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J5 Consulting

Secures IT systems and manages cybersecurity operations

Web Application Developer

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeMcLean, VA, USA

About the Job

Requirements

  • Demonstrated experience with Agile/Scrum development methodologies in a fast-paced, collaborative team environment.
  • Demonstrated experience working effectively in high-performing, cross-functional teams with multiple concurrent projects.
  • Demonstrated experience working directly with stakeholders to gather requirements, understand needs, and translate them into technical solutions with minimal oversight.
  • Demonstrated experience in self-directed work with a strong ownership mentality and commitment to code quality, testing, and documentation.
  • Demonstrated experience context-switching between projects and systems as priorities demand.
  • Demonstrated experience developing modern web applications using JavaScript/TypeScript frameworks such as Angular, React, or Vue.
  • Demonstrated experience with Node.js web frameworks such as Express, Koa, or Hapi and application programming interface development.
  • Demonstrated experience with HTML5, CSS3, modern JavaScript (ES6+), and TypeScript.
  • Demonstrated experience with CSS preprocessors such as Sass.
  • Demonstrated experience designing and implementing RESTful application programming interfaces and microservices.
  • Demonstrated experience with SQL databases, including schema design, query optimization, and performance tuning.
  • Demonstrated experience with PostgreSQL and MySQL in production environments.
  • Demonstrated experience with object-relational mappers such as Prisma, Sequelize, or similar tools.
  • Demonstrated experience with containerization technologies such as Docker or Podman.
  • Demonstrated experience with Amazon Web Services cloud services and cloud-native development patterns.
  • Demonstrated experience with web application security best practices and usability principles.
  • Demonstrated experience with Git version control and collaborative development workflows.
  • Demonstrated experience with problem-solving, including debugging, testing, and troubleshooting complex web applications.
  • This position requires United States citizenship.
  • The successful candidate must have an active U.S. Government Top Secret Security Clearance with a Full Scope Polygraph.

Responsibilities

  • Develop modern web applications and implement application programming interfaces, microservices, and cloud-native solutions.
  • Gather stakeholder requirements and translate them into technical solutions.
  • Design database schemas, optimize queries, and tune performance.
  • Apply web application security best practices and usability principles.
  • Debug, test, and troubleshoot complex web applications.
  • Collaborate in cross-functional teams across multiple concurrent projects and systems.
  • Use Git version control and collaborative development workflows.

Desired Qualifications

  • Demonstrated experience with Elasticsearch query language.
  • Demonstrated experience with Infrastructure as Code concepts using Terraform or CloudFormation.
  • Demonstrated experience contributing to technical documentation, architecture diagrams, or knowledge bases.
  • Demonstrated experience with monitoring and observability tools.
  • Demonstrated experience with geospatial libraries and visualization, including Leaflet.js.
  • Demonstrated experience migrating or modernizing legacy applications.
  • Demonstrated experience with continuous integration and continuous delivery pipelines, with Jenkins preferred, and deployment automation.
  • Demonstrated experience integrating with data lake or lakehouse architectures or data-intensive applications.
  • Demonstrated experience integrating Sponsor's Enterprise services.
  • Demonstrated experience with Java Enterprise Edition applications and containers.
  • Demonstrated experience with Public Key Infrastructure.
  • Demonstrated experience communicating effectively in writing and verbally with technical and non-technical audiences.

About the Company

J5 Consulting

Secures IT systems and manages cybersecurity operations

J5 Consulting is a cybersecurity and IT services company serving government agencies and commercial organisations. Its work combines security assessments, risk management and compliance support with cloud computing, systems integration, application support and ongoing IT operations. The company evaluates vulnerabilities, develops tailored remediation plans and implements controls intended to protect clients' systems and data. Its managed services cover infrastructure monitoring, cloud administration, patching and security reporting, while its consulting teams support technology and programme decisions. Established in 2006 as J5 Holdings Corporation, J5 Consulting is headquartered in Bowie, Maryland, United States.

Company size
1-10
Company stage
Not listed
Total funding
Not listed
Headquarters
Bowie, MD
Founded
2006

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