Full Stack Javascript Engineer Jobs (NOW HIRING)

Job Summary:
BLEN is a company passionate about using technology to solve real-world problems, helping government agencies and businesses transform their digital experiences. The Senior Software Developer plays a crucial role in creating robust digital solutions by combining front-end and back-end technologies, leading projects, and ensuring high standards of performance and scalability.
Responsibilities:
• Collaborate with management, product, and design teams to shape development vision and strategy, including the adoption of AI-powered tools and workflows
• Guide cross-functional teams in delivering high-impact, full-stack JavaScript solutions aligned with client goals
• Contribute to the implementation of the program's development strategy with a focus on modern architectures (React, Next.js, Node.js, TypeScript)
• Maintain a high-level understanding of adjacent technical areas including cloud-native services, AI/ML integrations, and API ecosystems for effective system integration
• Demonstrate expertise, accountability, and ownership of contributions across the full stack, from responsive front-end interfaces to scalable back-end services
• Leverage deep knowledge of the JavaScript/TypeScript ecosystem to lead iterative, outcome-driven development
• Design and integrate RESTful APIs, GraphQL endpoints, and emerging AI-assisted features such as LLM-powered workflows, intelligent document processing, or retrieval-augmented generation (RAG)
• Diagnose and effectively resolve issues with owned systems, using incidents to inform educational opportunities and system improvements
• Make critical decisions to keep projects on track and aligned with evolving client needs, including evaluating when and how to leverage AI/ML capabilities responsibly
• Actively mentor and assist more junior engineers in developing their skills across modern JavaScript frameworks and AI-augmented development practices
• Build and maintain strong relationships with internal and external stakeholders
• Participate in technical interviews with new candidates
• Foster a culture of continuous learning around emerging technologies including generative AI, prompt engineering, and agentic architectures
• Effectively communicate technical issues and developments with team members and clients, translating complex AI and engineering concepts into clear, actionable language
• Present design documents, system diagrams, and technical proposals to clients, stakeholders, partners, and other engineers
• Serve as the discipline's primary technical lead when working with stakeholders
• Drive improvements in software engineering processes and practices, including adoption of AI-assisted development tools (Copilot, Claude, automated testing)
• Propose and evaluate multiple approaches to technical and process problems, leveraging data-driven insights where possible
• Champion best practices in modern JavaScript development, cloud architecture, CI/CD pipelines, and responsible AI integration
• May lead small, less critical, or temporary team structures and projects
Qualifications:
Required:
• Bachelor's degree and 7+ years of software engineering experience
• 5+ years of professional JavaScript/TypeScript development across the full stack
• Strong experience with React (or Next.js) for building modern, responsive front-end applications
• Proficiency with Node.js and server-side JavaScript frameworks (Express, Fastify, or similar)
• Experience designing and consuming RESTful APIs and/or GraphQL
• Familiarity with relational and/or NoSQL databases (PostgreSQL, MongoDB, etc.)
• Strong problem-solving skills and ability to debug complex issues across the full stack
• Proficiency in version control systems (Git) and modern CI/CD workflows
• Must be a US Citizen or legal resident and able to work domestically
• Must be able to attain low-level security clearance
Preferred:
• Prior government contracting experience
• Experience with cloud platforms (e.g., AWS, Azure, or GCP)
• Hands-on experience integrating AI/ML services or LLM APIs (OpenAI, Anthropic, Azure AI) into production applications
• Familiarity with AI-related patterns such as retrieval-augmented generation (RAG), prompt engineering, or agentic workflows
• Knowledge of DevOps practices and tools (Docker, Terraform, GitHub Actions)
• Experience with Agile development methodologies
• Familiarity with accessibility standards (Section 508 / WCAG) in government contexts
• Ability to obtain a Public Trust Clearance
Company:
| Delivering Digital Transformation in Federal Agencies, Focusing on Enhancing Collaboration and Advancing Healthcare Innovation. Founded in 2004, the company is headquartered in Washington, USA, with a team of 11-50 employees. The company is currently Early Stage.