Role Overview

To support our expanding product division, we are seeking a seasoned Technical Lead to guide a high-priority solution as it transitions from an innovation incubator phase into a mature, enterprise-grade product. In this role, you will serve as the technical anchor for an autonomous, cross-functional engineering team building safety-critical communications platforms—setting the technical roadmap and empowering the team to deliver resilient, top-quality software.
Join a global technology leader to architect dependable, scalable solutions while enjoying a flexible work environment that prioritizes personal well-being and balance.

Work Model

• Primary Model: Fully remote work setup.
• Onsite Collaboration: Periodic visits to our Bratislava or Vienna offices based on milestone needs and team alignment activities.

Core Responsibilities

• Steer the technical vision for your team’s microservices and platform features, striking the right balance between strategic architecture and immediate delivery goals.
• Function as the principal technical authority for a multi-disciplinary team developing high-reliability, safety-focused systems.
• Drive critical architectural choices and analyze engineering trade-offs (e.g., consistency vs. availability, structural simplicity vs. abstraction).
• Conduct rigorous code reviews and design evaluations to preserve software integrity and preempt structural debt.
• Mentor and upskill engineering team members, fostering independent problem-solving and technical confidence.
• Maintain end-to-end domain ownership while remaining actively involved in hands-on technical execution.
• Ensure seamless alignment and interface compatibility across distributed, inter-team systems.
• Champion rigorous quality practices, including unit/integration testing, static analysis, observability, and robust CI/CD workflows.
• Contribute hands-on code by engineering core, performance-critical components using modern C++.
• Translate complex functional and business requirements into clear, actionable technical designs within an agile delivery framework.

Technical Skills & Competencies

• Deep, advanced mastery of modern C++ standards (C++17, C++20/C++23), including template metaprogramming and multi-paradigm design (object-oriented, generic, functional).
• Extensive background in system architecture, with proven success designing distributed networks, microservices, and event-driven architectures.
• Demonstrated capability in defining service domain boundaries, data ownership paradigms, and API communication contracts.
• Thorough understanding of distributed system design challenges, including edge-case failure modes, data consistency models, and idempotency.
• Hands-on experience with asynchronous software design, real-time communications, and custom network protocol engineering.
• Strong grasp of API lifecycle management, schema evolution, and serialization tools (e.g., JSON Schema, version control).
• Proficiency with enterprise relational and embedded database systems (PostgreSQL, MariaDB/MySQL, SQLite).
• Solid experience with modern C++ build frameworks and deployment automation (CMake, CI/CD, Jenkins, or equivalent tooling).
• Practical experience with container engines (Docker, Podman/Buildah) and managing expansive, complex codebases.
• Advanced knowledge of testing frameworks (e.g., Google Test), static code analysis tools, and quality enforcement.
• Familiarity with distributed tracing and system observability frameworks (e.g., OpenTelemetry).
• Proven history operating in agile, cross-team environments with distributed collaboration needs.

Role Overview

To reinforce our Network & Infrastructure Services (NIS) division, we are seeking an experienced Senior Platform Engineer to guarantee the secure administration and ongoing enhancement of our platform infrastructure. In this capacity, you will collaborate closely with Information Security Officers, infrastructure engineers, and cybersecurity experts to apply security directives, resolve audit action items, and maintain regulatory compliance across OpenShift/Kubernetes, virtualization, and enterprise storage ecosystems.
You will be instrumental in formulating platform benchmarks, executing hardening strategies, managing vulnerability remediations, and maintaining scalable, fault-tolerant, and secure platform operations.
Become part of a global technology leader, safeguarding high-consequence, safety-critical systems while benefitting from adaptable work models and exceptional work-life harmony.

Core Responsibilities

• Translate and execute security mandates and audit remedies designated by Information Security Officers and security leads across all platform environments.
• Architect, deploy, and administer OpenShift and Kubernetes cluster infrastructures.
• Enforce system hardening standards, custom security baselines, and remediation protocols aligned with compliance criteria.
• Establish platform architecture principles, operational standards, and blueprint best practices.
• Lead automation efforts through Infrastructure as Code (IaC) paradigms and modern CI/CD deployment pipelines.
• Develop and maintain standardized, reusable platform configurations and deployment assets.
• Embed comprehensive monitoring, central logging, and security enforcement mechanisms directly into platform architecture.
• Elevate operational productivity via process automation and environment standardization.
• Guarantee high availability, scalability, and robust security for core platform capabilities.
• Partner with cross-functional platform, IT infrastructure, and security personnel to sustain compliant and secure environments.
• Champion continuous enhancements across platform security frameworks and operational methodologies.

