Why Verifone

For more than 30 years, Verifone has established a remarkable record of leadership in the electronic payment technology industry. Verifone is one of the leading electronic payment solutions brands and among the largest providers of electronic payment systems worldwide.

Verifone has a diverse, dynamic, and fast-paced work environment in which employees are focused on results and have opportunities to excel. We take pride in working with leading retailers, merchants, banks, and third-party partners to invent and deliver innovative payment solutions around the world. We strive for excellence in our products and services and are obsessed with customer happiness.

Across the globe, Verifone employees are leading the payments industry through experience, innovation, and an ambitious spirit. Whether it’s developing the next generation of secure payment systems or finding new ways to bring electronic payments to emerging markets, the Verifone team is dedicated to the success of our customers, partners, and investors. It is this passion for innovation that drives every Verifone employee toward personal and professional success.

Verifone is proudly an in-office work culture as we see immense benefits to career development and business results from our colleagues being physically co-located.

What's Exciting About the Role

Verifone is seeking an experienced MySQL Lead DBA who will be responsible for ensuring database performance, high availability, and security of clusters and single instances of MySQL instances. You will also be responsible for orchestrating upgrades, backups, HA/DR, and provisioning database instances. You will work closely with other teams, including application architects/ Sr. Developers and application support engineers for architecture design and SQL optimization, establishing and documenting best practices.

We look for dedicated and versatile engineers who are passionate about working in a company whose culture is dedicated to delivering innovative software products that solve our customers’ most challenging business needs. As a Lead DBA, you’ll have the opportunity to make significant and direct impact on our database performance, applications, and solve some of the most complex challenges in cloud and on prem environments, while lead the team from a technical and development perspective.

This hybrid role is open to hiring candidates located in:

• Bucharest, Romania
• London, United Kingdom
• Riga, Lativa
• Warsaw, Poland

Key Responsibilities

You will be responsible for ensuring that database management policies, processes and procedures are established and followed, adhering to ITIL good practice principles and are subjected to continuous improvement as per PCI standards. They will be responsible for reviewing system design changes to ensure they adhere to expected service standards and recommend changes to ensure maximum stability, availability and efficiency of the supported applications.

The candidate should understand the application functionality, business logics and work with application stake holders to understand the requirement and discuss with the new application features and propose the right solutions. He must liaise closely and work in collaboration with the release management teams, support teams and the infrastructure DBAs. 

• Design, Install, Deploy and Manage MySQL on Physical, Virtual, AWS EC2 / RDS / Aurora.
• Build MySQL clusters with a high availability, active-active cluster setup in a large scale and multi datacenter environments having minimum RPO/RTO on a DR scenario
• Design and implement uniform backup strategy and business continuity plans across the MySQL environments using Percona XtraDB or custom automation scripts with reliable monitoring and alerting mechanisms
• Define thorough and validated database monitoring and alerting, along with documentation for future references
• Setup high availability with Master-Master/ Master-slave replication
• Maintain stable performance via server optimizations
• Guide engineering teams to best practices on server configurations and SQL tuning.
• Maintain security and compliance via OS and database version upgrades
• Work with application stake holders to create effective database solutions
• Create and maintain adhoc reports
• Adhere to the incident and change process, prepare thorough documentation, and peer review planned production tasks
• Support application release process, and automations
• Mentor and develop other engineers on MySQL skills

Required Qualifications/Skills

• Minimum 8 years of experience managing MySQL
• Experience with MySQL Active/Active cluster setup, Database Upgrade and Migrations, Scripting
• Experience administrating MySQL on Linux platform
• Experience with MySQL version upgrades in production environments with a zero or very minimum application down time
• Experience with design & architecting MySQL environments using any framework such as Galera Cluster or Percona XtraDB
• Experience deploying database monitoring using at least one of PMM, New Relic, Datadog, Nagios, Grafana, ELK, AppD, etc.
• Infrastructure as Code (IaC) such as Terraform, Ansible, Puppet, Chef
• Proficiency with cloud infrastructure, AWS RDS or equivalent.
• Automation/scripting skills in a modern language like Python, Shell scripting, Go, Java, Rust.
• Proficiency in CI/CD pipelines such as Jenkins, Github Actions, Gitlab.
• Advanced experience with database performance tuning including SQL tuning, hardware configuration and capacity planning.
• Strong technical leadership, mentoring and time management skills.

