Jobs in the United States

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Added 1 min ago
Junior Software Engineer
Lemonedge Technology LTD
Remote, United States
We’re looking for a Junior Software Engineer ready to take ownership of meaningful work, from the first conversation in refinement through development, testing, and production.
Added 2 mins ago
P
Member of Technical Staff (Software Engineer, Cybersecurity Products)
Perplexity
Remote, United States
- $220,000 to $405,000 USD / year
- 4+ years of experience as a software engineer building production systems, with meaningful time spent on security products, security data platforms, or security engineering with heavy…
Added 2 mins ago
Modeling and Simulation Software Integration Engineer, Mid/Senior-Level
Simulation Technologies, Inc.
Huntsville, AL
The M&S Software Integration Engineer, Mid/Senior-Level will support the mission of the Missile Defense Agency (MDA) Engineering Directorate Modeling & Simulation (M&S) Office to test the…
Added 2 mins ago
KC
Associate Test Engineer 2
KLA Corporation
Milpitas, CA
- $28.85 to $49.04 USD / hour
You have experience with systems development and testing, including formulating system level requirements, test specifications and test results.
Added 2 mins ago
Sr. Hardware Engineer
Lucid Motors
Newark, CA
As a Senior Hardware Engineer on Lucid’s Prototype Tooling & Process Design team, you will enable the build, test, and validation of next-generation drive units. You will develop tooling…
Added 3 mins ago
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Staff Software Engineer, Funding
GoodLeap
Roseville, CA · Austin, TX · Plano, TX · San Francisco, CA · West Palm Beach, FL
- $188,300 to $212,900 USD / year
As a Staff Software Engineer, you will lead the architecture, design, and development of solutions in GoodLeap’s Funding domain. This role blends hands-on development with strategic…
Added 3 mins ago
Cloud Infrastructure & System Engineer (In Person, Hybrid Potential)
TBO Bank
Prairie Village, KS
…support a complex technology stack, including custom-developed software powering our lending program, alongside a growing investment in AI-driven tools and processes. We're looking for a…
Added 5 mins ago
Senior Hardware Architect, Health Sensing
ŌURA
San Francisco, CA
Define hardware and software technical specifications and implement test and calibration protocols both internally and at manufacturer sites
Added 5 mins ago
Section Engineer - BGE Substation Design
Baltimore Gas and Electric Company
BALTIMORE, MD
The Section Engineer provides technical leadership in the planning, design, and execution of projects involving BGE/Exelon's electric substations and related systems. This role involves…
Added 5 mins ago
Logistics Engineer II, Cost Model
J.B. Hunt Transport, Inc.
Lowell, AR
Under general supervision, this position utilizes problem solving and quantitative methods to engineer data-driven cost modeling solutions that inform pricing, profitability analysis, and…
Added 6 mins ago
CP
Information Technology Infrastructure Engineer - Cloud SRE and Automation
Colorado Public Employees' Retirement Association
Denver, CO
- $108,000 to $130,000 USD / year
Back up Terraform state and GitHub repositories, and test recovery against agreed recovery time and recovery point objectives
Added 9 mins ago
Senior Quality Engineer
Contec Inc.
Spartanburg, SC
The Senior Quality Engineer provides technical leadership for quality assurance activities involving products, processes, suppliers, and the Contec Quality Management System. This position…
Added 9 mins ago
U
Software Engineer
Unissant
Washington, DC
- $114,000 to $139,000 USD / year
Unissant is seeking a Software Engineer - A to support a newly awarded program for a federal health agency. Develop, test, and maintain application features and integrations, working within…
Added 9 mins ago
Senior Information Security Engineer - Ping Directory
Wells Fargo Bank, N. A.
MINNEAPOLIS, MN · IRVING, TX · CHANDLER, AZ · COLUMBUS, OH · CHARLOTTE, NC
This role will support the Directory Security Engineering (DSE) team through design, development, testing, and implementation of Ping Directory service configuration as code. The senior…
Added 9 mins ago
NLCC Systems Engineer, Lead
The MITRE Corporation
Fort Meade - Annapolis Junction, MD
Must have an active Top Secret U.S Government issued Security Clearance with the ability to obtain and maintain a Top Secret/SCI U.S
Added 10 mins ago
Software Development Engineer II
Expedia, Inc.
IL
As a Software Development Engineer II, you will contribute to the backend services and data platforms that support this work - from ingesting and processing advertising and conversion data…
Added 10 mins ago
Software Development Engineer III
Expedia, Inc.
IL
Expedia Group follows a flexible work model that requires employees to work from the office at least three days per week
Added 12 mins ago
Software Engineer II
CAI Cox Automotive Corp Svcs., LLC
United States
This role is ideal for an engineer who has moved beyond purely guided execution and is ready to take ownership of discrete features and system components while continuing to grow technical…
Added 13 mins ago
UG
Lead Site Reliability Engineer - Remote
UnitedHealth Group
Eden Prairie, MN
- $112,700 to $193,200 USD / year
area, you will be required to work in the office a minimum of four days per week
Added 13 mins ago
UG
Lead Site Reliability Engineer - Remote
UnitedHealth Group
United States
- $112,700 to $193,200 USD / year
area, you will be required to work in the office a minimum of four days per week
Added 14 mins ago
Senior Platform Engineer
Arlington, VA
540 is seeking a Senior Platform Engineer to support a high-impact Department of War (DoW) initiative focused on accelerating the secure adoption, deployment, and operationalization of…
Added 14 mins ago
Senior Electrical Engineer Autonomous Vehicle Systems/ NAV
Mercedes-Benz
Atlanta, GA
At Mercedes-Benz Research & Development North America (MBRDNA), we are committed to delivering world-class automotive technologies that push the boundaries of what is possible. Our teams of…
Added 15 mins ago
2027 - Associate Software Engineer - McClellan CA
CORP-Corporate Office
United States
Northrop Grumman Mission Systems is seeking a Software Engineer in McClellan, CA to help deliver next-generation national defense capabilities in a fast-paced, innovation-driven environment.
Added 15 mins ago
Electronics Engineer - 2
SP - Launch Vehicles
United States
Northrop Grumman Space Systems is seeking an Electronics Engineer to join the Launch Systems Avionics Design Group in Chandler, AZ. The role involves conducting comprehensive test…
Added 15 mins ago
K&
Software Test Engineer (Secret Clearance)
Kalman & Company, Inc.
Edgewood, MD
- $115,000 to $125,000 USD / year
Kalman & Company is seeking to hire a Software Test Engineer with an active Secret Clearance. This position is full-time onsite, in Edgewood, MD. This position has a salary range of…

