Hire Slack Developers

Hire the Top 3% of Freelance Slack Developers

Toptal is a marketplace for top Slack developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Slack freelancers for their mission-critical software projects.

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Clients rate Toptal Slack developers 4.9 / 5.0 on average based on 4,064 reviews.
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Dominic Whitworth

Freelance Slack Developer
Verified Expert in Engineering
UTC-07:00
United States
Toptal Member Since September 13, 2022

Dominic is a well-rounded systems, software, and electronics engineer with over 15 years of professional development experience. He has a bachelor's degree in electronic engineering and a master's degree in digital signal processing. Over the years, Dominic has developed complex systems and used multiple software languages across the full-stack, contributing to, building, and maintaining many platforms as an architect, including one that enabled him to sell his business for over $10 million.

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Storme Briscoe

Freelance Slack Developer
Verified Expert in Engineering
UTC-07:00
United States
Toptal Member Since April 1, 2022

Storme is a senior back-end engineer with over eight years of experience building highly scalable APIs and apps. He specializes in Java and Go, working with various databases like PostgreSQL and MySQL and implementing different event architectures that heavily use Kafka and other similar tools.

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Brec Hanson

Freelance Slack Developer
Verified Expert in Engineering
UTC-06:00
United States
Toptal Member Since September 2, 2022

Brec is a senior front-end developer and an expert at converting designs to pixel-perfect interfaces by leveraging React and TypeScript. He has over five years of experience in various industries, including software, healthcare, real estate, and edtech. He's also worked in a highly Agile environment with an organized approach. Brec is an excellent communicator who is comfortable driving conversations that lead to product improvements and is motivated to deliver maximum customer value.

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Jason C. Keller

Freelance Slack Developer
Verified Expert in Engineering
UTC-05:00
United States
Toptal Member Since November 17, 2016

Jason has a great breadth of experience in physics, signal processing, and app development. His quickness in identifying simple, clear, modular approaches enables him to design systems that are expandable, stable, transparent, and maintainable. He uses portable frameworks wherever possible (Docker, MVC/EF/ASP.NET Core) to continually drive simplicity, portability, and to best leverage advances made by the greater development community.

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Harrison Mendonça

Freelance Slack Developer
Verified Expert in Engineering
UTC-03:00
Brazil
Toptal Member Since June 24, 2019

Harrison is a front-end developer with 13 years of experience developing apps, websites, and interactive installations. He founded Grama, a front-end services company, and Cammada, an online marketplace for 3D printing. Harrison studied Graphic Design in Brazil and devotes his extra time to research and experimentation.

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Ricardo Cardoso

Freelance Slack Developer
Verified Expert in Engineering
UTC-03:00
Brazil
Toptal Member Since September 22, 2021

Ricardo is a product-minded developer who loves understanding and helping clients by providing optimal technical solutions. Graduated in electrical engineering, he's worked as an IT specialist, financial analyst, product manager, and developer for some well-known companies, namely IBM and StoneCo. Ricardo is passionate about art, sports, development, and design and is willing to deliver result-oriented front-end projects filled with challenges from scratch.

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Ales Kocur

Freelance Slack Developer
Verified Expert in Engineering
UTC+01:00
Czech Republic
Toptal Member Since October 30, 2016

Ales is a passionate iOS developer. Throughout his career, he has assumed several different roles at multiple startups, including product designer, head of development, and product manager. This made him a "Swiss knife" developer who can take your idea, design the UI, and build a quality app from it. He's also an experienced technical lead and people manager, and he is comfortable doing technical research and making decisions.

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Thomas Jansen

Freelance Slack Developer
Verified Expert in Engineering
UTC+01:00
Germany
Toptal Member Since December 4, 2020

Thomas is a technology executive, product leader, and engineer with over a decade of experience. He works as a lead engineer, solution architect, and full-stack developer. Previously, he led various development organizations and helped to build and scale various international technology startups. Thomas creates exceptional end-user experiences with a strong focus on UX, helps others advance, and continuously expands his technology repertoire.

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Anna Avanesyan

Freelance Slack Developer
Verified Expert in Engineering
UTC+04:00
Armenia
Toptal Member Since June 24, 2021

Anna is an experienced back-end engineer with over five years experience in top IT companies and a BBA in computer science from the American University of Armenia. She has extensive experience creating and maintaining RESTful microservice applications using Node.js and Nest.js and databases with mobile and web payment systems integration. Anna has developed applications that have served over 150 million monthly active users.

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Georgy Cheshkov

Freelance Slack Developer
Verified Expert in Engineering
UTC+04:00
Georgia
Toptal Member Since March 11, 2021

Georgy is a software engineer, technical consultant, and team leader with over a decade of experience. He makes complex problems simple with expressive, maintainable code and believes in building small, well-tested, functional pieces loosely joined by a well-documented contract. He has delivered eCommerce, ERP, finance, trading, and cryptocurrency solutions. Georgy is a dedicated and efficient developer and a great communicator.

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Nabeel Ahmed

Freelance Slack Developer
Verified Expert in Engineering
UTC+10:00
Australia
Toptal Member Since November 17, 2022

Nabeel is a lead architect with 16+ years of experience in business solution design, development, and delivery across Asia-Pacific. He has extensive development and leadership experience designing innovative solutions and providing motivation, guidance, and up-to-date consultancy services for Microsoft Power Platforms, Dynamics 365, Pega, Nintex, and UiPath. He engages directly with clients, helping them define their needs and leading teams to drive the shared organizational vision and growth.

