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Oleg A., SASS Developer

Gdansk, Poland
Last Updated: 3 Jun 2024
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- 11+ years of experience in web development and 4 years of experience in the Fintech domain. - Proficient in various PHP frameworks such as YII2, Laravel and Symfony. - Experienced in front-end technologies including HTML5, CSS3, SASS, LESS, and JavaScript. - Strong knowledge of APIs and integrating payment gateways (Crypto, APM, S2S). - Expertise in designing and developing secure web applications. - Familiarity with AWS, Microsoft Azure, and other cloud infrastructure management. - Proven track record of successfully delivering projects on time and within budget, receiving commendations for technical prowess, innovative solutions, and team collaboration. - Location: Poland - Available: ASAP

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AWS (Amazon Web Services)

AWS (Amazon Web Services)

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Kostyantyn, SASS Developer

Vinnitsa, Ukraine
Last Updated: 19 Jun 2024
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- 7 years of commercial experience with JavaScript, ECMAScript 6. - 5 years with Vue.js framework (including Vue 3 core principles, Style Guide, Composition API, official documentation of the framework) - Deep understanding of HTML5 and CSS3. - Interacting with API endpoints and other web services. - Converting UI/UX mockups into functional web applications with pixel perfection - Experience with responsive layout, web sites, mini applications in JS and SPA in Vue.js. - Familiar with SOLID, DRY and other clean code design principles. - Experience with UI components like UI Kit & Bootstrap - Unit tests (Cypress) - Projects with Wordpress - Intermediary English

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JavaScript   7 yr.


Vue.js   5 yr.


WordPress   7 yr.

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Qays A., SASS Developer

Last Updated: 3 Jun 2024

- 5+ years of experience in the IT industry - Code in multiple languages, with interest in Flutter/Dart, JavaScript/TypeScript/React/NodeJS and Ruby - Worked with Flutter since the initial release date - Fluent English - Fluent Arabic - Available ASAP

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Flutter   6 yr.


Android   6 yr.

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Larysa, SASS Developer

Kyiv, Ukraine
Last Updated: 4 Jul 2023

- 1.5 years of experience in the IT industry - JS, React, Redux, HTML5, and CSS (SASS)

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Daniil G., SASS Developer

Last Updated: 4 Jul 2023

- 4+ years of experience in the IT industry as a full-stack engineer - FRONT-END: deep knowledge of JavaScript, ES6+, React, Redux, other React tools (Redux-Thunk, React-query, etc.), Material-UI, HTML5, CSS3, BEM, LESS, SASS, Bootstrap, Webpack, Vite, Jest, Lodash - BACK-END: Node.js, Typescript, Express.js, NestJS, REST API, Postgres, Docker, Google, Facebook auth - Intermediate English - Available ASAP

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Roman Masniuk August 25, 2023

I worked with Upstaff engineers for over 2 years, and my experience with them was great. We deployed several individual contributors to clients' implementations and put up two teams of upstaff engineers. Managers' understanding of tech and engineering is head and shoulders above other agencies. They have a solid selection of engineers, each time presented strong candidates. They were able to address our needs and resolve things very fast. Managers and devs were responsive and proactive. Great experience!

Volodymyr August 11, 2023

Leaving a review to express how delighted I am to have found such a great side gig here. The project is intriguing, and I'm really enjoying the team dynamics. I'm also quite satisfied with the compensation aspect. It's crucial to feel valued for the work you put in.Overall, I'm grateful for the opportunity to contribute to this project and share my expertise. I'm thrilled to give a shoutout and recommendation to anyone seeking an engaging and rewarding work opportunity.

Henry Akwerigbe August 30, 2023

This is a super team to work with. Through Upstaff, I have had multiple projects to work on. Work culture has been awesome, teammates have been super nice and collaborative, with a very professional management.There's always a project for you if you're into tech such Front-end, Back-end, Mobile Development, Fullstack, Data Analytics, QA, Machine Learning / AI, Web3, Gaming and lots more.It gets even better because many projects even allow full remote from anywhere!Nice job to the Upstaff Team 🙌🏽.

Vitalii Stalynskyi August 29, 2023

I have been working with Upstaff for over a year on a project related to landscape design and management of contractors in land design projects. During the project, we have done a lot of work on migrating the project to a multitenant architecture and are currently working on new features from the backlog.When we started this project, the hiring processes were organized well. Everything went smoothly, and we were able to start working quickly. Payments always come on time, and there is always support from managers. All issues are resolved quickly.Overall, I am very happy with my experience working with Upstaff, and I recommend them to anyone looking for a new project. They are a reliable company that provides great projects and conditions. I highly recommend them to anyone looking for a partner for their next project.

