Job Closed
This listing is no longer active.
Founded in 2017 to keep people and their loved ones safe, Citizen offers a free safety app that provides alerts from verified 911 data not previously available
Senior Fullstack Engineer
Location
United States
Posted
130 days ago
Salary
$200K - $225K / year
Seniority
Senior
Job Description
Senior Fullstack Engineer
Citizen App
• Thrive in an environment where adaptability, speed, and impact are at the core of everything we build. • Design and build systems for scale, modularity, and flexibility – without compromising on high availability, low latency, and scalability. • Take operational responsibility for the services you build. A strong owner's mindset is essential. • Collaborate closely with a multidisciplinary team of product managers, designers, and engineers to deliver a consistent real-time experience for our users. • Maintain rigor in code quality, best practices, and code reviews, while balancing product tradeoffs. • Balance development across multiple codebases and systems, working with roughly a 60/40 split between frontend and backend development.
Job Requirements
- Proven experience building performant and delightful web applications.
- Experience working with Javascript and a modern web framework (React, Vue, Ember, Angular, etc).
- Some experience with backend API development (Node or Go experience ideal).
- A track record of demonstrable ownership and technical leadership.
- 5+ years of engineering experience, focusing primarily on full stack development
- Bachelor’s Degree in Computer Science or related field, or equivalent practical experience.
Benefits
- At least one fully employer-sponsored medical plan option
- Dental and vision coverage, with a small employee contribution
- Unlimited PTO
- Up to 14 weeks paid parental leave (for all parents)
- Monthly tech stipend
- Free mental health support
- Hybrid work environment + catered lunches (NYC HQ)
Related Guides
Related Job Pages
More Full-stack Engineer Jobs
• Design and implement effective user interfaces for agent role definitions, interactive prompts, response setups, and message templates. • Collaborate closely with technical leadership to align interface designs with product vision and user needs. • Incorporate user feedback into iterative design improvements. • Develop advanced backend functionalities for batch message processing and sophisticated user interactions. • Conduct thorough testing, debugging, and ensure high-quality software deployments. • Create comprehensive documentation, user manuals, and guides for effective knowledge sharing. • Mentor junior team members, fostering collaboration and skill development.
• The Test Automation Technical Lead is a technical professional responsible for designing, developing, and evolving test automation frameworks and automation solutions for modular and microservices-based systems. • This position combines strong hands-on automation work with technical leadership, guiding QA teams and collaborating with multidisciplinary teams to ensure robust, scalable, and high-quality test automation. • The professional will work with modern tools such as Playwright, Node.js, and AI/LLM-based solutions, as well as promote best practices in CI/CD, Agile, and SAFe. • Lead, mentor, and develop test automation teams, fostering collaboration and high performance.
Senior Software Engineer
MangomintNext-generation software for salons and spas, helping them reduce overhead costs and modernize the client experience.
• Develop new features across the whole stack, including data design, backend APIs, frontend React UI, mobile, and HTML/CSS • Work deeply with external integrations and third-party services, ensuring reliability and observability • Support the scaling of our systems as we grow and acquire new customers, and improve engineering standards, tooling, and processes to enable rapid development and iteration • Troubleshoot and debug production issues across various services and layers of the stack, ensuring a stable, efficient, and resilient system for our customers
Full Stack Developer, MERN, LLMs
Wing AssistantWe're the World's Best Assistant. Hit "Learn More" to speak to an expert about transforming your business! 🚀
• Build responsive, user-friendly interfaces using modern JavaScript frameworks (React, Vue, etc.) • Collaborate with designers to implement intuitive UI/UX features and ensure consistent brand/application look and feel • Optimize web pages for performance, accessibility, and cross-browser compatibility • Develop RESTful or GraphQL APIs using Node.js, Python, PHP, or similar back-end technologies • Design and maintain databases (SQL or NoSQL) to ensure efficient data storage, retrieval, and scalability • Work with AI/ML teams to integrate model outputs, leveraging microservices or serverless architectures as needed • Implement third-party integrations (payment services, cloud providers, or AI APIs) to enhance platform capabilities • Partner with ML/AI Engineers to surface AI-driven insights and automate domain-specific tasks • Contribute to system design discussions, ensuring the front end, back end, and data layers cohesively meet product requirements • Assist in setting up continuous integration and delivery pipelines (e.g., GitHub Actions, Jenkins, GitLab CI) • Deploy and manage containerized services (Docker, Kubernetes) in cloud environments (AWS, Azure, GCP) • Monitor application health, implement logging, and handle on-call duties for mission-critical issues • Work in short, iterative development cycles to quickly prototype new features, gather feedback, and refine solutions • Be prepared to pivot quickly based on user feedback or changes in the product direction • Follow secure coding guidelines and employ best practices like input validation, encryption, and role-based access control • Collaborate with the team to ensure compliance with data protection policies (GDPR, HIPAA, etc.) as required by specific domains • You will be working with LLMs to produce qualitative and quantitative evaluations on content




