Lifted, an Upwork Company

#106 - Backend Software Engineer - Java/Kotlin, AWS & GraphQL

Lifted, an Upwork Company  •  Onsite  •  4 hours ago
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Job Description

Summary

We are seeking a backend-focused software engineer to design, build, maintain, and operate scalable cloud-native systems. This role will complete important engineering and product work involving platform maintenance, compliance, cost efficiency, observability, experiment cleanup, and operational tooling. The engineer will work primarily with Java and/or Kotlin, Spring Boot, AWS, MongoDB Atlas, Aurora MySQL, and GraphQL using Netflix DGS.

Key Responsibilities

  • Deliver backend engineering work involving compliance maintenance, cost savings, observability, experiment cleanup, and operational tooling.
  • Design, build, and maintain scalable, performant, and reliable software systems.
  • Contribute to system architecture and mid-level technical design.
  • Validate solutions through data and experimentation where appropriate.
  • Write, test, document, deploy, and operate backend services.
  • Participate in code reviews and design reviews.
  • Collaborate with software engineers, product managers, data scientists, designers, and other cross-functional partners.
  • Clarify requirements with product and engineering partners and translate them into maintainable implementations.

Qualifications

Must-Have Skills

  • 3-5 years of professional, backend-focused software development experience.
  • Proficiency in Java and/or Kotlin.
  • Experience with Spring Boot.
  • Proficiency with MongoDB Atlas as a modern NoSQL database.
  • Proficiency with Aurora MySQL on AWS as a modern relational database.
  • Experience building cloud-native distributed systems on AWS.
  • Experience developing GraphQL APIs using Netflix DGS.
  • Experience building and operating large-scale, high-performance, resilient systems on a major cloud platform.
  • Excellent English communication and collaboration skills across teams.
  • Enterprise experience strongly preferred.

Nice-to-Have Skills

  • Event-driven system development using Apache Kafka and/or Amazon SQS.
  • AI-assisted coding experience.
  • Terraform.
  • Microservices development.
  • gRPC and REST API development.

Additional Information

Required Tools & Platforms

  • Java and/or Kotlin.
  • Spring Boot.
  • AWS.
  • MongoDB Atlas.
  • Aurora MySQL.
  • GraphQL and Netflix DGS.

Location, Time & Engagement

  • Candidates must be based in LATAM.
  • US Central Time coverage is required.
  • This is a remote contract engagement at 40 hours per week.
  • The anticipated engagement runs through March 31, 2027.
  • This is not currently a contract-to-hire opportunity.
Lifted, an Upwork Company

About Lifted, an Upwork Company

Lifted is the first talent, country and contract agnostic contingent workforce management solution, unifying the ability to source, contract, manage, and pay any type of contingent talent, anywhere in the world. Designed to embed into existing contingent workforce ecosystems, Lifted provides enterprises with global reach, embedded compliance, and a seamless experience across the entire contingent workforce.

Industry
IT & Software
Company Size
201-500 employees
Headquarters
Unknown
Year Founded
2025
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