Maryna Navo September 25, 2023

Крутий сервіс, зручна комунікація. Допомогли з закриттям мого питання на 200%

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FAQs about SASS Development

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If you urgently need a verified and qualified SASS developer, and resources for finding the right candidate are lacking, Upstaff is exactly the service you need. We approach the selection of SASS developers professionally, tailored precisely to your needs. From placing the call to the completion of your task by a qualified developer, only a few days will pass.

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Undoubtedly, there are dozens, if not hundreds, of specialized services and platforms on the network for finding the right SASS engineer. However, only Upstaff offers you the service of selecting real qualified professionals almost in real time. With Upstaff, software development is easier than calling a taxi.

How are Upstaff SASS developers different? Arrow

AI tools and expert human reviewers in the vetting process are combined with a track record and historically collected feedback from clients and teammates. On average, we save over 50 hours for client teams in interviewing SASS candidates for each job position. We are fueled by a passion for technical expertise, drawn from our deep understanding of the industry.

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Our journey starts with a 30-minute discovery call to explore your project challenges, technical needs, and team diversity. Meet Carefully Matched SASS Talents. Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person. Validate Your Choice. Bring a new SASS developer on board with a trial period to confirm that you’ve hired the right one. There are no termination fees or hidden costs.

How does Upstaff vet remote SASS engineers? Arrow

Upstaff Managers conduct an introductory round with potential candidates to assess their soft skills. Additionally, the talent’s hard skills are evaluated through testing or verification by a qualified developer during a technical interview. The Upstaff Staffing Platform stores data on past and present SASS candidates. Upstaff managers also assess talent and facilitate rapid work and scalability, offering clients valuable insights into their talent pipeline. Additionally, we have a matching system within the platform that operates in real-time, facilitating efficient pairing of candidates with suitable positions.

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Table of Contents

Hard skills of a SASS Developer

Hard skills

SASS Developer is a professional skilled in using SASS (Syntactically Awesome Style Sheets) to enhance the functionality and maintainability of CSS code. They possess a deep understanding of CSS preprocessors and utilize SASS to streamline the development process and create more efficient stylesheets.


  • Proficient in SASS syntax and features.
  • Knowledge of variables, mixins, and nesting.
  • Ability to write reusable and modular code.
  • Familiarity with CSS frameworks and libraries.
  • Basic understanding of CSS architecture and best practices.


  • Expertise in advanced SASS concepts like functions and placeholders.
  • Experience in managing complex SASS projects.
  • Ability to optimize SASS code for performance.
  • Knowledge of CSS methodologies (e.g., BEM, SMACSS).
  • Proficient in using SASS with build tools (e.g., Gulp, Webpack).
  • Understanding of responsive design principles.
  • Ability to collaborate with designers and frontend developers.


  • Mastery of SASS and its advanced features.
  • Extensive experience in architecting scalable and maintainable SASS codebases.
  • Ability to create custom SASS frameworks and libraries.
  • Proficient in performance optimization techniques for SASS.
  • Deep understanding of CSS architecture and design patterns.
  • Knowledge of CSS-in-JS solutions and their integration with SASS.
  • Experience in mentoring and guiding junior developers.
  • Expertise in debugging and troubleshooting SASS-related issues.

Expert/Team Lead

  • Subject matter expert in SASS and CSS preprocessors.
  • Ability to lead and guide a team of SASS developers.
  • In-depth knowledge of browser compatibility and polyfills.
  • Experience in performance profiling and optimization for large-scale applications.
  • Expertise in integrating SASS with frontend frameworks (e.g., React, Angular).
  • Understanding of design systems and component-based architecture.
  • Ability to drive innovation and introduce new SASS-related technologies.
  • Excellent problem-solving and decision-making skills.
  • Strong communication and collaboration abilities.
  • Continuous learning and staying updated with the latest SASS trends.
  • Experience in conducting code reviews and enforcing coding standards.

How and where is SASS used?

