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Slack Employees Reviews, Feedback, Testimonials

Workplace collaboration softwareSan Francisco, USA1,001-5,000 employees
4.3
4 reviews

About Slack

Slack is a collaboration platform designed to streamline team communication through channels, messaging, file sharing, and integrations with business tools. Headquartered in San Francisco, the company became a central player in workplace collaboration and was acquired by Salesforce, which positioned Slack as a core part of enterprise productivity stacks. Slack’s software aims to reduce email dependence and improve team alignment by consolidating conversations, automations, and app workflows in one place. The organization emphasizes a culture of user-focused design, iteration, and inclusive collaboration; employees typically cite strong opportunities for product ownership, cross-functional teamwork, and learning about real-time communication systems. A distinct achievement is Slack’s widespread adoption across startups and enterprises, reshaping how organizations communicate. For job seekers, working at Slack means engaging with large-scale messaging infrastructure, integrations, and user experience challenges while contributing to tools that change how teams work together daily.

Detailed Slack employee reviews & experience

Employee Testimonials

"I love the people here — everyone is curious and willing to help," says an engineer who has been with the company for three years. Another product manager notes, "You will get exposure to big projects early on, and your ideas can actually make a difference." A customer support rep shares, "The tools we use make it easy to collaborate, and teammates are very empathetic during crunch times." These voices reflect a blend of enthusiasm and occasional frustration that you will hear if you ask around about working at Slack.

Company Culture

The company culture at Slack leans toward openness, transparency, and collaboration. Meetings are often conversational, and there is a visible emphasis on doing work that improves how teams communicate. People talk about psychological safety — you will be encouraged to speak up, but outcomes depend on your team. Diversity, equity, and inclusion efforts are present and growing, though some employees feel there is still room for more consistent follow-through across the entire organization.

Work-Life Balance

Work-life balance at Slack is a common topic in conversations. Many enjoy flexible schedules and the ability to work asynchronously, which helps when you need to juggle personal responsibilities. That said, there are periods when projects intensify and hours increase, especially around launches. Overall, the company promotes healthy boundaries, and managers generally respect time off, making work-life balance at Slack reasonable for most roles.

Job Security

Job security is mixed depending on business performance and role. Historically, the company has invested in core product areas and stable functions, and those teams tend to have steady openings. However, shifts in strategic priorities or parent company decisions can affect certain groups. Overall, job security is moderate; employees in high-impact product or revenue-generating roles will likely feel more secure.

Leadership and Management

Leadership emphasizes product vision and user-centric design. Senior leaders communicate strategy regularly and are accessible through town halls and Q&A sessions. There is a clear focus on long-term product differentiation. Management quality can vary by team; some managers are excellent coaches while others are more task-driven. In general, the leadership sets a strong product and cultural tone, but execution quality depends on local management.

Manager Reviews

Most managers are praised for being supportive, empathetic, and responsive. They tend to care about career growth and will advocate for team members. Feedback frequency and quality are uneven across the company, with some teams holding regular 1:1s and career check-ins while others fall short. If you are joining, pay attention to your hiring manager’s track record regarding mentorship and promotion support.

Learning & Development

There are solid learning resources, including internal documentation, mentorship programs, and occasional workshops. The company invests in skill development and will often sponsor courses or conference attendance for roles tied to strategic priorities. Self-directed learning is encouraged, and employees who proactively pursue development tend to advance faster.

Opportunities for Promotions

Promotions are available but are tied to clear impact and demonstrated ownership. The promotion process is fairly structured, with expectations set by role level. Career pathing exists, and high performers who take on cross-functional challenges usually find advancement opportunities. Timing for promotions can be conservative; patience and visible results are important.

Salary Ranges

Compensation is competitive with peers in the tech collaboration space but will vary by role and location. Base salaries for technical roles are generally above market median in major tech hubs, while non-technical roles are aligned with market rates. Salary transparency has improved over time, yet offers depend on experience, geography, and supply-demand dynamics.

Bonuses & Incentives

Bonus structures and equity packages are common. Bonuses are typically performance-based and tied to company and individual goals. Equity is part of compensation for many roles, making total compensation more attractive over the long term if the company performs well. Incentive programs may be rebalanced during corporate transitions.

Health and Insurance Benefits

Health benefits are solid and comprehensive. Medical, dental, and vision plans are offered, with multiple tiers to suit different needs. Parental leave policies are competitive and include support for both primary and secondary caregivers. Mental health resources and wellness stipends are available in many locations.

Employee Engagement and Events

Employee engagement is fostered through regular virtual events, team offsites, hackathons, and interest-based groups. There are channels for socializing, knowledge sharing, and volunteering. Events can range from small team gatherings to company-wide demos and celebrations. Engagement is generally high, especially among product and engineering teams.

Remote Work Support

Remote work support is strong. Tools, processes, and norms are built around distributed collaboration. The company provides stipends for home office equipment and encourages flexible work models. Remote employees are included in meetings and social activities, and hybrid policies try to balance in-person connection with remote convenience.

Average Working Hours

Average working hours vary by role and phase of projects. Many employees work a standard 40-hour week, with some flexibility for asynchronous collaboration. During product releases or major initiatives, working hours can extend into evenings or weekends. The company discourages chronic overwork and promotes sustainable pacing.

Attrition Rate & Layoff History

Attrition rates fluctuate by team but have been moderate overall. The company has undergone restructures in the past, affecting specific groups when strategic direction shifted. Layoffs have not been unheard of during broader market adjustments, though core product teams tend to be more stable. Prospective employees should watch signals from leadership about long-term strategy.

Overall Company Rating

Overall, Slack presents as a thoughtfully run company with strong product focus, collaborative culture, and good support for remote work. There are solid benefits, learning opportunities, and a generally healthy work-life balance. Some variability exists in management quality and job security tied to business shifts. If you value an open, team-oriented environment and are comfortable navigating occasional change, Slack is a strong place to work and grow.

Detailed Employee Ratings

4
Work-Life Balance
3.5
Compensation
4.5
Company Culture
3.8
Career Growth
4.3
Job Security

Filter Reviews

4 reviews found

Employee Reviews (4)

Read authentic experiences from current and former employees at Slack

4.0

Data Analyst Review

AnalyticsFull-timeOn-site
August 30, 2025

What I liked

Collaborative culture, great tools for analysis, and high-impact dashboards that are actually used by product and sales teams.

Areas for improvement

On-site days can be long and sometimes there isn't great cross-team visibility for smaller analytics projects.

5.0

Senior Software Engineer Review

EngineeringFull-timeHybrid
July 22, 2025

What I liked

Smart, thoughtful teammates and an engineering-first culture. Excellent remote tooling, generous benefits, and a clear career ladder.

Areas for improvement

Occasional crunch around big launches and some internal process overhead that can slow small projects.

4.0

Product Manager Review

ProductFull-timeRemote
March 5, 2025

What I liked

Meaningful product work, supportive leadership and a flexible remote schedule that really helps with work-life balance.

Areas for improvement

Compensation feels slightly below market for PMs and promotion cycles can be slow compared to workload.

4.0

Customer Success Manager Review

Customer SuccessFull-timeFlexible
January 10, 2025

What I liked

Flexible hours, supportive manager, and a product that customers genuinely love — made renewals easier and work fulfilling.

Areas for improvement

Salary growth was slow and Q4 implementation seasons could be exhausting, leading to burnout for some teammates.