

About Optiblack LLC
Optiblack LLC is a company that specializes in providing tech and analytics services. We offer a range of solutions to help businesses meet their goals, including:
- Data Analytics: we can help you extract insights from your data to make informed decisions.
- Web Development: we can design and build custom websites for your business.
- Mobile App Development: we can create mobile apps for both iOS and Android platforms.
- AI and Machine Learning: we can leverage these technologies to automate tasks and improve efficiency.
Optiblack LLC has a team of experienced professionals who can help you with your project. They have a track record of success in delivering high-quality solutions to our clients.
About the Role
We are looking for a passionate and talented intern developer to join our growing team at Optiblack LLC. This is a fantastic opportunity to gain hands-on experience building and maintaining our React Native mobile application. You will work alongside experienced developers and contribute to a product used by millions of users.
Responsibilities:
- Develop new features and functionalities for our React Native mobile application.
- Collaborate with designers and backend developers to ensure a seamless user experience.
- Write clean, maintainable, and well-documented code.
- Fix bugs and identify areas for improvement in the existing codebase.
- Stay up-to-date with the latest trends and technologies in React Native development.
- Participate in code reviews and provide constructive feedback.
Qualifications:
- Strong understanding of React Native development concepts.
- Experience with JavaScript (ES6+) and related frameworks.
- Familiarity with React development principles is a plus.
- Experience with Git version control system.
- Excellent problem-solving and debugging skills.
- Ability to work independently and as part of a team.
- Strong communication and interpersonal skills.
- A passion for learning and staying updated with the latest technologies.
Bonus Points:
- Experience with building cross-platform mobile applications.
- Experience with UI/UX design principles.
- Experience with unit testing frameworks like Jest or Mocha.
- Experience working on Social Media Apps or having an interest in working on them.
** Internship Duration:** 3 Months
Location: Remote
To Apply:
Please submit your resume and a cover letter explaining your interest in the position and why you think you would be a good fit for our team

About Optiblack
About
Optiblack creates websites, mobile apps, SaaS and commerce solutions for ambitious organisations investing in growth and digital transformation. We do that by finding the sweet-spot between business need and customer demand, fusing insight, creativity and technology to build products that create value.
In 2022 the company has grown 30X and team has grown to 7+ members
Candid answers by the company
Optiblack is a SaaS Development firm that scales and optimizes the product development for SaaS Companies. We are experts in designing, building and optimising digital products.
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Core responsibilities
• Collaborate with product teams to more accurately define new features
• Collaborate with UX in the building of a design system/component library
• Ensure high performance of all systems developed
• Aware of the relationship between development and business with a strong sense of ownership
• Employ the latest techniques such as agile software development
• Good knowledge of highly scalable server-side development
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Javascript (Angular/React)
• Strong interpersonal, communication and analytical skills
• Should have the ability to express their design ideas and thoughts
Job Brief
• JavaScript and Typescript expertise with Angular Framework
. Must have Monorepo experience with Nx from initial setup to CI/CD and maintenance.
• Experience with libraries such as bootstrap, Ag-grid, formly, observables, and ngrx
• You enjoy working with new technologies, and are curious and energetic
• Experience working with REST APIs
• Good understanding about authentication and security
• Create and maintain various unit and integration tests
• You enjoy working in a creative and agile environment that moves fast
• Ability and interest in providing mentorship to junior members of the team
• Write high quality code and Conduct code reviews
• Being resourceful and detail-oriented, along with being an outside the box thinker!
• Experience being a great team player, who work collaborative, and brings a positive attitude
We are seeking a Frontend Engineer who can expand our product portfolio and make life easier for locals and local businesses. As part of this role, you will build experiences that help users engage and feel comfortable with the products and services we offer.
We need you to understand Angular, Vanilla JS, HTML and (S)CSS.
We need you to understand the philosophy of writing clean and modular code.
We need you to take your own stand and do what's right to find a solution.
"I'd rather listen to a possible solution rather than a 'don\'t know'" would be plausible to you.
Technologies mentioned above is what you can relate to while applying but that's just the tip of the iceberg.
If you get a score of 10 below,
We need you
You need at least 5 points to proceed to next round.
Answer the following questions by attaching a document link with the note:
-
Why choose ngRx over shared angular services? 1 point
-
How are fork join and merge map different? 1 point
-
How do we wrap html elements in our custom component? 2 points
Ex:
This is not a paragraph element
- How will you handle an error produced by RxJS operator's inner observables without failing any other observables that are yet to emit values to its subscriber, so that all the inner observables including errored ones can be piped to another RxJS operator such as fork join, concatMap etc to be handled smoothly for further operations?
Easiest thing would be to generate a pseudo code.
With above question solve this problem:
[Observables....] -> Emit values simultaneously from the array of observables at once (perform a task when an observable finishes) -> toArray -> [emitted values...] -> process each emitted value one by one -> toArray
This will give you 4 points
- How does javascript achieve its asynchronous nature being single threaded? 2 points

Responsibilities :
- Developing new user-facing features using React.js and Next Js
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high-quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills :
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with newer specifications of EcmaScript
- Working Experience in SASS CSS3
- Working Experience in HTML5
- Working Experience in Responsive UI Conversions
- Working Experience in Pixels to Pixels conversion
- Familiarity with RESTful APIs
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization


• Strong command of ReactJS
• Strong command of modern JavaScript (examples: arrow functions, async/await,
destructuring, rest & spread, etc.)
• Strong command of modern CSS and HTML (examples: flexbox, grid, media queries, etc.)
• Strong command of modern JavaScript tooling (examples: webpack, babel, ESLint, etc.)
• Hands-on experience with TypeScript on ReactJS projects is a bonus, but not required
• A good grip on Git

We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem-solving, sophisticated design and quality products is important.
Responsibilities
-
Developing new user-facing features using React.js
-
Building reusable components and front-end libraries for future use
-
Translating designs and wireframes into high-quality code
-
Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills
-
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
-
Thorough understanding of React.js and its core principles
-
Experience with popular React.js workflows (such as Flux or Redux)
-
Familiarity with newer specifications of EcmaScript
-
Experience with data structure libraries (e.g., Immutable.js)
-
Knowledge of isomorphic React is a plus
-
Familiarity with RESTful APIs
-
Knowledge of modern authorization mechanisms, such as JSON Web Token
-
Familiarity with modern front-end build pipelines and tools
-
Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
-
Ability to understand business requirements and translate them into technical requirements
-
A knack for benchmarking and optimization

Job Details:-
Designation - Front-end Developer
Location:- Mumbai
Minimum Experience Required:- 2-4 Years.
Package Offered:- Rs.4,00,000/- to 7,00,000 pa.
Must have experience in React.js
We are looking for a qualified Front-end developer to join our IT team. You will be responsible for building the ‘client-side’ of our web applications. You should be able to translate our company and customer needs into functional and appealing interactive applications.
Front-end Developer Job Description:-
Responsibilities
- Use markup languages like HTML, React.js to create user-friendly web pages
- Maintain and improve web apps
- Optimize applications for maximum speed
- Collaborate with back-end developers and web designers to improve usability
- Get feedback from, and build solutions for, users and customers
- Write functional requirement documents and guides
- Help back-end developers with coding and troubleshooting
- Stay up-to-date on emerging technologies
Required Experience and Knowledge
- Proven work experience as a Front-end developer and hands-on experience with markup languages
- Experience with React.js (Saga), JavaScript, CSS (less) and Ant Design
- Familiarity with browser testing and debugging.
- In-depth understanding of the entire web development process (design, development and deployment)
- Understanding of layout aesthetics and knowledge of SEO principles
- An ability to perform well in a fast-paced environment
- Excellent analytical and multitasking skills

Hello Connections,
Hiring #reactjsdeveloper Aggressively, people who can join us immediately!!
Company: Smart Software Solutions
Experience: 3+years in React Native/ React JS
Qualification: Graduate in Computer Science
Location: Nagpur only
Technology Stack:
Front-End (Mobile):-
React Native, Redux Toolkit, React-Navigation Fire-Base, Axios, Material UI and some UI Libraries
Front-end (Web):-
React JS, Redux, Material UI, StoryBook, Axios, Webhook etc.
Testing Frameworks:- Unit test, enzyme, jest
ORM Frameworks:- Entity Framework
Web-Scripting:-
HTML, CSS, XML, DTD, JavaScript, JQuery, Ajax, and BootStrap
Databases:- Oracle, My SQL, MongoDB
Experience with user-interface design
Experience with browser-based debugging and performance testing software
Interested candidates provide details below:-
Current Location:
Notice Period:
Current Salary:
Expected Salary:

6-9 years of relevant experience in building webapps at scale
You must have strong understanding of semantic HTML / HTML5, CSS / CSS3.
You must have a good understanding of MVC architecture.
Prior work experience in ReactJS is Must
You must have experience in setting up the full UI workflow layer right from Development, Testing, Building and Deployment.
Never give up attitude
Experience in frameworks like Bootstrap, Foundation and CSS pre-processors like SASS and LESS is desirable.
You should have exposure to page speed improvement techniques.
Exposure of building responsive websites at scale will be a plus.
Prior exposure to building React Native components for Hybrid mobile apps will be a plus
Prior work experience in Angular, Backbone along with ReactJs is desirable.
Good understanding of webpack and redux

What You Will Be Doing:
- Create highly responsive B2C web-app using a wide range of open source frontend and backend technology.
- Create single page applications using wide range of javascript & cutting edge libraries/frameworks.
- Responsible for the full lifecycle of a project, including development, unit testing, system testing and change management.
- Research technical issues and provides recommendations to enhance JavaScript products.
- Working with multiple projects.
What we are looking for:
- Bachelor’s degree in Computer Science or equivalent preferably from IIT,NIT & other premier institutes.
- Rockstar JavaScript developer, who appreciates the intricacies of JS as well as passionate to follow new trends in JS.
- Experience with product companies.
- 4-9 yrs of software development on advanced JavaScript stack (Native JavaScript, Asynchronous Request Handling, AJAX, HTML5, CSS3, etc).
- In-depth knowledge in ReactJS & NodeJS
- Proficiency in any other modern web frameworks will be a plus.
- A solid knowledge of advanced data structures & algorithms.
- Proficient in Computer Science fundamentals & object-oriented design.
- Solid understanding of cross-browser compatibility issues and ways to tackle those.
- Must possess a track record of building Single Page responsive UI.
- Experience with Databases such as NoSQL and any RDBMS will be a plus.
- Experience with transport protocols such as TCP, HTTP & WebSocket.
- Expressing and appreciating design patterns is a real addition.
- Critical of coding practices and development methodologies

