Full Stack JavaScript Developer (Data & Search Focus)

Location: St. Louis, MO (On-site)
Clearance: TS Required / TS/SCI Preferred
Position Overview
Metric5 is seeking a motivated Full Stack JavaScript Developer to join a highly visible mission project for our NGA customer.
In this role, your primary focus will be designing, building, and maintaining robust web applications using React, Node.js, NestJS, and TypeScript within a modern cloud-native ecosystem. You will also assist with integrating, optimizing, and supporting the application's underlying data streaming infrastructure, CDC pipelines, and OpenSearch capabilities. You will work closely with cross-functional Agile teams, test engineers, and product stakeholders to ensure high application performance, seamless UX, and reliable data accessibility.
Key Responsibilities

• Create fast, accessible, and responsive user interfaces using React, Material-UI, and Redux Toolkit.Develop robust REST APIs with NestJS and TypeORM backed by relational databases (MariaDB/MySQL) and search platforms (Opensearch, Solr).
• Write clean, maintainable code backed by automated unit and integration tests using modern JavaScript testing frameworks (Vitest, Jest, Testing Library).
• Deploy and support applications on OpenShift/Kubernetes managed via Helm charts and ArgoCD within a GitOps workflow.
• Contribute to the tuning of OpenSearch indexes and data pipelines to maintain fast, scalable data retrieval for NestJS services.Assist with maintaining and monitoring real-time Change Data Capture (CDC) and streaming data pipelines (Debezium, Apache Kafka, Apache Flink, Vector) that feed system search engines.
• Support the integration of semantic/vector search features (e.g., OpenSearch k-NN) and data enrichment workflows to power advanced application analytics.

Required Qualifications & Skills

• Experience: 7+ years of software engineering experience with a focus on web application development.
• 7+ years with TypeScript and modern JavaScript (ES6+).
• 7+ years with React, state management (Redux Toolkit), routing, and UI libraries (Material-UI).
• Strong knowledge of HTML5, CSS3, Vite, and responsive design patterns.
• 7+ years with Node.js and server-side frameworks (preferably NestJS).
• Experience with ORMs (TypeORM) and relational databases (MariaDB / MySQL).
• Proficiency in using AI development tools (e.g., GitHub Copilot) to write, test, and refactor clean code efficiently.
• Hands-on experience designing RESTful APIs and documenting with OpenAPI/Swagger.
• Practical experience querying and integrating OpenSearch or Elasticsearch.
• Baseline understanding of event-driven architectures and data streaming (Kafka, CDC/Debezium).
• At least 3 years of experience in an Agile/SAFe/Scrum environment building enterprise products.
• Experience with Docker, Kubernetes/OpenShift, Helm, or GitOps deployment workflows.
• Security+ Certification

Desired Skills

• Exposure to vector databases (OpenSearch k-NN), semantic search, or AI model integration.
• Hands-on exposure to Apache Flink or Vector data routers.
• Experience with OpenTelemetry, Grafana, Redis caching, and authentication patterns (OAuth2/OIDC, Keycloak, JWT).
• SAFe certification

Education: Bachelors in a Technical Discipline - Computer Science, Mathematics, or equivalent technical degree (Desired not required)
Years of Experience: 7+ years of experience or more
Salary Range:$140,000 to $170,000 annually
About Metric5
Metric5 is a small business with big company benefits. We have a passionate team of smart, fun, caring professionals, and we are here for the long haul. Join our growing team in a business where your contributions make an enormous impact. Our organization offers a comprehensive employee benefits package, continuous professional development, with a best in class company culture that is enjoyable to work in and supports the growth of each of our professionals.
Our benefits include:

• Health & Dental Insurance with 100% of individual coverage paid for by the company
• Vision Insurance
• Life & Short Term Disability Insurance
• 401K with company match (employees are immediately vested)
• Paid Vacation
• 9 Paid Holidays per year (plus 2 paid floating holidays)
• Parental Leave
• Employee Bonuses
• Professional Development Reimbursement Program
• Tuition Assistance Program

Metric5 is an Equal Opportunity Employer. All qualified applicants will receive consideration
for employment without regard to race, color, religion, sex, sexual orientation, gender identity,
national origin, disability, or status as a protected veteran.