[Remote] Principal Platform Engineer

Note: The job is a remote job and is open to candidates in USA. LTS is seeking a Principal Platform Engineer to join a small, senior engineering team applying frontier AI to modernize a decades-old codebase. The role involves owning the architectural shape of the platform on AWS and ensuring security and compliance for federal identity standards while partnering with deployment teams.ResponsibilitiesOwn the architectural shape of the platform — VPC, managed PostgreSQL, serverless compute, object storage, observability, CI/CD, defined as codeOwn the security and compliance shape so federal identity standards (SSO, smart-card, federated identity) plug in cleanly when the platform moves into restricted environments: encryption at rest and in transit, audit logging, identity abstraction, tenant isolation, data residency primitivesOwn architectural portability so deployment in regulated or restricted environments is straightforward when the time comesOwn internal developer experience — logs, traces, deploy speed, the local dev loopBe on call for systems you designed; own the postmortem when things breakTranslate regulatory pressure (FedRAMP, HIPAA, SOC 2, ITAR, or comparable control catalogs) into concrete infrastructure decisionsPartner with downstream deployment teams on the handoff into restricted environmentsSkillsBachelor's degree in Computer Science, Engineering, or a related field, plus 10 years of professional infrastructure or platform engineering experience; equivalent experience may substitute for the degree requirementHas been on call for production systems they personally designed and can talk in detail about an outage they caused, an audit they sat through, or an identity bug they debugged past 4amAbility to work in a fast-paced, collaborative environmentDecade-plus on production cloud platforms; years of experience matter for this role specificallyHands-on AWS depth; strong infrastructure-as-code (CDK or Terraform)Identity and access design — SAML/OIDC, federated identity, identity abstraction patternsHas worked under regulatory pressure (FedRAMP, HIPAA, SOC 2, ITAR, or similar) and can read a control catalog and translate it into infrastructure decisions, even without having driven a full accreditationDesigns for portability — environments other than the one personally operated inHeavy native use of AI tooling: agents in parallel, model as collaboratorStrong observability discipline — logs, traces, deploy speed, the local dev loopDemonstrated experience in a remote work environmentGovCloud, FedRAMP, or restricted-environment deployment experienceMulti-tenant SaaS architectureSovereign cloud, on-prem, or air-gapped deploymentsAccreditation experience — having driven or contributed to a federal authorizationHIPAA/HITECH operational experienceOpen-source contributions in the platform, infrastructure-as-code, or identity spaceBenefitsThe opportunity to support high visibility federal missions in IT and healthcareA culture that values innovation, growth, collaboration, and qualityAccess to cutting-edge tools and technologiesComprehensive benefits for you and your familyA career path that rewards ambition and performanceLTS is committed to offering eligible employees comprehensive benefits that will provide them with options intended to meet their needs and the needs of their family.Company OverviewLTS is an information technology (IT) provider for mission critical systems. It was founded in 2005, and is headquartered in Herndon, Virginia, USA, with a workforce of 51-200 employees. Its website is http://www.lts.com/.