Fullstack Lead / Senior Developer

Hexalytics; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Hexalytics is seeking a Senior Fullstack Lead to steer the design, development, and delivery of complex web applications in a fully remote capacity. The role demands hands-on expertise across front-end and back-end technologies, with a track record of leadership and delivering scalable software.

You will mentor junior developers, drive architecture decisions, and collaborate with product, design, and QA to ensure timely, high-quality releases.

Qualifications

• Senior-level role with 6–15 years of experience.
• Deep expertise in both front-end and back-end technologies.
• Proven leadership, problem-solving, and collaboration skills.
• Experience with API development and RESTful services.

Responsibilities

• Lead design, development, and deployment of complex web apps.
• Architect scalable, high-performance, secure solutions.
• Write clean, maintainable code across front-end and back-end.
• Collaborate with PMs, designers, and devs to define requirements.
• Conduct code reviews and mentor junior developers.
• Optimize apps for speed and cross‑platform compatibility.
• Implement RESTful APIs and integrate with front-end.
• Stay up-to-date with web trends and technologies.
• Own full lifecycle from concept to deployment and monitoring.
• Troubleshoot, debug, and upgrade software.
• Lead testing: unit, integration, performance.
• Work in Agile: standups, sprints, retros.
• Document development processes and tools.
• Lead spikes or PoCs for new tech/features.
• Coordinate with support to resolve issues quickly.
• Drive post-mortems and process improvements.
• Set tone for coding standards and quality.

Skills

Front-end expertise

Back-end expertise

Database knowledge

API development

Version control

Testing

Security best practices

Team leadership

API versioning & documentation

Git workflows

Job description

Job Title

Fullstack Lead / Senior Developer

Mode

Full Time - Remote

Experience

6 to 15 years

Job Description::

We are looking for a highly skilled and experienced Senior Fullstack Developer to join our team. The ideal candidate should possess deep expertise in both front-end and back-end technologies, with a strong track record of delivering high-quality applications. This is a senior role where leadership, problem-solving, and collaboration will be crucial.

Responsibilities

• Lead the design, development, and deployment of complex web applications.


• Architect solutions for performance, scalability, and security.


• Write clean, maintainable, and efficient code using best practices in both front-end and back-end development.


• Collaborate with product managers, designers, and other developers to define project requirements and timelines.


• Conduct code reviews and mentor junior developers, providing technical guidance and leadership.


• Optimize applications for speed and responsiveness, ensuring cross-platform compatibility.


• Implement RESTful APIs and integrate them with front-end components.


• Stay up to date with the latest trends in web development, frameworks, and technologies.


• Take ownership of the entire development lifecycle from concept to deployment and post-launch monitoring.


• Troubleshoot, debug, and upgrade software to ensure applications run smoothly.


• Lead testing efforts (unit, integration, performance) to maintain application stability.


• Collaborate in Agile environments, participate in daily stand-ups, sprint planning, and retrospective meetings.


• Document application development processes, tools, and frameworks for future reference.


• Take initiative in leading "spikes" or proof-of-concept explorations for new technologies or features.


• Collaborate with customer support to resolve production issues quickly and effectively.


• Drive post-mortem analysis and provide suggestions to improve future projects, including the use of feedback loops for process improvement.


• Lead by example, setting the tone for development standards, code quality, and efficient work habits.

Skills

• Front-end expertise: Advanced proficiency in JavaScript, HTML5, CSS3, and front-end frameworks like React, Angular, or Vue.js.


• Back-end expertise: Solid understanding and hands-on experience with back-end technologies like Node.js, Java, Python, or PHP.


• Database knowledge: Experience with both SQL and NoSQL databases like MySQL, PostgreSQL, MongoDB, or Redis.


• API development: Expertise in creating and consuming RESTful APIs and familiarity with GraphQL.


• Version control: Strong experience with version control systems like Git, including branching, merging, and pull request workflows.


• Testing: Familiarity with automated testing frameworks for both front-end and back-end.


• Security best practices: Experience implementing security measures such as authentication, authorization, and data protection.


• Team leadership: Ability to lead and guide teams through project cycles while fostering a collaborative, innovative, and high-performance culture.


• API versioning & documentation: Experience with documenting and managing API versions using tools like Swagger or Postman.


• Git workflows: Advanced knowledge of branching strategies such as GitFlow and Trunk-based development to ensure smooth team collaboration

Contact mail: [e-mail]