Alexandria, VA

Developer Jobs in Alexandria, VA

3 jobs found

Include remote jobs

1d ago

Backend Software Engineer

Leidos Alexandria, VA

Alexandria, VA

1d ago

$108k - $195k/yr Full time Backend Developer Python Apache Airflow

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Job Description

The Backend Software Engineer role at Leidos is grounded in designing, building, and maintaining scalable backend services and REST APIs for a high-visibility data analytics application. This onsite position in Alexandria, VA emphasizes Java or Python development within Linux environments and close collaboration with mission stakeholders.

Compensation

Salary: USD 107,900 - 195,050 per year

Responsibilities

Design, implement, test, and maintain backend services using Java or Python.
Develop RESTful APIs to enable core application features and integrations with external systems.
Apply solid object oriented design principles to build scalable, maintainable architectures.
Write and optimize SQL queries to support functionality and performance across databases.
Collaborate with external teams to understand data sources, interfaces, and access patterns, translating requirements into backend integrations.
Participate in technical design discussions and influence backend architecture decisions.
Work within Linux-based environments to develop, deploy, and troubleshoot applications.
Diagnose and resolve issues spanning application and database layers.
Contribute to code reviews and uphold engineering standards and best practices.

Requirements

Bachelor’s degree in Computer Science, Software Engineering, or a related field with 8 to 12 years of experience, or a Master’s degree with 6 to 10 years of experience.
U.S. citizenship required.
Active TS/SCI clearance with the ability to pass a polygraph.
Extensive experience building backend applications in Java or Python.
Proven track record designing and building RESTful APIs for scalable functionality.
Solid SQL experience, including writing and optimizing queries for relational databases.
Comfortable working in Linux-based environments.
Ability to work independently and deliver solutions for moderately to highly complex technical challenges.

Technologies

Java
Python
Spring Boot
Django
PostGIS
Apache Airflow
GitLab
Jenkins
Docker
OpenShift
Kubernetes
AWS
Azure
Linux
SQL

Benefits

Competitive compensation
Health and wellness programs
Income protection
Paid leave
Retirement benefits

Why this role stands out

High impact: Your work supports a widely used application that informs real time decisions.
High visibility: Collaborate directly with engineering teams and mission stakeholders.
Career growth: Deepen expertise in backend architecture, API design, and scalable systems.
Challenging work: Build and optimize complex backend features.

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1d ago

Mid-Level Backend Software Engineer

Leidos Alexandria, VA

Alexandria, VA

1d ago

$87k - $157k/yr Full time Backend Engineer Mid

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Job Description

Leidos offers a competitive compensation package and a comprehensive benefits program that supports your health, income protection, time off, and long term retirement security. This on site role in Alexandria, VA focuses on backend engineering that powers mission critical analytics. You will design, develop, and maintain backend components and RESTful services in a Linux environment, collaborating with data owners and stakeholders across programs and locations. The position carries a salary range of USD 87,100 to 157,450 per year and requires a Master’s degree with prior experience.

Benefits

competitive compensation
Health and Wellness programs
Income Protection
Paid Leave
Retirement

Responsibilities

Design, develop, test, and maintain backend application components using Java or Python
Develop and maintain RESTful services to support application functionality and system integrations
Apply object oriented design principles to build scalable and maintainable systems
Write and modify SQL queries to support application functionality and data retrieval
Collaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systems
Develop and troubleshoot applications within Linux based environments
Implement backend logic for data transformation, processing, and system workflows
Identify, debug, and resolve application level defects and performance issues
Follow coding standards, participate in code reviews, and support documentation efforts

Requirements

Bachelor’s degree in Computer Science, Software Engineering, or a related field
Bachelor’s degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience
Master’s degree with 2–6 years of experience
US Citizenship
Active TS/SCI with the ability to successfully pass a Polygraph
Professional experience developing object oriented applications in Java or Python
Hands on experience building and maintaining RESTful APIs
Basic to moderate experience with SQL capability, including writing queries and working with relational databases
Working knowledge of Linux based environments
Ability to work independently on defined tasks within established technical frameworks and deliver reliable results

