Senior Platform Engineer

Job Description
Tremend is looking for a Cybersecurity Engineer to join our team of bright thinkers and doers. You’ll use your problem-solving creativity to figure out our client’s most complex and challenging problems across different industries. We are on a mission to transform the world, and you will be instrumental in shaping how we do it with your ideas, thoughts, and solutions.

Your Impact:

• Conduct comprehensive vulnerability assessments and penetration tests of systems, networks, and applications
• Identify and analyze potential security vulnerabilities and risks and develop risk mitigation strategies
• Implementing and maintaining security controls such as firewalls, intrusion detection systems, and data encryption
• Monitor network traffic and system logs for possible security breaches and unauthorized access
• Collaborate with cross-functional teams to develop and implement security policies, procedures, and best practices
• Stay up to date with the latest cybersecurity trends, threats, and technologies
• Respond to and investigate security incidents to ensure timely incident response and resolution
• Conduct security audits and assessments to ensure compliance with industry standards and regulations.

Your Skills & Experience:

• 6+ years of experience in one of the following: security engineer, network engineer, or DevOps background preferred
• Hands-on security experience: at least previous experience in designing and implementing security measures
• Proactive approach, analytical mindset, and willingness to own and drive topics with full autonomy
• Familiar with risk assessment and management methodologies
• Familiar with security audits, certifications, and/or compliance
• Experience in public cloud infrastructure security (Azure or GCP) and DevOps practices.
• Experience with Splunk or equivalent tools
• Experience in vulnerability management programs
• Experience in ethical hacking and penetration testing is a plus.
• Hands-on experience in networking and Kubernetes is a plus.

Set Yourself Apart With:

• Knowledge of security architecture and best practices
• Strong understanding of cloud platforms (Azure, GCP, AWS) and their security implications
• Solid knowledge of networking principles, protocols, and infrastructure security.

Additional Information
Besides an exciting job in a tremendous team, here s what you can expect:

• A fast-paced tech environment
• Continuous growth & learning
• Open feedback culture
• Room for own initiative & ideas
• Transparency about results & strategy
• Recognition & reward for hard work
• Working with a flexible schedule
• Medical subscription
• Meal tickets
• Extra vacation days - starting with 25 vacation days
• Many others perks

Company Description
Tremend is the newest global software engineering hub for Publicis Sapient. For over 20 years, the company has been infusing its advanced technical expertise into complex and innovative solutions that meet today s digital transformation needs and pave the way for a better and smarter future. By joining forces with Publicis Sapient we re accelerating the impact, providing a good mix of talented engineers, technology, continuous improvement, innovation, and R&D. Here, you ll have the opportunity to unleash your potential, powering up advanced software solutions for some of the world s most iconic brands. Embrace your passion for technology, creativity, and continuous improvement, and join us in making a difference through engineering.

In partnership with our client, we are looking for a Core Infrastructure Engineer. Our client is a global manufacturing company specializing in innovative and sustainable flooring and sports surface solutions, with operations across more than 100 countries worldwide. The company’s IT environment supports a complex international organization, and this role provides an opportunity to contribute to the stability, improvement, and evolution of enterprise infrastructure services.

About the role

As a Core Infrastructure Engineer, you will be responsible for maintaining, optimizing, and improving core infrastructure services, ensuring their operational stability, performance, and security. You will take ownership of specific technical areas, contribute to infrastructure projects, and support continuous improvement initiatives within a global IT environment.

Key responsibilities

Technology

• Demonstrates full understanding of CoE Core Infra responsibilities:
• Participates in project tasks with autonomy and responsibility
• Maintains and optimizes operational processes
• Leads efforts to industrialize routine operations
• Focuses on and provides improvement of Service Level Agreements (SLAs)
• Automates recurring tasks and enhances operational efficiency
• Actively contributes to cloud adoption projects
• Actively learns and adapts to new developments in cloud technology

Cutting legacy tails

• Strong involvement in legacy technology decommissioning

Methods

• Industrializes operational processes:
• Monitors SLAs, dashboards, KPIs, incident health, and usage reports
• Prepares weekly and monthly status reports
• Standardizes project activities using CoE methodology, templates, and reporting
• Creates clear and up-to-date documentation, procedures, and internal communications
• Collaborates and exchanges knowledge with Center of Excellence peers
• Applies continuous improvement practices

