Software Development Engineer Sde Jobs in Denver, CO

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We're obsessed with making hard work pay off, for our people, our customers, and the world around us. As a Fortune 500 company and a leading AI platform for managing people, money, and agents, we're shaping the future of work so teams can reach their potential and focus on what matters most. The minute you join, you'll feel it. Not just in the products we build, but in how we show up for each other. Our culture is rooted in integrity, empathy, and shared enthusiasm. We're in this together, tackling big challenges with bold ideas and genuine care. We look for curious minds and courageous collaborators who bring sun-drenched optimism and drive. Whether you're building smarter solutions, supporting customers, or creating a space where everyone belongs, you'll do meaningful work with Workmates who've got your back. In return, we'll give you the trust to take risks, the tools to grow, the skills to develop and the support of a company invested in you for the long haul. So, if you want to inspire a brighter work day for everyone, including yourself, you've found a match in Workday, and we hope to be a match for you too.
About the Team
The Agent Runtime team develops Workday's secure runtime for enterprise AI agents. The platform provides deterministic policy enforcement, least-privilege execution, and auditable control points for trustworthy AI workflows.
We build foundational runtime components and work across platform and ML partner teams to support secure execution at enterprise scale.
About the Role
As a Software Development Engineer on Agent Runtime, you will build and own the AWS infrastructure foundation the platform runs on: dedicated accounts, IAM roles and trust boundaries, VPC/networking design, and the infrastructure-as-code that provisions all of it. This role is focused on cloud infrastructure rather than application development - someone who wants to build the account structure, IAM model, and network topology a security-sensitive, enterprise-scale AI platform depends on.
In this role, you will:

• Design and provision dedicated AWS accounts (build, dev runtime, prod runtime) with proper account structure, guardrails, and compliance requirements (including FIPS) built in from day one.
• Build and own Terraform modules covering IAM roles/policies, VPC and network design (subnets, routing, security groups, egress control), and account-level guardrails, so that provisioning is repeatable and reviewable rather than manual.
• Support the infrastructure behind our serverless agent execution environment - provisioning and deprovisioning the runtime environments agents execute in.
• Design least-privilege IAM roles and cross-account access patterns for our gateway service and build pipeline, including secure service-to-service authentication.
• Partner directly with security/compliance teams on account guardrails, FIPS requirements, and audit readiness - this role is a primary point of contact for those conversations, not a downstream consumer of someone else's decisions.
• Register and manage new accounts/services through Workday's internal account-governance process (Venice).
• Collaborate with platform engineers on open infrastructure questions - service hosting model, egress authentication design, network topology between the gateway and downstream services - and bring a strong point of view grounded in AWS best practice.
• Build monitoring and alerting for infrastructure health, and participate in code/design reviews for infrastructure changes.

About You
Basic Qualification:
5+ years of experience in cloud infrastructure, DevOps, or platform engineering, with hands-on ownership of production AWS environments.
Other Qualifications:

• Deep, hands-on experience authoring and maintaining Terraform (or comparable IaC tooling) for production infrastructure - not just consuming existing modules.
• Strong AWS fundamentals: IAM (roles, policies, cross-account trust relationships), VPC design (subnets, routing, security groups, PrivateLink/peering), and AWS account structure/Organizations.
• Experience with serverless compute (Lambda, Fargate, or similar) - provisioning, scaling, and operating it in production.
• Experience standing up new AWS accounts/environments from a clean slate, including navigating compliance requirements (FIPS or comparable regulatory/security standards).
• Working knowledge of security fundamentals: least-privilege access design, secrets management, network segmentation, and secure service-to-service authentication.
• Familiarity with GitOps-style infrastructure delivery (e.g., ArgoCD, Crossplane) is a plus.
• Experience integrating infrastructure provisioning into CI/CD or build/deploy pipelines.
• Ability to debug complex infrastructure and networking issues under production conditions.
• Strong written and verbal communication skills - this role documents infrastructure decisions that other engineers and security/compliance stakeholders depend on directly.

Workday Pay Transparency Statement
The annualized base salary ranges for the primary location and any additional locations are listed below. Workday pay ranges vary based on work location. As a part of the total compensation package, this role may be eligible for the Workday Bonus Plan or a role-specific commission/bonus, as well as annual refresh stock grants. Recruiters can share more detail during the hiring process. Each candidate's compensation offer will be based on multiple factors including, but not limited to, geography, experience, skills, job duties, and business need, among other things. For more information regarding Workday's comprehensive benefits, please click here.
Primary Location: USA.CO.Boulder
Primary Location Base Pay Range: $130,400 USD - $195,600 USD
Additional US Location(s) Base Pay Range: $123,900 USD - $222,000 USD
Additional Considerations:
The application deadline for this role is the same as the posting end date stated as below:
08/25/2026
Our Approach to Flexible Work
With Flex Work, we're combining the best of both worlds: in-person time and remote. Our approach enables our teams to deepen connections, maintain a strong community, and do their best work. We know that flexibility can take shape in many ways, so rather than a number of required days in-office each week, we simply spend at least half (50%) of our time each quarter in the office or in the field with our customers, prospects, and partners (depending on role). This means you'll have the freedom to create a flexible schedule that caters to your business, team, and personal needs, while being intentional to make the most of time spent together. Those in our remote "home office" roles also have the opportunity to come together in our offices for important moments that matter.
Pursuant to applicable Fair Chance law, Workday will consider for employment qualified applicants with arrest and conviction records.
Workday is an Equal Opportunity Employer including individuals with disabilities and protected veterans.
Workday is committed to providing reasonable accommodations for qualified individuals during our application process, in order to perform one or more essential functions of their job, as well as regarding the use of AI tools for employment decision-making to any degree. Please see below for more details including how to request an accommodation as a qualified veteran, due to a disability or for religious reasons, or as otherwise provided under applicable law.
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If you require a reasonable accommodation, you may email accommodations@workday.com, as far in advance as possible.
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