Senior Software Engineer, API Products

As a Senior Software Engineer, API Products at 0x, your main responsibilities include being an individual contributor on various projects, leading technical initiatives, conducting code reviews, creating secure and high-quality code, launching new features, and mentoring other engineers. You'll also empathize with customers and users to understand their needs better.

To qualify for the Senior Software Engineer, API Products role at 0x, candidates should possess 7+ years of experience in software engineering with a strong background in complex distributed computing problems. Experience with relational and key-value data stores, cloud-based deployment (preferably AWS), and building external-facing APIs is essential. A passion for DeFi and up-to-date knowledge on application security trends are highly desirable.

As a Senior Software Engineer at 0x, you will primarily work with TypeScript and Node/Express. Additionally, you'll engage with Rust, AWS cloud services (like Kubernetes, Kafka, and Postgres), and utilize observability tools such as Grafana. Understanding JSON-RPC APIs for blockchain interactions and familiarity with Web3 libraries will be beneficial too.

The culture at 0x is built on collaboration, integrity, and a strong desire to make a positive impact. As a Senior Software Engineer, you'll be surrounded by intelligent, supportive colleagues who value continuous learning and mentorship. With flexible hours and a remote environment, 0x promotes work-life balance while striving for engineering excellence in the realm of DeFi.

0x offers a competitive benefits package for Senior Software Engineers, including comprehensive insurance coverage, a 401k plan, remote work stipends, mental health resources, unlimited vacation, and 12-week paid parental leave. Additionally, employees receive reimbursement for lunch and have opportunities for annual in-person team meet-ups, all within a supportive and inclusive environment.

When discussing your experience with distributed systems, focus on specific projects where you designed or maintained such systems. Highlight your understanding of data partitioning, fault tolerance, and how you ensured system scalability and reliability. Mention any technologies used that relate to the job description, such as AWS services, and be prepared to discuss challenges faced and how you overcame them.

Discuss your philosophy on code reviews, emphasizing constructive feedback, maintaining code quality, and knowledge sharing. Highlight your experience mentoring junior engineers and how these reviews improve team collaboration and project outcomes. Mention specific examples of improvements made based on feedback received.

When designing APIs, consider aspects like usability, security, and scalability. Talk about RESTful principles, versioning strategies, and documentation standards. Include examples of APIs you've designed and how you gathered user feedback to enhance usability and adoption.

Provide a specific example of a project where you played a leadership role. Discuss the challenges faced, such as tight deadlines or technical obstacles, and how you facilitated team collaboration, communication, and problem-solving. Emphasize the results achieved and what you learned from the experience.

Explain your routine for staying informed, including following industry blogs, participating in webinars, or engaging in online communities and forums. Mention any conferences or workshops you've attended and how this knowledge translates into professional growth and improvement in your work.

Share a specific instance of an application failure, outlining your role in the incident. Emphasize your problem-solving skills, your approach to diagnosing the issue, and how you communicated with stakeholders. Highlight steps taken post-failure to prevent similar occurrences in the future.

Discuss your passion for Decentralized Finance and how it drives your motivation as a Senior Software Engineer. Mention specific trends or technologies in DeFi that you find compelling and share how they influence your approach to projects and systems you work on.

Explain your method for evaluating task urgency and importance, and how you communicate with your team to align priorities. Mention tools or techniques you use for tracking project progress and managing deadlines, providing examples of successful time management in past roles.

Share your philosophy about mentoring and the practices you employ to support junior engineers. Provide examples of how you've guided them through specific challenges or knowledge gaps, emphasizing the importance of fostering their growth and integrating them into team dynamics.

Discuss your experience making architecture decisions, detailing how you assessed technology options based on trade-offs such as performance, maintainability, and cost. Use an example from a previous role to illustrate how you documented and implemented these decisions in a collaborative manner.