the world’s most successful companies by empowering curiously intelligent minds. Do you have what it takes? https://www.linkedin.com/company/mirantis/jobs/
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There are currently 711 open software positions in Sofia, Bulgaria listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Tieto, Hewlett Packard Enterprise, Playtech, AgileEngine, DIGITALL, among others. Browse the listings above to see every active employer.
Yes — 515 of the 711 open software positions offer remote or hybrid work (138 remote, 377 hybrid).
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