Preferred Skills (Not Mandatory)

• Experience working with PCI (Payment Card Industry Data Security) standards
• ITIL environment experience
• Deep experience with SQL, stored procedures, functions, triggers, batch jobs, reporting, analytics.
• Experience managing PostgreSQL, SQL Server, and/or Oracle.
• Experience and knowledge with NoSQL and data engineering technologies such as Kafka, Redis, Snowflake, Databricks, Spark, Redshift, ETL, etc.
• Experience with data analytics and Business intelligence

Our Commitment

Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Our Partner

Our partner is a fast-growing software company that builds networks like clouds. It offers communications service providers and cloud providers a radical new way to build networks, detaching network growth from network cost and increasing network profitability.

Our partner’s Network Cloud solution uniquely supports the complete virtualization of network and compute resources, enabling communication service providers and cloud providers to meet increasing service demands much more efficiently than with today’s monolithic routers.

Their software runs over standard white-box hardware and can easily scale network capacity by adding additional white boxes into physical network clusters. This unique disaggregated network model enables the physical infrastructure to operate as a shared resource that supports multiple networks and services. This unique network design also allows faster service innovation at the network edge, supporting multiple service payloads, including latency-sensitive ones, over a single physical network edge.

Role Overview

We are seeking a DevTest Engineer with a strong QA mindset and a passion for networking, who is not afraid to use AI‑driven tools to elevate and modernize testing practices. The ideal candidate thrives in a dynamic environment, takes ownership of quality, and actively applies modern technologies to enhance automation, efficiency, and overall testing impact.
We are looking for the best of the best talent that is capable of dreaming out of the box and can execute on the dream and turn it into real value for our customers.

Responsibilities

• Own QA testing activities as part of a Scrum team in an Agile environment.
• Design, write, and execute test plans; lead TP reviews; report and verify issues.
• Contribute to PI planning and define QA scope and activities within the team.
• Participate in daily meetings, proactively raising risks and blockers.
• Collaborate closely with Dev, DevTest, Product, and Architecture to deliver high-quality features.
• Develop and maintain automated tests in a Python environment.
• Triage and analyze failures from automation regression runs.
• Actively use AI-based tools to improve testing efficiency, coverage, and debugging.
• Contribute to improving test frameworks, methodologies, and QA processes

Requirements

Must have:

• Bachelor’s degree in computer science, engineering, or related field (or equivalent experience).
• At least 2 years of experience in QA Networking, or 5 years of experience in Networking Routing.
• Deep understanding in routing protocols: ISIS/OSPF, BGP.
• Network Knowledge: L2, L3, MPLS/LDP.
• Experience in test automation using Python (preferred), Java, or JavaScript, including working with frameworks such as pytest.
• Scripting capabilities (e.g., Bash/Python).
• Strong troubleshooting and root cause analysis skills.
• Experience with CI/CD tools (e.g., Jenkins, GitHub Actions, GitLab CI).
• Hands-on experience with AI coding assistants (e.g., Cursor, GitHub Copilot) or similar tools.
• Familiarity with LLMs and prompt engineering.
• Strong English communication skills (verbal and written).
• Willing to adapt and learn new things.

Nice to have:

• Minimum 2 years of experience in QA position.
• Experience with writing test plans and performing manual/automated tests.
• Familiarity with traffic generators (Ixia, Spirent).
• Segment-Routing, RSVP, L2VPN, L3VPN, Multicast– strong advantage.
• Experience with Ixia/Spirent tool.
• Linux knowledge: deep knowledge/experience with Linux.
• Experience with Docker or containerized environments.
• Experience working with Jira in Agile mode.
• Autodidact.
• Multitasking.

