Demo

Software Developer (Back End)

CGI
Fairfax, VA Full Time
POSTED ON 4/15/2026
AVAILABLE BEFORE 5/13/2026
Position Description

CGI Federal is seeking a highly skilled and motivated Backend Developer to join our innovative team. As a Backend Developer, you will be responsible for designing, developing, and maintaining robust and scalable backend systems. You will work closely with front end developers, data scientists, and other stakeholders to deliver high-quality solutions.

This position can be located at any CGI office in the U.S, preferred location is Fairfax, VA; however, a hybrid working model is acceptable.

Your future duties and responsibilities

Develop and maintain backend services and APIs using Golang, Python, Java, and other technologies.

Strong understanding of modern application architecture and cloud native application development.

Experience with Google cloud or any other cloud native application development.

Experience building backend APIs with REST, SOAP, and developing microservices.

Good understanding of event driven architecture and design.

Working experience with large XML, WSDL, JSON data models and large data transformations.

Knowledge of big-data processing, developing scalable applications.

Strong working knowledge of SQL and NoSQL databases like Postgres, Mongo DB, and Google Firestore

Implement data validation, integrity constraints, and performance optimization techniques.

Collaborate with front-end developers and other team members to integrate user-facing elements with server-side logic.

Good understanding of caching strategies and working with cache implementations.

Expertise in writing clean, maintainable, and efficient code.

Strong understanding of authentication and authorization strategies with oAuth2.

Strong understanding of developing unit and integration tests.

Proven track record to learn new technologies and work within strict timelines.

Good written and oral communication skills with a knack for working under tight deadlines.

Experience working with large teams and collaborating with multiple stakeholders.

Experience creating technical design documentation, collaborating with other Agile teams.

Stay up to date with emerging trends and technologies in backend development.

Required qualifications to be successful in this role:

Programming Languages:

  • Proficiency in Golang, knowledge of GIN, GORM, and other related frameworks.
  • Proficiency in Python, including knowledge of frameworks like Django or Flask.
  • Experience with Java, Spring Boot, SOAP, and WSDL is a plus.

SQL Databases:

  • Expertise in relational databases such as PostgreSQL and MySQL.
  • Proficiency in database schema design, normalization, and optimization.
  • Advanced SQL query writing and performance tuning.

NoSQL Databases:

  • Extensive experience with NoSQL databases such as MongoDB, Google Firestore, Cassandra, Couchbase, or Redis.
  • Ability to design and manage schemas for NoSQL databases and optimize queries for performance.

APIs and Backend Development:

  • Expertise in designing and implementing RESTful APIs.
  • Experience with WSDL and SOAP-based Web services is a plus.
  • Experience with GraphQL APIs is a plus.
  • Knowledge of designing and deploying microservices architectures.
  • Knowledge of designing and developing with event driven architecture.

Database Management:

  • Proficiency in data modeling and understanding of CAP theorem and eventual consistency.
  • Implementing data validation and integrity constraints.

Performance Optimization:

  • Skills in optimizing backend services for performance and scalability.
  • Experience with caching strategies and tools (e.g., Redis, Memcached).
  • Security:
  • Knowledge of security practices for backend development (e.g., authentication, authorization, encryption).
  • Understanding of common security vulnerabilities and how to mitigate them.

CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit-based performance, CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $89,600.00 - $176,300.00.

CGI Federal's benefits are offered to eligible professionals on their first day of employment to include:

  • Competitive compensation
  • Comprehensive insurance options
  • Matching contributions through the 401(k) plan and the share purchase plan
  • Paid time off for vacation, holidays, and sick time
  • Paid parental leave
  • Learning opportunities and tuition assistance
  • Wellness and Well-being programs

#CGIFederalJob

Required Qualifications To Be Successful In This Role

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team—one of the largest IT and business consulting services firms in the world.

Qualified applicants will receive consideration for employment without regard to their race, ethnicity, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, pregnancy, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity, and gender expression, familial status or responsibilities, reproductive health decisions, political affiliation, genetic information, height, weight, or any other legally protected status or characteristics to the extent required by applicable federal, state, and/or local laws where we do business.

CGI provides reasonable accommodations to qualified individuals with disabilities. If you need an accommodation to apply for a job in the U.S., please email the CGI U.S. Employment Compliance mailbox at US_Employment_Compliance@cgi.com. You will need to reference the Position ID of the position in which you are interested. Your message will be routed to the appropriate recruiter who will assist you. Please note, this email address is only to be used for those individuals who need an accommodation to apply for a job. Emails for any other reason or those that do not include a Position ID will not be returned.

We make it easy to translate military experience and skills! Click here to be directed to our site that is dedicated to veterans and transitioning service members.

All CGI offers of employment in the U.S. are contingent upon the ability to successfully complete a background investigation. Background investigation components can vary dependent upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security clearance requirements, and in accordance with applicable laws, some background investigations may include a credit check. CGI will consider for employment qualified applicants with arrests and conviction records in accordance with all local regulations and ordinances.

CGI will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with CGI’s legal duty to furnish information.

Salary.com Estimation for Software Developer (Back End) in Fairfax, VA
$105,173 to $136,272
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