Senior Software Engineer, Backend (AI Agent)

Ever dreamed of building the foundational technology that powers the next generation of AI? What if you could shape the backend systems for intelligent agents that redefine how businesses interact with their customers globally? Cresta, a leader in conversational AI, is searching for a Senior Software Engineer to do exactly that. We're creating a world where AI agents don't just respond, they understand, anticipate, and elevate every customer experience. If you thrive on tackling complex scalability challenges and crafting robust solutions that truly make a difference, then this is your opportunity to join a pioneering team, working fully remotely from anywhere in the world, and help us build the future of AI.

Overview

At Cresta, we're not just building software; we're unlocking the true potential of the customer experience. Our unified AI platform seamlessly blends conversational AI agents, real-time human agent augmentation, and comprehensive conversation intelligence. This powerful combination drives significant revenue growth and boosts efficiency across every communication channel. Imagine working with industry giants like United Airlines, Cox Communications, and Marriott, knowing your contributions help them deliver world-class customer experiences every single day.

Our journey began in the prestigious Stanford AI Lab, and since then, we've secured over $270 million from top-tier investors including a16z, Greylock, and Sequoia. Our leadership team features some of the brightest minds in AI today. Our CEO, Ping Wu, for instance, founded and led Google's Contact Center AI and Vertex AI platforms before bringing his vision to Cresta. He's now here to build the definitive future of AI-driven customer experiences.

The coming years will see AI completely transform global business interactions. This is your chance to be at the forefront of that revolution. This is a fully remote, worldwide opportunity, meaning you can contribute to our groundbreaking work from wherever you are.

Key Responsibilities

As a Senior Software Engineer focused on our AI Agent backend, you will play a pivotal role in ensuring our intelligent systems are powered by server solutions that are both incredibly reliable and infinitely scalable. Your day to day will involve a variety of critical tasks, including:

Designing, developing, and maintaining high-performance, fault-tolerant backend services that support our cutting-edge AI agents.
Building robust APIs and microservices to facilitate seamless communication between AI models, user interfaces, and external systems.
Optimizing existing systems for speed, scalability, and efficiency, handling increasing volumes of conversational data and real-time interactions.
Collaborating closely with AI/ML engineers, frontend developers, and product managers to translate complex requirements into elegant technical solutions.
Implementing best practices for code quality, testing, deployment, and monitoring to ensure the stability and security of our platform.
Mentoring junior engineers and contributing to a culture of technical excellence and continuous improvement.
Researching and integrating new technologies and frameworks to enhance our backend capabilities and keep us at the bleeding edge.

Requirements

We are seeking an individual with a strong foundation and a passion for building robust backend systems. Ideal candidates will possess:

Extensive professional experience as a Backend Software Engineer, demonstrating a track record of shipping complex, scalable software.
Deep proficiency in one or more backend programming languages, such as Python, Go, Java, or C++. Python is particularly relevant given its prevalence in AI.
Significant experience designing and implementing distributed systems, microservices architectures, and RESTful APIs.
A solid understanding of database technologies, both relational (e.g., PostgreSQL, MySQL) and NoSQL (e.g., Cassandra, MongoDB, Redis).
Hands-on experience with cloud platforms like AWS, GCP, or Azure, including knowledge of containerization (Docker, Kubernetes).
Familiarity with asynchronous programming, message queues (e.g., Kafka, RabbitMQ), and real-time data processing.
A Bachelor's or Master's degree in Computer Science or a related technical field, or equivalent practical experience.
Excellent problem-solving skills and the ability to debug complex issues across various system components.
Strong communication skills and the ability to collaborate effectively within a fast-paced, remote team environment.

What You'll Gain

Joining Cresta means more than just a job; it's an opportunity to significantly advance your career and contribute to something truly transformative. Here’s what you can expect:

Pioneering Impact: Play a direct role in shaping the future of AI and customer experience, seeing your work directly affect global businesses.
Cutting-Edge Technology: Work with state-of-the-art AI, machine learning, and cloud technologies, constantly expanding your technical toolkit.
Growth and Learning: Collaborate with and learn from some of the leading minds in AI, including our CEO who has a storied history in the field.
Dynamic Culture: Thrive in an innovative, supportive, and fully remote environment where your ideas are valued and encouraged.
Meaningful Challenges: Tackle complex, real-world problems that push the boundaries of what AI can achieve, ensuring no two days are quite the same.
Global Reach: Contribute to a worldwide product from the comfort of your chosen location, truly making an impact on an international scale.