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Tech Lead Full-Stack Rails Engineer

Mitre Media · USA, Canada, USA timezones · $170k - $200k · via remotive
65
Open listing

Fit analysis

The candidate possesses exceptional full-stack architecture skills, deep experience in B2B e-commerce, and complex data management that is highly transferable. However, the complete lack of demonstrated expertise in Ruby or Rails—the core required technology—is a significant risk.

Where you fit

  • Full-Stack Development: Proficient across modern stacks (Next.js, React, Node.js) demonstrating capability to build complex user portals and backends.
  • Database Management: Extensive experience with PostgreSQL for managing large, complex e-commerce data flows and centralizing customer information.
  • B2B E-commerce Architecture: Proven ability to architect and deploy high-performance headless B2B storefronts (Next.js/Shopify), directly relevant to Mitre's portfolio sites.
  • Complex Data Integration: Expertise in integrating disparate systems using GraphQL (Hasura) and managing data flows from live sources like blockchain nodes, showing mastery of microservices concepts.
  • Infrastructure Scaling & Reliability: Demonstrated ability to design and implement scalable infrastructure for large-scale rollouts while ensuring zero disruption to live production operations.
  • Technical Leadership/Process Improvement: Proven track record of driving measurable operational improvements (e.g., 30% improvement in B2B quote accuracy) and leading complex projects.

Where you may struggle

  • Core Language Mismatch: The job requires expert-level Ruby and Ruby on Rails, which the candidate has no demonstrated experience with; this is the most critical gap.
  • Required Backend Tools: There is no evidence of using Elasticsearch or Redis, both of which are explicitly required for search and caching in the role.
  • AI Integration Specifics: While the candidate handles complex data pipelines, there is no explicit experience integrating LLMs, NLP models, or utilizing specific frameworks like LangChain or Anthropic APIs.
  • Front-End Framework Preference: The JD emphasizes Hotwire/StimulusJS; the candidate's primary front-end strength lies in React/Next.js, which represents a different architectural paradigm.

Cover letter

Job description
About Mitre Media 
 Mitre Media is redefining FinTech with AI-driven tools that empower millions of investors. Our portfolio, including Dividend.com and MutualFunds.com, leverages LLMs to deliver novel data insights and visually rich user experiences. For over a decade, we’ve served individual investors, financial advisors, and top asset managers like BlackRock and Vanguard through our premium data, tools, and advertising solutions. Join our lean, entrepreneurial team to shape the future of AI-powered investing from your location ±3 hours from Eastern Time. 
 Our users are deeply engaged, spending over 5 minutes per visit with a bounce rate below 10%, researching investments across hundreds of different categories. With 40 million brokerage accounts in the U.S., we take pride in building tools that make a real impact, fostering a culture of trust, innovation, and dynamism. If you’re passionate about financial technology and AI, we’d love to connect! 
 About the Role 
 As a Full-Stack Rails Tech Lead, you’ll architect and implement LLM-powered web applications within our microservices-based Rails 8 platform. Reporting directly to our CTO, you’ll collaborate with a small, high-impact team to deliver user experiences across Dividend.com, MutualFunds.com and other brands within our portfolio. This role combines expert Ruby on Rails skills with AI integration expertise, requiring you to leverage LLMs in your development workflow, state management and user interactions. 
 You’ll work in a remote-first hybrid environment, which encourages in person collaboration, using ShapeUp to manage projects that trade-off on-time delivery for de-scoped outcomes. As a technical leader, you'll have a seat at the table shaping system architecture, implementing core features all while embracing an entrepreneurial mindset and a “get things done” mentality. 
 Responsibilities 
 Architect and maintain Rails applications (Rails 8) 
 Integrate LLMs into our microservices architecture for state management and real-time user experiences. 
 Enhance front-end experiences with Hotwire, StimulusJS, or React, ensuring seamless AI-driven interactions. 
 Optimize LLM inference for low latency and cost, using caching and asynchronous processing. 
 Required Technical Skills 
 Back-End 
 Ruby (5+ years, expert-level) 
 Ruby on Rails (Rails 6-8 preferred) 
 PostgreSQL (or MySQL) 
 Elasticsearch 
 Redis 
 Docker 
 Front-End 
 StimulusJS or JavaScript ES6 
 Tailwind CSS 
 HTML 
 HTTP 
 AI Integration 
 Experience integrating AI/ML models (e.g., LLMs, NLP) with web applications 
 Familiarity with LLM frameworks (e.g., LangChain, Hugging Face) or APIs (e.g., xAI, Anthropic) 
 Nice-to-Have Technical Skills 
 Kubernetes for microservices orchestration 
 React for advanced front-end components 
 Graph databases for complex financial data 
 Contributions to open-source RoR or AI projects 
 Required Soft Skills 
 Entrepreneurial mindset with a passion for AI and FinTech 
 Natural leader who mentors and inspires teammates 
 Problem-solver with a “get things done” mentality 
 Excellent communication, thriving in remote and cross-team collaboration 
 Attention to detail, ensuring clean, maintainable code 
 Team player comfortable as an individual contributor 
 Why Join Us? 
 Impactful Work : Build AI-powered tools that help millions of investors make informed decisions from data-driven insights. 
 Cutting-Edge Tech : Work with Rails 8, LLMs, and modern tools like Hotwire, Databricks, and xAI’s API in a microservices architecture. 
 Autonomy and Influence : Collaborate directly with our CEO and CTO to shape our AI-driven platform, with freedom to innovate. 
 Competitive Compensation : $160,000–$200,000 CAD/USD (based on experience) and benefits. 
 Remote Flexibility : Remote-first (±3 hours from ET) with hybrid in office collaboration in Toronto or NYC 
 Growth Opportunities : Budget for AI and Rails conferences (e.g., NeurIPS, RailsConf), plus access to cutting-edge AI tools for experimentation. 
 Dynamic Culture : Join a small, no-ego team passionate about trust, innovation, and making a difference in FinTech. 
 About Mitre Media’s AI-Driven Platform 
 Mitre Media powers premium financial brands like Dividend.com and MutualFunds.com with the Mitre Platform. This platform integrates traditional content management, financial data, first-party data, ad revenue, and subscription tools, all enhanced by LLMs for rich, user-focused experiences. Our data-derived insights delight users, while our advertising solutions deliver unmatched performance for partners like BlackRock and Vanguard, leveraging advanced targeting and first-party data. 
 How to Apply 
 Submit your resume, GitHub profile, and a brief note on why you’re excited about building AI-driven FinTech to [email protected].

Questions from the bot

Do you have hands-on experience with Elasticsearch? If so, what type of indexing or search functionality did you implement?
Can you describe your experience using Redis in a production environment? For example, for session management or rate limiting?
Have you integrated any LLM APIs (like OpenAI, Anthropic, etc.) into a web application workflow? If so, what was the use case?

Timeline

2026-10-19 02:42:56
scored 65: The candidate possesses exceptional full-stack architecture skills, deep experience in B2B e-commerce, and complex data management that is highly transferable. However, the complete lack of demonstrated expertise in Ruby or Rails—the core required technology—is a significant risk.
2026-10-17 21:44:09
found Found via remotive