Senior Engineer (Senior Full Stack Engineer)
Contract
Location: Mexico, Canada
Role Overview
We are looking for a Senior Full Stack Engineer with strong hands-on expertise in React, Node.js, and SQL who can take end-to-end technical ownership of an application.
The ideal candidate should be capable of looking beyond individual modules or development tasks and understanding the application as a whole—including frontend, backend, APIs, database, integrations, deployment, performance, and production support. The role requires a combination of hands-on development, technical ownership, problem-solving, and team guidance.
Experience
- 6+ years of software development experience, preferably in full-stack application development.
- Strong hands-on experience with React, Node.js, JavaScript/TypeScript, and SQL.
- Experience owning or playing a key technical role in medium-to-large applications.
- Experience across the complete SDLC: requirements, design, development, testing, deployment, and production support.
- Experience troubleshooting complex issues across frontend, backend, database, and integration layers.
- Experience conducting code reviews and mentoring/guiding other engineers.
Must-Have Skills
- React: Components, Hooks, state management, routing, reusable UI design, API integration, and frontend performance.
- Node.js: Backend/service development, REST APIs, asynchronous programming, authentication/authorization, error handling, and logging.
- SQL: Strong query-writing skills, relational database design, indexing, query optimization, and performance troubleshooting.
- Strong proficiency in JavaScript and/or TypeScript.
- Strong understanding of REST APIs, system integrations, and application architecture.
- Knowledge of software design principles, coding standards, and design patterns.
- Strong debugging, analytical, and problem-solving skills.
- Ability to understand an application end to end and assess the impact of changes across the system.
- Strong communication and collaboration skills.
Good-to-Have Skills
- Experience with AWS, Azure, or GCP.
- Knowledge of CI/CD pipelines and automated deployment practices.
- Experience with unit, integration, and automated testing.
- Exposure to microservices and distributed architectures.
- Knowledge of application security and secure coding practices.
- Experience with monitoring, logging, and observability tools.
- Experience modernizing legacy applications and reducing technical debt.
- Familiarity with Agile/Scrum development methodologies.
Responsibilities
- Take end-to-end technical ownership of the application across React frontend, Node.js backend, SQL database, APIs, and integrations.
- Design, develop, enhance, and maintain scalable and reliable application solutions.
- Translate business requirements into appropriate technical designs and implementations.
- Make technical decisions considering scalability, performance, security, maintainability, and reliability.
- Actively contribute to development and handle technically complex implementation tasks.
- Review code and designs to ensure engineering quality and adherence to standards.
- Guide and mentor developers on implementation approaches and engineering best practices.
- Identify and address technical debt, performance bottlenecks, architectural gaps, and security concerns.
- Troubleshoot complex application and production issues and drive root-cause resolution.
- Collaborate with Product, QA, DevOps, Architecture, and other stakeholders throughout the delivery lifecycle.
- Ensure appropriate testing, monitoring, logging, documentation, and production readiness.
- Continuously improve the overall quality, performance, stability, and maintainability of the application.
Key Expectation: This is a hands-on senior engineering role with application-level ownership. The candidate should be able to understand the complete application, independently drive technical solutions, contribute to coding, guide the development team, and ensure the long-term technical health of the application.
Information Security Responsibilities
- Promote and enforce awareness of key information security practices, including acceptable use of information assets, malware protection, and password security protocols
- Identify, assess, and report security risks, focusing on how these risks impact the confidentiality, integrity, and availability of information assets
- Understand and evaluate how data is stored, processed, or transmitted, ensuring compliance with data privacy and protection standards (GDPR, CCPA, etc.)
- Ensure data protection measures are integrated throughout the information lifecycle to safeguard sensitive information
Skills Required
- 6+ years of software development experience, preferably in full-stack application development
- Hands-on experience with React
- Hands-on experience with Node.js
- Hands-on experience with JavaScript and/or TypeScript
- Strong SQL skills, including relational database design, indexing, query optimization, and performance troubleshooting
- Experience owning or playing a key technical role in medium-to-large applications
- Experience across the complete software development lifecycle
- Experience troubleshooting issues across frontend, backend, database, and integration layers
- Experience conducting code reviews and mentoring or guiding engineers
- Understanding of REST APIs, system integrations, and application architecture
- Knowledge of software design principles, coding standards, and design patterns
- Strong debugging, analytical, problem-solving, communication, and collaboration skills
- Experience with AWS, Azure, or GCP
- Knowledge of CI/CD pipelines and automated deployment practices
- Experience with unit, integration, and automated testing
- Exposure to microservices and distributed architectures
- Knowledge of application security and secure coding practices
- Experience with monitoring, logging, and observability tools
- Experience modernizing legacy applications and reducing technical debt
- Familiarity with Agile/Scrum methodologies
What the Team is Saying
Bounteous Compensation & Benefits Highlights
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Healthcare Strength — Health coverage is described as strong, with PPO/HSA options, competitive deductibles, and in some cases the employer covering the employee premium. Feedback suggests medical benefits are one of the most robust parts of the package.
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Leave & Time Off Breadth — A “take‑what‑you‑need” or unlimited vacation policy is advertised and frequently highlighted as a positive. Feedback suggests this, alongside paid holidays, enables meaningful time away.
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Wellbeing & Lifestyle Benefits — Remote, office, and hybrid arrangements with flexible hours are widely promoted and commonly experienced. Feedback suggests this flexibility materially supports day‑to‑day balance.
Bounteous Insights
What We Do
Bounteous is a global AI Services firm where agentic engineering and human experience converge to deliver transformative business outcomes for the enterprise. We help organizations design, build, and scale AI-driven products, platforms, and processes. With more than 5,000 team members worldwide, Bounteous delivers AI that sticks, powering adoption and outcomes that move organizations from experimentation to true transformation.
Why Work With Us
Bounteous combines strategy, experience design, engineering, data, and AI to help leading brands build intelligent systems that are practical, scalable, and measurable. People join us to work on meaningful transformation initiatives, collaborate with smart and supportive teams, and help shape what’s next in AI and digital experience.
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Our remote-first teams of talented individuals collaborate and co-innovate worldwide. We believe productivity thrives anywhere, so you're empowered to work in the way and environment where you perform best.
