Back to jobs
New

Senior Full Stack Software Engineer

Remote

About Us

Red Cell Partners is an incubation firm building and investing in rapidly scalable technology-led companies that are bringing revolutionary advancements to market in three distinct practice areas: healthcare, cyber, and national security. United by a shared sense of duty and deep belief in the power of innovation, Red Cell is developing powerful tools and solutions to address our Nation’s most pressing problems.

ABOUT DEFCON AI

DEFCON AI is a modeling, simulation, and analysis (MS&A) company that provides cutting-edge technology solutions for generating operationally relevant insights for the next generation of logistics and mobility decision making. An AI- driven software incorporating an intelligent agent within a simulation environment — DEFCON is the next driving force in defining how logistics disruptions are handled.

We are a team of mission-focused, world-class AI Engineers, mobility, and logistics experts (and some business folks) who are leveraging big data and cutting-edge technology to develop the next generation of technologies for addressing how our partners can better prepare for contested mobility disruptions. Together, we are building much needed solutions to address our Nation's pressing challenges in the areas of logistics and mobility. 

About the Role

We’re hiring a Senior Full Stack Software Engineer to design, build, and scale modern web applications end-to-end. You’ll work across frontend UI, backend services, APIs, asynchronous processing, and data layers—shipping features that are reliable, secure, and built to last.

This is a senior individual contributor role with real autonomy and real impact. You’ll have end-to-end ownership of features and meaningful input into technical decisions, quality standards, and delivery practices working in a remote-first environment.

Core Tech Stack:

  • Frontend: React 19, TypeScript, Vite-based React apps, Tailwind CSS, SignalR
  • Backend: .NET 9 (C#), Minimal APIs, Entity Framework Core
  • Async Processing: RabbitMQ, Redis (for scale-out and caching)
  • Data and Storage: PostgreSQL, Amazon S3

What You’ll Do

  • Shape the product architecture end-to-end. You’ll design and ship modular .NET services and modern React frontends that stay fast, reliable, and elegant across a wide range of real-world customer environments.
  • Own the data foundation. You’ll design high-performance PostgreSQL schemas and craft EF Core queries that serve as the source of truth for business logic, permissions, and RBAC—balancing correctness, clarity, and scale.
  • Engineer for performance at scale. You’ll build smart caching layers with Redis and leverage S3 for large artifacts, keeping our Web Gateway lean, responsive, and built to grow.
  • Drive technical direction through RFCs. You’ll author and collaborate on design proposals that define data contracts and API boundaries, making our .NET platform and Python-based solver runners work together seamlessly.
  • Ship with product and design, not in a silo. You’ll partner closely with product and design to turn real customer problems into thoughtful technical solutions—and deliver them in tight, iterative releases.
  • Use AI as a force multiplier (responsibly). You’ll leverage tools like Claude Code and GitHub Copilot/Cursor to move faster and refactor with confidence, while keeping security, quality, and maintainability non-negotiable.
  • Hold the quality bar high. You’ll help set the standard through great code reviews, automated testing, and pragmatic engineering practices that keep the codebase a joy to work in.

What We’re Looking For (Required)

  • 8+ years of professional software engineering experience delivering production web applications.
  • Strong full stack experience shipping user-facing features end-to-end across frontend, backend, and data layers.
  • Deep expertise in React and TypeScript, including component architecture, hooks, and performance optimization.
  • Experience building and maintaining modern React applications (Vite, Tailwind CSS and client-side data fetching patterns).
  • Strong backend experience with C# and modern .NET (.NET 9 or similar), including API design with Minimal APIs and secure development practices.
  • Strong experience with PostgreSQL, including schema design, indexing strategies, and query optimization.
  • Hands-on experience with Entity Framework Core, including writing efficient queries and managing migrations.
  • Experience designing and operating asynchronous workflows (RabbitMQ) and implementing caching strategies (Redis).
  • Experience building real-time UI updates using SignalR.
  • Experience working with AWS, especially object storage in Amazon S3.
  • Solid understanding of authentication or authorization patterns including application-level RBAC (e.g., JWT, OAuth/OIDC concepts).
  • Strong written and verbal communication skills, including the ability to collaborate effectively in a remote environment.

Nice to Have (Preferred)

  • Experience integrating .NET services with Python-based systems and designing stable data contracts between services or teams.
  • Experience with Docker and container orchestration (Kubernetes).
  • Observability and performance tooling experience (OpenTelemetry, Application Insights, Datadog, Grafana/Prometheus).
  • GraphQL experience (in addition to REST).

Other Qualifications

  • Analytical Aptitude: Possess keen analytical and problem-solving skills, coupled with the capability to understand complex software challenges and collaborate toward viable solutions. 
  • Effective Communication: Skilled in distilling technical complexities into comprehensible terms for varied audiences. 
  • Adaptive Nature: Resilience and adaptability in the face of an ever-changing tech landscape, with a knack for rapidly integrating new technologies and methodologies. 
  • Agile Methodology Experience: An understanding and hands-on experience with agile development methodologies and version control tools. 
  • Agility in Tech: Demonstrated adaptability in the fast-paced tech landscape, continually embracing and integrating new technologies and methodologies. 
  • Education: While formal education in Computer Science or related fields is a plus, DefconAI values hands-on experience and demonstrable skills above all. Candidates with 6+ years of relevant experience will be considered regardless of their academic pedigree. 
  • Continuous Learner: A commitment to perpetually update one's skill set, staying aligned with the latest in technology trends and best practices. 

What We Offer: 

  • A fully remote, results-based environment
  • Competitive salary, bonus, and equity package
  • 100% employer paid, comprehensive health insurance including medical, dental, and vision for you and your family
  • Unlimited PTO, with your manager’s approval
  • Flexible work environment where you manage your work day
  • 14 weeks of fully-paid parental leave

Salary range: $155,000-$215,000. This represents the typical salary range for this position based on experience, skills, and other factors.

 

#LI-RCP

 

 

We’re an Equal Opportunity Employer: You’ll receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or on the basis of disability.

Create a Job Alert

Interested in building your career at Red Cell Partners? Get future opportunities sent straight to your email.

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

Select...
Select...
Select...
Select...
Which cloud platforms have you deployed to in production? *
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 Red Cell Partners’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.