Senior Platform Engineer

Arlington, VA, United States

Apply on job-boards.greenhouse.io

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Job details

Experience: 10+ years of relevant professional experience in platform engineering, cloud infrastructure, DevSecOps, systems engineering, or related technical disciplines
Posting language: English
Posted: Nov 13, 2026

Original job description

540 is seeking a Senior Platform Engineer to support a high-impact Department of War (DoW) initiative focused on accelerating the secure adoption, deployment, and operationalization of advanced AI capabilities across mission-critical environments.

In this role, you will design, build, secure, and modernize cloud infrastructure and DevSecOps platforms that enable the delivery of emerging technologies at scale. You'll work at the intersection of cloud engineering, cybersecurity, and AI infrastructure, helping government stakeholders establish reliable, compliant, and repeatable technical environments.

As a Senior Platform Engineer at 540, you'll bring deep hands-on engineering expertise alongside the technical leadership needed to influence architecture decisions, guide delivery teams, and establish reusable platform standards. You'll serve as a trusted technical advisor and help shape secure, scalable engineering practices that extend beyond a single engagement.

Location: Primarily remote (DC metro area preferred), with occasional onsite meetings as needed Citizenship & Clearance Requirement: per client requirements, candidates must be U.S. Citizens with an active DoW Secret (or higher) clearance Education Requirement: Bachelor’s Degree 540 Internal Thrive Level: Senior Platform Engineer

WHY 540?

540 is a forward-thinking company that the government turns to in order to #getshitdone. We don’t just talk about innovation – we deliver it. We break down barriers, build impactful technology, and solve mission-critical problems.

HOW YOU’LL DRIVE IMPACT

Design, secure, and maintain scalable cloud infrastructure and platform services supporting advanced AI capabilities across mission-critical DoD environments, including IL2 through IL5/IL6
Architect and continuously improve secure CI/CD pipelines using Jenkins, GitLab, Artifactory, and related DevSecOps technologies, integrating automated testing, vulnerability scanning, artifact signing, provenance, attestation, and policy-as-code
Establish container orchestration and runtime standards using Docker, Kubernetes, and related technologies to ensure consistent, secure deployment across environments
Develop and maintain infrastructure-as-code (IaC) and configuration management solutions using Terraform and related technologies to automate provisioning and ensure reproducible environments
Design, modernize, and manage cloud infrastructure, including networking, virtual machines, application gateways, API management platforms, and containerized services
Implement security and identity controls across platform environments, including RMF, STIG compliance, vulnerability management, ADFS/SAML integration, and least-privilege access
Establish observability, monitoring, logging, incident response, and reliability practices to maintain platform security, performance, and operational stability
Support secure infrastructure for AI-native workloads and LLM foundation model testing, incorporating platform-level security controls, auditability, and data protection
Develop reusable platform architectures, infrastructure accelerators, and engineering standards that can be adopted across teams and client engagements
Advise government stakeholders and delivery teams on technical architecture, risks, implementation decisions, and trade-offs while balancing security, scalability, operational costs, and delivery timelines
Mentor engineers, guide technical decisions, and champion engineering practices that improve delivery consistency, efficiency, and team capabilities

