
- Proven record of designing and delivering complex networking products from inception to production delivery.
- Previous experience developing quality software for commercial products.
- Experience with communication systems involving wireless, radio, security and mesh networking technologies is a plus.
- Ability to work in a small team on fast paced projects that have tight deadlines
- Experience using Agile/Scrum methodologies.
- Seeking 10+ years software development experience
- Experience with Embedded real-time systems
- Must be an excellent SW developer. We expect experience developing software C/C++ in Linux. Python and other scripting languages is a plus.
- Target hardware includes Embedded CPU, DSP, and ARM environments
- Experience with Linux development infrastructure, tool chain and build environment.
- Experience developing both Linux device drivers and application software; installing Linux software and configuring embedded Linux systems
- Experience with OSI networking protocols and applications
- Experience and knowledge of Board Support package (BSP) development including board bring up, tool chain creation, and firmware/diagnostics support
- Experience with system development tools, including Source-Level Debuggers, Logic Analyzers, Oscilloscopes, Code Analysis tools, etc.

About Emproto Technologies Private Limited
About
Emproto is a young organization started by Tech enthusiasts who have worked as Product Managers and architects for organizations like Flipkart, Axis Bank, Synchronoss Technologies. Emproto is a Full stack mobile and web app development partner for organizations like Innoviti, Talisma, Savaari.com among others. It is a rapidly growing organization with about 60 problem solvers working on cutting edge technology stack.
https://emproto.com/our-work.php
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Job Opening: FreeSWITCH Developer
Location: Ecospace Business Park, Rajarhat, Newtown, Kolkata
Employment Type: Full-Time, Permanent
Shift: Day Shift
Experience: Minimum 4+ years in FreeSWITCH/VoIP Development
Responsibilities:
- Design, develop, deploy, troubleshoot, and maintain tools and services supporting our cloud telephony network.
- Customize FreeSWITCH for large-scale audio/video conferencing (1000–1500 concurrent calls).
- Expertise in SIP, RTP, RTCP, TURN, STUN, NAT, TLS.
- Hands-on experience with RTP Proxy and routed audio conferences.
- Understanding of SDP Protocol offer/answer mechanism.
- Work with load testing tools for FreeSWITCH audio conferences.
- Deploy and manage multiple FreeSWITCH instances using load balancers.
- Debug issues using packet captures (Wireshark/Ngrep).
- Collaborate with mobile/API teams for integration and support.
- Knowledge of codecs (PCMU, PCMA, G729, Opus) and open-source telephony technologies (FreeSWITCH, WebRTC).
- Familiarity with SIP servers (SER/OpenSER), proxy servers, SBC, SIPX is a plus.
Qualifications:
- Bachelor’s degree in Engineering (B.Tech/MCA).
- 4+ years of hands-on experience in FreeSWITCH development or related VoIP technologies.
- Strong knowledge of Linux environments and command-line tools.
- Basic to intermediate SQL knowledge.
- Proficiency in scripting (Bash, Python, Perl) for automation.
- Strong understanding of VoIP protocols (SIP, RTP), networking principles (TCP/IP, DNS, DHCP, routing protocols).
- Excellent troubleshooting skills with ability to resolve complex technical issues.
- Strong problem-solving, communication, and collaboration skills.
Industry Preference:
- Travel (Preferred)
- Any Industry (Required)
Responsibilities :
● Designing and developing robust and scalable server-side applications using Python, Flask, Django, or other relevant frameworks and technologies.
● Collaborating with other developers, data scientists, and data engineers to design and implement RESTful APIs, web services, and microservices architectures.
● Writing clean, maintainable, and efficient code, and reviewing the code of other team members to ensure consistency and adherence to best practices.
● Participating in code reviews, testing, debugging, and troubleshooting to ensure the quality and reliability of applications.
● Optimizing applications for performance, scalability, and security, and monitoring the production environment to ensure uptime and availability. ● Staying up-to-date with emerging trends and technologies in web development, and evaluating and recommending new tools and frameworks as needed.
● Mentoring and coaching junior developers to ensure they grow and develop their skills and knowledge in line with the needs of the team and the organization.
● Communicating and collaborating effectively with other stakeholders, including product owners, project managers, and other development teams, to ensure projects are delivered on time and to specification.
