Job Title: Senior Software Developer 1 Company Name: BLEN Job Url: https://simplify.jobs/jobs?query=Full+stack&state=North+America&points=83%3B-170%3B7%3B-52&experience=Mid+Level%3BSenior&category=AI%2FML%2FGenAI+Engineering%3BBackend+Engineering%3BFrontend+Engineering%3BFull-Stack+Engineering%3BSoftware+Engineering&jobId=d1fc1f79-7c8c-473f-8746-03f72caf0a8d&workArrangement=Remote Job Description: Senior Software Developer 1 Full Stack Confirmed live in the last 24 hours Unlock job analytics with Simplify+ BLEN 11-50 employees Real-time stock quotes and portfolio tools Compensation Overview $115k - $135k/yr Senior No H1B Sponsorship Washington, DC, USA Remote Contiguous United States only; must be a US citizen or legal resident and able to obtain low-level security clearance. Category Software Engineering (1) Full-Stack Engineering Required Skills Skills that you prefer have been highlighted Express.js JavaScript React.js Git Node.js TypeScript Next.js MongoDB REST APIs Postgres GraphQL DevOps Get referrals → You have ways to get a BLEN referral from your network. Applications through a referral are 3x more likely to get an interview! History 3 events CLOSED Similar job posting Senior Software Developer 1 at BLEN Mar 05, 2026 · 02:35 PM OPENED Similar job posting Senior Software Developer 1 at BLEN Mar 03, 2026 · 04:13 AM CLOSED Similar job posting Senior Mobile Engineer at BLEN Feb 26, 2026 · 02:48 PM Summary Full Job Posting You match the following BLEN's candidate preferences Employers are more likely to interview you if you match these preferences: Degree Experience You have ways to get a BLEN referral from your network. Get referrals → 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 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 Desired Qualifications Prior government contracting experience Experience with cloud platforms (AWS, Azure, or GCP) Hands-on experience integrating AI/ML services or LLM APIs into production applications Familiarity with AI-related patterns such as retrieval-augmented generation, 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 Keyword Match Needs Work - 12 out of 26 found BLEN Website View Company Profile Onvista provides a financial portal that gives private investors access to real-time stock quotes, market data, and financial news. Users interact with the platform by tracking securities through personalized portfolio management tools and using charting features to analyze company performance. Unlike many standalone news sites, Onvista integrates these information services directly with its own online brokerage, allowing users to move from research to trading in one place. The company aims to provide German-speaking investors with all the data and execution tools necessary to manage their own investments independently. Company Size 11-50 Company Stage N/A Total Funding N/A Headquarters Washington DC, District of Columbia Founded 2004