Software Engineer II (Full-Stack)

The Experience

Our team is at the forefront of transforming how users interact with their Salesforce data through a deeply-integrated experience in Slack. We work at the intersection of enterprise-scale infrastructure, real-time messaging, and intuitive user experiences. We’re building the next generation of communication and collaboration features, connecting users to the information and conversations that matter most—right where they work.

We’re looking for a senior engineer to bridge the gap between product vision and technical reality, shipping features that work at enterprise scale.

The ideal candidate will be:

• Technical: You have deep expertise in distributed systems and can make sound architectural decisions. You bring strong technical judgment and can mentor others through complex challenges.
• A Builder: You thrive on shipping high-quality code and seeing your work impact millions of users. You balance practicality with excellence, knowing when to move fast and when to invest in long-term solutions.
• Customer-Focused: You think deeply about the developer and end-user experience, understanding how technical decisions translate to customer value.
• A Communicator: You excel at explaining complex technical concepts in accessible terms, bridging conversations between engineers, product managers, designers, and executives. You know how to tailor your message to your audience while maintaining technical accuracy.

What You'll Actually Be Doing

• Your technical problem-solving skills will be essential as you debug complex issues spanning distributed systems, develop performant APIs that ensure reliable data synchronization between platforms, and build software solutions designed for enterprise environments with strict requirements for security, performance, and scalability. You’ll take complete ownership of code quality through comprehensive testing, code reviews, and participation in on-call rotations to maintain high availability.
• You will collaborate closely with Product Managers, Architects, UX designers, and engineering teams across both Salesforce and Slack organizations. As a senior engineer, you will conduct technical research, present technical proposals to stakeholders, facilitate architecture discussions, and work closely with Product Managers to translate business requirements into scalable technical solutions. Your role involves advocating for engineering best practices while balancing competing priorities and timelines, ensuring that both immediate customer needs and long-term platform stability are addressed.
• You will coordinate cross-functional efforts to deliver features on schedule. This includes breaking down complex projects into manageable milestones, identifying potential risks early, and maintaining clear communication channels with all stakeholders. You’ll be responsible for ensuring code quality through comprehensive testing strategies and coordinating deployments across distributed systems.

You're Our Person If...

• Technical Leadership: Experience partnering with other engineers, leading technical designs, or driving engineering initiatives across teams.
• Backend or Full Stack Expertise: 5+ years of professional experience in backend or full-stack software development, with a track record of delivering high-impact projects.
• Debugging & Problem Solving: Demonstrated expertise in debugging complex systems across the full stack and troubleshooting difficult production issues.
• Enterprise Software: Background in Enterprise Software Development, understanding security, performance optimization, and compliance requirements.
• Distributed Systems: Experience building and operating distributed systems at scale, understanding challenges like eventual consistency, fault tolerance, and high availability.
• API Design: Proven ability to design and implement RESTful APIs and real-time communication patterns (webhooks, websockets, event-driven architectures).
• AI-Assisted Engineering: Skilled at incorporating AI tools into daily workflows (coding, debugging, documentation) as productivity multipliers while retaining strong independent problem-solving skills and technical judgment.
• Java Proficiency: Strong experience writing and maintaining production Java code, with deep understanding of JVM-based systems.

Even Better If...

• Salesforce Platform Experience: Hands-on experience with Salesforce development (Apex, Lightning Web Components, Salesforce APIs) or deep familiarity with the Salesforce ecosystem.
• Slack Platform Knowledge: Experience building Slack apps, working with Slack APIs, or understanding Slack’s real-time messaging architecture.
• Observability: Experience building well-monitored, supportable applications that are instrumented to track user engagement and help developers quickly diagnose production issues.
• Integration Experience: A background working with complex product integrations or connecting disparate systems.
• JavaScript & Frontend: Solid experience with TypeScript, JavaScript and modern frontend frameworks, particularly Lightning Web Components (LWC) or similar component-based architectures (React, Vue, etc.).
• Real-Time Systems: Experience building real-time messaging, notification, or event-driven systems.
• GenAI Integration: Hands-on experience working with generative AI APIs (OpenAI, Anthropic, etc.) or Salesforce Einstein AI, including implementing AI features with appropriate guardrails and monitoring.
• Hack Language: Experience with Hack (PHP-based language developed by Meta/Facebook) or similar typed languages in high-performance web environments.

Slack Software Engineer II is the equivalent of Salesforce SMTS Level.