Activities

• Works on tickets, tasks, and project deliverables
• Participates in the Core Infra Good Morning Check (GMC)
• Takes part in the on-call duty rotations, as agreed with the manager

Education & Experience

• University degree or equivalent professional knowledge
• Over 3 years of experience in IT infrastructure roles
• International experience desirable
• Proficiency in Serbian and English

Technical Skills

Ownership of one or more topics within the areas below:

• Datacenter technologies
• Virtualization platforms
• Server OS (installation, configuration, patching, monitoring)
• Application support
• Database administration
• AD / Entra ID integration and administration
• User lifecycle processes
• Cloud resource and cost management
• Scripting (e.g. PowerShell, Bash)
• Enterprise backup and storage systems
• Linux administration
• Hardware and server maintenance

Only shortlisted candidates will be considered.

We're BlueCat—a Great Place to Work for good reason. Our team solves critical network challenges for some of the world's largest organizations. In simple terms, we manage the systems that keep networks running smoothly, securely, and reliably—the backbone infrastructure that powers digital transformation for enterprises globally. Our Intelligent Network Operations platform delivers and enables AI-driven agentic ops at scale, automating and simplifying how companies manage, secure, and optimize their networks.

But what makes us different is how we work: we believe great work happens in an environment where you're trusted, heard, and supported. With teams globally, we're building a workplace culture that values collaboration and integrity as much as innovation. If you're looking to advance your career with a company that invests in its people, this is it.

About the Team

The BlueCat Horizon team powers all BlueCat SaaS products. Our mission is to deliver enterprise-grade software on a reliable, fast, globally distributed, and cost-efficient cloud platform. We are building an AI-first platform, where agentic systems run as core production workloads on
Kubernetes (EKS) and AWS AgentCore.

About the Role

We are looking for a Site Reliability Engineer to help make our AI agent platform production-ready, secure, observable, and scalable. This role focuses on operating, automating, and hardening systems built by development teams, ensuring experimental AI capabilities are reliably delivered as enterprise-grade production services. You will work across platform engineering, infrastructure, and development teams to improve reliability, automation, and delivery speed.

What You’ll Do

• Operate and scale Kubernetes (EKS) clusters running AI and cloud-native workloads
• Support productionization of AWS AgentCore-based systems
• Design, build, and maintain CI/CD pipelines using GitLab CI/CD for applications and platform services
• Build and improve automated deployment workflows across environments
• Implement and maintain observability systems (metrics, logs, traces)
• Define and enforce SRE practices: SLIs, SLOs, alerting, incident response, postmortems
• Partner with development teams to ensure services are production-ready and operable
• Participate in on-call rotation and support incident resolution and root cause analysis
• Build infrastructure using Terraform for repeatable deployments
• Improve cost efficiency, performance, and reliability of the platform

What You Bring

• 5+ years of experience in SRE, DevOps, or Platform Engineering
• Strong hands-on experience with AWS and Kubernetes (EKS)
• Experience operating or supporting AWS AgentCore or similar AI/agent platforms
• Strong proficiency in Python for automation
• Solid understanding of AWS identity and access management (IAM), including SSO/Identity Center, roles, policies, trust relationships, SCPs, and cross-account access patterns
• Experience with Infrastructure as Code (Terraform preferred)
• Strong understanding of CI/CD using GitLab CI/CD
• Ability to quickly onboard into existing AWS environments and operate independently
• Experience working with on-call and incident management in production systems

Nice to Have

• Experience with AI/LLM or agent-based systems
• Running stateful workloads on Kubernetes (PostgreSQL, Redis, etc.)
• Knowledge of RAG, vector databases, or knowledge systems
• Multi-region AWS architecture experience
• Cost optimization and capacity planning experience

If you share our enthusiasm for the future of our company and are eager to contribute to our vibrant workplace, we look forward to receiving your application! Our comprehensive benefits encompass your health, financial well-being, and overall wellness, and we are committed to providing an exceptional work environment, enriching employee programs, and fostering a remarkable company culture. At our core, we champion values such as transparency, curiosity, respect, and above all, the pursuit of enjoyment.

