Sr. DevOps Engineer
Primary stack
Nice to have's
Job description
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.
Responsibilities
As a Senior DevOps Engineer, you will:
- 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 that ensure every release is predictable and resilient.
- 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, from predictive failure detection to automated root cause analysis and intelligent code quality checks.
- Ensure that Unlimit’s DevOps foundation is modern, adaptable, and ready for the innovations to come.
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 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.
Join Unlimit Team now!
© Cardpay. This job description was sourced from the employer's public career page. TheJob is not the employer — we index the posting and route candidates to the source. All content rights and hiring decisions belong to the employer.
Cardpay is focused on breaking down the many payment barriers that exist when companies are trying to scale their services internationally, or where they are growing new markets or business models. We’re doing this by developing a system that can handle complex, cross border payments and international corporate accounts; deal with regulatory frameworks and even manage pre-paid cards. What is important is that our clients tell us their challenges and we evolve our system to solve them. It’s one system, one solution, one Cardpay world.