1,827,187open jobs
106,446companies
258,757added this week
Browse all
Salary
$70k – $126k per year
Location
In office (Clarksburg)
Seniority
Middle · 2+ years exp
Visa
H-1B filings in 12 months: 50 · for this role: 24 · green card filings: 24
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Jun 4, 2026. Leidos scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.

We are seeking a Mid-Level Software Engineer with a web application development with exposure to full-stack capabilities (front-end, back-end, full-stack) to design, build, test and maintain scalable software systems. This role will play a part in creating front-end and backend services, developing APIs, and collaborating with development team to deliver reliable, high-performance applications.

The ideal candidate has experience in web applications, cloud-native architectures, testing, and modern CI/CD practices and tools, while also being comfortable contributing across the full stack when needed. Duties include computer programming, documenting, managing configuration, testing, and bug fixing involved in creating and maintaining applications and frameworks involved in a software release life cycle and resulting in a software product.

Key Responsibilities:

  • Responsible for writing and maintaining source code, creating and maintaining software applications and applying frameworks involved in a software release.

  • Duties include computer programming, documenting, managing configuration, testing, and bug fixing involved in creating and maintaining applications and frameworks involved in a software release life cycle and resulting in a software product.

  • Expertise in one or more programming language is required.

  • Works to achieve day-to-day objectives with moderate impact on the area/ project team. Works independently on larger, moderately complex projects/assignments. May assist other technical staff with tasks and assignments.

  • Communicates with colleagues across multiple areas (project managers, other technical resources, etc.). Explains technical solutions, practices and procedures to others within the organization.

Required Qualifications:

  • Typically requires BS degree and 2 - 4 years of prior relevant experience or Masters with less than 2 years of prior relevant experience.

  • Must hold an active Secret security clearance.

  • Expertise in front end web application development in one or more programming languages is required.

    • Java

    • JavaScript

    • Spring Boot

  • Knowledge of working with relational databases (PostgreSQL, MySQL, etc.)

  • Experience with cloud platforms such as AWS, Azure, or Google Cloud.

  • Experience with Agile project management software such as Jira, Confluence, etc.

  • Familiarity with containerization technologies like Docker and Kubernetes.

  • Experience with version control systems such as Git.

  • Knowledge of software architecture, design patterns, and system scalability.

Preferred Qualifications:

  • Experience with frontend frameworks (React, Angular, or Vue).

  • Experience building RESTful APIs and microservices interfaces.

  • Experience with

    • Automated testing experience in end-to-end testing, regression testing, integration testing, etc.

    • Spring Boot.

    • Hibernate

    • Hibernate using native queries

    • Experience with CI/CD pipelines such as Gitlab.

  • Knowledge of infrastructure-as-code (IaC) tools (Hashicorp Terraform, CloudFormation, Ansible).

  • Experience with observability tools (Datadog, Prometheus, Grafana, CloudWatch, Elastic Search).

  • A working knowledge and experience with the following are preferred as they will be used to complete Software Engineering tasks: SAFe 6, EDB Postgres, an IDE such as Eclipse or IntelliJ, Git, Python, Jenkins, Kubernetes, Argo, Docker, Red Hat Linux, SQL Developer, Jira, Bitbucket, OpenShift, SmartBear ReadyAPI, SoapUI, LoadUi, Java, Spring, Maven/Gradle, ActiveVOS, Camel, NEIM XML, EBTS, SecDevOps.

Key Competencies:

  • Problem-solving and analytical thinking.

  • Passion for quality control and improving engineering practices.

  • Excellent communication and collaboration skills.