Technical Qualifications & Competencies

• Deep, practical experience operating OpenShift and Kubernetes container platforms within enterprise cluster environments.
• Robust foundation in Linux system engineering and administration.
• Demonstrated capability in executing system hardening protocols and implementing technical security controls.
• Proven track record in vulnerability remediation and security-focused operational management.
• Comprehensive grasp of Kubernetes/OpenShift platform mechanics, architecture, and lifecycle operations.
• Proficiency with automation concepts, IaC methodologies, and automated CI/CD workflow tooling.
• Experience integrating platform-level observability, log aggregation, and security tools.
• Background in establishing enterprise platform standards and managing full lifecycle operations.
• Pluses: Hands-on experience with Nutanix hyperconverged solutions or public cloud platforms (e.g., Microsoft Azure).
• Proven ability to convert regulatory and security policies into actionable, hands-on technical solutions.
• Advanced analytical and diagnostic skills within intricate, multi-layered platform environments.

Personal Attributes & Soft Skills

• Strong accountability and direct ownership over assigned platform ecosystems.
• Structured, systematic approach to complex technical problem-solving.
• Capability to bridge compliance mandates with practical technical implementation.
• Passion for automation, efficiency, and operational consistency.
• Outstanding communication and team collaboration skills across diverse technical disciplines.
• Pragmatic ability to prioritize remediation efforts and infrastructure upgrades.
• Proactive, self-driven mindset committed to operational excellence and continuous learning.
• Ability to work autonomously while maintaining cohesive team integration.
• Dedication to upholding rigorous security benchmarks in safety-critical contexts.

Employee Benefits & Perks

• Professional Growth: Structured training pathways, technical upskilling, and language courses.
• Referral Incentive: Financial bonuses for successfully recommending new team members.
• Wellness & Support: Employee Assistance Program offering confidential legal, financial, and psychological counseling.
• Meals & Allowances: Fully covered meal contributions.
• Perks & Retirement: Multisport card options and supplementary pension scheme (DDS) contributions.
• Work-Life Balance: Adaptable working hours and work-from-home options.
• Culture: On-site refreshments alongside regular company and team gatherings.

Requirements & Background

• Field of Study: Information Technology, Telecommunications, or related technical discipline.
• Educational Attainment:
  ◦ Secondary school with school-leaving examination
  ◦ University degree (Bachelor’s or Master’s)
• Language Proficiency: Advanced / Business Fluent English (C1 level).

Role Overview

To reinforce our Network & Infrastructure Services (NIS) division, we are seeking an experienced Senior Security Engineer to elevate the security posture of our enterprise network footprint. In this role, you will collaborate closely with Information Security Officers and cybersecurity teams to turn compliance directives, risk frameworks, and audit remediation points into actionable technical solutions across our network infrastructure.
Join a global technology leader safeguarding mission-critical, safety-focused architectures while benefiting from versatile work arrangements and a strong commitment to work-life balance.

Work Model & Travel

• Hybrid Schedule: Flexible remote work options available.
• Onsite Collaboration: Regular weekly visits to our Vienna location (typically ~1 day/week) to foster team synergy, knowledge transfer, and joint project execution.
• Mobility: Fleet vehicles are provided for business travel between locations.

Core Responsibilities

• Execute network-focused security controls established by Information Security Officers and security leads.
• Enforce rigorous system hardening baselines across network hardware, including firewalls, routers, switches, and micro-segmentation architectures.
• Convert regulatory obligations and audit findings into functional technical configurations and operational enhancements.
• Spearhead vulnerability remediation campaigns and support ongoing security hardening programs.
• Accelerate remediation cycles to ensure swift mitigation of discovered infrastructure vulnerabilities.
• Hands-on execution of vulnerability patches and security bug fixes.
• Elevate technical documentation quality, streamline security evidence gathering, and improve audit trail transparency.
• Serve as an expert escalation technical lead for complex network security challenges.
• Help formulate and refine enterprise-wide security baselines and operational protocols.
• Partner with infrastructure engineering, IT operations, and governance teams to maintain full alignment with internal and external compliance frameworks.
• Assist in designing, deploying, and maintaining resilient, secure network environments.

Technical Skills & Competencies

• Deep, practical background in network engineering with hands-on mastery of firewalls, routing protocols, and switching architectures.
• Comprehensive grasp of network security paradigms, defense-in-depth principles, and industry standards.
• Direct experience executing vulnerability management programs and infrastructure remediation activities.
• Solid understanding of compliance standards, security controls, and regulatory audit lifecycles.
• Proven ability to bridge governance/compliance requirements with real-world network engineering solutions.
• Superior diagnostic and analytical problem-solving skills in multi-tiered network environments.
• Adept at creating comprehensive technical documentation and maintaining audit-ready evidence.
• Pragmatic approach to balancing stringent security controls with business agility and uptime requirements.
• Track record of applying security hardening benchmarks and technical security countermeasures.

