Back to jobs
New

Senior Software Engineer

Annapolis Junction, Maryland

We are seeking an experienced Senior Software Engineer. You will be responsible for providing application development and support to an eco-system of big data apps, in a collaborative environment.

This role resides in our Growth department and reports to our Program Manager. This position is on a customer site in the Annapolis Junction, MD, Washington, DC or Reston, VA location, (to be determined with candidate preference and pending customer approval) with a 10% travel requirement.

SIXGEN supports cyber and intelligence missions by serving government and commercial organizations as they overcome global cybersecurity challenges. Our highly skilled operators conduct research and assessments based on real-world threats. We simulate adversaries and malicious actors to report details and actionable findings on critical assets and infrastructures. Our program planners advise mission owners to bring rapid solutions to intelligence mission leaders. Using innovative processes, tools, and techniques, we predict and overcome cybersecurity vulnerabilities. Our successes are supported by our diverse team of experienced, technical talent. SIXGEN, Inc. is an Equal Opportunity/Veterans/Disabled Employer.

Core Responsibilities:

  • Interacts with customers, PMs, and other development teams to gather, analyze, and define requirements to determine the most effective software and web technologies to satisfy the client's needs. 
  • Develops, maintains, supports, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. 
  • Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, and requirements analysis from system level to individual software components. 
  • Utilizes software engineering and design methodologies appropriate to the development, integration, and enterprise-level production environment.
  • Reviews and tests software components for adherence to the design requirements and documents test results.
  • Designs, creates, tests, and maintains software and web-based applications and content solutions to satisfy customer requirements.
  • Follows a formal design process using formal specifications, data flow diagrams, and adheres to laws, standards, and established guidelines for development and delivery of software and web applications.
  • Designs and develops visually-pleasing, content-rich, user-friendly interfaces with intuitive navigation.
  • Develops and maintains software and web development technical documentation to assist with software and web application maintenance and upgrades.
  • Provides software process management and configuration management throughout the software / web development life cycle.
  • Selects the software development processes in coordination with the customer and system engineering.
  • Recommends new technologies and processes for complex software projects.
  • Ensures quality control of all developed and modified software.
  • Delegates programming and testing responsibilities to one or more teams and monitor their performance.
  • Analyzes and troubleshoots extremely complex software problems and provides solutions using the latest technologies.
  • Integrates new software and web products with existing software and web applications in order to improve the functionality or design of the system.

Required Skills and Experience:

  • 14 years of professional experience, with an equivalent degree in a related technical field
  • Active Top Secret/SCI with CI Polygraph
  • NoSQL/SQL (Mongo, PostgreSQL) familiarity
  • REST APIs, utilizing secure transport methodology
  • CI/CD tool experience (Gitlab, Jenkins)
  • Microservices architecture
  • Java, Spring, Springboot, MongoDB, ElasticSearch
  • Containerization using Docker and Kubernetes

Desired Skills and Experience:

  • Utilizing Cloud Platform Technologies, preferably AWS
  • Big Data Tools (Elasticsearch, Splunk, Nifi, Kafka)
  • Agile/Scrum Experience
  • Experience building and deploying Docker-based applications
  • Familiarity with ETL and AI/ML Concepts.

Additional Details

  • Job Location: Annapolis Junction, MD, Washington, DC or Reston, VA
  • Clearance Requirement: Active TS with a CI polygraph
  • Travel: Estimated 10% or less.

Compensation & Benefits

  • Competitive salary
  • Employer-paid health insurance premiums (medical, dental, vision)
  • Employer-paid short/long term disability insurance and basic life/AD&D insurance
  • 401K with a 4% employer contribution
  • Professional development reimbursement options available (training, certification, education, etc)​
  • Flexible and remote work policies for most positions
  • Paid Time Off (PTO) at a rate of three (3) weeks plus one (1) day per year of service up to four (4) weeks annually
  • 11 paid holidays per calendar year​

At SIXGEN, we are committed to fair and equitable compensation practices. The anticipated salary range for this role is $140,000-$180,000 per year, depending on experience and qualifications. This range reflects our compensation philosophy, which takes into account various factors including the candidate's relevant experience, education, skills, LCATs rates and position level, and market competitiveness. In addition to base salary, employees may be eligible for other forms of compensation to include our growth incentive program, incentives and benefits. The final salary offer will be determined after a thorough review of the candidate's background and alignment with the role. Please note that this range is subject to change and should be considered as a guideline rather than a definitive figure.

We are committed to fostering an inclusive culture that values diversity in our people, reflecting the communities we serve and our customer base. We strive to attract and retain a diverse talent pool and create an environment where everyone is empowered to be their authentic selves at work.

SIXGEN is an Equal Opportunity Employer. We ensure that all applicants are considered for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, age, marital status, ancestry, projected veteran status, or any other protected group or class.

Apply for this job

*

indicates a required field

Resume/CV*

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

Accepted file types: pdf, doc, docx, txt, rtf

Education

Select...
Select...
Select...
Select...
Select...

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in SixGen, Inc.’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Select...
Select...
Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Select...

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Select...

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.