

About Crescentek
About
We are the leading online marketing firm that enables you to get huge return on your investment. Our main objective is to provide unique website design to our valuable customers that will definitely make their business extraordinary from the entire crowd. Wherever you may be located, we will create website for you or help you to redesign your present website so that it looks more professional.
Our Mission Value
Our Mission is built on underpinnings that spell transparency and dedication. While we firmly believe that dedication is not what you expect of us, but what we can give to you, we do it in the most visible way - not behind your back. All our strategies and techniques that would be employed for raising your ranking will never be shrouded in any deceptive veil but would be conducted in an honest straightforward fashion. That's precisely why most our clients have stopped being clients; they have become friends. Even though we have not given birth of their Brands but we have reared them to maturity
Our Support
We are available 24*7 for our clients. We work with you so that your website explains about your products and services and improve marketing strategy. We are always there to offer right solution for all our client's requirements
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Role & Responsibilities
- work with peers in Product, QA, and other Engineering departments;
- coach and mentor team members;
- cautiously drive adoption of new technologies and processes;
- preserve our engineering values of quality, scalability, and maintainability;
- “see around corners” — identify blind spots and prioritize work across teams;
- work with international teams to ensure successful product development and delivery; and
- own the overall architecture and systems engineering for your products.
Ideal Candidate
- exceptional communication and organizational skills;
- experience recruiting for and building software engineering teams;
- the ability to inspire and motivate team members;
- a strong technical background in software engineering and architecture, and experience with modern programming languages and frameworks;
- 6+ years of software development experience; and
- 4+ years of experience managing software teams (as a Team Lead or a Manager) or similar experience as an individual contributor.
We’re building a powerful, AI-driven communication platform — a next-generation alternative to RingCentral or 8x8 — powered by OpenAI, LangChain, and SIP/WebRTC. We're looking for a Full-Stack Software Developer who’s passionate about building real-time, AI-enabled voice infrastructure and who’s excited to work in a fast-moving, founder-led environment.
This is an opportunity to build from scratch, take ownership of core systems, and innovate on the edge of VoIP + AI.
What You’ll Do
- Design and build AI-driven voice and messaging features (e.g. smart IVRs, call transcription, virtual agents)
- Develop backend services using Python, Node.js, or Golang
- Integrate OpenAI, Whisper, and LangChain with real-time VoIP systems like Twilio, SIP, or WebRTC
- Create scalable APIs, handle call logic, and build AI pipelines
- Collaborate with the founder and early team on product strategy and infrastructure
- Participate in occasional in-person strategy meetings (Delhi, Bangalore, or nearby)
Must-Have Skills
- Strong programming experience in Python, Node.js, or Go
- Hands-on experience with VoIP/SIP, WebRTC, or tools like Twilio, Asterisk, Plivo
- Experience integrating with LLM APIs, OpenAI, or speech-to-text models
- Solid understanding of backend design, Docker, Redis, PostgreSQL
- Ability to work independently and deliver production-grade code
Nice to Have
- Familiarity with LangChain or agent-based AI systems
- Knowledge of call routing logic, STUN/TURN, or media servers (e.g. FreeSWITCH)
- Interest in building scalable cloud-first SaaS products
Work Setup
- 🏠 Remote work (India-based, must be reachable for meetings)
- 🕐 Full-time role
- 💼 Direct collaboration with founder (technical)
- 🧘♂️ Flexible hours, strong ownership culture
Key Responsibilities:
- Develop and maintain both front-end and back-end components of web applications.
- Collaborate with product managers, designers, and other developers to build user-friendly features.
- Write clean, maintainable, and efficient code that adheres to coding standards and best practices.
- Build reusable code and libraries for future use.
- Optimize applications for maximum speed and scalability.
- Implement responsive design to ensure consistent user experience across all devices.
- Work with databases (SQL/NoSQL) and integrate with third-party services and APIs.
- Troubleshoot, debug, and optimize application performance.
- Participate in code reviews, ensuring code quality and consistency across the team.
- Stay updated on the latest industry trends and best practices in full-stack development.
- Contribute to an agile development process, attending sprints, standups, and retrospectives.
Required Skills and Qualifications:
- Proven experience as a Full Stack Developer or similar role.
- Proficiency in front-end technologies such as HTML, CSS, JavaScript, and modern frameworks (React.js, Next.js, Angular, or Vue.js).
- Strong experience in back-end technologies such as Node.js, Python, Ruby, Java, or PHP.
- Familiarity with database technologies (e.g., MySQL, PostgreSQL, MongoDB).
- Experience with version control systems, particularly Git.
- Knowledge of RESTful API design and integration.
- Familiarity with cloud platforms like AWS, Azure, or Google Cloud is a plus.
- Experience in microservices based architecture is a plus.
- Strong problem-solving skills and attention to detail.
- Ability to work independently as well as part of a team.
- Excellent communication skills, both verbal and written.
- 4 to 7 years of experience (or equivalent understanding of software engineering)
- Strong in Javascript & Typescript + frameworks like React, Next.js, Angular, etc.
- Strong experience in architecting complex, distributed systems in public or private cloud
- Willingness and interest in learning new tech/processes (Python, Airflow, Postgres, etc.)
- Willingness to travel to offices in New York City, San Francisco, and Hyderabad
Overview: Looking for experienced Senior Developers to work on a cross-functional team to solve real-world problems for healthcare providers around United States of America.