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Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
Creating an app for the game
Conor Kenney
Creating an app for the game
Leading a digital transformation
Elmar Platzer
Leading a digital transformation
Building a cross-platform app to be used worldwide
Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
Drilling into real-time data creates an industry game changer
Testimonials

How to Hire Slack Experts Through Toptal

1

Talk to One of Our Client Advisors

A Toptal client advisor will work with you to understand your goals, technical needs, and team dynamics.
2

Work With Hand-selected Talent

Within days, we'll introduce you to the right Slack engineer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new Slack developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

EXCEPTIONAL TALENT

How We Source the Top 3% of Slack Developers

Our name “Toptal” comes from Top Talent—meaning we constantly strive to find and work with the best from around the world. Our rigorous screening process identifies experts in their domains who have passion and drive.

Of the thousands of applications Toptal sees each month, typically fewer than 3% are accepted.

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Capabilities of Slack Developers

Toptal developers specialize in building Slack integrations to enhance team collaboration and productivity. They create custom Slack apps, automate workflows, and ensure seamless connectivity between Slack and external tools.

Custom Slack Integrations

Integrations tailored to a company’s unique needs streamline communication and improve team efficiency. Toptal developers create custom Slack apps that connect with business tools, automate workflows, and enhance collaboration.

Slackbot Functionality Enhancements

Slackbots automate repetitive tasks and improve team responsiveness. Our Slackbot developers design and refine bots that respond to queries, trigger actions, and streamline workflows.

Workflow Automation with Slack APIs

Automation improves efficiency by reducing manual effort in team processes. Our development experts utilize Slack’s API and workflow automation tools to trigger notifications, manage approvals, and streamline operations.

Secure Authentication and Permissions Management

Robust authentication ensures that Slack integrations remain secure and compliant. Our Slack specialists implement OAuth authentication, manage app permissions, and enforce security best practices to protect data.

Integration with CRM, Project Management, and DevOps Tools

Slack integrations keep teams aligned and improve visibility across the many digital platforms where work happens. Toptal developers connect Slack with Salesforce, Jira, Trello, GitHub, and CI/CD pipelines to enhance collaboration and workflow tracking.

Interactive Commands and Message Actions

Custom commands and message actions boost efficiency and make interactions within Slack more intuitive. Our coders create slash commands, message actions, and interactive components that streamline user workflows.

UX Enhancements with Block Kit and Modals

A thoughtful user experience improves engagement and makes Slack easier to use. Toptal programmers leverage Slack’s Block Kit framework to build visually engaging messages, forms, and interactive modals.

Slack App Deployment and Scaling

Slack applications must remain efficient and reliable as usage grows. Our engineers implement robust hosting, scalable infrastructure, and efficient deployment strategies to support high-usage Slack applications.

Performance Monitoring and Debugging

Performance tracking and debugging make Slack apps more reliable. Our developers use logging, debugging tools, and real-time monitoring to optimize Slack integrations and resolve issues fast.

Compliance with Slack’s Security Guidelines

Following security best practices protects user data and maintains compliance. Our Slack specialists adhere to Slack’s security guidelines to ensure integrations meet data protection and privacy standards.

FAQs

  • How quickly can you hire with Toptal?

    Typically, you can hire Slack developers with Toptal in about 48 hours. For larger teams of talent or Managed Delivery, timelines may vary. Our talent matchers are highly skilled in the same fields they’re matching in—they’re not recruiters or HR reps. They’ll work with you to understand your goals, technical needs, and team dynamics, and match you with ideal candidates from our vetted global talent network.

    Once you select your Slack developer, you’ll have a no-risk trial period to ensure they’re the perfect fit. Our matching process has a 98% trial-to-hire rate, so you can rest assured that you’re getting the best fit every time.

  • To hire the right Slack expert, it’s important to evaluate a candidate’s experience, technical skills, and communication skills. You’ll also want to consider the fit with your particular industry, company, and project. Toptal’s rigorous screening process ensures that every member of our network has excellent experience and skills, and our team will match you with the perfect Slack developers for your project.

  • At Toptal, we thoroughly screen our Slack engineers to ensure we only match you with the highest caliber of talent. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut.

    In addition to screening for industry-leading expertise, we also assess candidates’ language and interpersonal skills to ensure that you have a smooth working relationship.

    When you hire Slack engineers with Toptal, you’ll always work with world-class, custom-matched Slack developers ready to help you achieve your goals.

  • You can hire Slack developers on an hourly, part-time, or full-time basis. Toptal can also manage the entire project from end-to-end with our Managed Delivery offering. Whether you hire a Slack developer for a full- or part-time position, you’ll have the control and flexibility to scale your team up or down as your needs evolve. Our Slack developers can fully integrate into your existing team for a seamless working experience.

  • We make sure that each engagement between you and your Slack developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another Slack developer who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-class Talent

  • Trusted Talent Only

    Trusted Talent Only

    Our talent are thoroughly vetted professionals who ramp up quickly, function as essential team members, and deliver results.

  • Precise Matching

    Precise Matching

    Our experienced talent matchers specialize in pairing you with the right fit. They work to understand exactly what you need and hand-select the best professionals for your project.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDAs, streamlining the hiring process so you can focus on innovation, not overhead.

  • No-risk Trial Period

    No-risk Trial Period

    We want to be sure your engagement is a total success, so we offer a no-risk trial period. Work with your new hire for up to two weeks and pay only if you’re satisfied.

  • Effortless Scaling

    Effortless Scaling

    Scale your team up or down as needed, with quick and efficient hiring in under 48 hours.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs—hourly, part-time, or full-time— and enjoy the flexibility to adjust as needed.

Top Slack Developers Are in High Demand.

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