Reasons to Work with Us

• Competitive financial conditions.
• Opportunity to work on internationally recognized projects.
• Flexible schedule and a hybrid work model, prioritizing remote work as much as possible to support work-life balance.
• An exciting career path within a friendly, dynamic, and growing organization.
• Professional development opportunities in a multicultural environment.
• Private medical coverage with Medlife or Regina Maria.
• Meal vouchers.
• Gift vouchers for special occasions such as birthdays, weddings, or childbirth.
• Wellbeing programs, including sick days, 7Card subscriptions, and relaxation facilities in the office.
• Team-building events and other social experiences.
• Budget allocated for certifications relevant to your project.
• Workshops, internal training sessions, and knowledge-sharing opportunities.
• Convenient city-center office location.
• Shared parking spaces.

As a global digital transformation company, Orion values creating a productive, diverse work environment. We are committed to maintaining a positive work environment where our people value traits that make each one of us different from one another. We all bring a diverse set of perspectives, work and life experiences, and our differences make us more valuable both internally and for our clients.

Let's start with the role

We are looking for a Database Administrator to join our team. In this role, you will be responsible for maintaining, troubleshooting, and optimizing our MS SQL Server environments, with a strong focus on availability, security, and performance. You will play a key role in ensuring the continuous operation of our databases, particularly in complex, high-availability scenarios such as Availability Groups. In addition, you will apply your knowledge of alternative database engines, such as MongoDB and CockroachDB, along with your expertise in cloud-based database administration.

• Provide comprehensive day-to-day support, monitoring, troubleshooting, and administration for multiple MS SQL databases, with a particular focus on high-availability configurations like Availability Groups.
• Diagnose and resolve complex performance and availability issues, performing in-depth root cause analysis to prevent future occurrences.
• Oversee database maintenance processes, including performance tuning, index management, and job automation, ensuring optimal operation.
• Develop and enforce backup and recovery policies, ensuring database resilience and disaster recovery readiness.
• Apply security patches, conduct version upgrades, and enforce strict compliance with database security best practices.
• Handle support calls and resolve technical issues promptly, including responses to security incidents and operational challenges.
• Leverage expertise in alternative database engines like MongoDB and CockroachDB to contribute to cross-functional database projects.
• Manage and optimize cloud-based database environments, ensuring scalability, performance, and reliability in cloud infrastructure.

What You'll Bring:

• Solid, hands-on experience in MS SQL Server database administration in production environments.
• Extensive experience with MS SQL Server database features, including Jobs Scheduling, Monitoring, Patching, Backup/Recovery, Replication, Availability Groups, and Always On configurations.
• Good knowledge of memory tables and table partitioning
• Proven expertise in diagnosing and resolving performance bottlenecks and availability issues.
• Good understanding of alternative database engines like PostgreSQL, MongoDB, and CockroachDB, with practical experience in administration and troubleshooting.
• Good knowledge of cloud database administration, with experience on platforms such as Azure.
• Practical experience with Git version control / GitLab. 
• Fluency in English, both written and spoken, with excellent communication skills.
• Strong teamwork, analytical thinking, and problem-solving abilities, combined with a proactive approach to continuous learning.

Location: Bucharest

About us:

IONOS is the largest cloud hoster in Europe and is setting up the foundation as European Cloud Provider. This includes not just offering storage that can compete with the American hyper-scalers, but that offers the full infrastructure stack, including AI & Machine Learning Products. As the largest hosting company in Europe, we manage more than 8 million customer contracts and host over 12 million domains in our own regional data centers in the US and Europe.

About the team:

The AI & ML Products Development department is responsible for building the platform for ML Services products for IONOS Cloud customers, as well as other companies in the United Internet group.

Our most recent product development features integration of GenerativeAI foundational models, LLMs and others. We run foundational models on prem in our cloud, such as Meta’s Llama, Mistral or StableDiffusion and also VectorDBs and offer them via APIs to our cloud customers.

We are also working with classic ML models for Computer Vision,  NLP), audio/voice  processing & predictions.

Our team is working with technologies such as HugginFace frameworks, TensorFlow, PyTorch, Keras, vLLM, notebooks, MLflow and others.

On the platform side, technologies: GoLang, Java, Spring Boot, REST APIs, Hibernate, SQL (PostgreSQL and MySQL) and NOSQL (Redis, MongoDB). 

We deploy everything to cloud-native Docker / Kubernetes environments, making use of GitHub + Actions, ArgoCD, Prometheus, and other modern cloud technologies.