How and where
Case NameCase Description
1. NestingSASS allows you to nest your CSS selectors, making it easier to organize and structure your code. This feature helps to improve readability and maintainability of the codebase. For example, you can nest a selector for a specific element within the selector of its parent element, reducing the need for repetitive code.
2. VariablesSASS provides the ability to define variables, which can be reused throughout your stylesheets. This feature allows you to easily update colors, font sizes, or any other properties by simply modifying the variable value at a single location, resulting in consistent styles across your project.
3. MixinsMixins in SASS allow you to define reusable blocks of CSS code. This feature helps to reduce code duplication and promotes code modularity. For instance, you can create a mixin for handling vendor prefixes, and then include it wherever needed, saving time and effort in writing and maintaining repetitive code.
4. FunctionsSASS supports the creation of custom functions, enabling you to perform calculations, manipulate values, and apply complex logic within your stylesheets. This capability enhances the flexibility and power of SASS, allowing you to build more dynamic and responsive designs.
5. InheritanceSASS supports inheritance through the use of the `@extend` directive. This feature allows you to extend the styles of one selector to another, reducing code repetition and promoting consistent styling. It is particularly useful when dealing with similar elements that share common properties.
6. ImportingSASS allows you to split your stylesheets into separate files and import them into a single file. This feature enhances code organization and modularity, making it easier to manage large-scale projects. It also enables team collaboration by providing a clear separation of concerns.
7. Media QueriesSASS simplifies the usage of media queries by providing a more concise and readable syntax. With SASS, you can nest media queries within the corresponding selectors, keeping related styles together. This approach improves the maintainability of responsive designs and reduces the chances of errors.
8. ExtensibilitySASS is highly extensible, allowing you to incorporate third-party libraries and frameworks. By leveraging the power of SASS extensions, such as Compass or Bourbon, you can access additional features, mixins, and functions, further enhancing your development workflow and productivity.
9. Team CollaborationSASS promotes team collaboration by providing a standardized and structured approach to CSS development. Its features, such as variables, mixins, and nesting, make it easier for team members to understand and contribute to the codebase, resulting in more efficient teamwork and easier code maintenance.
10. Code ReusabilityWith SASS, you can create modular and reusable code by utilizing features like mixins, functions, and variables. This promotes code reusability across different projects or within the same project, saving development time and effort. Furthermore, SASS allows you to create libraries of styles that can be shared and reused across multiple applications.

Soft skills of a SASS Developer

Soft skills

Soft skills are essential for a SASS Developer as they contribute to effective communication, collaboration, and overall success in the workplace. Here are the key soft skills required at different levels of experience:


  • Attention to detail: Ability to meticulously review and spot errors in code and designs.
  • Adaptability: Willingness to learn new concepts and adapt to evolving technologies.
  • Teamwork: Collaboration with colleagues to solve problems and achieve project goals.
  • Time management: Efficiently managing tasks and meeting deadlines.
  • Effective communication: Expressing ideas clearly and actively listening to others.


  • Problem-solving: Analyzing complex issues and finding innovative solutions.
  • Leadership: Guiding and mentoring junior team members.
  • Critical thinking: Evaluating different approaches and making informed decisions.
  • Conflict resolution: Resolving conflicts within the team in a constructive manner.
  • Client management: Building strong relationships with clients and managing expectations.
  • Presentation skills: Effectively conveying ideas and delivering presentations.
  • Collaboration: Working seamlessly with cross-functional teams to achieve project objectives.


  • Strategic thinking: Developing long-term plans and strategies.
  • Project management: Successfully managing complex projects from start to finish.
  • Mentorship: Providing guidance and support to junior and middle-level developers.
  • Decision-making: Making sound judgments based on experience and expertise.
  • Emotional intelligence: Understanding and managing emotions to build strong relationships.
  • Negotiation skills: Negotiating contracts, terms, and agreements with clients.
  • Effective delegation: Assigning tasks and responsibilities to team members efficiently.
  • Continuous learning: Keeping up with industry trends and acquiring new skills.

Expert/Team Lead

  • Strategic leadership: Setting the overall vision and direction for the team.
  • Team management: Ensuring effective coordination and performance of the entire team.
  • Influence and persuasion: Convincing stakeholders and gaining buy-in for ideas.
  • Conflict management: Resolving conflicts at a higher level and maintaining team harmony.
  • Business acumen: Understanding the business aspects and aligning development goals.
  • Decision-making: Making crucial decisions that impact the organization’s success.
  • Networking: Building and maintaining a strong professional network.
  • Innovation: Driving innovation and fostering a culture of creativity within the team.
  • Strategic partnerships: Establishing strategic partnerships with key stakeholders.
  • Change management: Leading teams through organizational changes and transitions.
  • Thought leadership: Contributing to industry knowledge and advancements.

