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Senior Backend Engineer, Fields

Job Overview

Location

Czechia

Job Type

Full-time

Category

Backend Engineer

Date Posted

March 15, 2026

Full Job Description

đź“‹ Description

  • • Join ClickUp, a company revolutionizing the future of work by building the first truly converged AI workspace. We empower millions of teams to break free from silos, reclaim their time, and unlock unprecedented productivity through a unified platform that integrates tasks, docs, chat, calendar, and enterprise search, all enhanced by context-driven AI.
  • • As a Senior Backend Engineer on the Fields squad, you will be instrumental in developing and maintaining the core components that power ClickUp's custom task data. This includes architecting and implementing dynamic schemas, handling high-volume data updates, and ensuring the flexibility required for users to tailor ClickUp to their unique workflows.
  • • Your primary focus will be on building scalable, high-throughput, and low-latency services capable of managing millions of requests daily. This role demands a deep understanding of distributed systems, performance optimization, and the design of robust, efficient APIs.
  • • You will take ownership of the end-to-end development lifecycle for new features and systems, from initial conception and design through to deployment and ongoing maintenance in production.
  • • A key responsibility will be to collaborate closely with cross-functional stakeholders, including product managers, designers, and other engineering teams, to ensure the delivery of a world-class product that meets user needs and business objectives.
  • • You will actively identify opportunities for improvement within our existing backend systems, proposing and implementing solutions to enhance performance, scalability, reliability, and maintainability.
  • • This role offers a unique opportunity to contribute to the evolution of AI in the workspace domain, learning, utilizing, and pioneering AI-driven features that will shape the future of how people work.
  • • You will play a vital role in establishing and nurturing a fun, fulfilling, and world-class engineering culture at ClickUp, contributing to best practices, knowledge sharing, and a positive team environment.
  • • The Fields squad is at the forefront of ClickUp's innovation, dealing with complex data structures and high-demand services. You will be challenged to solve intricate problems related to data consistency, concurrency, and distributed transactions.
  • • You will be expected to write high-quality, well-tested, and maintainable code, with a strong emphasis on performance and efficiency. This includes optimizing database queries, designing efficient data models, and implementing effective caching strategies.
  • • Contribute to the architectural decisions for the Fields service, ensuring that our systems are designed for future growth and can adapt to evolving business requirements.
  • • Debug complex issues in production environments, performing root cause analysis and implementing permanent fixes to ensure system stability and reliability.
  • • Mentor junior engineers, sharing your expertise and fostering a collaborative learning environment within the team.
  • • Stay abreast of the latest technologies and industry trends in backend development, distributed systems, and AI, and advocate for their adoption where appropriate.
  • • You will be a key player in ensuring the seamless integration of new features with existing functionalities, maintaining the integrity and performance of the entire platform.
  • • The role requires a proactive approach to problem-solving, the ability to work autonomously, and a commitment to delivering high-quality software that delights our users.
  • • You will be part of a fast-paced, agile environment where innovation and rapid iteration are encouraged, contributing to a product that is rapidly transforming the productivity landscape.
  • • Your work will directly impact the core functionality of ClickUp, enabling users to manage their work more effectively and efficiently through powerful and flexible data management capabilities.
  • • Embrace the challenge of working with large-scale data and distributed systems, ensuring that ClickUp remains a leader in the AI-powered workspace market.
  • • Contribute to the continuous improvement of our development processes, including CI/CD pipelines, testing strategies, and monitoring solutions.
  • • You will have the opportunity to work with cutting-edge technologies and contribute to a product used by millions worldwide, making a tangible impact on how teams collaborate and achieve their goals.

Skills & Technologies

JavaScript
TypeScript
Node.js
AWS
Backend
Senior
Remote
Degree Required

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Mango Technologies, Inc. logo
Mango Technologies, Inc.
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About Mango Technologies, Inc.

ClickUp is a San Diego-based productivity platform that unifies tasks, documents, goals, chat, and whiteboards in one cloud workspace. Founded in 2017, the company serves individuals, startups, and large enterprises seeking to replace scattered tools with a single, customizable hub. Its feature set includes hierarchical task management, real-time collaboration, time tracking, reporting dashboards, and hundreds of pre-built templates and integrations. ClickUp targets teams in software development, marketing, and operations that need to plan, execute, and monitor work without switching applications.

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