Contract: Senior Staff Back-end Engineer
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Description
Upwork ($UPWK) is the world's work marketplace.
We serve everyone from one-person startups to over 30% of the Fortune 100 with a powerful platform that enables companies and talent to work together in new ways.
Last year, more than $3.3 billion of work was done through Upwork by skilled professionals.
This is an engagement through Upwork’s Hybrid Workforce Solutions (HWS) Team, a global group supporting Upwork’s business.
Join Upwork's engineering team, specifically the Ads & Monetization Team, responsible for Connects, Advertising Products, and Marketplace Design.
As a Senior Staff Backend Engineer at Upwork, you will contribute to our technical projects.
You will work closely with engineering teams and product managers to deliver top-notch products.
You will create, implement, and document software architecture solutions with a focus on scalability, reliability, and maintainability.
Responsibilities
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Collaborate with Engineering, Data Science teams, and Product Managers to create outstanding products.
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Partner with colleagues to plan, execute, and ensure timely delivery of projects.
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Translate larger vision, features, and challenges into actionable plans.
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Design, build, and deliver robust systems.
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Handle complex projects with minimal guidance.
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Participate in code and design reviews, mentor junior engineers.
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Improve code quality and reduce technical debt.
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Monitor system performance, respond to incidents, and join on-call rotations.
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Use tools like Gmail, Slack, Confluence, and Jira.
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Design, develop, test, and maintain server-side logic, databases, and APIs.
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Use Java or Kotlin for backend development.
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Optimize backend systems for performance, scalability, and reliability.
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Implement security measures to protect systems and data.
Requirements
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8+ years in software development.
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Proven experience in taking complex projects from ideation to launch.
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Proficiency in Java and RESTful services.
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Expertise in writing well-structured, maintainable unit tests (e.g., JUnit, Mockito).
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Knowledge of relational databases and distributed system design.
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Track record of building and supporting high-load web applications.
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Experience with financial technology or ledger systems.
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Strong understanding of software architecture principles.
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Ability to work with cross-functional teams.
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Excellent interpersonal and communication skills in English.
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Comfortable with AWS and cloud-based environments.
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Eagerness to learn new technologies.
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Experience with virtual currencies, ledger systems, or financial technology.
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Experience with high-load applications and databases.
About
Upwork ($UPWK) is the world's work marketplace.
We serve everyone from one-person startups to over 30% of the Fortune 100 with a powerful platform that enables companies and talent to work together in new ways.
Last year, more than $3.3 billion of work was done through Upwork by skilled professionals.
Upwork
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