Role Overview

We are seeking a skilled VoIP Communications Service Engineer with strong Linux expertise to serve as a primary technical advocate for our clients. In this position, you will be instrumental in maintaining high availability, top-tier performance, and optimal service quality across our communications platforms throughout their entire operational lifecycle.
Join an established global technology leader and play a direct role in elevating system reliability and customer satisfaction, all while enjoying modern flexible working options, clear avenues for professional advancement, and a healthy work-life balance.

Core Responsibilities

• Serve as the primary technical contact for client issues during post-deployment support, ensuring systems meet defined functional requirements and service quality standards.
• Manage, troubleshoot, and resolve incidents, technical queries, and service requests within established SLA parameters.
• Conduct detailed root cause investigations for complex issues and deploy effective corrective solutions.
• Assist with planned system modifications, software upgrades, and routine maintenance tasks.
• Continuously track infrastructure metrics to maintain maximum system uptime and responsiveness.
• Keep comprehensive, up-to-date documentation on incidents, technical resolutions, and system changes.
• Liaise with delivery engineers and product development units to escalate and resolve deep-seated technical issues.

Technical Qualifications & Core Competencies

• Deep hands-on experience with Linux environments (particularly RHEL), including advanced system diagnostics and performance tuning.
• Practical experience working with virtualization technologies (e.g., VMware, KVM).
• Solid foundation in networking concepts, VoIP protocols (SIP), Session Border Controllers (SBC), and PBX architectures.
• Working knowledge of automation tooling (Ansible) and shell scripting (Bash).
• Demonstrated background in system integration and technical customer support.
• Capacity to work autonomously and take end-to-end ownership of technical domains.
• Outstanding analytical and problem-solving skills within complex technical ecosystems.
• Familiarity with enterprise monitoring platforms (Zabbix) and IT service management frameworks (ITIL alignment is a plus).

Bonus Qualifications

• Experience installing, configuring, and maintaining Windows Server environments.
• Exposure to cloud platforms and infrastructure (e.g., AWS, Microsoft Azure).
• Familiarity with database systems (such as MySQL, MSSQL, PostgreSQL, or Oracle DBMS).

Key requirements

Employment type: Full-time employment
Location: Slovakia

The candidate should be a Slovak speaker willing to be present in Bratislava’s office approximately once per week and should have recent hands-on Java development experience.

Required technologies and skills:

• Java
• Spring
• REST API
• Linux
• Git
• Unit Testing
• Integration Testing

Nice to have:

• Domain-Driven Design (DDD)
• Kubernetes
• SIP / RTP
• MS SQL Server
• AI technologies
• Jira, Confluence

The role is focused on developing communication solutions for safety-critical environments. We are looking for a strong backend developer who is comfortable working independently, contributing to solution design, and collaborating closely with the team members on technical decisions.

Purpose of the Role

The Information Security Officer protects organizational assets by driving the success of security governance and the Information Security Management System (ISMS). This position ensures full alignment with all legal, regulatory, and corporate information security standards.

Key Responsibilities

• Partner with the Group Chief Information Security Officer (CISO) to run and mature the ISMS.
• Gather and present compliance performance metrics to local business leaders and the Group CISO.
• Evaluate and update the security policy framework to guarantee it remains comprehensive and effective.
• Embed and maintain security policies, workflows, and staff guidelines within daily business operations.
• Promote security policies across the organization and spearhead employee awareness initiatives.
• Work alongside global cross-functional teams—including IT, engineering, facilities, legal, incident response, and customer service—to deploy security controls.
• Oversee and execute routine day-to-day ISMS operations.
• Facilitate and prepare documentation for internal and external information security audits.
• Lead risk mitigation efforts and track corrective actions through to successful resolution.
• Address and resolve customer inquiries regarding the organization’s ISMS practices.

Authority

• Gather and report compliance metrics directly to executive leadership and the CISO.
• Mandate the execution of specific security protocols and protective measures.
• Schedule, request, and take part in security audits.
• Validate the deployment and overall success of active security measures.
• Evaluate organizational risks and escalate critical vulnerabilities to higher management.

Knowledge & Experience

• Solid understanding of management system frameworks and core principles.
• Familiarity with industry standards and regulations like ISO/IEC 27001 and NIS2.
• Practical technical expertise in information security concepts.
• Core knowledge of risk management methodologies.
• Professional credentials such as CISSP, CISM, or ISO 27001 Lead Auditor are highly valued.
• Prior experience participating in or leading audits is an asset.

Skills & Competencies

• Self-motivated professional who works reliably with minimal supervision.
• Excellent communication skills with a track record of managing diverse stakeholders.
• Quality-focused mindset characterized by strong attention to detail.
• Problem-solving attitude dedicated to finding practical solutions.
• High ethical standards and proven ability to handle sensitive, confidential data.