You will work together with a creative and innovative group of people that love experimenting and learning new things. We are an international team that breaks barriers and solves real customer and business problems.

Main responsibilities:

Would you like to join the AI Technology team at IONOS (1&1 Internet), Europe’s leading cloud and web hosting provider? We are building a platform that provides AI solutions to customers worldwide, from GenAI / LLM inference, to model training, vector databases and much more.

We are looking for a Go Developer with Python knowledge to develop our AI Cloud platform, which provides GenAI and Machine Learning Services to customers in IONOS Cloud.

In this role, you will:

• Develop platform components, services and APIs, that integrate AI / ML services into our cloud products stack;
• Drive cloud-native implementation as part of a cross-functional team responsible for building our AI / ML platform that will provide AI-based products to our cloud customers, as well as internal clients and IONOS Group brands;
• Take part in all phases of development, maintenance and housekeeping of the platform;
• Work closely with Product Owners, Architects to define the best technical solutions that match our product vision;
• Collaborate with an international organization of software developers and AI enthusiasts.

We appreciate:

• Strong programming language in GO / Python, preferably more than one, and ecosystem knowledge with a 4+ years experience, or 7+ years for Senior level;
• Experience with cloud-native environments such as Docker, Kubernetes;
• Very good command of software design patterns and architectural concepts;
• Experience with building RESTful services;
• Ability to take on technical concepts and deliver solution for project initiatives;
• Microservice oriented architecture, performance and scalability concerns;
• Very good OOP and OOD experience;
• Experience with build tools and versioning systems, such as Git/GitHub/Gitlab, Actions, Jenkins, ArgoCD or similar;
• Good written and verbal English skills. 

Would be a plus:

• Product-oriented development mindset and a responsible ownership attitude towards software components;
• Previous experience integration AI / ML related solutions;
• Strong understanding of systems resilience, concurrency, and scalability concerns;
• Full-stack development skills are appreciated;
• Knowledge of Machine Learning technologies, working with data and ML models;
• Openness to take new approaches, learn new concepts and technologies;
• An open collaboration approach and transparent communication.

What we offer:

• Access to local/international trainings, development and growth opportunities, including access to e-learning platforms, covering both technical and soft skills areas;
• Modern technologies, product responsibility;
• Flexible work schedule;
• Hybrid work option;
• Medical services package from one of two private providers;
• 25 vacation days per year;
• Substitute days off for public holidays that occur on the weekend;
• Meal tickets;
• Internal referral program;
• Employee anniversary program;
• Team events, networking events organized to promote a passionate, creative and diverse culture;
• Summerfest and Winterfest parties;
• Of course, coffee, soft drinks and fresh fruits are on us in the office.

Our mission is to  build a modern ecosystem used for all IONOS customer support needs. The tools developed by us are used in over 20 locations, by more than 2.000 users, supporting 8 million customer contracts in 10 markets.

The development team has full responsibility for the development lifecycle. This means we plan, develop, test and deploy our software without any other internal or external dependencies.

Our portfolio revolves around an internally built CRM which is now being enhanced with AI capabilities. 

About the product you will be building:

We are building a next-generation AI platform designed to redefine how our company interacts with customers. This isn't just a chatbot; it's a high-performance, multimodal AI ecosystem powered by state-of-the-art Speech-to-Speech (S2S) models, advanced Large Language Models (LLMs), and intelligent orchestration frameworks. Our platform will understand, reason, and respond across text and voice — while seamlessly executing real-time actions to resolve customer needs.

We are aiming for a hybrid architecture of Open Source LLMs, industry-leading proprietary models, and Model Context Protocol (MCP) to enable contextual reasoning, tool invocation, and seamless orchestration across systems. The goal is not just to talk to the customer, but to act on their needs.

What makes this project unique:

The Voice Frontier: We are building low-latency, emotive speech-to-speech pipelines for a truly natural voice channel experience.

Deep System Integration: Our platform connects directly to the company's core systems via MCPs, allowing the AI to access real-time customer context and execute complex workflows.

Self-Evolving Logic: We are developing  an automated QA and evaluation module that continuously analyzes interactions across channels.By programmatically measuring quality, accuracy, latency, and resolution outcomes, we can close the feedback loop, and adapt system behavior in hours, not weeks.

