Sr. DevOps Engineer

About the Position

Sr. DevOps Engineer

Belgrade

About Unlimit

Unlimit is a global fintech ecosystem built to eliminate financial borders holding businesses back. The company provides the extensive infrastructure needed to scale globally, integrating payment processing, multi-currency business accounts, BaaS and crypto gateways into a single, intelligent platform.

Across 17 offices globally, Unlimit bridges hyper-local expertise with a high-capacity financial network, giving companies the agility to expand across regions with operational confidence and speed. Driving the evolution of payments, Unlimit is transforming its infrastructure from human-operated fintech into AI-native financial infrastructure - where APIs are consumed by machines, integrations are negotiated by agents, and systems evolve continuously through intelligent automation. Our next users are not only humans. They are AI agents acting on behalf of humans and businesses.

Unlimit serves more than the needs of businesses today; we are building the nervous system for a borderless global economy.

We are looking for a Senior DevOps Engineer to lead our DevOps transformation and establish world-class software delivery practices across Unlimit. You will architect enterprise-wide CI/CD strategies, build automation-first solutions, and create the foundation for AI-powered delivery pipelines that will accelerate how we build, test, and deploy the next generation of financial technology products.

Responsibilities

• Lead the effort in establishing best practices, defining standards, and building the platforms that enable our teams to deliver with confidence.
• Architect company-wide CI/CD strategies, design golden pipelines, and implement GitOps-based deployments and progressive delivery methods.
• Embed governance, observability, and guardrails into everything we build-so that our systems are not only automated, but trusted.
• Identify and integrate the right AI-driven capabilities into our delivery lifecycle to ensure that Unlimit’s DevOps foundation is modern, adaptable, and ready for the innovations to come.
• Build from the ground up, setting the standard for how software is delivered, and ensuring that every team-from developers to data scientists-benefits from a robust, future-ready platform.

Requirements

• 4+ years architecting and operating CI/CD systems at scale (e.g., Jenkins, GitLab, GitHub, ArgoCD).
• 3+ years of production experience with:
  • Docker: Multi-stage builds, BuildKit, image optimization, registry management
  • Kubernetes: Deployments, StatefulSets, Jobs, CronJobs, Custom Resources
  • Helm: Chart development, dependency management, testing
  • Service mesh integration (e.g., Istio)
• Expert-level GitOps implementation: Argo CD (ApplicationSets, sync waves, resource hooks) | Flux CD (Kustomize integration, multi-tenancy) | Terraform (module development, state management, drift detection) | Policy-as-Code (OPA, Kyverno).
• 3+ years designing cloud-native CI/CD architectures (AWS required; Azure/GCP a plus).
• Experience with custom metrics, instrumentation, log aggregation, and large-scale monitoring.

Nice to Have

• Experience with eBPF-based observability.
• Certifications such as: AWS DevOps Professional or Azure DevOps Expert | Kubernetes certifications (CKA, CKAD) | Google Cloud Professional DevOps Engineer | Jenkins Certified Engineer.

We Offer

• Attractive monthly salary paid in line with experience
• Vacation, sick, and paid holidays
• Flexible working hours
• Full-time: 5/2
• Modern workplace with all necessary equipment
• A team of top international professionals to learn from
• Multicultural working environment

About the Company

Unlimit is an equal opportunity employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We welcome applications from all members of society irrespective of age, sex, disability, sexual orientation, race, religion or belief.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. 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.

Join Unlimit Team now!