Senior Application Developer (AWS Cloud / Full Stack)

Location: Washington, DC
Clearance Requirement: U.S. Citizenship required.
The Opportunity

This position supports a mission-critical cloud modernization program focused on building and sustaining scalable, secure applications within AWS GovCloud environments. The selected candidate will contribute to the design, development, and deployment of containerized, cloud-native applications supporting enterprise data and user-facing systems.

We are seeking a Senior Application Developer with strong full-stack engineering experience across AWS cloud services, backend development in Python, and frontend development using Angular or similar frameworks. This role is ideal for engineers who thrive in Agile environments, contribute to architecture decisions, and leverage modern DevOps practices to deliver high-quality, production-ready solutions.

You will support the full application lifecycle-from design and development through testing, deployment, and operational sustainment-while collaborating closely with cross-functional teams in a fast-paced, mission-driven environment.
Core Experience

Candidates should bring hands-on experience in:

Designing and developing cloud-native applications using AWS services and containerized architectures

Building backend services using Python and developing frontend applications using Angular (TypeScript)

Developing and maintaining RESTful or GraphQL APIs and supporting production-grade API ecosystems

Implementing CI/CD pipelines for automated build, test, and deployment workflows

Utilizing Infrastructure as Code (IaC) tools such as Terraform to provision and manage AWS environments

Working within Agile development teams, contributing to sprint planning, development, and delivery

Performing unit testing, automated testing, and remediation of application issues throughout the development lifecycle

Supporting application deployment, monitoring, and operational troubleshooting in production environments

Contributing to system design, documentation, and technical implementation strategies
Additional Experience That Adds Value

Experience working in AWS GovCloud environments

Familiarity with DevOps and SRE practices, including monitoring, logging, and operational support

Experience with containerization technologies such as Docker and orchestration platforms like Kubernetes (EKS, ECS, Fargate)

Knowledge of cloud security, authentication, and authorization frameworks (OAuth 2.0, OpenID Connect, Okta, JWT)

Experience with interactive data visualization tools such as Highcharts, ag-grid, or Plotly

Familiarity with data engineering pipelines and tools (Glue, Airflow, PySpark, pandas, dbt)

Experience implementing data quality frameworks such as Great Expectations or Glue Data Quality

Exposure to logging and monitoring platforms such as CloudWatch or Splunk

Experience working in federal environments with knowledge of NIST 800.53 / FISMA compliance
Specialized Experience Areas

Candidates may demonstrate depth in one or more of the following areas:
AWS DevOps & Systems Engineering

• Provisioning and managing AWS infrastructure using Terraform
• Supporting services such as S3, ECS, RDS/Aurora (Postgres), API Gateway, CloudWatch, and CloudTrail
• Implementing CI/CD pipelines, automated testing, and release management
• Supporting monitoring, logging, and operational reliability (SRE practices)

AWS Data Engineering

• Designing and maintaining data pipelines (ETL/ELT) using AWS-native tools
• Working with Glue or Airflow (MWAA), RDS/Aurora, and S3-based architectures
• Developing data processing solutions using Python (pandas, PySpark) or SQL
• Implementing data quality validation and pipeline monitoring

AWS Front-End Engineering

• Developing modern web applications using Angular or React with TypeScript
• Building highly interactive, data-driven user interfaces
• Integrating APIs and implementing secure authentication mechanisms
• Utilizing automated testing frameworks such as Selenium and Jasmine

Technical Stack

Strong experience with the following technologies is expected:

AWS (S3, ECS, Lambda, API Gateway, RDS/Aurora, Glue, CloudWatch, CloudTrail)
Terraform (Infrastructure as Code)
Python (backend services, data engineering)
Angular / TypeScript (frontend development)
REST / GraphQL APIs
CI/CD pipelines (GitLab, Argo CD, or similar)
Docker and Kubernetes (EKS, ECS, Fargate)
Authentication (Okta, OAuth 2.0, OpenID Connect, JWT)
Automated testing (Selenium, Postman, Swagger/OpenAPI)
Demonstrated Expertise

Candidates should be able to clearly demonstrate:

Experience building and deploying cloud-native applications in AWS environments

Ability to design and implement scalable, secure APIs and microservices

Experience troubleshooting production issues and optimizing application performance

Strong understanding of DevOps practices, CI/CD pipelines, and automated testing

Ability to contribute to system architecture and collaborate effectively within Agile teams
Education

Bachelor's degree in Computer Science, Information Technology, or a related technical discipline is required.

Minimum of 6 years of relevant professional experience supporting application development and cloud environments.
Benefits

The Britton Group offers competitive salaries and a comprehensive benefits package that includes:

6% 401(k) match with immediate vesting

100% company-paid medical, dental, and vision coverage for employees

Company-paid long-term and short-term disability, basic life, and AD&D insurance

11 paid holidays plus 20 days of PTO (increasing with tenure)

Tuition reimbursement up to $5,250 per year, plus additional training allowances

Performance-based bonuses