Job Title: Software Engineer (Android // Backend)

The Software Engineer is responsible for designing, developing, and delivering high-quality mobile and web applications with a dual focus on Android application development and backend systems. In this role, you will work closely with cross-functional teams to architect, build, and continuously improve secure, scalable, and high-performance systems. You’ll leverage modern development frameworks and tools, transforming business and technical requirements into efficient, maintainable code while proactively enhancing system performance, availability, and scalability.

Responsibilities:

  • Develop and maintain backend services, APIs, and infrastructure to support operational and IT needs.
  • Design and implement scalable, high-availability solutions for on-premise and cloud environments.
  • Collaborate with engineering and IT teams to understand requirements and implement effective, scalable solutions.
  • Troubleshoot and optimize applications for performance, reliability, and security in self hosted environments.
  • Document software development processes, code changes, and troubleshooting techniques for organizational knowledge sharing.
  • Implement CI/CD pipelines, version control best practices, and automation for on-prem and cloud deployments
  • Stay current with emerging software development trends, tools, and technologies.

Qualifications:

  • Have proficiency and hands-on experience building Android applications in a production environment using: (Kotlin, Jetpack, Compose, Coroutines, Gradle etc.).
  • Have experience building maintainable and testable code bases, including API design and unit testing techniques.
  • Experience working with relational and non-relational databases.
  • Strong understanding of Linux-based systems, networking, and security best practices.
  • Experience with container orchestration tools (Docker Swarm, Kubernetes, or Nomad).

Desired Qualifications:

  • In-depth knowledge of the Android SDK, Android Studio, the Android stack, and software architecture layers, to include experience with Treble and the HAL layers.
  • Familiarity with offline storage, threading, performance tuning, and the use of additional sensors, such as gyroscopes and accelerometers.
  • Experience with self-hosted deployments, or private cloud environments.
  • Proficiency in infrastructure as code tools (Terraform, Ansible, or similar).
  • Published apps on Google Play store.

Key Competencies:

  • Strong problem-solving and troubleshooting skills
  • Expertise in Android development, API integration, backend technologies, networking protocols, and data security
  • Excellent collaboration and communication skills
  • Ability to adapt to dynamic environments and evolving technical requirements

Location/Travel:

  • Based in Washington, DC desired, with some travel required to support client engagements.

Apply for this Job

* Required
resume chosen  
Dropbox Google Drive
(File types: pdf, doc, docx, txt, rtf)
Cancel
cover_letter chosen  
Dropbox Google Drive
(File types: pdf, doc, docx, txt, rtf)
Cancel
When autocomplete results are available use up and down arrows to review
Select a School
Select a Degree
Select a Discipline
+ Add another education

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 Core One’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Please select
Please 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.

Please 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
Please 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.

Enter the verification code sent to to confirm you are not a robot, then submit your application.

This application was flagged as potential bot traffic. To resubmit your application, turn off any VPNs, clear the browser's cache and cookies, or try another browser. If you still can't submit it, contact our support team through the help center.