Senior Platform Engineer

Guidehouse•Rockville, MD

1d•Onsite

About The Position

Guidehouse is seeking a Senior Platform Engineer to build and maintain a self-service application delivery platform for AWS workloads. This role involves designing reusable Jenkins shared libraries and pipeline standards, creating Terraform module stacks for various AWS services, and defining application contracts for development teams. The engineer will implement promotion workflows, approvals, drift prevention, and environment separation, while partnering with developers, security, and operations to deliver secure golden paths. Key responsibilities include designing and developing end-to-end Jenkins pipelines, building Terraform modules, supporting ECS Fargate and related AWS capabilities, standardizing workflows, establishing Terraform state management, and creating documentation. The role also focuses on improving reliability, observability, security, and cost efficiency of the platform.

Requirements

Must be able to OBTAIN and MAINTAIN a Federal or DoD "PUBLIC TRUST"; candidates must obtain approved adjudication of their PUBLIC TRUST prior to onboarding with Guidehouse.
Bachelor’s degree or additional FOUR (4) years experience in Lieu of degree
Minimum of SEVEN (7) years Platform Development experience
Strong AWS experience, especially ECS, IAM, S3, SQS, Lambda, VPC, and CloudWatch.
Hands-on Terraform experience, including module design and backend/state management.
Jenkins pipeline expertise, preferably shared libraries and multibranch pipelines.
Experience creating reusable platform abstractions for multiple services.
Good scripting ability in Bash or Python.
Understanding of SDLC, deployment strategies, and release governance.

Nice To Haves

Experience designing IDP (Internal developer platforms).
Experience with Spring Boot or containerized Java services.
Experience with approval gates, policy enforcement, and environment promotion.
Experience with multi-account AWS design.
Familiarity with event-driven architectures and asynchronous patterns.
Experience onboarding application teams to shared tooling.
Experience supporting ServiceNow-based low-code applications.

Responsibilities

Build and maintain a self-service application delivery platform for AWS workloads.
Design reusable Jenkins shared libraries and pipeline standards.
Create Terraform module stacks for ECS, S3, SQS, Lambda, IAM, and related AWS services.
Define the YAML-based application contract used by application teams.
Implement promotion workflows, approvals, drift prevention, and environment separation.
Partner with developers, security, and operations to deliver secure golden paths.
Design and develop end-to-end Jenkins Declarative and Scripted pipelines using Groovy to automate seamless code promotion from development through to production environments.
Build Terraform modules and root-module compositions for multi-service applications.
Support ECS Fargate and optional AWS capabilities such as S3, SQS, Lambda, IAM.
Standardize build, test, deploy, and approval workflows.
Establish Terraform state and environment management practices.
Create documentation, templates, and onboarding guides for application teams.
Improve reliability, observability, security, and cost efficiency.

Benefits

Medical, Rx, Dental & Vision Insurance
Personal and Family Sick Time & Company Paid Holidays
Parental Leave
401(k) Retirement Plan
Group Term Life and Travel Assistance
Voluntary Life and AD&D Insurance
Health Savings Account, Health Care & Dependent Care Flexible Spending Accounts
Transit and Parking Commuter Benefits
Short-Term & Long-Term Disability
Tuition Reimbursement, Personal Development, Certifications & Learning Opportunities
Employee Referral Program
Corporate Sponsored Events & Community Outreach
Care.com annual membership
Employee Assistance Program
Supplemental Benefits via Corestream (Critical Care, Hospital Indemnity, Accident Insurance, Legal Assistance and ID theft protection, etc.)
Position may be eligible for a discretionary variable incentive bonus