Staff Software Engineer, Backend

About the role

Cresta Insights defines this role as a pivotal opportunity to shape the future of customer engagement through cutting edge backend solutions. As a Staff full-stack engineer with a backend focus, you will own the design and delivery of services that power actionable insights for businesses globally. You will build and optimize the data infrastructure that transforms conversations into strategic assets for our customers. This position places you at the center of our mission to unlock the true potential of the customer experience using AI. You will collaborate closely with cross functional teams to deliver reliable, scalable, and secure backend systems from day one. Your work will directly influence how leading companies like United Airlines and Marriott engage with their customers every day.

Key facts

What you'll do

Design, implement, and maintain backend services and APIs that serve as the foundation for customer engagement applications.

Build and optimize data storage solutions using Postgres, ClickHouse, and Elasticsearch to ensure high performance, scalability, and reliability.

Collaborate with cross functional teams, including frontend engineers, data scientists, and machine learning engineers, to deliver end to end solutions that meet business objectives.

Monitor and troubleshoot performance issues in distributed systems and databases to maintain a high quality user experience.

Write clean, maintainable, and efficient code following best practices for backend development and software engineering standards.

Participate in code reviews, testing, and continuous integration efforts to improve code quality and delivery velocity.

Ensure security, scalability, and reliability of backend services through careful design and iterative improvement.

Analyze and improve system architecture, focusing on performance bottlenecks, scaling strategies, and security considerations.

Contribute to the long term technical vision for the Customer Data Platform and insight visualization capabilities.

Help establish engineering practices and standards as we grow the team in Romania and support global operations.

Support data pipelines that enable real time insights and reporting for customer engagement across all touchpoints.

Work with minimal supervision while communicating progress and risks clearly to stakeholders.

Implement solutions that balance speed of delivery with robustness and long term maintainability.

Act as a technical leader in shaping the direction of backend systems and infrastructure for the platform.

Requirements

Demonstrate proven experience as a Backend Engineer with a strong focus on database design, system architecture, and backend service implementation.

Show strong expertise in programming languages commonly used for backend development, with a solid grasp of data structures, algorithms, and system design principles.

Bring hands on experience with Postgres, ClickHouse, and Elasticsearch, including schema design, query optimization, and performance tuning.

Have a deep understanding of distributed systems, APIs, and microservices architecture and their tradeoffs.

Exhibit strong problem solving skills and the ability to debug complex issues in production like performance regressions or data inconsistencies.

Possess excellent written and verbal communication skills to collaborate effectively with cross functional teams in a remote first environment.

Commit to writing clean, maintainable, and efficient code that adheres to industry best practices and quality standards.

Display ownership and initiative in identifying issues, proposing improvements, and driving solutions to technical challenges.

Nice to have

Experience contributing to open source projects or publishing technical content.

Familiarity with machine learning pipelines and data science workflows.

Knowledge of frontend technologies that interact with backend services.

Experience with cloud platforms and infrastructure as code practices.

Practical notes

This is a hybrid role based in Cluj, Romania, with opportunities to work remotely with a global team across Europe, the US, and Canada.

Over time, the company aims to create a co working space in Romania, moving towards a hybrid environment.

No specific working hours are stated, but the role expects professional availability within the context of a globally distributed team.

Travel, visa, or application deadline information is not provided in the source material.