Cantina

Security Engineer

• Build product capabilities across application security, security operations, and agent security
• Turn real security workflows into product experiences and platform primitives
• Design systems that ingest, correlate, triage, and act on security signals
• Help define safe patterns for agents, tools, permissions, memory, and execution boundaries
• Identify hidden risks and failure modes that only someone with real security experience would see
• Partner with product and engineering to make strong tradeoffs between speed, usability, and security
• Contribute to evaluation, testing, observability, and guardrails for agentic behavior
• Raise the team’s overall understanding of security architecture, operations, and AI risk

Staff Security Product Engineer

iOS Engineer

• Work with frameworks and technologies like UIKit, AVFoundation, Combine, Core Animation, and more.
• Lead development of new AI and media-driven features.
• Build and optimize video/audio pipelines, real-time media effects, and AI-powered visual features.
• Participate in Architecture meetings to help ensure our apps meet the highest quality standards.
• Collaborate with Product, Design, and QA teams to deliver polished, scalable experiences.
• Take ownership of features — be part of a small team that ships an application to a large user base.
• Be part of an incredibly supportive team that values feedback, both positive and career-growth oriented.

iOS Engineer – Senior to Staff Level

AI Research Scientist

• Build and maintain end-to-end data pipelines for large-scale image and video datasets: collection, filtering, augmentation, conditioning alignment, and efficient storage/sampling.
• Implement model architectures (diffusion, autoregressive, flow-based, diffusion transformers, etc.) and maintain high-throughput PyTorch training loops for large-scale image and video diffusion models.
• Run and manage large-scale training experiments on multi-GPU and multi-node setups (DDP, FSDP, DeepSpeed). Debug training instabilities, loss spikes, and convergence issues.
• Apply quantization, pruning, and knowledge distillation techniques to compress models without sacrificing quality.
• Collaborate with researchers and translate state-of-the-art research papers into working implementations in our internal codebase (e.g., new attention mechanisms, sampling schedules, or conditioning methods).
• Build and maintain evaluation pipelines of image quality, video consistency, and perceptual metrics.
• Set up and maintain human annotation and evaluation pipelines using services like AWS GroundTruth.
• Profile and optimize training speed, GPU memory utilization, and iteration time. Implement inference optimizations to reduce latency and compute cost.
• Work with acceleration toolchains such as torch.compile, Triton, TensorRT, or ONNX where appropriate

AI Research Engineer, Computer Vision

Accounting Manager

• Record Financial Transactions: Accurately record all daily financial transactions, including but not limited to credit card transactions, bank transactions in accordance with company policies and GAAP.
• Account Reconciliation: Regularly reconcile bank accounts, payroll and credit card statements with internal records to ensure accuracy and resolve any discrepancies.
• Accounts Payable: Handle Accounts Payable process, entering bills into accounting systems, reconcile vendor payments. Reconcile vendor accounts after each payment cycle.
• Accounts Receivable: Apply customer payments to invoices accurately and timely, ensuring proper allocation across services, retainers, and other revenue streams. Monitor accounts receivable aging reports and follow up on outstanding balances to support timely collections. Assist with revenue recognition support by ensuring payments are properly matched to invoices and reporting periods.
• Assist with Monthly Financial Statements: Support monthly, quarterly, and year-end close processes by preparing journal entries, account reconciliations, and accrual schedules.

Accounting Specialist

• Perform deep-dive security reviews of smart contracts, protocols, and blockchain infrastructure
• Analyze protocol designs and identify attack surfaces across DeFi primitives, tokenomics, governance, MEV, bridges, and ZK systems
• Work within a pod or as part of a curated team with other senior researchers
• Provide actionable recommendations with clear technical and business impact assessments
• Reproduce exploits, write POCs, and occasionally contribute patches
• Publish post-mortems, technical articles, and internal reports as part of the knowledge-sharing culture

Security Researcher

Operations

• Own post-sale end-to-end project setup
• Track project readiness and communicate updates across teams
• Coordinate resources assignments and team availability based on scope and skillset
• Provide internal teams with resource recommendations for upcoming projects
• Support delivery team members by addressing logistical and operational concerns
• Contribute to ongoing process improvements within CS operations

Operations Associate

Machine Learning Engineer

• Evaluate new image generation and identity preservation papers and models.
• Develop and deploy new versions of the image generation and image analysis pipelines
• Monitor and fix production issues that impact users
• Fine-tune and optimize models to improve character consistency, prompt responsiveness, and inference latency
• Design and run experiments to benchmark model performance, tracking quality metrics across generations of pipeline improvements
• Collaborate with cross-functional teams to translate product requirements into ML solutions and bring new generative features from prototype to production

Machine Learning Engineer, Images

Full-stack Engineer

• Collaborate closely with cross-functional teams, including product managers, designers, and data specialists, to deliver high-quality, performant, and maintainable features.
• Experiment with and integrate new AI image, video, and voice generation technologies used to bring AI characters to life.
• Build tooling and infrastructure around various AI technologies.
• Gain exposure to the architecture and operations behind one of the fastest-growing social AI products globally.
• Contribute your expertise to help evolve team processes and technical infrastructure, ensuring scalability and reliability.

Staff Software Engineer, Bots

Community Manager

• Serve as the go-to expert on Cantina’s product, owning a deep understanding of tools, workflows, edge cases, and creator use cases across the platform.
• Own and maintain Help Center articles, ensuring documentation is clear, accurate, and up to date
• Proactively identify gaps in creator education and create new resources, guides, or training to address them
• Design education that goes beyond written documentation, including tutorials, walkthroughs, live learning moments, workshops, and community-based learning experiences
• Ensure education resources are easy to discover and accessible across Cantina, including within the Help Center and community touchpoints.
• Continuously evaluate and improve how creators learn Cantina’s tools, workflows, and best practices throughout their lifecycle on the platform
• Educate and enable internal team members (Community, Product, Marketing) so they can better support and guide creators
• Act as a bridge between Community and Product, synthesizing recurring creator and user feedback into clear, actionable insights
• Partner closely with Product and Marketing teams to stay aligned on launches, updates, and changes that impact education content
• Track and report the most common friction points, questions, and feature misunderstandings