Senior Full Stack developer (short-term involvement)

location

English level: Upper-Intermediate

work type

Work type: Office/Remote

level

Technical Level: Senior

Project Overview:

We are seeking a highly skilled Senior Full Stack Developer with strong expertise in both frontend and backend development to join our team on a contract basis. You will play a key role in finalizing the build of our API using Node.js and switching the frontend endpoints in our React.js application.

The ideal candidate will have experience working independently, building robust testing suites, and must hit the ground running. You should be comfortable operating in a fast-paced environment, have a strong understanding of AWS, and be experienced in full-stack development, particularly building from 0 to 1.


Customer Overview:

USA influencer marketing platform for organizations looking to advance their creator marketing. Its enterprise-grade technology and industry-leading intelligence facilitate scaled creator discovery, streamlined workflows, and robust reporting, while ensuring compliance and brand safety.


Responsibilities:
  • Rapidly onboard to an in-progress project, quickly familiarize yourself with existing architecture and codebase, and immediately contribute to feature completion and system optimization.
  • Integrate the API with the frontend React.js application, ensuring smooth communication between the two layers.
  • Implement comprehensive testing strategies, ensuring full test coverage for the API, including unit tests, integration tests, and functional tests.
  • Collaborate closely with product managers, backend engineers, and infrastructure teams to gather requirements and finalize the API architecture.
  • Conduct code reviews and ensure best practices are followed throughout the development lifecycle.
  • Write and maintain clear technical documentation for API services and integration points.
  • Ensure security best practices are followed, particularly around data access, authentication, and API usage.

Skills/Requirements:
  • 5+ years of full stack development with a focus on React.js (frontend) and Node.js with TypeScript (backend).
  • Proficiency in API design and development, particularly decoupling systems and integrating new APIs.
  • Understanding of performance issues in different application levels.
  • Experience with Microservices architecture.
  • Familiarity with AWS infrastructure, including Serverless services.
  • Extensive experience with automated testing (unit, integration, and functional tests) and ensuring full test coverage.
  • Familiarity with OWASP Top 10 vulnerabilities and mitigation techniques.
  • Upper-intermediate English proficiency.

We offer:
  • Flexible working hours
  • Remote work/office work
  • Paid vacation
  • Paid sick leave
  • Corporate doctor services
  • Free English classes
  • Life event support
  • Payment for educational courses, certificates (50%)
  • Different sports activities in the office (badminton, tennis, darts, gym)
  • Fully equipped office with car and bicycle parking

Apply Now

    Liudmyla Spilnyk

    Recruiter in JetSoftPro

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