Lead Full-stack Developer (Ruby, Vue, React)
At Merge Development we're looking for a Senior Full-Stack Developer to join an American product.
We are looking for a Lead Full-stack Developer (Ruby, Vue, React) who will join a team of our partner, Pypestream , and work with them directly.
We are seeking a Contact Center/Live Agent Team Lead with deep expertise in Ruby to lead backend development, architecture, and integration efforts for our Live Agent and Contact Center systems. This role requires a full-stack mindset, as you will work with Ruby, React, and Vue, with a focus on backend services and API development. As a technical leader and hands-on contributor, you will be responsible for driving backend scalability, optimizing system performance, and leading a small team of 1-3 engineers. Additionally, you will work closely with Product, DevOps, and Frontend teams to build reliable, high-performance systems that integrate seamlessly into contact center workflows and live agent solutions. This role is ideal for an experienced Ruby engineer with strong API development, frontend integration experience, and a passion for building real-time customer engagement systems. Experience with Elixir is a plus, as we leverage functional programming patterns in certain areas.
8+ years of experience in software development, with deep expertise in Ruby and backend architecture.
1-3 years of experience leading or mentoring engineers, with proven success in team development.
Strong experience in building and maintaining APIs (REST, GraphQL) for real-time applications.
Proficiency in React and Vue, particularly for frontend integrations and API consumption.
Experience in PostgreSQL performance tuning, query optimization, and database scaling strategies.
Knowledge of real-time event-driven architectures (WebSockets, Kafka, RabbitMQ, or similar).
Experience with cloud-native architectures and deployment strategies (Docker, Kubernetes, AWS/GCP).
Strong collaboration and communication skills, with the ability to mentor engineers and work across teams.
Nice to Have
Experience with Elixir, particularly for high-performance, event-driven backend services.
Background in contact center, live chat, or customer engagement platforms.
Familiarity with Chatwoot for real-time chat and customer engagement.
Experience with Hasura and GraphQL for real-time data queries and API management.
Knowledge of microservices, service-oriented architecture (SOA), and real-time communication protocols.
Knowledge of AI/LLM-driven automation tools in customer service applications.
Technical Leadership & System Architecture
Lead the design and development of scalable, high-performance backend services for Live Agent and Contact Center applications.
Architect and optimize Ruby-based services, ensuring best practices in API development, security, and maintainability.
Collaborate with Frontend teams (React, Vue) to build seamless user experiences and real-time communication tools.
Ensure system scalability, resilience, and observability, particularly in high-traffic, real-time customer interaction environments.
Advocate for and implement best practices in database design, query optimization, and caching strategies.
Evaluate and integrate new technologies, frameworks, and third-party APIs to enhance the Live Agent experience.
Hands-On Development & Code Quality
Write clean, maintainable, and testable Ruby code, focusing on scalability and performance.
Develop and maintain RESTful and GraphQL APIs, ensuring efficient data access and real-time integrations.
Work with PostgreSQL and other relational databases to optimize query performance and indexing strategies.
Implement real-time event processing and data streaming solutions to enhance Live Agent responsiveness.
Conduct code reviews, pair programming, and architecture discussions, ensuring code quality and adherence to best practices.
Work with DevOps teams to enhance CI/CD pipelines, infrastructure automation, and containerization strategies.
Team Leadership & Mentorship
Manage and mentor a small team of 1-3 software engineers, fostering professional and technical growth.
Conduct regular 1:1s, performance reviews, and career development planning.
Provide hands-on guidance in Ruby backend architecture, API development, and frontend integrations.
Foster a collaborative, knowledge-sharing culture, ensuring continuous learning and innovation.
Collaboration with Product & Engineering Management
Work closely with VP of Engineering, Product, and Frontend teams to define technical direction, prioritize features, and drive development roadmaps.
Participate in roadmap planning, sprint reviews, and backlog grooming, ensuring technical feasibility and scalability.
Partner with Contact Center and Customer Success teams to improve agent tooling and workflow automation.
Advocate for engineering priorities, including refactoring efforts, reducing technical debt, and performance improvements.
AI-Driven Development & Automation
Utilize AI-powered development tools (e.g., Cursor, GitHub Copilot, CodeRabbit) to improve developer efficiency and reduce complexity.
Implement AI-driven monitoring, log analysis, and predictive alerting to enhance system reliability.
Explore AI-assisted customer service solutions, integrating intelligent automation into Live Agent workflows.
Agile & Process Optimization
Lead efforts to optimize Agile development processes, improving sprint planning, backlog grooming, and delivery velocity.
Define and track system performance KPIs, ensuring high availability and low-latency response times.
Enhance observability, logging, and distributed tracing, enabling faster debugging and issue resolution.
Work with DevOps teams to refine CI/CD pipelines, cloud infrastructure automation, and deployment strategies.
Join a team of skilled developers where you'll have opportunities to collaborate, learn, and grow in a supportive, expert environment. You'll work on a stable product—not a startup—offering you the confidence of long-term job stability;
Fully remote job;
Unlimited Time Off & Sick Leave;
All International holidays are paid time off;
Equity in the company. Options in the company which are valued based on share price at the time of issue;
Annual birthday bonus;
$100 USD a month for a single meal on the company.
Ownership over technical strategy and architecture for Contact Center and Live Agent systems.
Opportunities to mentor and grow a small team of backend and frontend engineers.
Collaboration with senior management and product teams to shape product direction, scalability, and deployments.
A leadership role that blends hands-on development with strategic influence.
Pre-screen interview with a recruiter;
Technical interview;
Final interview with the client.
Do you want to join our team as our new Senior Front-End Developer? Then we'd love to hear about you!
Merge Development is a team of designers and front-end developers. We care deeply about what we do and have become experts in beautifully designed software and consumer applications. Having different backgrounds combined, we gathered a pretty massive scope of competencies.