Note: The job is a remote job and is open to candidates in USA. DNSFilter is a rapidly growing company dedicated to creating a safer internet for businesses and organizations worldwide through innovative network security solutions. They are seeking a Senior Full-Stack Software Engineer to work closely with their Engineering Organization team, modernizing their application and implementing a new design system while delivering high-quality code in a remote environment.
Responsibilities
- Be a member of our Engineering organization working on the front and back end of our software application (Ruby, Golang, React, NextJS, MUI, .NET)
- Work closely with other engineers, the UX team, and other stakeholders to build modularized solutions using our new design system
- Deliver real business value to our customer base
- Expand your knowledge on all technologies within our ecosystem
- Use AI to accelerate your learning and productivity, and an advocate for AI throughout the department
Skills
- 5+ years of experience working Ruby and/or Golang
- 2+ years of experience developing and maintaining JavaScript, React and Redux code
- Experience building microservices or RESTful API's
- Experience building reusable components
- Proven ability to leverage AI tools (e.g., GitHub Copilot, Claude Code, LLMs) to accelerate coding, debugging, and unit test generation while maintaining high standards for security and performance
- Experience integrating AI into the broader SDLC—including documentation, PR summaries, and architectural prototyping—to significantly reduce 'time to context' and repetitive overhead
- Maintains a 'human-in-the-loop' approach to critically audit AI-generated outputs for hallucinations and suboptimal patterns, while mentoring others on responsible AI usage
- Experience using React Query to optimize searches and cache data
- Attention to detail while converting UX designs to a working application
- You will have an API-first mindset, developing components and services that are consumed via interfaces and API contracts
- Experience with PostgreSQL, Redis, Kafka, ClickHouse, and other data stores
- Working knowledge of AWS and EKS
- Experience working remotely under minimal supervision
- The ability to keep work hours that mostly overlap with 8:00 AM - 5:00 PM Eastern Timezone, M-F
- Knowledge or experience with other programming languages, specifically TypeScript, Next.js
- Knowledge of feature flag management tools such as LaunchDarkly
- Experience working with multiple distributed/global teams
- Experience building a security product
- Excellent documentation skills in and out of code
- Awareness of AppSec, OSS licensing, and security tools
- An understanding of computer networking protocols and DNS
Benefits
- Pathway to promotion to additional organizational positions and responsibilities based upon results and performance, not just time in the chair. You help us grow, and we will help you grow.
- Passionate and intelligent colleagues who work hard and have a good time doing it
- Paid company-wide week off at the end of each year
- Flexible Vacation Policy
- Awesome company swag
- Full medical, dental, and vision benefits for US, UK, and Canada-based employees
- Full short-term disability and life benefits; available long-term disability
- Retirement savings account options with vested company matching for qualifying employees
- In-person annual gatherings. Last time we all spent a week on a beach in the Dominican Republic!
Company Overview
DNSFilter provides security via DNS that protects over 4M end users from online security threats using artificial intelligence. It was founded in 2015, and is headquartered in Washington, District of Columbia, USA, with a workforce of 51-200 employees. Its website is https://dnsfilter.com.