DevOps Engineer II at OnebyZero – Paya Lebar Road | Jobyssey

About OnebyZero

OneByZero is a Frontier Systems Integrator building agentic AI systems for leading banks, telecommunications companies, insurers, and retailers across Asia Pacific. We work on high-impact problems for institutions operating the financial and digital infrastructure of the region.

We operate exclusively on AWS and leverage partnership programmes that provide co-sell reach, funded innovation opportunities, and delivery credibility across multiple markets. We value individuals who are technically strong, delivery-focused, collaborative, and committed to solving complex engineering challenges.

About the Role

We are seeking an experienced and highly skilled Senior DevOps Engineer to lead and enhance our cloud infrastructure and deployment processes. In this role, you will work with cross-functional teams to design, implement, and maintain robust, scalable, and secure infrastructure, primarily on AWS. You will be a key player in automating processes and ensuring smooth operations across development and production environments, while mentoring junior engineers.

What You'll Do & The Impact You'll Have

Architect, design, and implement scalable infrastructure solutions on AWS using best practices.

Lead the automation of infrastructure provisioning using Infrastructure as Code (IaC) tools like Terraform, AWS CDK, or CloudFormation.

Build and manage CI/CD pipelines for continuous integration and continuous delivery using tools like Jenkins, GitLab CI, or AWS CodePipeline.

Monitor, troubleshoot, and optimize performance and reliability of cloud-based environments.

Implement security best practices and ensure that cloud environments are compliant with internal and external standards.

Automate repetitive tasks and processes with scripting in Python, Bash, or other tools.

Manage and optimize resource utilization and cost in AWS environments.

Oversee the administration and management of Linux environments in production and development.

Mentor junior team members and provide guidance on DevOps best practices.

Collaborate with development and operations teams to streamline workflows and improve productivity.

Requirements

What You'll Bring to the Table

Must-Have Skills:

5+ years of hands-on experience in a DevOps Engineer role, or similar positions.

Extensive experience with AWS services (EC2, S3, VPC, Lambda, RDS, etc.)

Strong proficiency in Infrastructure as Code (IaC) using Terraform, AWS CDK, or CloudFormation.

Demonstrated expertise in building, managing, and automating CI/CD pipelines (e.g., GitHub Actions, Jenkins).

Advanced scripting skills in Python and Bash for automation and tool development.

Expertise in Linux system administration (Ubuntu, CentOS, etc.).

Deep understanding of networking, security practices, and monitoring in cloud environments.

Experience with containerization and orchestration tools such as Docker and Kubernetes.

Cloud Platforms: Advanced AWS Cloud expertise (EC2, VPC, S3, Lambda, RDS, CloudFront, etc.)

IaC Tools: Terraform, AWS CDK, CloudFormation

CI/CD Tools: GitHub Actions, Jenkins

Scripting Languages: Python, Bash

Containerization: Docker, Kubernetes

Operating Systems: Linux (Ubuntu, CentOS, etc.)

Version Control: Git, GitHub, GitLab

Monitoring & Logging: CloudWatch, Prometheus, Grafana, ELK Stack (Elasticsearch, Logstash, Kibana)

Security: AWS Identity and Access Management (IAM), security groups, VPC, and encryption best practices

Nice-to-Have Skills:

AWS Certifications (Solutions Architect, Developer, SysOps Administrator, DevOps Engineer).

Experience with serverless technologies such as AWS Lambda and API Gateway.

Expertise with configuration management tools

Strong understanding of microservices architecture and container orchestration with Kubernetes.

Experience with cost optimization in cloud environments.

Familiarity with Agile methodologies and DevOps principles.

Excellent communication and collaboration skills, with experience working in cross-functional teams.

Ability to lead and mentor junior DevOps engineers and collaborate effectively with stakeholders.

Benefits

What We Offer

Competitive compensation aligned to market standards. Opportunities to work on enterprise-scale AI transformation programmes across Asia Pacific. Exposure to advanced AI tooling, AWS partnership ecosystems, and regulated-industry engineering delivery.

OneByZero is an equal opportunity employer committed to building a diverse and inclusive workplace.

Why OneByZero

OneByZero delivers production-scale agentic AI systems within some of the most complex enterprise environments across Asia Pacific. The SDE II role provides the opportunity to own meaningful engineering delivery, sharpen production skills, and grow toward senior technical ownership.

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Requirements

Benefits