Senior Fullstack Engineer

Horizon Media•New York, NY

1d•$140,000 - $170,000•Hybrid

About The Position

Horizon Media, founded in 1989 by Bill Koenigsberg, is recognized as one of the most innovative marketing and advertising firms. We are headquartered in New York City, with offices in Los Angeles and Toronto. A leader in driving business solutions for marketers, Horizon is known for its highly personal approach to client service. Renowned for its incredible culture, Horizon is consistently named to all the prestigious annual Best Places to Work lists published by Fortune, AdAge, Crain’s New York Business and Los Angeles Business Journal. Together we are building a place of belonging. At Horizon, we understand the value that different perspectives can bring to our clients and culture, so we strive for an environment where our employees feel welcomed, safe and empowered. We value YOU and believe that your authentic voice and unique perspective allows us to create a more rewarding culture, and experience, together. Our simple recipe for success? We hire talented people (thinkers, doers, dreamers, makers), challenge them and give them every opportunity to grow. As a Senior Front End Software Engineer, you will be responsible for designing and developing scalable front-end applications. You will build modern user interfaces, integrate with backend services, and collaborate with cross-functional teams to deliver secure, reliable, and maintainable software solutions.

Requirements

Bachelor's degree in Computer Science or related field
10+ years developing scalable/ high performant front-end applications
Expert-level proficiency with React.js, JavaScript (ES6+), HTML5, and CSS3
Extensive experience with TypeScript in large-scale applications.
Experience with Next.js
Deep understanding of component-based architecture and reusable UI design.
Experience designing maintainable, scalable front-end architecture.
Experience consuming and integrating REST APIs
Strong understanding of asynchronous programming, Promises, async/await.
Strong understanding of state management patterns (Context API, Redux Toolkit, Zustand).
Experience working with complex JSON data models and API integrations.
Proficiency with Git workflows including branching strategies, pull requests, code reviews, merge conflict resolution, and release management
Experience debugging complex browser, network, and performance issues using modern developer tools.
Experience working in an Agile development environment.
Experience deploying and supporting front-end applications in AWS environments (Amplify, Elastic Beanstalk, CloudFront, Route53, S3, ACM)
Understanding of AWS networking and infrastructure concepts including security groups, load balancers, DNS, SSL certificates, and IAM.

Nice To Haves

Experience designing and implementing micro frontend architecture.
Experience with Module Federation.
Experience with Tailwind
Experience working with the business users or stakeholders to build and test UI components
Experience with creating and consuming registries for ai orchestration.
Experience with application performance monitoring and optimization.
Experience contributing to shared component libraries or design systems.
Knowledge of established coding standards and engineering best practices.
Experience participating in architectural discussions and technical planning.
Next.js
Tailwind
State Management
Experience with integrating Data lakes and platforms such as Databricks /Snowflake/ Redshift/BigQuery

Responsibilities

Design, develop, and maintain scalable front-end applications using React.js, TypeScript, and Next.js
Architect reusable, component-based user interfaces that support long-term scalability and maintainability
Design and implement integrations with REST APIs and complex JSON data models
Build modern, responsive web applications using established front-end engineering best practices
Develop and maintain applications utilizing micro frontend architecture and Module Federation
Collaborate with backend engineers to integrate APIs and deliver end-to-end functionality
Participate in architecture discussions and contribute to technical design decisions
Perform code reviews and contribute to the adoption of engineering best practices
Work closely with product managers, designers, and fellow engineers throughout Agile development cycles
Write clean, maintainable, and well-documented code
Troubleshoot complex browser, networking, and application performance issues
Deploy, maintain, and support front-end applications within AWS environments
Contribute to application performance optimization and overall software quality
Follow established coding standards and contribute to continuous improvement initiatives