Hybrid Innovation: You’ll work at the intersection of "build vs. buy," integrating the best of the open-source community with custom-built internal infrastructure.

What's in it for you:

You won't just be shipping code; you’ll be part of making this concept evolve and shift.
You’ll join a friendly, experienced team where your voice matters and your contribution shapes real-world outcomes. You’ll work in a modern environment with technologies and practices that help us ship reliable software efficiently.

Role description:

As a DevOps Engineer in this team you will  build the foundation of our internal AI Customer Care platform. You will be responsible for the "heavy lifting"—designing the distributed systems that power real-time speech-to-speech pipelines, orchestrating agentic workflows via MCP, and ensuring our AI scales without breaking a sweat.

Main responsibilities:

• Design, build, and maintain CI/CD pipelines in collaboration with development teams
• Improve and gradually redesign our infrastructure toward container orchestration
• Maintain and optimize Debian-based Linux systems
• Ensure high availability and monitoring across multiple data centers
• Contribute to observability, monitoring, logging, and incident response practices
• Automate infrastructure provisioning and configuration
• Maintain ISO security standards throughout the infrastructure 
• Handle vulnerabilities, ensure dependency tracking
• Work closely with developers to optimize deployment workflows and runtime environments
• Use AI tooling effectively (Claude, ChatGPT, internal MCP tools) to improve productivity and automation
• Architect Low-Latency Pipelines: Build and optimize the streaming infrastructure for Speech-to-Speech (S2S), ensuring sub-500ms round-trip latency for natural voice interactions.Experience with scaling and deploying in zones. Minimize hops between services. Experience with WSS & SRTP protocol would be a plus. 
• Hosting Specialized tooling: Host and maintain the specialized applications needed in our AI pipelines (eq. MCP servers, Vector store databases, Caching apps, etc..) Monitor and respond to unhealthy patterns (high memory, high cpu, low disk space, high latency).
• Data & Evaluation Plumbing: Host and maintain our Automated QA Module. Schedule jobs and design alerts that would need a rapid response (High hallucinations or low response quality for latest nightly run, etc..)

We are looking for some of:

• Strong Linux administration experience, preferably Debian-based systems
• Hands-on experience with Kubernetes in production environments
• Experience with cloud native architectures (design, build, operations)
• Solid understanding of networking fundamentals:
• Subnetting
• Routing
• BGP concepts and high-availability design
• Experience with CI/CD systems and infrastructure automation tools
• Good scripting skills (Bash, Python or similar)
• Ability to troubleshoot distributed systems
• Systems Expertise: DevOps knowledge: Docker or Docker Swarm, Kubernetes, ArgoCD, JFrog Artifactory, Infrastructure-as-Code, CI/CD, Helm, Prometheus, Terraform, Gitlab/Github CI, Grafana, Jenkins
• Familiar with monitoring stack: Prometheus/Grafana (Metrics), ELK (Logs) & Jaeger (Trace) etc.
• Best practices on how to secure systems and pipelines: OpenID Connect, OAuth 2, Hashicorp Vault, Keycloak, Keepass, Ansible-vault

Would be a plus:

• Experience with telephony gateways (Twilio, Amazon Connect) and SIP/RTP protocols  or other telephony platforms
• Experience migrating from VM-based infrastructure to container orchestration
• Exposure to AI-driven development workflows

What we offer:

• Access to local/international trainings, development and growth opportunities, including access to e-learning platforms, covering both technical and soft skills areas;
• Modern technologies, product responsibility;
• Flexible work schedule;
• Hybrid work option;
• Medical services package from one of two private providers;
• 25 vacation days per year;
• Substitute days off for public holidays that occur on the weekend;
• Meal tickets;
• Internal referral program;
• Team events, networking events organized to promote a passionate, creative and diverse culture;
• Summerfest and Winterfest parties;
• Of course, coffee, soft drinks and fresh fruits are on us in the office.

About the team:

Our OPS and Support team is distributed across three main locations – Munich, Regensburg, and Bucharest – and collaborates closely with other teams across the IONOS Group. We manage a diverse and modern tech stack, including Kubernetes, Proxmox, Ansible, and databases like MySQL, PostgreSQL, and MongoDB. We value collaboration, automation, and continuous improvement.

