Software Engineer; SWE​/SWE II), AI Platform- Slack

Software Engineer (SWE/SWE II), AI Platform - Slack

Job Category:
Software Engineering

Slack AI's mission is to transform how people work by making Slack an AI‑powered operating system. We're tackling significant challenges such as unlocking collective knowledge and reducing noise while building a seamless, consumer‑grade AI experience within users' existing workflows.

The AI and ML Infrastructure team is part of Slack's Core Infrastructure organization and is responsible for the foundational systems that enable machine learning and AI across the company. The team designs, builds, and operates reliable, scalable, and high‑performance platforms that allow product and ML teams to develop, deploy, and operate AI‑driven capabilities with confidence.

The team owns shared infrastructure, services, and tooling that support the full ML lifecycle, including model training, deployment, inference, and monitoring. As Slack AI continues to grow, the team is evolving from traditional ML deployments toward large‑scale, highly distributed model systems. This work involves deep architectural decisions around scalable model deployment strategies, real‑time feature serving at very high throughput, GPU‑accelerated inference at message scale, and responsible training of models on sensitive data with strong privacy and safety requirements.

• Drive the evolution of Slack's AI and ML platform toward a self‑service, developer‑friendly environment that improves velocity and reliability.
• Build and maintain SDKs, feature generation tools, and CI/CD pipelines that make it easy for product teams to integrate AI into their workflows.
• Manage and evolve integrations with managed AI services across multiple cloud providers.
• Design and operate AI quality evaluation frameworks and prompt engineering infrastructure to ensure AI features meet high standards for reliability and user experience.
• Collaborate closely with ML modeling, AI quality, and product engineering teams to design platforms that meet evolving technical and business needs.

• Experience building developer tooling, libraries, or CI/CD pipelines that improve engineering speed, quality, and usability.
• Experience operationalizing Large Language Models (LLMs) and building integrations with first‑party APIs and external cloud provider APIs such as AWS, GCP, or Azure.
• Experience with AI quality evaluation frameworks, prompt engineering infrastructure, or developer tooling for ML workflows.
• Strong proficiency in Python, PHP or Hacklang and experience with infrastructure as code and modern software engineering practices.
• Ability to communicate complex technical concepts clearly and effectively to a broad range of stakeholders.
• Love to model modern methodologies for unit tests, code review, design documentation, debugging, and troubleshooting.
• Curious, inquisitive, and determined to fix things when they break.
• Work well with a team of diverse backgrounds and experience on complicated projects.
• A related technical degree is required.

If you need a reasonable accommodation during the application or recruiting process, please submit a request via this Accommodations Request Form.

Salesforce is an equal‑opportunity employer and maintains a policy of non‑discrimination with all employees and applicants for employment. All employees and candidates are assessed on the basis of merit, competence, and qualifications without regard to race, religion, color, national origin, sex, sexual orientation, gender identity or expression, transgender status, age, disability, veteran or marital status, political viewpoint, or other classifications protected by law.

Recruiting, hiring, and promotion decisions at Salesforce are fair and based on merit.

In the United States, compensation for this position will be determined by location, job level, job‑related knowledge, skills, and experience. The typical base salary range is $117,200 - $223,900 annually. Certain roles may be eligible for incentive compensation, equity, and benefits. Salesforce offers benefits including time‑off programs, medical, dental, vision, mental health support, paid parental leave, life and disability insurance, 401(k), and an employee stock‑purchasing program.