Affinity

4524 Full Stack Developer

Affinity$110K — $130K *
Technical Services
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years as a Full Stack Developer or equivalent experience.
  • Proficient in Python backend development (Django, FastAPI, or similar).
  • Experienced in frontend development using React, Next.js, or Vue.js for production environments.
  • Skilled in RESTful API design and schema validation practices.
  • Deep understanding of PostgreSQL including schema design and optimization.
  • Familiar with AWS operations in classified environments.
  • Proficient using Terraform for infrastructure management.

Responsibilities

  • Design and deliver complete applications from database to user interface.
  • Extend and enhance existing Django-based API gateways.
  • Build new React dashboards for operational workflows.
  • Write migration scripts for legacy data into PostgreSQL.
  • Implement Keycloak authentication for new services.
  • Ensure secure application development in classified environments.
  • Utilize AI-assisted development tools as part of daily workflow.

Benefits

  • Work within a small, focused team with significant delivery expectations.
  • Opportunity for hands-on work with emerging technologies like AI and generative capabilities.
  • Engage in a variety of tasks that span both backend and frontend development.
  • Exposure to secure development practices in a high-stakes environment.
Full Job Description
4524 Full Stack Developer
4524 | TS/SCI

Job Description:

OVERVIEW:

We are seeking a talented and motivated Full Stack Developer to join our team. In this role, you will design and deliver complete applications; from database schema to API layer to the interface a mission user opens every morning. The team supports an established platform application while simultaneously standing up pilot solutions and custom MVPs for emerging requirements. On any given week, you might be extending a Django-based API gateway, building a new React dashboard for an operational workflow, writing migration scripts to bring legacy data into a modern PostgreSQL schema, or wiring up Keycloak authentication for a new service.

This is full stack work in the truest sense. We need engineers who move fluidly between backend logic and frontend polish, who care as much about a clean component hierarchy as they do about a well-indexed query, and who understand that in classified environments, every design decision carries security implications.

The team deploys across multiple AWS partitions and classification levels. You will work with Terraform for infrastructure, GitLab for source control and CI/CD, and AI-assisted development tooling as a standard part of your workflow - not as an experiment, but as an expectation.

GENERAL DUTIES:

  • We are looking for people who take ownership of their code, their commitments, and their mistakes. People who communicate clearly, ask questions early, and push back when something does not make sense.
  • Attention to detail is critical. When you are writing applications that operate in classified environments, a missed edge case in an auth flow or a carelessly scoped IAM policy has real consequences. We want engineers who are meticulous by nature, not by mandate.
  • Work ethic matters. This is a small team with significant delivery expectations. We need people who are self-directed, who do not wait to be told what to do next, and who take pride in shipping clean, well-tested, well-documented work.
  • Familiarity with intelligence community environments and the operational context of DoW mission systems is valuable, though the platform abstracts much of the domain-specific complexity. What matters more is intellectual curiosity about the problem space and the adaptability to work across unfamiliar domains without needing everything spelled out.


REQUIRED QUALIFICATIONS:

  • 5 years of experience as a Full Stack Developer or equivalent experience with any combination of the following:
    • Python backend development (Django, FastAPI, or equivalent; async/ASGI; modern Python 3.12+)
    • Frontend development with React, Next.js, Vue.js or equivalent (production UIs, not prototypes)
    • RESTful API design including BFF patterns and schema validation
    • PostgreSQL - schema design, query optimization, migrations, data loading
    • AWS - deploying and operating applications across classified partitions and regions
    • Terraform for infrastructure-as-code
    • Keycloak, OIDC, SAML, or CAC/PIV authentication integration
    • Secure application development for STIG-hardened, FIPS-validated environments
    • GitLab CI/CD pipelines and Git-based workflows
    • DevSecOps scan interpretation and remediation (SAST, DAST, SCA, SBOM, container scanning)
    • AI-assisted development tooling in daily practice


DESIRED QUALIFICATIONS:

  • Incorporating generative AI capabilities into applications (RAG pipelines, LLM integration, or embedding-based search)
  • Migrating legacy systems and data sources into modern cloud-native architectures
  • Container orchestration with Kubernetes/EKS and Helm
  • Hardened container supply chains and FIPS-validated image pipelines
  • NIST 800-53 security controls and their practical application to software design
  • Multi-classification or cross-partition deployment architectures


CLEARANCE:

  • Active TS/SCI clearance minimum required


Job Details

City : Suitland

State : Maryland

About Affinity

Affinity’s patented technology structures and analyzes millions of data points across emails, calendars, and third-party sources to offer users the tools they need to automatically manage their most valuable relationships, prioritize important connections, and discover untapped opportunities. Affinity uses artificial intelligence to analyze relationship strength and illuminate the best paths to warm introductions. The platform also offers a holistic view of users’ networks in a centralized, automatically updated database without any manual upkeep. Founded in 2014, Affinity is headquartered in San Francisco, California. Affinity has raised $120M to date and is backed by leading investors including Menlo Ventures, Advance Venture Partners, 8VC and MassMutual Ventures. It has over 2,700 customers in 70 countries, including venture capital firms such as Bain Capital Ventures and Kleiner Perkins, private equity firms such as SoftBank Group, investment bankers such as Woodside Capital Partners, financial services firms such as Fidelity Investments, real estate companies such as Tishman Speyer, insurers such as American Family Insurance and enterprises such as Nike, Qualcomm and Twilio. Affinity has been named in Fortune Magazine's Best Workplaces, Inc. Magazine's Best Workplaces and editor's number one pick, the Data Breakthrough Award, BIG Innovation Award and others.
Learn more about Affinity
Size
1,000 employees
Industry
Founded
2014

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