Open since May 2026

Senior Software Developer I - Full StackBLEN · Washington

Senior Software Developer I - Full Stack

WashingtonRemoteFull-time

AI Summary

Senior Software Developer I - Full Stack at BLEN: leads full-stack JavaScript/TypeScript development, designs RESTful APIs and GraphQL endpoints, integrates AI/ML and LLM features, mentors junior engineers, and drives technical strategy for government and business clients.

About this role

About BLEN

BLENers are passionate about using technology to solve real-world problems. For over 20 years, we've been helping government agencies and businesses transform their digital experience. We bring fresh perspectives to every project, from modernizing legacy systems to building cloud-native applications to experimenting with technology that’s just around the corner. We value building long and enduring partnerships to solve complex challenges by putting humans at the center of all the experiences. Our team thrives on turning tricky problems into solutions that are practical, accessible and performant.

About this position

Senior Software Developers at BLEN play a crucial role in creating robust and efficient digital solutions. They combine extensive knowledge of both front-end and back-end technologies, leadership skills, and strategic thinking to guide projects from conception to implementation. Our engineering team makes key technical decisions, communicates clearly with all stakeholders, and leverages cutting-edge technologies to deliver high-quality solutions. They ensure our products meet client needs, align with business goals, and maintain high standards of performance and scalability.

What we would like from you

Technical Leadership and Strategy

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

Software Development and Problem-Solving

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

Team Development and Mentoring

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

Communication and Stakeholder Engagement

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

Process Improvement and Innovation

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

Basic qualifications

Essential Requirements

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

Preferred Skills and Experience

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

Requirement

Must be a US Citizen or legal resident and able to work domestically

Must be able to attain low-level security clearance

Perks

Work from anywhere.

Competitive pay.

A contribution to your health benefit.

The chance to work on high-visibility projects and make a significant impact.

Get to know us

We are a small, creative and highly technical team.

Our heroes are the scrappy folks that dare to dream and do great things. We love people that care more about doing the right thing than taking a shortcut.

We believe in finishing projects and floor our clients by how much we cared about their project.

We believe in integrity and because we're small, we are very selective of our partners and clients.

We do not use phrases like 'human resource' because you are NOT a resource. You are a team member and we will treat you like one.

What you should expect from us

We will treat you fairly.

We give you space to grow both personally and professionally.

We will hear your ideas even when we disagree -- especially when we disagree.

We will be equitable with our success and be honest with our challenges.

We will always tell you the truth. Even when the truth is difficult.

Skills

Agentic WorkflowsAgileAnthropicAWSAzureAzure AICI/CDDockerExpressFastifyGCPGitGitHub ActionsGraphQLJavaScriptMongoDBNext.jsNode.jsOpenAIPostgreSQLPrompt EngineeringRAGReactRESTful APIsSection 508TerraformTypeScriptWCAG