Senior Software Engineer (Java/Kotlin) — API & Performance

Jobtailor; Massachusetts; On-site; USD 120,000 - 150,000; Full time

Job summary

Jobtailor in Massachusetts is looking for an experienced software engineer to design, scope, and implement cross-functional solutions. You will collaborate with Design and Product teams to build scalable and high-performance systems that meet business needs.

We value strong OO programming skills (Java/Kotlin), REST/GraphQL API expertise, and solid database knowledge. Familiarity with React is a plus as you contribute across front-end and back-end domains.

Qualifications

• 5+ years of experience in software engineering.
• Proficiency with Java, Kotlin, or other object-oriented languages.
• Proficiency with modern API standards and technologies (REST, GraphQL).
• Proficiency with relational databases and alternative data stores.
• Familiarity with React and front-end development is a strong plus.

Responsibilities

• Design, scope, and implement solutions using a mix of technologies.
• Enhance the platform’s performance, usability, and scalability.
• Collaborate with Design and Product stakeholders to build appropriate solutions.
• Identify high-impact opportunities and turn them into reality.
• Influence product and business strategies through technical work.
• Contribute to collaboration and collective team success.

Skills

Java Programming

Kotlin Programming

REST API Development

GraphQL API Development

Relational Database Management

Tools

React

Front-End Development

Job description

Jobtailor in Massachusetts is looking for an experienced software engineer to design, scope, and implement cross-functional solutions. You will collaborate with Design and Product teams to build scalable and high-performance systems that meet business needs.

We value strong OO programming skills (Java/Kotlin), REST/GraphQL API expertise, and solid database knowledge. Familiarity with React is a plus as you contribute across front-end and back-end domains.