[Hiring] Mid-Level Software Engineer @Core4ce

Role Description

We are seeking a backend-focused Software Engineer to help build a modeling and decision-support application for the Defense Health Agency (DHA). The platform enables planners to explore complex healthcare-system scenarios through data integration, simulation, and interactive analysis. This is a hands-on software engineering position for someone who enjoys working across the full software development lifecycle.

The Software Engineer will:

• Design backend services, build data and simulation pipelines, contribute to cloud architecture, and carry features from initial requirements through deployment and demonstration.
• Own software features from initial design through implementation, testing, deployment, and ongoing improvement.
• Design and build Python services, APIs, data-processing workflows, and simulation capabilities.
• Develop modeling logic in collaboration with subject-matter experts and integrate that logic into a production application.
• Build and maintain cloud-native workflows using AWS services such as Lambda, Step Functions, SQS, and S3.
• Work with different compute and deployment models based on performance, scalability, and security needs.
• Design and maintain data pipelines that ingest, validate, transform, enrich, and publish source data.
• Develop APIs and backend application functionality using Python and FastAPI.
• Work with PostgreSQL, SQLAlchemy, and Alembic to design schemas and manage database changes.
• Contribute to a Next.js frontend when needed, while primarily focusing on backend and platform development.
• Build and maintain automated delivery workflows using GitLab CI/CD and GitHub Actions.
• Package and deploy applications using Docker.
• Apply DevSecOps practices such as automated testing, code review, dependency management, security scanning, observability, and infrastructure as code.
• Participate in architectural and technical design decisions.
• Demonstrate completed capabilities to users and incorporate their feedback into future development.
• Diagnose challenging technical problems across application code, data, infrastructure, and deployment environments.

*This position is designed to be flexible, with responsibilities evolving to meet business needs and enable individual growth.

Qualifications

• Approximately 3–5 years of professional software engineering experience, or equivalent demonstrated ability.
• Ability to obtain and maintain a Secret clearance.
• Strong professional experience developing production software in Python.
• Experience designing backend services, APIs, data-processing systems, or other complex software.
• Working knowledge of relational databases and SQL.
• Experience with automated testing, source control, code review, and modern software engineering practices.
• Ability to independently own features while collaborating effectively with engineers, users, and subject-matter experts.
• Ability to communicate technical decisions and demonstrate working software to users.

Requirements

• Experience with AWS, particularly Lambda, Step Functions, SQS, S3, or comparable cloud services.
• Experience building cloud-based data pipelines.
• Experience with FastAPI or a similar Python web framework.
• Experience with PostgreSQL, SQLAlchemy, and Alembic.
• Experience designing distributed, asynchronous, or event-driven systems.
• Experience with Docker and containerized application development.
• Experience creating CI/CD pipelines with GitLab CI/CD or GitHub Actions.
• Familiarity with infrastructure as code, application observability, and automated security scanning.
• Experience with TypeScript, React, or Next.js.
• Experience working directly with users to refine requirements and demonstrate software.
• Experience translating domain-expert knowledge into maintainable software logic.
• Experience with discrete-event simulation, SimPy, mathematical modeling, operations research, or other analytical modeling techniques.
• Familiarity with Kubernetes or another container-orchestration platform.

Benefits

• 401(k) with 100% company match on the first 6% deferred, with immediate vesting.
• Comprehensive medical, dental, and vision coverage—employee portion paid 100% by Core4ce.
• Unlimited access to training and certifications, with no pre-set cap on eligible professional development.
• Tuition assistance for job-related degrees and courses.
• Paid parental leave, PTO that grows with tenure, and generous holiday schedules.
• The Forge gives every employee the chance to propose bold innovations and help bring them to life with internal backing.