We are looking for a DevOps Engineer to lead the automation of our hybrid infrastructure in our offices in Warsaw/Poland or Belgrade/Serbia. You will be responsible for managing a diverse environment that includes both AWS cloud services and on-premise bare-metal servers. A significant part of this role involves evolving our database operations—moving away from manual tasks toward a fully automated, scalable, and observable data platform.

Key Responsibilities:

• Hybrid Infrastructure Management: Design and maintain IaC for both AWS (RDS, EC2) and physical bare-metal servers using Terraform/Terragrunt and Ansible.
• Advanced Automation & Scripting: Develop custom tools and scripts (using Python or Go) to automate complex workflows that off-the-shelf tools can't handle.
• Database Lifecycle Automation: Automate provisioning, configuration tuning, and schema migrations. Work closely with DBAs to eliminate manual toil through code.
• Observability: Build and maintain high-fidelity monitoring for databases and system health using the Prometheus stack.
• Security & Compliance: Centralize secret management and access control using HashiCorp Vault.
• Knowledge Sharing: Act as a subject matter expert, documentation enthusiast, and mentor for the team as we evolve our infrastructure practices.

Technical Requirements:

• Experience: 3+ years in DevOps/SRE with a focus on infrastructure automation.
• Hybrid Ops: Proven experience managing both Cloud (AWS) and On-prem (Linux bare-metal) environments.
• Tooling: Expert-level knowledge of Ansible and Terraform/Terragrunt.
• Development Skills: Strong proficiency in Python or Go for infrastructure scripting and internal tooling.
• Linux Internals: Deep understanding of Linux systems, disk I/O optimization, and networking.

Nice to Have (The "Extra Mile"):

• Kubernetes (K8s) Expert: Hands-on experience with K8s (EKS or self-managed).
• Databases in K8s: Experience (or a strong desire to lead the transition) of running stateful workloads (Databases) inside Kubernetes using Operators or Helm.
• Mentorship: A passion for teaching and sharing K8s/Automation best practices with colleagues to level up the entire team.

What We Offer:

• The chance to work on complex, high-load systems where "manual" is a forbidden word.
• A collaborative environment where your architectural decisions directly impact the stability of the product.
• Modern stack and the freedom to introduce new tools that solve real problems.

We are looking for a Platform Data Engineer to join our Spanish hub in Belgrade and work on real-time analytics and streaming solutions. You’ll design scalable data architectures, optimize pipelines, and drive best practices across teams.

✅ Responsibilities:

• Advise business streams on data platform architecture: when and how to use ClickHouse, explain data flow architecture;
• Review code and solutions from business teams, ensure best practices and scalability;
• Design and build platform data architecture: tables, materialized views, and views in ClickHouse;
• Configure and maintain Debezium and MSK Kafka connectors;
• Build and optimize data pipelines and database performance;
• Lead and drive initiatives to improve data platform standards and adoption.

✅ Requirements:

• 5+ years of hands-on experience working with data;
• Strong expertise in ClickHouse (schema design, queries, performance optimization);
• Good knowledge of relational databases (e.g., MySQL), ability to analyze and reverse-engineer schemas and code;
• Experience with streaming tools (Kafka, Debezium, connectors);
• Ability to review code and guide teams in architectural decisions;
• Strong problem-solving and communication skills;
• Experience driving initiatives across teams.

✅ Why you should join us?

We offer Excellent benefits, including but not limited to:
🧑🏻‍💻 Learning and development opportunities and interesting challenging tasks; 
✈️ Relocation package (tickets, staying in a hotel for 2 weeks); 
📚 Opportunity to develop language skills, with partial compensation for the cost of Spanish classes (for localisation purposes). 
🏥 Global coverage health insurance. 
🏝 Time for proper rest, with 23 working days of annual vacation and an additional 6 paid sick days. 
📈 Competitive remuneration level with annual review. 
🤝 Teambuilding activities

We are looking for a skilled Senior DevOps Engineer in our office in Serbia, Belgrade.