Technologies

Java
Python
SQL
Linux
Apache Airflow
Spring Boot
Django
Docker
OpenShift
GitLab
Jenkins
AWS
Azure

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3d ago

Sr. Software Engineer TS/SCI Polygraph

Leidos Alexandria, VA

Alexandria, VA

3d ago

$131k - $237k/yr Full time Backend Developer Python Senior

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Job Description

Senior Software Engineer with an active TS/SCI polygraph is required for an on-site role in Alexandria, VA; salary range USD 131,300 - 237,350 per year.

Responsibilities

Participate in daily stand-ups, Sprint Planning, PI Planning, and related team activities; analyze complex system requirements; utilize design tools and formal specifications, data flow diagrams, and other accepted design techniques to deliver modular, efficient, reliable, and reusable code.
Provide software process management and control throughout the coding portion of the SDLC; promote code reuse and cross-program collaboration while reducing maintenance costs by creating common functions and shared actions for developers and testers.
Engineer, author, tune, and document automation scripts in the development environment and deploy them to test and production benches.
Adhere to Behavior-driven Development patterns and implement robust testing leveraging DevOps automation; where appropriate, use test automation tools.
Contribute to server-side business logic development as well as client web application and UI development, with work spanning Java, Python, embedded C/C++, Java cryptographic framework, XML, and web UI technologies (Angular, JavaScript, CSS, HTML); opportunities for special purpose device programming.

Requirements

Active TS/SCI polygraph up front; no exceptions.
BS degree with 12–15 years of relevant experience or MS with 10–13 years; additional experience may substitute for a degree.
Demonstrated experience with Java.
Experience or familiarity with multiple Java frameworks: Spring (Boot, Data), JEE (JPA, EJB, JTA, Servlet), Jackson, Jersey, Swing, JavaFX.
Experience or familiarity with multiple languages such as JavaScript, Python, C/C++, Groovy, SQL.
Experience with development IDEs such as Eclipse, Visual Studio Code, Visual Studio, Rhapsody, WebStorm.
Experience with databases such as Oracle, PostgreSQL, MongoDB, SQL Server.
Experience with Web Application User Interface Development, knowledge of databases and structures, Spring Framework, and/or experience with AngularJS, JSON, HTML, XML, XSLT.
Experience with software source control and configuration management tools.
Experience with cryptographic technologies including symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization, and digital signatures.
Experience developing on Windows and/or Linux operating systems.
Documented professional experience with web services.
Strong understanding of sound software development principles and practices.
Ability to plan and prioritize personal tasks and communicate effectively verbally and in writing.
Independent thinker capable of high quality work both independently and with a team in a fast-moving environment.

Technologies

Java, Python, C/C++, Java cryptographic framework, Groovy, XML, SQL
JavaScript, HTML, CSS, Angular, AngularJS, JSON, XSLT
Spring, Boot, Data, JEE, JPA, EJB, JTA, Servlet, Jackson, Jersey, Swing, JavaFX
Eclipse, Visual Studio Code, Visual Studio, WebStorm, Rhapsody
Oracle, PostgreSQL, MongoDB, SQL Server
Tomcat, WebLogic, JBoss
Docker, Podman, Kubernetes, OpenShift
Bootstrap, JQuery
JUnit, Jupiter, Mockito, Jasmine, Karma, Cucumber, UFT, Selenium, FITNesse
Maven, CMake, RPM, Jenkins, Nexus
Windows, Linux
JSON, ASN.1 encoding, XML canonicalization, digital signatures
Web services

Benefits

Competitive compensation
Health and Wellness programs
Income Protection
Paid Leave
Retirement

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Developer Jobs in Alexandria, VA

Backend Software Engineer

Mid-Level Backend Software Engineer

Sr. Software Engineer TS/SCI Polygraph

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