Software Engineer Intern

Cresta unlocks the true potential of the customer experience turning every conversation into a competitive advantage. Crestas unified AI platform combines conversational AI agents real-time human agent augmentation and comprehensive conversation intelligence to drive revenue and efficiency gains across every channel. The worlds leading companies including United Airlines Cox Communications and Marriott use Cresta to power world-class customer experiences every day.

Born from the Stanford AI Lab Cresta has raised more than $270 million from the worlds leading investors including a16z Greylock and Sequoia. Crestas leadership includes some of the leading minds in AI today. Our CEO Ping Wu founded and led Googles Contact Center AI and Vertex AI platforms before joining Cresta to build the future of AI-driven customer experiences.

Over the next few years AI is going to redefine how people all over the world interact with businesses every day. Come build that future at Cresta.

As a Software Engineer Intern youll build systems that power real-time AI-driven customer interactions in contact centers. Youll work on production infrastructure where latency reliability and measurable business outcomes matter.

You may work across key areas such as:

• AI Agents & Automation systems that handle and assist high-volume customer conversations
• Real-Time Agent Assist delivering live guidance and insights during interactions
• Conversation Intelligence extracting insights from millions of conversations
• AI Evaluation & Reliability improving quality consistency and observability of LLM systems
• Platform & Infrastructure enabling scalable low-latency AI experiences

Crestas platform powers the full contact center workflowfrom real-time assistance and automation to post-call analytics and continuous optimization.

Youll operate in a high-ownership fast-moving environment where interns are expected to contribute meaningfully not just observe.

• Design and build systems that support real-time AI-powered customer interactions
• Work on features combining LLMs data systems and user-facing applications
• Collaborate with engineers product and ML teams to ship production-ready solutions
• Build systems for evaluation monitoring and continuous improvement of AI behavior
• Optimize for low latency high throughput and reliability at scale
• Take ownership of problems end-to-endfrom identifying gaps to shipping solutions

• Experience with one or more programming languages (e.g. Python Go Java JavaScript TypeScript)
• Interest in building user-facing products backend systems or real-time/data-intensive applications
• Familiarity with modern web development (frontend and/or backend) APIs or system design fundamentals
• Understanding of building reliable maintainable systemsthis could include UI/UX quality API design or performance considerations
• Curiosity about LLMs AI agents or production AI systems (no prior ML experience required)
• Experience using AI-powered developer tools (e.g. Cursor Claude Code) to accelerate development workflows
• Strong proficiency in agentic coding workflowseffectively collaborating with AI tools to design implement and iterateis a strong plus
• A driver mindsetyou proactively identify problems take initiative and push work forward rather than waiting for direction
• Strong problem-solving ability and a bias toward action

• How to build and ship production-grade AI systems used in real customer environments
• How to design systems balancing model quality latency and reliability
• How AI agents are deployed evaluated and improved at scale
• How contact centers evolve from manual workflows to AI-driven operations

• AI in production: Our systems operate in live contact centers not demos
• Hybrid workforce: Were defining how human and AI agents work together
• Real business impact: We directly influence revenue cost and customer experience
• Driver culture: We value people who take initiative move fast and own outcomes end-to-end
• Ownership & velocity: Engineers are trusted to ship and make decisions early

• Location: Toronto (remote-friendly; no in-office mandate but we encourage in-person collaboration)
• Compensation: CAD $30-50/hour
  Outstanding performers are eligible for return co-op and full-time offers well above our posted range.
  
  
• Perks:
• Lunch and dinner can be expensed (up to $25 each) while working in the office
• Well-stocked office with snacks and drinks
• Convenient downtown location near Union Station (public transit accessible)
• PTO: 4 days
• Exposure to cutting-edge AI systems in production
• Potential return offer

At Cresta you wont just learn about AIyoull help build the systems redefining how contact centers operate. From real-time agent assist to autonomous AI agents your work will directly impact how millions of customer conversations are handled.

Past interns consistently highlight Crestas strong engineering culture and ownership-driven environment as a standout compared to their previous internship experiences. We invest in giving interns real responsibility meaningful projects and close collaboration with experienced engineers.

If you want to own real problems ship quickly and work at the frontier of applied AI youll fit right in.

To help us find the best team match please include a brief note on the type of problems you most enjoy working on. For example:

• Backend / distributed systems / infrastructure
• Frontend / UI engineering / product experience
• Full product development (end-to-end features)
• AI / machine learning / applied LLMs
• Data / analytics / experimentation
• Or anything else youd like us to highlight

We cant guarantee specific team placement but we use this input to help guide matching wherever possible.

We have noticed a rise in recruiting impersonations across the industry where scammers attempt to access candidates personal and financial information through fake interviews and offers. All Cresta recruiting email communications will always come from the @ outreach claiming to be from Cresta via other sources should be ignored. If you are uncertain whether you have been contacted by an official Cresta employee reach out to