TOP 10 SASS Related Technologies

Related Technologies
  • HTML5

    HTML5 is the cornerstone of modern web development, providing the structure and semantics for web pages. It offers new elements, attributes, and APIs that enhance the user experience and enable rich media integration.

  • CSS3

    CSS3 is the latest version of the Cascading Style Sheets language, which is used to define the presentation and layout of web pages. It introduces new features like transitions, animations, and flexible box layout, allowing developers to create visually engaging and responsive designs.

  • JavaScript

    JavaScript is a versatile programming language that powers interactivity on the web. It enables developers to create dynamic and interactive web applications, handle user events, and manipulate the content of web pages in real-time.

  • Bootstrap

    Bootstrap is a popular front-end framework that simplifies the process of building responsive and mobile-first websites. It provides a set of pre-designed CSS and JavaScript components, such as grids, buttons, and navigation bars, that can be easily customized and integrated into projects.

  • React

    React is a JavaScript library for building user interfaces. It allows developers to create reusable UI components and efficiently update the user interface in response to changes in data. React’s virtual DOM and component-based architecture contribute to its popularity and performance.

  • Node.js

    Node.js is a runtime environment that allows developers to execute JavaScript code on the server-side. It enables the creation of scalable and efficient web applications by leveraging non-blocking I/O and event-driven programming. Node.js is widely used for building server-side APIs, real-time applications, and microservices.

  • Git

    Git is a distributed version control system that enables developers to track changes in their codebase, collaborate with others, and manage different versions of their projects. It provides features like branching, merging, and conflict resolution, making it essential for software development teams.

Pros & cons of SASS

Pros & cons

6 Pros of SASS

  • SASS improves the efficiency and speed of CSS development by providing features like variables, mixins, and nesting, which allow for easier code reuse and organization.
  • By using variables in SASS, you can define values once and use them throughout your stylesheets, making it easier to update and maintain consistent styles across your project.
  • Mixins in SASS allow you to define reusable blocks of code, which can be included wherever needed, reducing repetition and promoting modular code.
  • SASS supports nested selectors, allowing you to write more concise and readable CSS by nesting selectors within one another, mimicking the structure of your HTML.
  • SASS has a robust ecosystem with a large community and extensive documentation, making it easy to find support and resources when needed.
  • SASS is compatible with CSS, meaning you can gradually introduce SASS into your existing projects without needing to rewrite your entire CSS codebase.

6 Cons of SASS

  • Learning SASS requires additional time and effort compared to writing plain CSS, as it introduces new concepts and syntax.
  • Using SASS introduces an extra step in the development process, as you need to compile your SASS code into CSS before deploying it to production.
  • Introducing SASS to an existing project may require refactoring existing CSS code to take full advantage of SASS features, which can be time-consuming.
  • Dependency on a build process or a SASS compiler is needed to convert SASS code to CSS, which may add complexity to your development workflow.
  • Using advanced features of SASS, such as mixins and complex nesting, can lead to bloated CSS output if not used carefully, impacting page load performance.
  • Collaboration with developers who are not familiar with SASS may require additional effort in explaining and maintaining the SASS codebase.

Cases when SASS does not work

Does not work
  1. SASS does not work in browsers without a preprocessor: SASS is a CSS preprocessor that needs to be compiled into regular CSS before it can be interpreted by web browsers. This means that if you’re working with a browser that does not have a built-in or third-party SASS compiler, SASS will not work directly in that browser. However, most modern web development workflows include a build step that compiles SASS into CSS, allowing it to work across a wide range of browsers.
  2. SASS does not work without a proper build setup: In order to use SASS effectively, you need to set up a build process or a task runner that compiles your SASS code into CSS. Without a proper build setup, your SASS code will not be transformed into CSS and will not work as expected. This means that if you’re not using a build tool like Gulp, Grunt, or webpack, SASS may not work for you.
  3. SASS does not work if not properly installed: In order to use SASS, you need to have it installed on your machine. If SASS is not installed or not properly configured, you will not be able to compile your SASS code into CSS. Make sure to follow the installation instructions provided by the official SASS documentation to ensure that it is set up correctly.
  4. SASS does not work with invalid syntax: SASS has its own syntax, which is different from regular CSS. If you write SASS code with invalid syntax, the compiler will fail to compile it into CSS, and you may encounter errors. It is important to understand and follow the correct SASS syntax to ensure that your code works as expected.
  5. SASS does not work if you’re not familiar with it: SASS is a powerful tool, but it requires some learning and practice to use effectively. If you’re not familiar with SASS and its features, it may be challenging to work with and may not deliver the desired results. Taking the time to learn SASS and its various features will greatly enhance your ability to use it effectively.

