Software Engineer Intern
Cresta is seeking a Software Engineer Intern to join their team in Toronto, Canada. As a leader in AI-driven customer experience solutions, Cresta combines human intelligence with advanced AI to enhance contact center operations. The intern will contribute to building systems that power real-time, AI-driven customer interactions, focusing on areas such as AI Agents & Automation, Real-Time Agent Assist, Conversation Intelligence, AI Evaluation & Reliability, and Platform & Infrastructure.
In this role, the intern will design and build systems supporting real-time AI-powered customer interactions, collaborate with engineers, product, and ML teams to deliver production-ready solutions, and work on features integrating large language models (LLMs), data systems, and user-facing applications. Responsibilities also include building systems for evaluation, monitoring, and continuous improvement of AI behavior, optimizing for low latency, high throughput, and reliability at scale, and taking ownership of problems end-to-end—from identifying gaps to shipping solutions.
Candidates should have experience with one or more programming languages, such as Python, Go, Java, JavaScript, or TypeScript. An interest in building user-facing products, backend systems, or real-time/data-intensive applications is essential. Familiarity with modern web development, APIs, or system design fundamentals is expected. A curiosity about LLMs, AI agents, or production AI systems is beneficial, though prior machine learning experience is not required. Experience using AI-powered developer tools to accelerate development workflows is a plus.
While specific compensation details are not provided, Cresta offers a dynamic and mission-driven work environment. The company has been recognized as one of America's Best Startup Employers of 2026 by Forbes, reflecting its commitment to employee satisfaction and growth opportunities.
Cresta's culture emphasizes a growth mindset, continuous improvement, and a collaborative approach to problem-solving. Employees are encouraged to take ownership of their work, contribute meaningfully, and engage in high-impact projects. The company offers opportunities for professional development and the chance to work on cutting-edge AI technologies that are transforming customer experiences.