✅ Responsibilities:

• Multi-CDN & Edge Management: Manage and optimize Edge Services across multiple providers, including Cloudflare, Fastly, and Gcore. This includes configuring DNS, CDN, Edge Computing (Snippets/Workers), Access Control, and WAF policies.
• Provider-Agnostic Resilience: Design and implement cloud-agnostic failover strategies and high-availability solutions to ensure service continuity, preventing vendor lock-in and dependency on a single provider.
• Traffic & Performance Engineering: Monitor and fine-tune HTTP traffic handling, global load balancing (GSLB), and caching strategies to minimize latency and optimize content delivery at a global scale.
• Mass Domain & SSL Management: Orchestrate configurations for a large-scale domain portfolio, including automated SSL/TLS provisioning and unified security policy enforcement across different platforms.
• Advanced Infrastructure as Code (IaC): Maintain reusable and scalable configurations using Terraform or OpenTofu to manage diverse provider environments, ensuring infrastructure is auditable and consistent.
• Security & Web Protection: Collaborate with security teams to implement robust Rate Limiting, DDoS mitigation, and Bot Management across the network and application layers.
• Observability & Incident Response: Participate in on-call rotations, perform root cause analysis (RCA), and tune performance for both edge and application layers using centralized monitoring tools.
• CI/CD & Automation: Integrate edge configuration changes into CI/CD pipelines, automating deployments and ensuring rigorous testing of infrastructure changes.

✅ Must Have:

• 2+ years in DevOps, Site Reliability, or related roles with a focus on Cloudflare services.
• Solid understanding of HTTP protocol, caching principles, and CDN concepts.
• Experience managing Cloudflare DNS, Firewall Rules, Page Rules, Workers, and related services.
• Strong knowledge of Nginx (or similar: Envoy, HAProxy) for reverse proxy and load balancing.
• Proficiency with Infrastructure as Code concepts and practical experience with Terraform.
• Understanding of networking fundamentals including TCP/IP, routing, and security best practices.
• Experience working with Linux environments and scripting (Bash, Python, or similar).
  
  

✅ Nice to Have:

• Experience with Cloudflare Enterprise features (Argo, advanced caching, Cloudflare Workers KV).
• Experience with performance testing and analysis tools for CDN and edge optimization.
• Familiarity with container orchestration systems (Kubernetes).
• Experience with CI/CD systems (GitLab CI, Jenkins).
• Basic security knowledge (SSL management, security headers).

We invite a Security Engineer. This is a full-time, office-based role (no remote/hybrid) in one of our hubs:

• Belgrade, Serbia
• Lisbon, Portugal
• Sofia, Bulgaria
• Warsaw, Poland

The final location will depend on business needs and the feasibility of relocation from your current spot.

✅ Requirements: 
Must-Have:
✔️ 5 years of experience in IT infrastructure administration or information security roles. 
✔️ Advanced administration of macOS, Windows, and Linux operating systems, including secure configuration, system hardening, access control management, and troubleshooting at the OS level. 
✔️ Understanding of networking fundamentals, including IP networking, routing, switching, and network protocol behaviour relevant to security analysis. 
✔️ Basic knowledge of regulatory requirements and standards such as ISO27001, ISO27701, PCI DSS, GDPR, and others. 
✔️ Administration and configuration of EDR/XDR platforms, including policy management, detection rule tuning, incident investigation, and endpoint threat response. 
✔️ Configuration and administration of enterprise VPN solutions, including secure remote access management, authentication policies, and network access control. 
✔️ Administration and tuning of DLP systems, including policy development, data classification integration, and monitoring of data exfiltration risks. 

Nice-to-Have:
✔️ Proficiency in working with any kind of simple scripts: bash, PowerShell or Python, etc.. 
✔️ Understanding of the basic principles of virtualisation platform functionality. 
✔️ Experience in complex implementation or support projects of enterprise information security solutions (any solution classes from the list): MDM, SIEM, DLP, PAM, NGFW, Endpoint Security. Etc..
✔️ Experience with deployment and administration of IDS/IPS solutions, including rule tuning and network threat detection. 
✔️ Experience with PaloAlto, Digital Guardian, OpenVPN security solutions. 

