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Key Responsibilities and Required Skills for Full Stack Javascript Developer

💰 $90,000 - $150,000

Software DevelopmentFull StackJavaScriptNode.jsReact

🎯 Role Definition

As a Full Stack JavaScript Developer, you will be responsible for designing, developing and maintaining full-stack web applications—both client-side and server-side—while ensuring performance, security and scalability. You will work closely with product, UI/UX and operations teams to translate business requirements into technical solutions, champion best practices in software engineering, and contribute end-to-end from concept through deployment and beyond.

📈 Career Progression

Typical Career Path

Entry Point From:

  • Junior Web Developer (JavaScript/Node)
  • Front-End Developer (React/Vue/Angular)
  • Back-End Developer (Node.js/Express)

Advancement To:

  • Senior Full Stack JavaScript Developer
  • Technical Lead – Web Applications
  • Engineering Manager – Web & API Services

Lateral Moves:

  • UI/UX Engineer (with strong front-end focus)
  • DevOps / Cloud Engineer (with a focus on modern web delivery)
  • Solutions Architect (for full stack web platforms)

Core Responsibilities

Primary Functions

  1. Architect, design and implement full-stack web applications using JavaScript/TypeScript on the front-end (e.g., React, Angular, Vue) and Node.js/Express (or similar) on the back-end.
  2. Develop and maintain RESTful APIs (and/or GraphQL endpoints) that support client-side features and integrate with various data sources.
  3. Build reusable, testable, and efficient code modules and libraries that drive maintainability and performance.
  4. Design and optimize database schemas (SQL and NoSQL) to support large scale data, ensuring high availability and low latency.
  5. Lead front-end development with modern JavaScript frameworks, ensuring responsive, cross-browser, mobile-first user interfaces and excellent user experiences.
  6. Integrate user-facing elements developed by front-end engineers with server side logic, and own the end-to-end delivery from requirement to deployment.
  7. Ensure application performance, scalability and reliability by monitoring, profiling and optimizing code across the stack.
  8. Implement and enforce security best practices in code, data transmission and storage, and ensure compliance with industry standards and internal policy.
  9. Establish and maintain build, deployment and continuous integration/continuous deployment (CI/CD) pipelines to streamline release cycles, testing and production deployments.
  10. Collaborate with designers, UX researchers and product owners to translate business requirements into technical solutions and deliver high-quality software features.
  11. Participate in sprint planning, stand-ups, retrospectives and agile development workflows; help refine and improve development processes and team productivity.
  12. Conduct code reviews, provide mentorship and guidance to junior developers, and help build a culture of high-quality software craftsmanship.
  13. Write and maintain technical documentation—including design specs, API documentation, and operational runbooks—to support development and future maintenance.
  14. Investigate and adopt new frameworks, tools and development practices to keep the stack current and the team effective.
  15. Troubleshoot complex production incidents, debug across front-end and back-end, and implement root-cause fixes to avoid repeat issues.
  16. Ensure effective version control practices (e.g., Git branching, pull requests) and code integrity across feature branches, merges and releases.
  17. Integrate third-party services and APIs (authentication, payment gateways, messaging) and manage external dependencies effectively.
  18. Work with DevOps or infrastructure teams to support containerisation (Docker/Kubernetes), cloud deployments and server orchestration as required.
  19. Optimize front-end asset loading and performance (lazy-loading, code splitting, caching strategies) to deliver fast, responsive web experiences.
  20. Build progressive web applications (PWAs), offline-capable features and ensure the stack is future-proof and mobile-first.

Secondary Functions

  • Support ad-hoc data requests and exploratory data analysis (when collaborating with analytics teams).
  • Contribute to the organisation’s data strategy and roadmap by providing technical input on web platforms and architecture.
  • Collaborate with business units to translate data needs into engineering requirements (especially for dashboards or reporting tools).
  • Participate in sprint planning and agile ceremonies within the data engineering team (if cross-team collaboration is required).

Required Skills & Competencies

Hard Skills (Technical)

  • Proficiency in JavaScript (ES6+) and/or TypeScript
  • Strong experience with Node.js and Express (or equivalent back-end JavaScript frameworks)
  • Solid front-end development experience with modern frameworks/libraries such as React, Angular, or Vue.js
  • Deep understanding of HTML5, CSS3, responsive/adaptive design and browser compatibility issues
  • Experience in designing and implementing RESTful APIs (and optionally GraphQL)
  • Database design and management: relational (MySQL/PostgreSQL) and NoSQL (MongoDB, Redis)
  • Version control proficiency (Git, GitHub/GitLab)
  • Experience with CI/CD pipelines, build/deployment automation, containerisation (Docker) and optionally orchestration (Kubernetes)
  • Performance optimisation skills (front-end load time, back-end query tuning, caching strategies)
  • Strong understanding of web security principles (authentication, authorization, encryption, data protection)

Soft Skills

  • Excellent oral and written communication skills, able to engage with both technical and non-technical stakeholders
  • Strong problem-solving and analytical mindset, capable of debugging complex systems
  • Self-motivated and proactive mindset with a willingness to learn new technologies and frameworks
  • Ability to work in fast-paced agile development environments and adapt to changing priorities
  • Effective time-management, ability to handle multiple tasks and meet deadlines
  • Team-oriented and collaborative, with experience mentoring or peer-reviewing code

Education & Experience

Educational Background

Minimum Education:

  • Bachelor’s degree in Computer Science, Software Engineering or a related field (or equivalent practical experience)

Preferred Education:

  • Master’s degree in computer science or equivalent technical discipline
  • Certifications in modern web technologies, cloud or DevOps practices

Relevant Fields of Study:

  • Computer Science
  • Software Engineering
  • Web Development / Full Stack Development
  • Information Technology

Experience Requirements

Typical Experience Range:

  • 3-7 years of professional full-stack web development experience (depending on role seniority)

    • For senior roles often 5+ years with demonstrable full-stack leadership

Preferred:

  • Proven track record building production web applications end-to-end
  • Experience with scaling web applications and working in high-availability environments
  • Prior experience working in agile teams, with code reviews, automated testing, and modern CI/CD practices
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