Senior DevOps Engineer

W Group; København; Hybrid; DKK 1,100,000 - 1,500,000; Full time

Benefits offered by this job

24 days paid leave

Additional days off for holidays

Modern equipment

Inspiring environment

Job summary

WhiteBIT is building the future of Web3. We seek a Senior DevOps to own hybrid infrastructure, optimize low-latency trading systems, and drive performance across the stack. You will implement IaC, manage CI/CD pipelines, and partner with quant and network teams to push the platform forward.

The role emphasizes security practices, on-call readiness, and hands-on optimization on Linux, containers, and cloud environments, contributing to a scalable, secure fintech ecosystem.

Qualifications

• 5+ years of hands-on DevOps/SRE experience.
• Strong Linux administration and kernel tuning knowledge.
• Experience with high availability, low latency systems and HPC concepts.
• Proficiency in Docker and Kubernetes.
• Proficient with IaC tools: Ansible, Terraform, Helm.
• Experience with CI/CD and secret management (Vault).
• Security-focused mindset with Kubernetes RBAC and Zero Trust concepts.

Responsibilities

• Hybrid infrastructure administration across bare metal and cloud.
• Monitor and optimize low-latency trading systems and exchange connections.
• Deep Linux OS and hardware tuning for performance.
• Automate deployment/configuration using IaC with reproducibility requirements.
• Build and maintain CI/CD pipelines with performance regression checks.
• Design and operate comprehensive monitoring/logging stacks (Prometheus, Grafana, ELK).
• Collaborate with quant, trading and network teams to optimize full-stack performance.

Skills

Linux

Cloud platforms

Networking

Containerization

IaC

Hardware tuning

Monitoring

Scripting (Bash/Python)

CI/CD

Security (DevSecOps)

Databases

On-call/Incident Response

Tools

Docker

Kubernetes

Ansible

Terraform

Helm

Vault

GitLab CI

Jenkins

ArgoCD

Prometheus

Grafana

ELK

Job description

We are the creators of a new fintech era!

Our mission is to change this world by making blockchain accessible to everyone in everyday life. WhiteBIT is a global team of over 1,200 professionals united by one mission — to shape the new world order in the Web3 era. Each of our employees is fully engaged in this transformative journey.

We work on our blockchain platform, providing maximum transparency and security for more than 8 million users worldwide. Our breakthrough solutions, incredible speed of adaptation to market challenges, and technological superiority are the strengths that take us beyond ordinary companies. Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT and VISA.

The future of Web3 starts with you: join us as a Senior DevOps!

Requirements

• We’re looking for candidates with 5+ years of hands-on experience as a DevOps / SRE and deep expertise in the following technologies:
• Linux: Advanced administration and OS-level tuning — real-time kernels, process scheduling, memory management, cgroups, CPU isolation, and I/O optimization.
• Cloud platforms: Understanding of and experience in building complex systems focused on high availability (HA), low latency and high-performance computing (HPC)
• Networking: Deep understanding of TCP/IP, UDP, multicast, Ethernet, VLANs, and PTP at the wire level. Experience with low-latency network configurations and familiarity with kernel bypass technologies (DPDK, RDMA) is a strong plus.
• Containerization: Deep-dive knowledge of Docker and Kubernetes, including performance trade-offs of containerized workloads and low-overhead deployment patterns.
• IaC: Proven experience with Ansible, Terraform, and Helm in production environments.
• Hardware Performance: Working knowledge of how CPUs, NIC queues, memory, and storage behave under pressure. Hands-on experience with hardware tuning (BIOS configs, CPU isolation strategies, NIC queue management).
• Monitoring: Practical experience with the Prometheus / Grafana stack; ability to build latency-aware dashboards and fire meaningful alerts rather than noise.
• Scripting: Proven track record writing production scripts in Bash and Python. Golang is a significant plus.
• CI/CD: Strong grasp of core CI/CD tools and experience with secret management using Vault.
• Security: Understanding of DevSecOps principles and hands-on experience configuring security policies in Kubernetes (Zero Trust, RBAC, secure code delivery).
• Databases: Solid working knowledge of SQL and/or NoSQL databases under operational conditions.
• On-Call & Incident Response: High sense of ownership for production systems — willing to participate in on-call rotations and available to respond to critical incidents outside business hours when the situation demands.
• Extra Credit / Big Pluses
• Linux: Deep-dive into kernel-level optimization — from syscalls and network card tuning to DPDK or FPGA-based networking.
• Proven experience operating High Availability / Ultra-Low Latency solutions in live trading environments.
• Experience with hybrid infrastructures (on-premise + cloud) — colocations, cross-connects, and proximity hosting.
• Background in building and operating Big Data and Data Analytics platforms.
• Understanding of business processes in the FinTech / Banking / Crypto / HFT sector.
• Proven track record as an SRE with formal SLO / error budget frameworks.
• DevSecOps: Vulnerability detection, enforcing security best practices, and experience with scanning tools (Trivy or Snyk).
• Blockchain / crypto-native background is a bonus.

Responsibilities

• Hybrid Infrastructure (Baremetal and Clouds): Administer Linux servers (Ubuntu, CentOS, RHEL), drive incident resolution, and take end-to-end ownership of system reliability.
• Low-Latency Systems Operations: Proactively monitor, troubleshoot, and tune latency-sensitive trading systems and exchange connections across multiple asset classes. You treat P99 latency as a first-class metric.
• OS & Hardware Tuning: Go deep on the Linux stack — CPU pinning, NUMA topology, IRQ affinity, kernel parameter tuning, NIC offloading, and BIOS-level configurations. If it affects the tick-to-trade path, you own it.
• Infrastructure as Code (IaC): Automate deployment and configuration using Ansible, Terraform, and Helm with performance reproducibility as a hard requirement.
• CI/CD: Build and maintain rock-solid CI/CD pipelines (GitLab CI, Jenkins, ArgoCD) including automated performance regression checks.
• Monitoring & Observability: Design and operate comprehensive monitoring and logging stacks (Prometheus, VictoriaMetrics, Grafana, ELK). Build latency-aware dashboards and alerting — P99/P99.9, jitter, throughput, and error rates.
• High Availability & DRP: Design and implement architectures adhering to HA, scalability, and Disaster Recovery principles — zero regressions while continuously reducing latency.
• Cross-Team Collaboration: Partner with quant, trading, and network engineering teams to squeeze every drop of performance from the full stack — from hardware up to application logic.

Working terms

Immerse yourself in Crypto & Web3:

• Master cutting-edge technologies and become an expert in the most innovative industry.

Work with the Fintech of the Future:

• Develop your skills in digital finance and shape the global market.

Take Your Professionalism to the Next Level:

• Gain unique experience and be part of global transformations.

Drive Innovations:

• Influence the industry and contribute to groundbreaking solutions.

Join a Strong Team:

• Collaborate with top experts worldwide and grow alongside the best.

Work-Life Balance & Well-being:

• Modern equipment.
• Comfortable working conditions, and an inspiring environment to help you thrive.
• 24 calendar days of paid leave.
• Additional days off for national holidays.

With us, you’ll dive into the world of unique blockchain technologies, reshape the crypto landscape, and become an innovator in your field. If you’re ready to take on challenges and join our dynamic team.

Let’s Build the Future Together!

WhiteBIT offers all candidates an equal opportunity to join the team. All hiring decisions are made without regard to race, national origin, gender identity or sexual orientation, age, religion, disability, medical condition, marital status, familial status, veteran status, or any other legally protected characteristic of an individual.

Your privacy matters to us. You can learn more about how we handle yourpersonal data with regard to your application in our Candidate Privacy Notice.