REQUIRED SKILLS & EXPERIENCE

10+ years of relevant professional experience in platform engineering, cloud infrastructure, DevSecOps, systems engineering, or related technical disciplines
Deep hands-on experience designing and improving secure CI/CD pipelines using Jenkins, GitLab, Artifactory, and related technologies, with demonstrated success increasing deployment frequency, automation, and delivery reliability across teams or engagements
Strong expertise in secure software delivery and supply-chain security, including automated vulnerability scanning, artifact signing, provenance, attestation, and policy-as-code
Proven experience with Docker, Kubernetes, and container orchestration, including establishing secure deployment and runtime standards across environments
Advanced experience with Terraform, infrastructure as code, and configuration management to provision, maintain, and reliably recreate cloud infrastructure
Experience designing, securing, modernizing, and troubleshooting complex cloud infrastructure, including networking, application gateways, API management services, and microservices architectures
Working knowledge of RMF, STIG compliance, vulnerability management, and secure DevOps practices within DoD IL2 through IL5/IL6 environments
Experience implementing identity and access management solutions, including ADFS/SAML, least-privilege principles, and secure authentication and authorization
Experience implementing infrastructure monitoring, logging, alerting, incident response, and reliability practices in complex environments
Experience supporting AI-enabled workloads or LLM foundation model testing, with an understanding of relevant infrastructure, security, and operational considerations
Demonstrated technical leadership, including architectural decision-making, establishing reusable engineering standards, and translating security and mission requirements into scalable solutions
Strong client-facing communication and advisory skills, with the ability to explain technical trade-offs, set realistic timelines, collaborate across teams, and mentor engineers
Must currently possess or be able to obtain CompTIA Security+ CE or another DoD-approved IAT Level II certification within 30 days of hire
Must currently possess or have the ability to obtain an Associate- or Professional-level cloud certification from Microsoft Azure, Google Cloud Platform (GCP), or Amazon Web Services (AWS) within 30 days of hire

NICE TO HAVE

Experience designing AI platform security and enforcement architectures, including mediation and control-plane patterns, prompt-injection defenses, workload identity federation for AI agents, bi-directional data loss prevention (DLP), and output governance and provenance
Experience integrating automated testing, static code analysis, software quality gates, and security scanning into CI/CD workflows using tools such as SonarQube, Trivy, Cosign, or related technologies
Familiarity with AI development and platform tooling, including PyTorch, artifact and corpora registries, secure software packaging, and dependency management
Experience modernizing legacy platforms, rearchitecting systems for cloud-native services, and optimizing infrastructure provisioning, scalability, and operational costs
Familiarity with Zero Trust architecture, secure distributed systems, hybrid cloud connectivity, and cloud identity federation
Experience establishing service-level objectives, infrastructure reliability standards, and operational improvement strategies
Prior experience sustaining mission-critical platforms in federal or DoD environments, particularly those subject to DoD 8000-series information security requirements

BENEFITS & PERKS

Flexible PTO + all Federal holidays off
Health, dental and vision insurance plans
Flexible Spending Account (FSA)
401k with employer match
Company-sponsored life insurance, short- and long-term disability
Professional development (training, certifications, conferences)
Paid cloud developer accounts
Referral bonuses
HQ office perks (parking / metro reimbursement, nitro coffee & lunches)
Annual social events (540 Week, hackathon, charity golf tournament, etc.)
Access to 540’s Washington Capitals & Nationals tickets

EQUAL EMPLOYMENT OPPORTUNITY (EEO)

540's policy is to provide equal employment opportunity to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

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More about this job

Skills

Cybersecurity
Leadership
IMPACT
CI/CD
Jenkins
GitLab
Test automation
Docker
Kubernetes
Infrastructure as code
IBM Terraform
Regulatory compliance
SAML
Incident response
Data protection
Supply chain management
Troubleshooting
Microservices
Identity and access management
Decision making
Communication skills
Security+
Microsoft Azure
Google Cloud
AWS
Loss prevention
SonarQube
PyTorch
Packaging

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Work requirements

Jobs in the United States