In addition, we offer a range of appealing perks, including:

A Professional Development Budget

Dedicated Wellness Days and Wellness Week

A Lifestyle Spending Account

An Employee Recognition Program

Join us in shaping the future of our organization, where your talent and dedication can truly thrive. We invite you to apply and become a valuable member of our team!

BlueCat is an Equal Opportunity Employer that is committed to inclusion and diversity. We also take affirmative action to offer employment and advancement opportunities to all applicants, including minorities, women, protected veterans, and individuals with disabilities. BlueCat will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation or that of other applicants.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

At Ball, integrity and trust are the foundation of who we are. Guided by our core values—"We Care. We Work. We Win.”—we create a culture where every voice matters and every idea drives progress.

Further your career at Ball, a world leader in manufacturing sustainable aluminium packaging. Achieve extraordinary things when you join our team, and make a difference in your professional development, the community, and around the globe!

Create a new future. Apply Today.

Position Overview
As the Security Engineer you will be responsible for implementing, maintaining, and continuously improving security controls and platforms that protect the organization’s enterprise environments. This hands-on role transforms security architecture standards into operational capabilities across cloud, infrastructure, application, and data protection domains, supporting business operations, digital transformation initiatives, and overall cybersecurity resilience. The position partners closely with cybersecurity, IT, and engineering teams to ensure security solutions are effective, scalable, and aligned with business needs.

Key Responsibilities Include

• Implement and support security solutions across cloud security, infrastructure security, data protection, application security/DevSecOps, and security platform engineering domains.
• Build, configure, integrate, and optimize security tools and controls to ensure operational effectiveness, scalability, and measurable outcomes.
• Support security architecture and risk review activities by providing technical expertise and implementing required security controls.
• Implement application security controls and DevSecOps practices within CI/CD pipelines and software delivery processes.
• Develop and maintain engineering baselines, hardening standards, and configuration benchmarks to improve consistency and reduce security risk.
• Automate security controls and processes using scripting and infrastructure-as-code (IaC) methodologies in cloud and hybrid environments.
• Create and maintain technical documentation, engineering runbooks, and standards to support reliable operations and repeatable delivery.
• Collaborate with Cyber Defense Operations teams to ensure security controls generate the telemetry and logging required for monitoring, detection, and response activities.
• Support the global deployment and maintenance of security engineering solutions while accommodating regional operational requirements.
• Partner with IT and technology teams to support implementation planning, troubleshooting, and operational readiness across the organization.
• Promote consistent implementation of security controls and support governance processes related to approved exceptions and risk management.

What are we looking for?

• Bachelor’s degree in Computer Science, Information Security, Engineering, or a related technical field.
• Minimum 4 years of experience in security engineering, infrastructure engineering, cloud engineering, or similar technical roles with hands-on implementation responsibilities.
• Experience designing, deploying, and operating security controls in cloud-native and hybrid enterprise environments.
• Relevant cybersecurity certifications are considered an advantage.
• Strong engineering mindset with the ability to translate requirements into practical, scalable security solutions.
• Proficiency in multiple security domains, such as cloud security, infrastructure security, application security/DevSecOps, or data protection.
• Ability to communicate technical security requirements, risks, and recommendations effectively to technical and non-technical stakeholders.
• Strong problem-solving, documentation, and operational planning skills with a focus on quality and continuous improvement.
• Knowledge of security engineering best practices, secure configuration standards, infrastructure-as-code, security automation, and enterprise security controls.
• Understanding of how security controls integrate with monitoring, detection, incident response, and broader operational resilience objectives.
• Fluent English language skills.

If you have a disability and/or long-term health condition that impacts on your ability to access any of the information outlined in the job application process, please do not hesitate in letting us know, so that we can endeavour to provide it you in the most accessible format. please email
jobs.emea@ball.com
with your access request and somebody will respond to you within 3 business days.

Ball Corporation is an Equal Opportunity Employer. We actively encourage applications from everybody, regardless of gender, age, ethnicity, faith, ability, or orientation. Our products range from infinitely recyclable aluminium cans, cups to aerosol bottles solutions that enable our customers to contribute to a better world.

Each of us has a deep commitment to diversity and inclusion which is the foundation of our culture of belonging. Everyone at Ball is making a difference by doing what we love. Because what we create may change, but what we will always make is a difference.

Please note the advertised job title might vary from the job title on the contract due to local job title structure and global HR systems.

No agencies please.