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Contract: Senior Staff Back-end Engineer

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Description

Upwork, the world's work marketplace, is seeking a Senior Staff Back-end Engineer to join our Ads & Monetization Team. This team drives our fastest-growing revenue stream and requires expertise in backend development, database management, and financial technology systems. This is a contract position through Upwork's Hybrid Workforce Solutions (HWS) Team.

Responsibilities

  • Collaborate with engineering, data science teams, and product managers to develop top-quality products.

  • Work with product management and engineering teams to plan and deliver projects on time.

  • Translate broad goals into actionable plans considering trade-offs.

  • Design, build, and deliver robust systems.

  • Handle complex projects with minimal guidance.

  • Participate in code reviews and design reviews.

  • Mentor junior engineers and promote best practices.

  • Improve code quality and reduce technical debt.

  • Monitor system performance and respond to incidents promptly.

  • Utilize collaborative tools for communication and project management.

  • Develop scalable and robust server-side logic, databases, and APIs.

  • Use programming languages such as Java or Kotlin for backend development.

  • Optimize backend systems for performance and reliability.

  • Implement security measures to protect backend systems and data.

Requirements

  • 8+ years of professional experience in software development.

  • Proven experience in leading complex projects from start to finish.

  • Proficiency in Java and RESTful services.

  • Expertise in writing maintainable unit tests.

  • Deep knowledge of relational databases and distributed systems.

  • Experience with high-load web applications and scalability issues.

  • Background in financial technology or ledger systems.

  • Strong understanding of software architecture principles.

  • Ability to collaborate with cross-functional teams.

  • Excellent interpersonal and communication skills in English.

  • Familiarity with AWS and cloud environments.

  • Eagerness to learn new technologies.

About

Upwork connects skilled professionals with businesses requiring their expertise. Last year, more than $3.3 billion of work was completed on the platform. The Hybrid Workforce Solutions Team, comprising members worldwide, supports Upwork's global business initiatives.

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