Design, provision, and secure AWS cloud environments for large-scale data platforms. Implement networking, Lake Formation, CI/CD, cross-account connectivity, monitoring, governance, RBAC/TBAC, encryption, and automated IaC. Produce architecture documentation, runbooks, and collaborate in Agile squads supporting regulated, classified environments.
About OneByZero
OneByZero is a Frontier Systems Integrator building agentic AI systems for leading banks, telcos, insurers, and retailers across Asia Pacific. We work on mission-critical problems for organizations operating the region's financial and digital infrastructure. Operating exclusively on AWS, we combine deep technical expertise with strong partnership programs that enable innovation, scale, and delivery excellence. We build with people who are technically serious, outcome-focused, and passionate about solving complex enterprise challenges.
The Role
We are seeking an experienced Cloud Infrastructure Engineer to design, implement, and secure AWS cloud environments supporting large-scale data platforms. The role will focus on infrastructure provisioning, networking, security, automation, and governance within highly regulated environments.
Note: Resources for this role are required to be onshore due to the classified nature of the environment.
- Design and provision AWS environments including VPCs, subnets, security groups, network ACLs, IAM roles, and encryption services.
- Implement and manage AWS Lake Formation infrastructure, data catalogs, permissions, and cross-account resource sharing.
- Build and maintain CI/CD pipelines integrated with SHIP-HATS and enterprise deployment frameworks.
- Configure secure cross-agency connectivity using VPC Peering, Transit Gateway, and AWS PrivateLink.
- Develop monitoring and governance capabilities using Amazon CloudWatch, AWS CloudTrail, and AWS Config.
- Implement role-based access control (RBAC), tag-based access control (TBAC), and fine-grained permissions frameworks.
- Provision and maintain development, testing, and pre-production environments aligned with production architecture.
- Implement security best practices including encryption at rest, encryption in transit, VPC endpoints, and secure access controls.
- Collaborate with technical leadership on reusable infrastructure patterns and deployment standards.
- Produce architecture documentation, infrastructure diagrams, operational runbooks, and code repositories.
- Participate in Agile ceremonies, sprint demos, and infrastructure design reviews.
RequirementsRequired Skills & Experience
- 5+ years of experience in Cloud Infrastructure Engineering or Cloud Platform Engineering.
- Strong expertise in AWS networking including VPCs, Transit Gateway, PrivateLink, Security Groups, and IAM.
- Hands-on experience with Terraform, AWS CDK, or CloudFormation.
- Experience building and managing CI/CD pipelines using GitLab CI, AWS CodePipeline, or similar tools.
- Strong understanding of Linux administration and cloud security best practices.
- Experience implementing encryption, governance, and compliance controls in enterprise environments.
- Knowledge of Infrastructure as Code (IaC), automation, and cloud operational excellence principles.
- Hands-on experience with SHIP-HATS (highly preferred).
- Experience with AWS Lake Formation cross-account architecture.
- Experience with Transit Gateway and large-scale multi-account AWS environments.
- Prior experience supporting Government Agencies, IMDA, or Public Sector cloud programs.
- Bachelor's degree in Computer Science, Information Technology, Engineering, or a related discipline.
Benefits
What We Offer
Competitive compensation benchmarked to market. The opportunity to work on AI transformation programmes that matter to the institutions millions of people in Asia Pacific depend on. A team that spans 10 markets, brings together some of the most experienced AI, data, and enterprise technology practitioners in the region, and moves fast without losing quality. Access to the AWS partnership programmes and frontier AI tooling that most firms in this region do not have. A firm that is building something genuinely new, with a leadership team that has scaled and delivered before.
OneByZero is an equal opportunity employer. We are committed to building a diverse and inclusive team and welcome applications from candidates of all backgrounds.
Why OneByZero
Agentic AI in regulated enterprise is the hardest version of this problem. The clients are the institutions that run the financial infrastructure of Asia Pacific. The constraints are real. The stakes are high.
OBZ is one of the few firms in the region doing this work at production scale in regulated industries, with an AWS partnership that puts you at the frontier of what is deployable. You will build systems that matter, work in squads small enough that your contribution is visible, and use AI coworkers as a genuine force multiplier.
If you are at the start of your career and want to be shaped by the hardest agentic engineering problems in the region, this is where that happens. If you are experienced and want to work on problems that are still genuinely unsolved, this is also where that happens.
Note - Only candidates with existing unrestricted work authorization in Singapore will be considered, as visa sponsorship is not available for this position
Similar Jobs
Cloud • Information Technology • Security • Software
Provide pre-sales technical expertise across Southeast Asia: deliver tailored demos, consult on identity and device management, enable partners, assist trial setup, assess readiness for sales cycles, and surface product feedback for improvements.
Top Skills:
Active DirectoryCloud/SaasIdentity And Directory SolutionsJitJumpcloudLdapMdmMfaNetworkingOauthOidcRadiusRmmSAMLScimTotpWebauthn
Cloud • Information Technology • Security • Software • Cybersecurity
Lead rapid-response and proactive reliability work for high-severity, customer-facing incidents. Debug across edge, network, DNS, transport, and customer stacks; own on-call, postmortems, and remediation. Build telemetry, detectors, diagnostic tooling, and automation with Product Engineering. Mentor support teams, define reliability metrics, and ship AI-assisted diagnostics to reduce detection and resolution time.
Top Skills:
BashBgpDistributed TracingDnsElasticsearchGrafanaGreHttp/SIpsecKibanaNtpOspfPythonSmtpSnmpTcpdumpTls/SslWiresharkZero Trust
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Lead portfolio-level commercial strategy for Internal Medicine and Antivirals, prioritizing investments, advising senior leadership, and driving early commercial assessments, business development input, and AI-enabled decision frameworks to maximize portfolio value across development, launch, lifecycle, and external innovation.
What you need to know about the San Francisco Tech Scene
San Francisco and the surrounding Bay Area attracts more startup funding than any other region in the world. Home to Stanford University and UC Berkeley, leading VC firms and several of the world’s most valuable companies, the Bay Area is the place to go for anyone looking to make it big in the tech industry. That said, San Francisco has a lot to offer beyond technology thanks to a thriving art and music scene, excellent food and a short drive to several of the country’s most beautiful recreational areas.
Key Facts About San Francisco Tech
- Number of Tech Workers: 365,500; 13.9% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Google, Apple, Salesforce, Meta
- Key Industries: Artificial intelligence, cloud computing, fintech, consumer technology, software
- Funding Landscape: $50.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Sequoia Capital, Andreessen Horowitz, Bessemer Venture Partners, Greylock Partners, Khosla Ventures, Kleiner Perkins
- Research Centers and Universities: Stanford University; University of California, Berkeley; University of San Francisco; Santa Clara University; Ames Research Center; Center for AI Safety; California Institute for Regenerative Medicine
