Contract: Senior Staff Back-end Engineer
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Description
Upwork ($UPWK) is the world’s work marketplace, connecting businesses with independent talent. More than $3.3 billion of work was conducted on Upwork last year. Join Upwork’s engineering team and contribute to the Ads & Monetization Team, which handles the fastest-growing revenue streams at Upwork. This role involves creating, implementing, and documenting software architecture solutions while focusing on scalability, reliability, and maintainability.
Responsibilities
Collaborate with Engineering, Data Science teams, and Product Managers to create outstanding products for our users.
Partner with product management and engineering colleagues to plan, execute, and ensure timely delivery of high-quality projects.
Understand the larger vision, features, and challenges and translate them into actionable plans, considering trade-offs to achieve goals.
Work within and across teams to design, build, and deliver robust systems that deliver value for our business and customers.
Handle complex, ambiguous projects with minimal guidance.
Participate in code reviews and design reviews, mentor junior engineers, promote best practices, and write supporting documentation.
Share ownership of our code domain, focusing on improving code quality and reducing technical debt.
Monitor system performance, respond to incidents promptly, and participate in on-call rotations as needed.
Design, develop, test, and maintain scalable and robust server-side logic, databases, and APIs.
Utilize programming languages such as Java or Kotlin for backend development.
Architect and optimize backend systems for performance, scalability, and reliability.
Implement security measures to protect backend systems and data.
Requirements
8+ years of experience in software development.
Proven technical leadership experience in taking complex projects from ideation to launch.
Proficiency in Java and RESTful services.
Expertise in writing well-structured, maintainable unit tests (e.g., JUnit, Mockito).
Deep knowledge of relational databases and distributed system design.
Proven track record of building and supporting high-load web applications and addressing scalability challenges.
Experience with financial technology or ledger systems.
Strong understanding of software architecture principles and practices.
Proven ability to work with cross-functional teams to successfully launch products.
Excellent interpersonal skills with experience collaborating with multiple stakeholders.
Practical communication skills in English, both written and verbal.
Comfortable working with AWS and cloud-based environments.
Eagerness to learn new technologies and continually develop professional skills.
Experience with implementing virtual currencies, ledger systems, or financial technology.
Experience with high-load applications and databases.
About
Upwork serves everyone from one-person startups to over 30% of the Fortune 100 with a powerful, trust-driven platform to unlock their potential. Last year, more than $3.3 billion of work was done through Upwork by skilled professionals. This job is with Upwork’s Hybrid Workforce Solutions Team, a global group of professionals supporting Upwork's business.
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