Senior Backend Engineer: Haskell (On-site or remote)

As a Senior Backend Engineer at CentralApp, your main responsibilities will include developing and maintaining our large backend system written in Haskell, ensuring efficient communication between services, and implementing new features according to our evolving business needs. You'll also collaborate closely with the frontend team to refine API design and enhance user experience.

To qualify for the Senior Backend Engineer position at CentralApp, you should have at least 4-5 years of experience with Haskell or functional programming in an industrial context. A strong understanding of *nix systems is essential, along with the ability to tackle complex problems and contribute to a team-focused environment.

Senior Backend Engineers at CentralApp work with an extensive tech stack, including Postgres (RDS) for storage, Redis for caching, and Servant for APIs. The backend system is deployed on AWS using Docker images built with Nix, all focused on delivering a resilient and scalable solution for our clients.

At CentralApp, you can expect a vibrant work environment that fosters innovation and collaboration. You'll work on cutting-edge technologies while being part of a high-growth company that values your input and expertise in backend engineering. We prioritize teamwork and aim to reduce technical debt to maintain seamless processes.

CentralApp is dedicated to facilitating professional growth for our Senior Backend Engineers by providing opportunities for continuous learning and development. You'll have access to resources, projects that challenge your skills, and the ability to expand your expertise in technologies like Haskell, AWS, and functional programming.

When answering this question, focus on specific projects where you've used Haskell and how those experiences have shaped your understanding of functional programming. Detail the challenges you faced, how you approached them, and the results of your work to showcase your analytical skills and technical proficiency.

Discuss your experience with API design and service communication, emphasizing your knowledge of patterns such as request flow management and message passing. Provide examples of how you’ve addressed potential bottlenecks or issues in service interaction, highlighting the importance of clear protocols and documentation.

Explain your approach to performance optimization, including steps such as monitoring metrics, profiling code, identifying bottlenecks, and implementing caching strategies. Additionally, provide examples of past experiences where these methods have led to successful enhancements in system performance.

When answering this question, outline your methodology for prioritizing tasks, such as using agile practices or Kanban. Highlight how you collaborate with team members to align on priorities based on business needs and technical dependencies, showcasing your ability to adapt in a fast-paced environment.

Discuss the importance of using version control systems like Git, your philosophy on writing clear commit messages, and the best practices you follow during code reviews. Mention how you approach both giving and receiving feedback, as fostering a constructive review process is vital for team growth.

Talk about the practices you employ to ensure code quality, such as following coding standards, writing comprehensive unit tests, and performing regular refactoring. Provide examples of how you’ve implemented these strategies to reduce technical debt and improve maintainability in your previous projects.

Explain how you stay current with industry trends, mentioning resources such as online courses, forums, blogs, and conferences related to Haskell and backend development. Highlight any communities you participate in and how they contribute to your continuous learning and professional development.

Be specific about a challenging situation where you applied your Haskell knowledge effectively. Describe the problem, your solution, and the impact your resolution had on the project or company, emphasizing critical thinking and your technical approach.

Demonstrate your understanding of the importance of cross-team collaboration by sharing specific experiences where you’ve worked with frontend developers. Discuss how you communicated requirements, provided support during integration, and ensured that both sides’ needs were met effectively.

Share your enthusiasm for CentralApp's mission, and culture, and the opportunity to work on unique solutions that address real business challenges. Highlight your excitement about contributing to an innovative product and being part of a team that values growth and collaboration.