What are top SASS instruments and tools?

Instruments and tools
  • Dart Sass: Dart Sass is the primary implementation of Sass, a CSS preprocessor language. It was first released in 2018 and has gained widespread adoption due to its speed and reliability. Dart Sass is known for its strict adherence to the Sass specification and its ability to handle large codebases efficiently.
  • LibSass: LibSass is another popular implementation of Sass that was introduced in 2012. It is written in C/C++ and provides a C API, making it suitable for embedding in other programming languages. LibSass is known for its speed and is widely used in various projects and frameworks.
  • SassMeister: SassMeister is an online playground for Sass, allowing developers to write and test Sass code in real-time. It provides a user-friendly interface, syntax highlighting, and instant compilation. SassMeister is a valuable tool for experimenting with Sass features and quickly prototyping stylesheets.
  • Koala: Koala is a cross-platform GUI application that compiles Sass, Less, and CoffeeScript. It provides a simple and intuitive interface for configuring compilation options and automatically compiling code as it changes. Koala supports preprocessing multiple files and directories simultaneously, making it a handy tool for web development projects.
  • CodeKit: CodeKit is a popular frontend development tool for macOS that includes support for Sass compilation. It offers a range of features such as live browser reload, image optimization, JavaScript concatenation, and more. CodeKit’s seamless integration with Sass makes it a favorite among web developers.
  • Prepros: Prepros is a powerful development tool that supports compiling Sass, Less, Stylus, and other preprocessors. It offers a live preview of changes, automatic browser refreshing, and advanced preprocessing options. Prepros simplifies the development workflow and helps optimize the performance of web projects.
  • Compass: Compass is a Sass framework that provides a library of reusable styles, mixins, and utilities. It enhances the power of Sass by offering additional features like CSS3 mixins, sprite generation, and cross-browser support. Compass has been widely adopted and is known for its extensive community support.
  • Bourbon: Bourbon is a lightweight Sass mixin library that provides a collection of commonly used CSS patterns. It aims to keep stylesheets clean and semantic while reducing code duplication. Bourbon is actively maintained and has a dedicated user base.

TOP 14 Tech facts and history of creation and versions about SASS Development

Facts and history
  • SASS (Syntactically Awesome Style Sheets) is a preprocessor scripting language that is compiled into CSS.
  • It was created in 2006 by Hampton Catlin and later maintained by Natalie Weizenbaum, with the goal of making CSS more efficient and powerful.
  • SASS introduced various innovative features like variables, nesting, mixins, and inheritance, which revolutionized the way CSS was written.
  • The first stable version, SASS 1.0, was released in November 2006.
  • In 2010, SASS 3.0 was introduced, adding support for SCSS (Sassy CSS) syntax, which closely resembled the regular CSS syntax.
  • SASS 3.2, released in 2012, brought the concept of placeholder selectors, allowing developers to define reusable style patterns.
  • One of the significant advancements in SASS came with version 3.3 in 2014, which introduced the @import rule for modularizing stylesheets.
  • SASS 3.4, released in 2015, added support for the @if and @each control directives, enhancing the conditional and looping capabilities.
  • Version 3.5, released in 2016, introduced the ability to use the & selector for nested classes, enabling more precise styling control.
  • SASS 3.6, released in 2017, added support for module system and JavaScript-like imports, allowing developers to organize their stylesheets more efficiently.
  • In 2018, SASS 3.7 brought significant improvements in performance and introduced the ability to use CSS custom properties.
  • SASS 3.8, released in 2019, introduced the @use rule, which replaced the @import rule and provided better modularity.
  • Version 3.9, released in 2020, added support for native CSS logical properties, making it easier to create responsive designs.
  • SASS continues to evolve, with the latest version being 3.10, which introduced various new features like the @forward rule for sharing styles across modules.
  • Today, SASS is widely adopted in the tech industry and is a popular choice for developers due to its powerful features and ability to streamline CSS development.

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