# Senior DevOps Engineer (Fintech) at Big Stars

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Manage, configure and operate Kubernetes

- **Company:** Big Stars (https://jobs.trythestack.co/companies/big-stars)
- **Location:** Serbia
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** AWS, GCP, Kubernetes, Istio, Helm Charts, GitOps, ArgoCD, FluxCD, Terraform, Terragrunt, GitLab CI/CD, Redis, Valkey, Kafka, English Proficiency, PCI DSS
- **Posted by employer:** 2026-07-09
- **Added to The Stack:** 2026-07-10
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://job-boards.eu.greenhouse.io/bigstars/jobs/4923593101 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-devops-engineer-fintech-big-stars

## About the role

Responsibilities:
- Manage, configure and operate Kubernetes clusters in production, including upgrades, scaling and lifecycle tasks
- Author, improve and maintain Helm charts and GitOps workflows (ArgoCD/Flux)
- Build, maintain and optimise CI/CD pipelines (GitLab) and automated deployment processes with rollback strategies
- Provision and manage cloud infrastructure using Terraform/Terragrunt on AWS or GCP; optimise resources and costs
- Operate and ensure high availability for Redis/Valkey and Kafka environments; monitor and resolve incidents
- Collaborate with developers to improve reliability, performance and security; maintain runbooks and documentation

Requirements:
- Strong hands-on experience with AWS (preferred) or GCP and cloud resource optimisation
- Production Kubernetes experience and familiarity with Istio
- Proven ability to write and maintain Helm charts and apply GitOps principles (ArgoCD/Flux)
- Experience with Terraform/Terragrunt and GitLab CI/CD
- Operational experience with Redis (HA) and Kafka
- Advanced English and strong collaboration skills
- Familiarity with PCI DSS and banking security standards is a plus

## Responsibilities

Manage, configure, and deploy Kubernetes clusters while maintaining CI/CD pipelines using GitLab and ArgoCD. Collaborate with developers to enhance production stability, reliability, and system performance.

## Requirements

Requires strong hands-on experience with AWS/GCP, Kubernetes, Istio, and GitOps tools like ArgoCD. Proficiency in Terraform, Helm Charts, and maintaining high-availability Redis and Kafka environments is essential.

## FAQ

- **Is this Senior DevOps Engineer (Fintech) role still open?** It was posted on 2026-07-09. Listings more than 30 days old may no longer be active, so check Big Stars's site before applying.
- **Does Big Stars offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Big Stars's site.
- **Where is this role located?** The listing gives the location as Serbia. It is marked on-site.
- **What skills does this role ask for?** The listing names: AWS, GCP, Kubernetes, Istio, Helm Charts, GitOps, ArgoCD, FluxCD, Terraform, Terragrunt, GitLab CI/CD, Redis, Valkey, Kafka, English Proficiency, PCI DSS.

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## About The Stack

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## Notes for agents

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