DevOps Engineer (m/f/d)

Hello 👋 I am Servesh, Co- founder and CTO at Kayzen, and I am now looking for a DevOps Engineer who will be part of our Engineering team. 🙌 But wait, you have not heard of Kayzen before? 😃

Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.

The Platform Engineering team owns Real-time bidding (RTB) platform, a Real-time budget system, Real-time event processing, Stream data processing engine and multiple other complex large-scale distributed components and data pipelines. We work closely with data scientists, data analysts, product and business teams. We are responsible for some of the most technically challenging work, for example:

• Handling ~2 Million Req/sec in sub-millisecond latency
• Handing & managing ~Petabytes of data
• Managing distributed systems deployed across multiple data centers
• Optimizing JVM and Linux kernel for optimal performance
• Managing our own data center spread across the globe consisting of thousand of powerful servers
• Working on some of the most challenging problems of Ad-Tech

Sounds interesting. Isn't it?

We are looking for a DevOps Engineer to build and scale the backbone of our global RTB platform. You will move beyond manual server management to engineer automated, self-healing infrastructure that handles petabytes of data with sub-millisecond latency. This role is about treating our private data centers like a programmable cloud.

• Develop and maintain automated provisioning pipelines (PXE, ZTP) to deploy bare-metal servers ( configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements) at scale across global data centers.
• You research and recommend innovative and automated approaches for system administration tasks.

• You perform regular security monitoring to identify any possible intrusions.
• You repair and recover from hardware or software failures, coordinating with impacted teams.

• You apply OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities.
• You maintain data center environmental and monitoring equipment.
• You perform ongoing performance tuning, hardware upgrades, and resource optimization as required.

• You are flexible to work in rotational shifts as part of the incidence response team.
• You have a Bachelor degree, with a technical major, such as engineering or computer science.
• You have good knowledge of coding with Shell and Python/Java and SQL commands.
• Hands-on experience with Terraform or Ansible or Puppet/Chef for managing bare-metal configurations and automations.
• Strong understanding of L4/L7 load balancing (HAProxy/Nginx) and network performance tuning (TCP/IP stack optimization).
• You have 8+ years of system administration/debugging experience, scripting and related tools.
• You have good knowledge on pipeline/orchestration tools like Jenkins/Ariflow and similar platforms  as mandatory. 
• You have good knowledge on Observability platform experience (Prometheus, Grafana, InfluxDB) as mandatory
• You have good knowledge of Kubernetes will be an added advantage.
• You have systems Administration/System Engineer certification in Unix will be an added advantage.