You are a perfect match, if you have these qualification :
● Strong experience in Python and server-side development frameworks such as Flask or Django.
● Experience in building RESTful APIs, web services, and microservices architectures.
● Experience in using database technologies such as MySQL, PostgreSQL, or MongoDB.
● Familiarity with cloud-based platforms such as AWS, Azure, or Google Cloud Platform.
● Knowledge of software development best practices such as Agile methodologies, Test-Driven Development (TDD), and Continuous Integration/Continuous Deployment (CI/CD).
● Excellent problem-solving and debugging skills, and the ability to work independently as well as part of a team.
● Strong communication and collaboration skills, and the ability to work effectively with other stakeholders in a fast-paced environment
Skillset:
Python (Mandatory)
C,C++ (Good to have)
Thanks
Ravindra
• Bachelor’s degree in Computer Science or IT related field
• 4-6 years of experience working across different product domains in a product development/engineering role
• Good communication skills necessary to manage business requests and work with different teams across differ-
ent geographies and time-zones; experience working with remote and distributed teams will be an added ad-
vantage
• Hands-on working knowledge and experience is requiredin:
a. JavaScript, Typescript, NodeJS (Express, NestJs, etc.)
b. Experience working in GCP or AWS or Azure
c. Experience working in Containers & Unix Platforms
d. Relational Databases (PostgreSQL, MySQL, SQL, etc.)
e. Agile Methodologies (Scrum, TDD, BDD, etc.)
f. Understanding of Microservices Architecture, Domain Driver Design, Test Driven Development and
Secure Design patterns and architecture is a must
g. Data Structures and Algorithms using Javascript, Typescriptand/or other Programing Languages
h. Strong organizational skills
i. Agile Methodologies (Scrum, TDD, BDD, etc.)
• Experience with several of the following tools/technologies is desirable:
a. GIT (Bit Bucket, Gitlab, etc.), Jira, Gradle, Maven, Jenkins, SharePoint, Eclipse/IntelliJ.
b. Design Patterns and implementing the Design Patterns
c. Development of Complex Application and System Architectures
d. NoSQL Databases (Redis, Mongo, etc.)
e. Full stack development
f. Experience working with CI/CD pipelines with for example GitHub Actions.
• Knowledge of the following technologies is a plus:
a. Other Programming Languages (Java, Python, etc.)
b. Continuous Integration and Continuous Delivery Tools like Jenkins, Git, etc.
c. Secure Development based on OWASP standards
Job Description
- Developing and supporting ASP.NET, C#, web applications, using MVC 5 and .NET Core
- Developing and supporting SQL database structures, using Entity Framework code first
- Utilizing frameworks such as Bootstrap and CSS for responsive web design
- Follow established development standards and processes which help to consistently deliver high quality applications.
- Continue development of skills and expertise on current and emerging technologies.
Requirements
- 3 to 9 years of experience developing C# .NET applications
- Experience with .NET Core 2.1 and or 4.5, MVC frameworks, Web API, Entity Framework 6 or above
- Experience with SOLID design principles
- Excellent communication and documentation skills is a must
- Experience with agile development process including scrums, Kanban boards, sprint reviews, and backlog grooming sessions
- Experience with front end technologies such as Bootstrap, CSS, JavaScript, and other front-end libraries such as VueJS, React, or Angular
- Experience with Microsoft Azure, including the Portal and DevOps
Talk about the role we are offering for Mulesoft and how we are considering trainable resources who are keen to learn and work on new technologies
Our Requirements:
We are looking for 1-8 years of experience in technical skills like Java, python etc and who will be willing to learn and move to mulesoft and related technologies
Ability to work in a fast paced, demanding, and rapidly changing environment
Preferred:
Basic knowledge about mulesoft
Responsibilities
Assist in translating business objectives into technical solutions through the use of MuleSoft Anypoint Platform
Coding, testing, debugging, implementing and documenting MuleSoft based flows and integrations
Apply integration design patterns such as message routing, content enrichment, batch processing, error handling and reconciliation mechanisms to deliver required functionality
WHAT WE ARE OFFERING
Learning and Certification
Best in Industry Salary
Health & Wellness Benefits
Employee Rewards Program
Retirement & Savings
Flexible Schedules
Maternity & Paternity Leave







