Senior Lead Developer

A-TEK Inc.; Washington (District of Columbia); Hybrid; USD 150,000 - 162,000; Full time

Benefits offered by this job

Health insurance

401(k) with employer match

Paid time off

Professional development opportunities

Job summary

A-TEK Inc. in Washington, DC is seeking a Senior Lead Developer to guide enterprise application development for a federal civilian agency.

You will design, develop, modernize, and deploy mission-critical apps across Microsoft 365, Azure Government, and cloud-native platforms. You will mentor teams, set standards, and ensure software quality throughout the Agile lifecycle, using Python, React, .NET, Power Platform, SQL Server, PostgreSQL, and Azure services.

Qualifications

• Bachelor's degree in a related technical discipline.
• Minimum 10 years of professional software development experience.
• Minimum 5 years supporting Federal Government IT systems.
• Demonstrated experience leading software development teams.
• Strong verbal and written communication skills.

Responsibilities

• Serve as the senior technical authority for application design and implementation.
• Establish development standards, coding guidelines, and engineering best practices.
• Mentor and coach developers through design reviews, pair programming, and technical guidance.
• Design, develop, test, deploy, and maintain enterprise web applications.
• Lead migration of legacy applications to modern cloud-native architectures.

Skills

Python

C#

.NET

SQL

React

HTML5

CSS3

FastAPI/Flask/Django

JSON/XML

Education

Bachelor's degree in Computer Science, Information Systems, Engineering, or related technical discipline

Tools

Git

GitHub

Automated testing

Infrastructure as Code

Azure DevOps

CI/CD pipelines

Job description

Empower, Innovate, Impact! At Team A-TEK, we enable people to drive innovation that impacts mission.

A-TEK operates at the intersection of mission and innovation by applying deep domain expertise across federal markets. Our digital‑first strategy enhances application development, digital transformation, enterprise IT, and scientific services. Solutions modernize, automate, secure, protect, and enhance operations of our federal clients.

The Senior Lead Developer is the technical leader for enterprise application development supporting a federal civilian agency’s Application Development and Support Services program. This role designs, develops, modernizes, integrates, tests, deploys, and supports mission‑critical business applications across Microsoft 365, Azure Government, and cloud‑native platforms.

The Senior Lead Developer provides hands‑on technical leadership while mentoring teams, establishing standards, conducting code reviews, and ensuring software quality throughout the Agile lifecycle. The role balances new development with modernization of existing applications, leveraging Python, React, .NET, Microsoft Power Platform, SQL Server, PostgreSQL, and Azure services. This is a hybrid position based in Washington, DC.

Key Responsibilities

Technical Leadership

• Serve as the senior technical authority for application design and implementation.
• Establish development standards, coding guidelines, and engineering best practices.
• Mentor and coach developers through design reviews, pair programming, and technical guidance.
• Conduct peer code reviews and approve production‑ready code.

Application Development

• Design, develop, test, deploy, and maintain enterprise web applications.
• Develop modern React‑based user interfaces.
• Design and develop scalable Python backend services and RESTful APIs.
• Maintain and enhance existing C#/.NET applications while supporting long‑term modernization initiatives.
• Develop reusable software components and shared application services.
• Integrate enterprise applications with Microsoft 365, Power Platform, Azure services, and external systems.
• Lead migration of legacy applications to modern cloud‑native architectures.
• Design scalable solutions using Azure Government services.
• Support migration from SQL Server to PostgreSQL where appropriate.
• Implement microservices, API‑first architectures, and container‑ready applications where applicable.
• Participate in modernization assessments and technology roadmaps.

Database Development

• Develop SQL Server and PostgreSQL stored procedures, views, and optimized queries.
• Support data migration and data quality initiatives.
• Optimize application performance through database tuning.

DevSecOps

• Build and maintain CI/CD pipelines using Azure DevOps and/or GitHub.
• Implement automated builds, testing, and deployments.
• Integrate static and dynamic application security testing into development pipelines.
• Maintain Software Bills of Materials (SBOMs) for production releases.
• Support infrastructure‑as‑code and automated deployment practices.

Software Quality

• Develop automated unit, integration, and regression tests.
• Ensure development complies with secure coding standards.
• Support Section 508 accessibility compliance.
• Participate in sprint planning, backlog refinement, demonstrations, and retrospectives.
• Resolve production issues and perform root‑cause analysis.

Security & Compliance

• Support Authority to Operate (ATO) activities.
• Remediate security vulnerabilities identified through automated scanning or penetration testing.
• Ensure compliance with:
  • FISMA
  • NIST SP 800‑53
  • Zero Trust principles
  • Agency security policies

Documentation

• Document APIs and integration specifications.
• Develop deployment guides and operational runbooks.
• Maintain software configuration documentation.

Minimum Qualifications

• Bachelor’s degree in Computer Science, Information Systems, Engineering, or related technical discipline.
• Minimum 10 years of professional software development experience.
• Minimum 5 years supporting Federal Government IT systems.
• Demonstrated experience leading software development teams.
• Strong verbal and written communication skills.

Required Technical Skills

Programming Languages

• Python
• C#
• .NET
• SQL

Front‑End Technologies

• React
• HTML5
• CSS3
• Python frameworks (FastAPI, Flask, or Django)
• JSON/XML

Databases

• Microsoft SQL Server
• Entity Framework
• Dataverse

Microsoft Technologies

• Microsoft 365
• Power Apps
• Power Automate
• Power Pages
• Power BI
• SharePoint Online
• Microsoft Teams

DevOps

• Git
• GitHub
• Automated testing
• Infrastructure as Code concepts

Preferred Qualifications

• Microsoft Certified: Azure Solutions Architect Expert
• Security+
• Certified Scrum Developer (CSD)

Preferred Experience

• Microsoft Dynamics 365
• Legacy application modernization
• Identity and Access Management (IAM)
• OAuth/OpenID Connect
• Section 508 accessibility compliance
• FISMA Moderate or High systems
• Authority to Operate (ATO) support
• NIST cybersecurity controls
• DevSecOps implementation

Desired Competencies

• Technical leadership
• Software architecture
• Problem solving
• Systems integration
• Analytical thinking
• Mentoring and coaching
• Strong organizational skills
• Ability to manage multiple priorities in a fast‑paced Agile environment

Compensation and Benefits

Salary Range: $150,000 – $162,000 annually (commensurate with experience).

Benefits: Health, dental, and vision insurance; 401(k) with employer match; paid time off; professional development opportunities.

Why Join Us?

This role offers a direct impact on healthcare data processes that support critical regulatory functions. You will collaborate with dedicated professionals, work on meaningful projects, and contribute to improvements in public health systems.

A-TEK, Inc. is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.