About the role:

We’re looking for a forward-thinking leader to oversee our internal platform operations and guide a dedicated team of professionals. In this role, you’ll blend hands-on technical expertise with leadership skills to manage a range of open-source solutions, including Unix/Linux-based systems, databases (MySQL, PostgreSQL, Cassandra), Kubernetes clusters and Kafka. You’ll also collaborate closely with external partners and customers, coordinating on-call rotations to maintain 24/7 service availability. If you’re passionate about fostering a culture of innovation, reliability, and open-source excellence, this position offers the opportunity to shape the future of our domain-focused business.

Main responsibilities:

Leadership & Team Culture

• Provide technical and disciplinary guidance to a committed platform and support team.
• Encourage engagement, growth, and accountability through regular feedback and goal-setting.
• Promote a mindset of continuous improvement throughout all processes.

Operations & Automation

• Ensure stable, secure, and high-performing operations across various Unix/Linux-based systems.
• Refine provisioning and configuration processes (e.g., Ansible) to boost efficiency and minimize manual interventions.
• Manage and scale Kubernetes clusters, and coordinate with open-source tools like Kafka to balance stability, cost, and performance.

Database Administration & Innovation

• Monitor and optimize databases (MySQL, PostgreSQL, Cassandra), including performance tuning, backups, and failover strategies.
• Evaluate emerging technologies and solutions to improve performance, availability, and scalability within an open-source ecosystem.

On-Call Coordination & Incident Response

• Design an effective on-call model to guarantee around-the-clock coverage.
• Act as the escalation point for critical incidents, leading swift mitigation in close collaboration with external partners or customers.
• Establish clear responsibilities and communication paths for rapid issue resolution.

Strategic Collaboration

• Work closely with cross-functional teams (DevOps, Product Management, Leadership) to align platform operations with core business objectives.
• Provide regular updates on system performance, project milestones, and resource requirements.
• Initiate cross-departmental projects to streamline workflows, encourage innovation, and strengthen collaboration throughout the organisation.

Requirements:

Leadership Experience: Proven track record in guiding or coordinating technical teams.

Technical Expertise: Strong background in Unix/Linux administration, open-source automation tools (e.g., Ansible), Kubernetes, and databases (MySQL, PostgreSQL, Cassandra). Experience with Kafka and similar technologies is highly beneficial.

Problem-Solving Skills: Skilled at diagnosing, prioritizing, and resolving complex operational issues under pressure.

Communication Strength: Able to convey technical topics effectively to both technical and non-technical stakeholders, including external partners or customers.

Continuous Learning: A passion for staying up-to-date with evolving open-source technologies and industry best practices.

Tech stack:

Our tech stack is diverse and modern — during your work with us, you’ll have the opportunity to learn and grow with technologies such as Debian Linux, SmartOS, Kubernetes, Proxmox, KVM, VMware, Ansible, GitLab CI/CD, MySQL, Percona Cluster, PostgreSQL, MongoDB, Kafka, HAProxy, ProxySQL, Pacemaker, Heartbeat, Keepalived, PowerDNS, Prometheus, Grafana, Nagios, OpenVPN, pfSense, and networking components like routing, VLANs, and BGP.

What we offer:

• Access to local/international trainings, development and growth opportunities, including access to e-learning platforms, covering both technical and soft skills areas;
• Modern technologies, product responsibility;
• Flexible work schedule;
• Hybrid work option;
• Medical services package from one of two private providers;
• 25 vacation days per year;
• Substitute days off for public holidays that occur on the weekend;
• Meal tickets;
• Internal referral program;
• Team events, networking events organized to promote a passionate, creative and diverse culture;
• Summerfest and Winterfest parties;
• Of course, coffee, soft drinks and fresh fruits are on us in the office.

We are seeking for a talented Full Stack Developer to join our growing development team.

The ideal candidate is experienced in both frontend and backend technologies and is passionate about building high-quality, scalable applications.

You’ll collaborate with designers, product managers, and fellow engineers to create innovative software solutions that drive value for our users.

Responsibilities: