Contract: Senior Staff Back-end Engineer
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Description
Upwork is seeking a Senior Staff Back-end Engineer to join the Ads & Monetization Team, which drives a significant revenue stream. The engineer will collaborate with product managers and other engineers to deliver high-quality products. They will focus on software architecture, backend development, database management, and compliance documentation with a specific emphasis on financial technology.
Responsibilities
Collaborate with engineering, data science teams, and product managers to create outstanding products for Upwork users.
Plan and execute high-quality projects on time.
Design, build, and deliver robust systems for the business and customers.
Handle complex projects with minimal guidance.
Simplify complex projects, potentially leading to strategic pivots.
Participate in code and design reviews, mentor junior engineers, and promote best practices.
Improve code quality and reduce technical debt.
Monitor system performance, respond to incidents promptly, and participate in on-call rotations as needed.
Use collaborative tools like Gmail, Slack, Confluence, and Jira for communication and project management.
Develop, test, and maintain server-side logic, databases, and APIs.
Use Java or Kotlin for backend development.
Optimize backend systems for performance and scalability.
Implement security measures to protect backend systems and data.
Requirements
Professional Experience: 8+ years in software development.
Proven experience in taking complex projects from ideation to launch.
Proficiency in Java and RESTful services.
Expertise in writing maintainable unit tests (e.g., JUnit, Mockito).
Deep knowledge of relational databases and distributed system design.
Track record of building and supporting high-load web applications.
Experience with financial technology or ledger systems.
Strong understanding of software architecture principles.
Proven ability to work with cross-functional teams.
Excellent interpersonal and communication skills in English.
Comfortable working with AWS and cloud-based environments.
Eagerness to learn new technologies.
Experience with virtual currencies, ledger systems, or financial technology.
About
Upwork ($UPWK) is the world’s work marketplace, serving a diverse range of clients from startups to Fortune 100 companies. Through Upwork, over $3.3 billion of work was completed last year by skilled professionals. Our Hybrid Workforce Solutions (HWS) Team supports Upwork’s global operations, with team members located worldwide.
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