
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.
Similar jobs
We are seeking an experienced Senior Shopify Developer to join our dynamic team. The ideal candidate will have a strong background in Shopify development, with a focus on creating custom solutions and apps to enhance e-commerce experiences. As a Senior Shopify Developer, you will be responsible for leading projects, collaborating with cross-functional teams, and driving innovation in our e-commerce platform.
Key Responsibilities:
- Design, develop, and maintain Shopify-based websites, ensuring high performance, responsiveness, and scalability.
- Lead the development of custom Shopify themes, apps, and integrations to meet business requirements.
- Collaborate with designers and stakeholders to translate business goals into technical solutions.
- Optimize website performance and user experience through continuous testing and refinement.
- Stay updated on the latest Shopify trends, tools, and best practices to incorporate into projects.
- Provide technical guidance and mentorship to junior developers, fostering their growth and development.
- Troubleshoot and resolve issues related to Shopify configuration, functionality, and third-party integrations.
Requirements:
- Minimum of 3 years of experience in Shopify development, with a strong portfolio showcasing custom Shopify themes and apps.
- Expertise in Shopify Liquid programming language and Shopify APIs.
- Proficiency in front-end technologies such as HTML, CSS, JavaScript, and React.js.
- Experience with version control systems such as Git.
- Strong understanding of e-commerce best practices and principles.
- Excellent problem-solving skills and attention to detail.
- Ability to work collaboratively in a fast-paced environment and manage multiple projects simultaneously.
- Strong communication skills, with the ability to effectively communicate technical concepts to non-technical stakeholders.
-
Use markup languages like HTML to create user-friendly web pages
-
Maintain and improve the website
-
Optimize applications for maximum speed
-
Design mobile-based features
-
Collaborate with back-end developers and web designers to improve the usability
-
Get feedback from, and build solutions for, users and customers
-
Write functional requirement documents and guides
-
Create quality mockups and prototypes
-
Help back-end developers with coding and troubleshooting
-
Ensure high-quality graphic standards and brand consistency
-
Stay up-to-date on emerging technologies
-
Proven at least 2 to 3 years of work experience as a Front-end developer
-
Hands-on experience with markup languages
-
Experience with JavaScript,Next.Js and ThreeJS is a must
-
Familiarity with browser testing and debugging
-
In-depth understanding of the entire web development process (design, development and deployment)
-
Excellent analytical and multitasking skills
-
Engineering graduates are preferred.

Integrate and extend Python REST APIs and create visually stunning UI experiences for analysts and
users.
Create flexible dashboards and reports (using plotly, d3, etc) and leverage open source technology to
create various components.
Create a flexible UI for data analytics and big data usecases which can be used by Large Tier banks as
well as smallscale agile startups
Write unit tests and functional tests for the component using tools like Jasmine, Karma, Cypress, etc.
Follow software development practices with continuous testing, development and integration (CD/CI)
Write and maintain technical design documents and new-feature documents
Collaborate closely with developers, engineers, testers, and product managers
Participate in peer-based code reviews and design reviews
Follow agile methodology and encourage collaboration with tools such as GIT, Confluence and Slack
applications
NowPurchase is transforming the 140B$ Metal Manufacturing industry. The metal industry forms the backbone of the economy and the fundamental block of the physical world - be it transportation, construction and every machinery. NowPurchase is building a rich, digital marketplace where Metal Manufacturers can procure high quality raw materials in a trusted manner. At the same time we are building the OS (Operating System) that will supercharge their productivity and processes to ultimately make procurement autonomous. Now Purchase raises
USD 2.4 million in Nov 2021, led by Orios Venture Partners, InfoEdge Ventures.
The B2B manufacturing industry has a lack of digitisation globally. NowPurchase envisions being the operating system for metal manufacturers, starting off with foundries. The end goal is to be able to automate procurement by creating & connecting the different systems both on the software and hardware end (ex: furnaces, spectrometers).
Website: https://nowpurchase.com/" target="_blank">https://nowpurchase.
LinkedIn: https://www.linkedin.com/company/nowpurchase/" target="_blank">https://www.
About the role:
We are looking to add an immensely talented Lead Front End Engineer that will help us invent, design, refine and deliver products that will meet our vision. Expect to build a lot of web interfaces and dashboards both for the browser as well as native IoT-enabled terminals that will be placed at the manufacturers' premises. You need to lead the front end team to make sure they are delivering high quality code and are constantly inspired to experiment with tools to push
out MVPs.
Job Role:
● You’ll be working directly with the lead and the product team to make decisions about your code and future of the product.
● Working on modular code installing over web, mobile and native IoT enabled terminals that leverage REST-based services and real time sockets.. This would include visual dashboards and minimising the time that are critical for the manufacturing process.
● Have a strong emphasis on shipping features quickly without sacrificing code quality. Be ready to build a lot of MVPs that will go through iteration or be completely scrapped depending on the outcome at the customer end.
● Lead your own Agile projects and lead the team from software design to implementation and deployment. Maintain sprints, delivery timelines and contribute to better managing the engineering team.
● Transform UI designs and mockups into pages and flows using CSS3 and JavaScript frameworks. Be ready to do the mockups yourself sometimes.
● Build a culture of simplicity and pragmatism, which is reflected in your elegant code that other developers emulate and you ensure through thorough code reviews and processes.