✅ Responsibilities:
System Administration:
✔️ Manage security systems: DLP, XDR, Network VPN gateway.
✔️ Implement and maintain security control policies to enhance security.
✔️ Keep security system infrastructure updated and patched. 
✔️ Integrate security systems with new IT solutions and assets.
✔️ Debug issues related to the security systems software - cooperate closely with vendor support. 

Monitoring and Analysis:
✔️ Continuously monitor network activity, systems load. 
✔️ Monitor and review vendor notifications about Saas security system maintenance, critical vulnerabilities, new releases and features. 
✔️ Identify and analyze potential threats and vulnerabilities in the security systems.

Incident Response: 
✔️ Respond to security incidents and provide 2-3 levels of support for the SOC team, coordinating incident response efforts. 
✔️ Escalate incidents to other teams as necessary. 

Reporting, Documentation, and Continuous Improvement: 
✔️ Prepare tech documentation after implementation of new security controls, system configurations. 
✔️ Create basic instructions for security software for end users. 
✔️ Suggest improvements to security system configuration and incident mitigation. 
✔️ Participate in post-incident reviews and propose enhancements. 

We invite a Senior Application Security Engineer to join our team.

🌎 Global Remote Mobility: Available for Senior roles in selected jurisdictions.

✅ Responsibilities:
✔️ Demonstrated ability to collaborate with other teams to achieve complex objectives.
✔️ Responsible for security architecture design from cloud infrastructure to application through the implementation of "secure by design" principles.
✔️ Collaborate with product managers, architects, and developers on the implementation of the security controls platform ecosystem and products.
✔️ Proof security implementations within infrastructure and application deployment manifests and the CI/CD pipelines.
✔️ Define required policies, controls, and capabilities for the protection of products and environments.
✔️ Build and validate declarative threat models automation.
✔️ Participate in engineering teams’ product planning cycles and committees.
✔️ Oversee the product security aspects for migration of products and services from Data Center to public cloud, e.g., AWS.
✔️ Serve as a trusted cyber security advisor to product and application teams.

✅ Minimum Requirements:
✔️ Experience integrating security scanning/tooling into the development pipeline.
✔️ Experience in analysing and securing microservices and applications developed using JavaScript and Typescript.
✔️ Experience with CI/CD pipelines (such as Gitlab, Jenkins) and infrastructure-as-a-code models (such as Terraform, Helm, or CloudFormation).
✔️ Hands-on development experience in Python/shell scripting.
✔️ Strong understanding of supply chain security, software integrity, and secure software delivery.
✔️ Experience with Docker and mesh technologies (such as ISTIO).
✔️ Experience with architecture and security reviews, threat modelling, and application risk is highly desired.
✔️ Experience working with Agile methodologies.
✔️ Knowledge of privacy laws and regulations, such as GDPR desired.
✔️ Familiarity with industry regulations, frameworks, and practices. For example, PCI, ISO 27001, NIST, etc.

✅ PREFERRED QUALIFICATIONS:
✔️ In-depth experience with architecting secure services on Kubernetes.
✔️ Extensive experience with architecting secure services on AWS or on-prem data centers.
✔️ Security-related professional certifications e.g., CISSP, CISM, CCSK, CCSP, CEH, are highly desirable.

✅ We offer excellent benefits, including but not limited to:
💻 Learning and development opportunities and interesting, challenging tasks.
✈️ Relocation package (tickets, staying in a hotel for up to 2 weeks, and visa relocation support for our employees and their family members).
📚 Opportunity to develop language skills, with partial compensation for the cost of English and Portuguese language classes (for localization purposes). 
🎾 Partial compensation for tennis and padel lessons. 
🏀 Urban Sport membership benefit (the most diverse sports and wellness offering in Europe, with more than 50+ activities). 
🏥 Private medical coverage, including inpatient, outpatient, dental care, annual check-ups, and maternity support. 
🏝 Time for proper rest, with 24 non-business days per year and an additional 6 paid sick days. 
🚌 Transport compensation - 200 euros net per month. 
📈 Competitive remuneration level with annual review. 
🤝 Teambuilding activities. 