They will be required to use their expertise to design, build, test, and improve the features that will enable our customers to effectively run their business and provide patient care. We are looking for ideal candidates who like solving tough problems, enjoys being part of a fun team, and are tenacious.
Requirements:
- Fluent English Required, and able to provide well-articulated and reasoned explanations for when and why to apply software design patterns.
- Experience of 3 to 5 years developing using MEAN Stack
- Strong development experience using Node.JS, Express, Angularjs and Mongodb
- Experience in UX, CSS, LESS/SASS, Git, Gulp
- Agile development background is required
- Test Driven Development experience
- Cloud deployment experience is preferred, working with Google, AWS, Jenkins, Docker

- Provides free and subscription-based website and email services hosted and operated at data centers in Mumbai and Hyderabad.
- Serve global audience and customers through sophisticated content delivery networks.
- Operate a service infrastructure using the latest technologies for web services and a very large storage infrastructure.
- Provides virtualized infrastructure, allows seamless migration and the addition of services for scalability.
- Pioneers and earliest adopters of public cloud and NoSQL big data store - since more than a decade.
- Provide innovative internet services with work on multiple technologies like php, java, nodejs, python and c++ to scale our services as per need.
- Has Internet infrastructure peering arrangements with all the major and minor ISPs and telecom service providers.
- Have mail traffic exchange agreements with major Internet services.
Job Details :
- This job position provides competitive professional opportunity both to experienced and aspiring engineers. The company's technology and operations groups are managed by senior professionals with deep subject matter expertise.
- The company believes in having an open work environment offering mentoring and learning opportunities with an informal and flexible work culture, which allows professionals to actively participate and contribute to the success of our services and business.
Role and Responsibilities :
- Creating RESTful services with Node.js
- Implement MVC architecture using MERN/MEAN
- Architect scalable web applications
- Be responsive to change requests and feature requests
- Write code that is cross-platform and cross-device compatible
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
Qualification and Experience : A graduate degree or senior diploma in engineering or technology with some or all of the following:
- Bachelor's degree in Computer Science, Information Technology, or a similar field with 3-5 years of experience.
- Previous experience working as a MERN/MEAN stack Developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience with browser-based debugging and performance testing software.
- Experience with Angular JS
- Excellent troubleshooting skills.
- Experience in socket.io and webrtc will be an added advantage.
All interested candidates please share your updated resume.
- Building REST APIs using Node.js, Express, and MongoDB
- Working on Flutter application development using various advanced strategies like state management, API integrations, and scalable databases
- Working with Socket.io library for Flutter and Node.js product development
- Learning and developing the cryptographic functions for product security
- Managing product workloads on public/private cloud - we are currently on AWS & also planning to be on GCP/Azure (our platform would also be available as on-premise deployment, you will handle these deployments)
- Develop API based architecture in order to ensure the business growth and integration-al capabilities of the product
- Work on using GIT and CI-CD for product version control and continuous delivery
What you will get:
- To be a part of the Core-Team 💪
- A Chunk of ESOPs 🚀
- Creating High Impact by Solving a Problem at Large (No one in the World has a similar product) 💥
- High Growth Work Environment ⚙️
What we are looking for:
- An 'Exceptional Executioner' -> Leader -> Create an Impact & Value 💰
- Ability to take Ownership of your work
- Past experience in leading a team
Requirements:
- Bachelor's degree or higher in Computer Science or in any related engineering discipline.
- (2-4) years of experience in building scalable web applications.
- Backend Maverick with proficiency in Java
- Experience in requirement analysis, failure analysis, API design, distributed
- Experience with React.js and modern JavaScript libraries and tooling.
- consistency
- Deep understanding of the "behind-the-scenes" of HTML rendering, CSS, and Javascript.
- Ability to troubleshoot complex systems problems, debug, and find root causes.
- Ability to effectively articulate and drive solutions to meet technical and business challenges
- Excellent verbal and written communication skills
Responsibilities:
- Make changes in the existing code base of talent marketplace and implement new features.
- Collaborate with stakeholders that are involved in product design (marketing specialist and product manager).
- Report the progress to other stakeholders.
- Do bug fixes and push the source codes to the live server.
- Be responsive to change requests and feature requests
- Create Unit and Integration tests to ensure the quality of code
Requirements:
- Experience in Node js , MongoDB and Angular.
- Experience in JavaScript development.
- Understanding in MEAN or MERN Stack.
- Experience in the use of project planning tools (JIRA, Version One, GitHub, etc.)
- Excellent written and verbal communication skills (English).
- Understanding of various technologies including applications and databases.
- Able to handle multiple projects and competing deadlines
- Good understanding of overall web design including basic usability, accessibility, industry standards, architecture, and navigation
- Able to handle multiple projects and competing deadlines
- Fluent knowledge of latest HTML/CSS standards and best practices
- Experience building Responsive websites for web, tablet and mobile devices
- You will ne Responsible for revamping of existing LMS Platform along with designing and developing new projects.
- Researching, designing, implementing and managing software programs
- Testing and evaluating new programs
- Identifying areas for modification in existing programs and subsequently developing these modifications
- Writing and implementing efficient code
- Determining operational practicality
- Developing quality assurance procedures
- Deploying software tools, processes and metrics
- Maintaining and upgrading existing systems
- Training users for new modules
- Hands on experience in LMS or CRM will be preferred
- Good knowledge on MySQL, ES6, Node.js, SaaS, AWS, Bootstrap and Css3