● Have an exceptional understanding of asynchronous request handling, partial page updates, and service workers and command over the internals of JavaScript, React and Redux.
● Continuously evaluate existing engineering processes and recommend improvements.
Required Skills and qualification:
● 4+ years’ experience developing rich UI/Front-end for user-facing web applications.
● Strong experience with React or similar frameworks, TypeScript, SSR (Server Side Rendering), SPA (Single Page Application), PWA (Progressive Web application), OOP (Object Oriented Programming), Reactive programming, and Unit tests.
● Demonstrated ability to function as a project leader as well as an individual contributor.
● Excellent communication and facilitation skills.
Location: WFO in Kolkata, West Bengal (Hybrid)
Benefits:
● ESOPs: 10% of NowPurchase is dedicated to current & future team members. Your package would entail some ESOPs so that you own a part of the company and grow along with it.
● Medical Insurance: Benefits of group insurance of 3 lakhs for family including parents, spouse, children
● Complete Relocation Expenses: We are building a unicorn out of the city of Joy (Kolkata). We will pay for everything you spend to relocate here.
2. Working on live projects depending upon their skill sets
3. Building front end applications through appealing visual design components using ReactJS
We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.
Responsibilities
Build pixel-perfect, buttery smooth UIs across both mobile platforms.
Leverage native APIs for deep integrations with both platforms.
Diagnose and fix bugs and performance bottlenecks for performance that feels native.
Reach out to the open-source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
Maintain code and write automated tests to ensure the product is of the highest quality.
Transition existing React web apps to React Native.
Skills
Firm grasp of the JavaScript, TypeScript, ClojureScript language and its nuances, including ES6+ syntax Knowledge of functional or object-oriented programming
Ability to write well-documented, clean Javascript code
Rock-solid at working with third-party dependencies and debugging dependency conflicts
Familiarity with native build tools, like XCode, Gradle Android Studio, IntelliJ
Understanding of REST APIs, the document request model, and offline storage
Experience with automated testing suites, like Jest or Mocha
- 2-7 years of experience in Mobile application development domain
- A minimum 2 years of React native production level dev experience
- At least 2 React native published apps
- A firm grasp of the JavaScript language and its nuances, including ES6+ syntax
- An expert level knowledge of React Native, Redux, Rx & related stack
- An excellent knowledge of Tools
- Some native Android & iOS development experience (preferable)
What is the role?
Xoxoday is looking for a highly skilled/ Experienced Candidates in Frontend Programming & who is comfortable in dealing with Backend tools.
Key Responsibilities
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly-responsive user interface components using React concepts.
- Writing application interface codes using JavaScript following ReactJS workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
What are we looking for?
An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.
- 6 to 9 years of strong design and development experience in building massively large-scale distributed internet systems and products.
- Previous experience working as a React.js Developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Strong experience using a client side MVC framework such as NodeJS, ReactJS, Redux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Experience in responsive design, cross browser compatibility and website performance.
- Knowledge of frontend CSS frameworks like Bootstrap, Material UI and preprocessors like SASS and LESS.
- Experience with handling Services, RESTful, APIs (NodeJS preferably).
Whom will you work with?
You will be working with top-quality engineers who have built one of the best employee engagement SaaS platforms. You will be reporting to Engineering Head and working closely with the Architect and other leads.
What can you look for?
A wholesome opportunity in a fast-paced environment will enable you to juggle between concepts yet maintain the quality of content, interact, share your ideas, and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Xoxoday.
We are
A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, Mumbai, SF, Dubai, Singapore, and Dublin. We have three products in our portfolio: Plum, Empuls, and Compass. Xoxoday works with over 1000 global clients. We help our clients engage and motivate their employees, sales teams, channel partners, or consumers for better business results.
Way forward
We look forward to connecting with you. As you may take time to review this opportunity, we will wait for a reasonable time of around 3-5 days before we screen the collected applications and start lining up job discussions with the hiring manager. However, we assure you that we will attempt to maintain a reasonable time window for successfully closing this requirement. The candidates will be kept informed and updated on the feedback and application status.

We are looking for a Front end web developer passionate towards building high performance web
applications which can scale for B2C businesses. We are looking for self-driven individuals who love to
find innovative solutions and can perform under pressure. An eye for details and being proud of produced
code are the must have attributes for this job.
Responsibilities.
● You will be responsible for converting Product team requirements to modular, testable and
efficient code.
● You will be required to design and implement data storage solutions (Databases, caching layers
etc).
● You will also be required to cater to NFRs related to security and performance.
Skills
● 3+ years experience in JavaScript and clarity of core Javascript language basics.
● Excellence in React JS/AngularJS.
● Excellent in HTML5 and CSS3.
● Hands on experience of UI Libraries like jQuery.
● Hands on experience with code versioning systems like Git, SVN.
● Hands on Excellent debugging and problem solving skills.
● Experience with Responsive/Mobile Design.
● This person is excited about creating pixel perfect, reusable, extensible, flexible, high-performing
front-end experiences that integrate seamlessly with back-end code.
● The ability to adapt to the ever-changing technology landscape.
● You are excited about keeping up-to-date by experimenting with new technologies and
frameworks.
Years of Exp: 4-8 yrs
Qualification:
● Engineering graduates from Tier I or II institutes.
● B.E/ B.Tech/ ME/ M.Tech