✅Key responsibilities:
✔️ Manage Product Backlog Formulating the list of backlog items and prioritising them as per the critical business objectives;

✔️ Define Sprint Objectives The product owner defines the suggested sprint objective which will serve as a base to determine the sprint goal;

✔️Review and approve the work done by the development team: The product owner inspects the product increment made by the development team in each iteration, from design preparation to production release verification;

✔️ Provide effective communication to the stakeholders of the project: The Product Owner is the central communicator between the development team and the stakeholders;
They need to be clear and concise communicators to ensure there is approval of the stakeholders for all major decisions and strategies;

✔️ Backlog Refinement: Ability to prioritise, enhance, and finalise the items with the team before the sprint planning;

✔️ Create and Maintain Change Requests Associated with the Product: Predominantly an Operational task. The Product Owner will gather and prioritise operational changes and include them within the Product Backlog for future sprint iteration;

✔️ Define Acceptance Criteria for their Product: The Product Owner must know what they want their product features to achieve.Having strongly defined acceptance criteria is vital to ensure
that the Product performs to the expected standard. A/C's should always be confirmed with Stakeholders and will be used as a baseline for QA to test against;

✔️ Gather Functional and non Functional Requirements: The Product Owner will ensure that all requirements are gathered and that they meet the Product Managers expectations;

✔️ Maintain Requirements: Requirements may be adjusted during the project lifecycle, this is to be expected in a dynamic environment such as ours.
If a requirement is adjusted then this must be reflected at the appropriate level (Epic, Story);

✔️ Verify Requirements: Once the requirements, functional and non functional, have been gathered from the Stakeholder the Product Owner will confirm and agree that the requirements are fit for purpose and use;

✔️ Create and Maintain Epics, Stories, Use and Edge Cases. Although the creation of these artefacts may be done by another team the Product Owner holds accountability for the quality of their content;

✔️Participate in OKR planning: Working closely with stakeholders and participating in quarterly OKR planning for the product, including estimating their achievement.

✅Requirements:

✔️ Experience:

At least 3 years as a Product Owner or similar role (Business Analyst, System Analyst, Quality Assurance Analyst).

✔️ Skills Requirements:

  To execute tasks, technical understanding is required in the following areas:

- Requirements lifecycle

- Product backlog management

- Product development architecture

- API integrations

- Scrum and Agile development methodologies

- User experience principles

- Coding and designing (nice to have)

✔️ Communication Skills (Proficient in English)

Use of verbal, nonverbal and written communication skills to create and convey product goals. Reporting insights which allows them to maximise product value and address issues during the early stages of development.

✔️ Analytical Skills

Ability to analyse various issues and find workable solutions as quickly as possible. Identify, collect and analyse information, use reason to solve complex problems and make decisions based on logical conclusions.

✔️ Decision Making

Use technical, analytical and communications skills to make crucial decisions regarding their products success and development. After identifying an issue you must be able to collect and collate all relevant information, find ways of dealing with it, decide on the best option and implement/evaluate the results.

✔️ Organisational skills

Skills of establishing and managing processes, adapting them as necessary, and leading productive, inclusive meetings that foster collaboration and decision-making

✔️ Leadership

You will lead a team (without being a manager), therefore you must be able to demonstrate effective leadership techniques.Bring vision to the team, mentor where needed and negotiate with team members and the wider business.

✔️ Conflict Resolution

You will act as a mediator if/when conflict arises to ensure that the development stays on schedule. You will have the ability to resolve disputes over resource or power dynamics, using active listening skills to consider both sides and then make the decision.

✔️ Professional Certification:

PSPO level 1 or similar, but not a requirement

✅ We offer excellent benefits, including but not limited to:

🧑🏻‍💻 Learning and development opportunities and interesting challenging tasks;

✈️ Relocation package (tickets, staying in a hotel for 2 weeks and visa relocation support for our employees and their family members);

📚 Opportunity to develop language skills and partial compensation for the cost of language classes;

🏥 Private medical coverage;

🎁 Birthday celebration present;

🏝 Annual Vacation and paid sick days;

✅ Competitive remuneration level with annual review;

🤝 Teambuilding activities.