Senior AI Platform Developer | Secure SaaS OpenSearch Lead

Kids for the Future; Foster (VA); Hybrid; USD 150,000 - 210,000; Full time

Job summary

NexTech Solutions in Northern Virginia is seeking a Senior Developer to design, develop, test and maintain production capabilities of Stronghold, a secure AI-enabled SaaS platform. You will help build cloud-based applications and lead on-site technical efforts.

The ideal candidate has 10+ years of software experience, including TypeScript and Node, with expertise in lexical and vector search, secure environments, and mentoring junior engineers in fast-paced teams.

Qualifications

• 10+ years of relevant experience.
• 5+ years in software development, search engineering, or related discipline.
• Experience with TypeScript and Node.
• Understanding of lexical search, vector search, semantic search, metadata filtering, and hybrid retrieval.
• Experience working in secure or restricted environments.
• Strong troubleshooting, communication, and stakeholder management skills.

Responsibilities

• Design, develop, test and maintain production capabilities across the Stronghold platform.
• Design and implement AI-enabled capabilities including RAG, information extraction, search, report generation and agentic-driven workflows.
• Develop modern web application functionality across front-end/back-end and supporting services.
• Review code and designs, providing feedback focused on security, maintainability and simplicity.
• Mentor junior engineers and act as the on-site technical authority.

Skills

10+ years experience

5+ years experience in software dev /

Education

Bachelor’s degree or equivalent

Tools

OpenSearch/Elasticsearch

Microsoft Graph/SharePoint/OneDrive

Azure storage

Security features

Job description

NexTech Solutions in Northern Virginia is seeking a Senior Developer to design, develop, test and maintain production capabilities of Stronghold, a secure AI-enabled SaaS platform. You will help build cloud-based applications and lead on-site technical efforts.

The ideal candidate has 10+ years of software experience, including TypeScript and Node, with expertise in lexical and vector search, secure environments, and mentoring junior engineers in fast-paced teams.