Contract: Senior Staff Back-end Engineer
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Description
Upwork seeks a skilled and experienced Senior Staff Back-end Engineer for a contract position. The successful candidate will join the Ads & Monetization Team, responsible for our fastest-growing revenue stream. This role involves backend development, database design, and financial technology with a focus on systems design, software architecture, and technical excellence.
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, translating them into actionable plans.
Work within and across teams to design, build, and deliver robust systems that add value to our business and customers.
Handle complex 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.
Utilize collaborative tools such as Gmail, Slack, Confluence, and Jira for communication, documentation, and project management.
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
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 well-structured, maintainable unit tests.
Deep knowledge of relational databases and distributed system design.
Experience with 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 extensive 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.
About
Upwork is the world’s work marketplace that connects businesses with independent talent from across the globe. We serve everyone from one-person startups to large, Fortune 100 enterprises with a powerful, trust-driven platform that enables companies and talent to work together in new ways that unlock their potential. Our talent community on Upwork encompasses more than 10,000 skills in categories including website & app development, creative & design, customer support, finance & accounting, consulting, and operations.
Upwork
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