  • Ownership mindset and accountability for deliverables.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

June 4, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $69,550.00 - $125,725.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,827,187 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend
Similar stack
Same company
Clarksburg
≈ $159k – $324k per year (Estimated) • In office • Bachelor's Degree • Sunnyvale
Python
JavaScript
Swift
Objective-C
DevOps
GCP
AWS
Apply
≈ $159k – $324k per year (Estimated) • In office • Bachelor's Degree • Cupertino
Python
JavaScript
Swift
Objective-C
DevOps
GCP
AWS
Apply
≈ $232k – $424k per year (Estimated) • In office • 3+ years exp • Bachelor's Degree • Seattle
Go
Java
C#
C++
AI/ML
vLLM
SGLang
LLM
KV Cache
DevOps
Kubernetes
Platform Engineering
Unix
Apply
≈ $232k – $424k per year (Estimated) • In office • 3+ years exp • Bachelor's Degree • Cupertino
Go
Java
C#
C++
AI/ML
vLLM
SGLang
LLM
KV Cache
DevOps
Kubernetes
Platform Engineering
Unix
Apply
≈ $187k – $369k per year (Estimated) • In office • 3+ years exp • Master's Degree • Cupertino
Python
C++
Perl
Apply
Software Engineer 4 days ago
≈ $67k – $136k per year (Estimated) • In office • 2+ years exp • Dallas
Go
Rust
Erlang
Scala
Elixir
F#
Elixir
Phoenix LiveView
Databases
PostgreSQL
AI/ML
AI Agents
Apply
≈ $66k – $134k per year (Estimated) • In office • Bachelor's Degree • Dallas
JavaScript
TypeScript
AI/ML
Prompt Engineering
AI Agents
Agentic Workflows
Frontend
Redux
React.js
Redux Toolkit
Mobile
State Management
DevOps
CI/CD
Git
Apply
In office • Full-Time • Cairo
Databases
MySQL
MariaDB
DevOps
Nginx
Linux
Apply
$108k – $195k per year • In office • TS/SCI • Full-Time • 8+ years exp • Bachelor's Degree • Suitland
Python
PowerShell
DevOps
Azure
CI/CD
AWS
Bicep
Cybersecurity
Zero Trust
Apply
$108k – $195k per year • In office • Public Trust • Full-Time • 10+ years exp • Bachelor's Degree • Rockville
Python
Java
Ruby
Databases
Oracle
DynamoDB
Amazon Redshift
Amazon Aurora
Amazon Neptune
DevOps
CI/CD
AWS
Kubernetes
AWS Lambda
Amazon S3
API Gateway
Cybersecurity
FedRAMP
Management
Agile
Scrum
Kanban
BPMN
Apply
$131k – $237k per year • In office • Full-Time • 12+ years exp • Bachelor's Degree • Gaithersburg
Python
Java
Kotlin
C++
Kotlin
Mockito
Databases
Apache Kafka
AI/ML
Copilot
Claude
ChatGPT
Claude Code
Model Context Protocol
AI Agents
RAG
Context Engineering
LLM Guardrails
Multi-Agent Systems
DevOps
Terraform
Ansible
OpenShift
Helm
Istio
Podman
CloudFormation
CI/CD
GitOps
ArgoCD
Git
AWS
Docker
Kubernetes
Service Mesh
Configuration Management
Argo Workflows
GitLab
Cybersecurity
SonarQube
Management
Agile
QA
Selenium
Apply
$87k – $157k per year • In office • Full-Time • 4+ years exp • Bachelor's Degree • Huntsville
Python
Java
C++
DevOps
CI/CD
Apply
$115k – $125k per year • In office • TS/SCI • 10+ years exp • Clarksburg
JavaScript
Frontend
Vue.js
DevOps
CI/CD
Management
Agile
Apply
Software Engineer SME 20 days ago
$125k – $135k per year • In office • TS/SCI • 10+ years exp • Clarksburg
JavaScript
Frontend
Vue.js
DevOps
CI/CD
Management
Agile
Apply
≈ $56k – $134k per year (Estimated) • In office • Full-Time • Clarksburg
Apply
Management Trainee 2 days ago
$52k – $55k per year • In office • 1+ year exp • Bachelor's Degree • Clarksburg
Apply
Operations Manager 3 days ago
≈ $73k – $170k per year (Estimated) • In office • Full-Time • High School Diploma • Clarksburg
Apply
See all jobs
This is one of many
1,827,187 more open roles from verified company boards, updated every day.