Horizon: Full-Stack Engineer; Senior

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Horizon:
Full-Stack Engineer (Senior) based in the United States.

As a Senior Full-Stack Engineer, you'll help build a next-generation data management and artificial intelligence platform supporting maritime domain awareness. You'll work across frontend applications, real-time and offline data pipelines, databases, and machine learning integrations. The role offers broad technical ownership within a small, collaborative engineering team where individual contributions have visible impact. You'll work with modern technologies including Type Script, React, Next.js,

Node.js, PostgreSQL, WebGPU, MQTT, Redpanda, and Dagster. Your work will involve real-world data and systems used in mission-critical environments. You'll have the opportunity to experiment, improve engineering practices, and contribute directly to products with significant operational impact. The position is fully remote and offers substantial autonomy while maintaining close collaboration with teammates and leadership.

Accountabilities:

• Build and maintain application components, interfaces, and pages across the full technology stack.
• Implement historical and real-time data visualization and processing capabilities, including WebGPU-based data feeds.
• Design, develop, and optimize data models using PostgreSQL and Apache Iceberg.
• Develop and improve real-time data pipelines using technologies such as MQTT and Redpanda.
• Maintain and enhance offline and batch-processing pipelines using Dagster.
• Integrate machine learning models, algorithms, and data-processing capabilities into production applications.
• Improve local development workflows, testing practices, deployment processes, and CI/CD pipelines using modern tooling and Git Hub Actions.
• Collaborate across disciplines to understand complex technical challenges and deliver reliable, performant solutions.
• Take ownership of engineering quality, with a strong focus on correctness, performance, maintainability, testing, and attention to detail.

• Strong professional experience in full-stack software engineering, with the ability to contribute across frontend and backend systems.
• Expert-level proficiency with Type Script and strong experience with modern frontend development.
• Experience with CSS and styling frameworks such as Tailwind CSS.
• Hands-on experience with React and frontend frameworks such as Next.js.
• Familiarity with frontend state-management approaches such as React Context.
• Experience building backend services and APIs using Node.js, GraphQL, and REST.
• Strong proficiency with SQL and PostgreSQL.
• Working knowledge of Docker and Kubernetes.
• Familiarity with Python and its use in software, data, or machine-learning workflows.
• Strong commitment to code quality, including testing, formatting, linting, type safety, and maintainability.
• A performance-oriented mindset and an interest in understanding systems deeply through experimentation, prototyping, and technical investigation.
• Strong communication and teaching skills, with the ability to explain complex technical concepts clearly to different audiences.
• A collaborative, curious, detail-oriented approach and the ability to work effectively in a small team with broad responsibilities.

• Experience working with IoT devices, sensors, or edge-computing systems.
• Experience with digital signal processing.
• Experience with geospatial analysis or GIS.
• Familiarity with monorepo development environments.

• Unlimited paid time off to support rest, recovery, and work-life balance.
• Dedicated sick time.
• Comprehensive medical, dental, and vision coverage.
• 11 paid holidays.
• Professional development opportunities, educational resources, and career-growth support.
• Remote-first work with flexible collaboration through real-time and asynchronous tools.
• A collaborative, flat organizational structure with direct access to leadership and opportunities to influence technical and organizational decisions.
• Opportunities to contribute to mission-driven products with real-world operational impact.
• Growth opportunities within a company in an active expansion phase.
• 401(k) with company match.
• Flexible onsite, remote, or hybrid arrangements where applicable to the position.
• Relocation assistance where applicable.
• Employee referral bonuses.
• Performance bonuses.
• Life insurance and disability coverage.
• Technology and home-office setup stipend.
• Professional certification…