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Senior Software Engineer (Python/JavaScript)

Jahnel Group

Salary not specified
Oct 7, 2025
Cambridge, MA, US
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Jahnel Group is looking for a Software Engineer to join a team building high-impact systems across industries, focusing on scalable, secure, and reliable backend applications for mission-critical domains.

Requirements

  • 5+ years of experience as a Software Engineer
  • Proficiency in Python, JavaScript, and React
  • Experience developing for Android (preferably also iOS)
  • Familiarity with SDK development or contributing to mobile apps via embedded SDKs
  • Strong understanding of relational databases and SQL
  • Experience with CI/CD pipelines and automation tools
  • Solid grasp of Test-Driven Development (TDD) and modern testing practices

Responsibilities

  • Design and develop backend services and enterprise-grade software solutions
  • Work on SDKs that integrate into Android and iOS apps, as well as related backend microservices
  • Optimize relational databases and write performant SQL queries
  • Participate in the full development lifecycle, including TDD, CI/CD, and code reviews
  • Write unit and integration tests to ensure quality and maintainability
  • Maintain documentation and adhere to version control best practices
  • Troubleshoot and resolve production issues with a focus on performance and stability

Other

  • Collaborate with cross-functional teams including mobile, QA, DevOps, and product management
  • Ability to work effectively in a distributed, remote-first team
  • Excellent communication skills and fluency in English (written and verbal)
  • The work hours will be approximately 9:00 am to 5:00 pm EST, depending on workload, with the occasional late night when a tight deadline calls for it.
  • background checks will be required.