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Senior Applications Developer (Government)

Oakton, Virginia

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Job Description:

This position requires office presence of a minimum of 5 days per week and is only located at customer's site. No relocation is offered.

AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government.   We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers’ mission.

Our AT&T National Security organization supports our Nation’s Intelligence Community, operating and assuring critical data, voice, video, and collaboration services for the full spectrum of intelligence operations.

AT&T has an opening for aSenior Applications Developer to support a professional services program for a US Government customer in the Washington DC metropolitan area. This Senior Applications Developer role will be primarily focused on the design, development, testing and support of specialized applications to meet customer mission requirements. This role requires expertise in full stack application development and integration with multi-vendor applications, virtual environments, as well as the SIP protocol stack. Seeking a highly motivated who demonstrates effective decision making and analytical skills, high attention to detail and a strong communicator. The candidate should be comfortable working independently and with an integrated team to support customer objectives. Position is full-time on customer premise.

Job Duties/Responsibilities:

  • Software Development: Code and test new software applications to meet business requirements and user needs. 
  • Front-end – Design and develop user interfaces that facilitate user experience
  • Backend – Develop server-side logic, create and manage databases and integrate APIs with front-end
  • Database Management – Design, implement and maintain databases to store and retrieve data efficiently
  • Application Maintenance and Performance Optimization: Maintain and update existing applications to fix bugs, improve performance, and ensure compatibility with new technologies. 
  • Requirement Analysis and Documentation: Collaborate with stakeholders to gather and analyze requirements/user stories, creating and maintaining comprehensive documentation. 
  • Quality Assurance and Technical Support: Conduct code reviews, unit testing, and integration testing, providing technical support and troubleshooting assistance. 
  • Collaboration and Project Management: Work closely with cross-functional teams to deliver projects on time, managing development projects and staying updated with industry trends and technologies. 

Required Clearance:

TSSCI with poly (#tssci) (#polygraph)

Additional Clearance Requirements:

Customer specific High-Risk Role (HRR) screening

Required Qualifications:

B.S. in Computer Science, Computer Engineering, Information Technology or related field

       *Education requirements are flexible depending on experience

The following skills / prerequisites are required: 

 - Minimum of 3-5 years of working experience designing, developing, implementing and maintaining application solutions to include:

  • Experience operating within Agile framework methodologies and the software development lifecycle – design, implementation and deployment.
  • Proficiency as a full-stack developer with experience in front-end and back-end languages such as Python, Java, Node.js, Javascript, HTML, CSS, SOAP and RESTful APIs, SQL, PHP, JSON, etc.
  • Familiarity with or prior experience with Session Initiation Protocol (SIP) based real-time IP communication applications. Development and maintenance of communications-based solutions such as integration of real-time communication technologies (voice, video, messaging) and/or mobile applications.
  • Experience architecting software solutions involving user interface (UI), data and database management and server-side logic 

- Experience in building web applications and designing and integrating RESTful APIs to ensure data flow and or communication exchange information between applications and systems

- Hands on experience with databases like MySQL, PostgreSQL, MongoDB to include data schema design and data interactions to support applications

- Experience working with source code version control systems to track coding revisions and support collaboration such as Git

- Familiar with cyber-security best practices that ensure data integrity and security to protect the application from vulnerabilities including authentication and authorization and encryption.

- Strong analytical thinker and problem solver who can efficiently troubleshoot problems, inefficiencies, and performance issues. Familiar with tools and methods for analyzing, debugging and troubleshooting application issues when they arise and demonstrated ability to diagnose, resolve and optimize application using rigorous logic.

- Strong communication skills to collaborate effectively with cross-functional engineering team within the Sponsor’s organization.

- Occasional travel to other Sponsor locations within the Washington Metro Area may be required.  

- Demonstrated commitment to professional development and continuous learning both on and off the job to keep current with technology as well as enhance and develop skill and expertise.

Desired Qualifications

-Industry certifications in various web design and programming languages, such as HTML, CSS, JavaScript, C#, Python and similar certifications. Examples:

       Oracle Certified Associate/Professional, Java SE

       Microsoft Full-Stack Developer Professional Certificate

       PCEP/PCAP/PCPP

       JSE/JSA/JSPA/JSPB

       SIP School Certified Associate (SSCA)

       Oracle Database SQL Certified Associate/EDB PostgreSQL/MongoDB

- Experience or working knowledge of system virtualization, VMWare or equivalent

- Experience with cloud services and connectivity with providers such as AWS, Azure or GCP

- Experience with administration of Linux platforms and CLI

- Familiarity with SIP protocol and communication application framework such as Asterisk,  

- Firm understanding of network protocols, TCP/IP and VoIP technologies and concepts

Our Senior Applications Developer's earn between $98,100 - $228,600. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.

Joining our team comes with amazing perks and benefits:

  • Medical/Dental/Vision coverage
  • 401(k) plan
  • Tuition reimbursement program
  • Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
  • Paid Parental Leave
  • Paid Caregiver Leave
  • Additional sick leave beyond what state and local law require may be available but is unprotected
  • Adoption Reimbursement
  • Disability Benefits (short term and long term)
  • Life and Accidental Death Insurance
  • Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
  • Employee Assistance Programs (EAP)
  • Extensive employee wellness programs
  • Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

Weekly Hours:

40

Time Type:

Regular

Location:

Oakton, Virginia

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Job ID R-63813 Date posted 04/14/2025
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Benefits

Your needs? Met. Your wants? Considered. Take a look at our comprehensive benefits.

  • Paid Time Off
  • Tuition Assistance
  • Insurance Options
  • Discounts
  • Training & Development

Learn more about benefits

Our hiring process

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Assessments

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Interview

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Conditional Job Offer

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Background Check

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