Remote UI/UX Designer for a US startup

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)

Key Responsibilities:

Purchase Order Processing:

Prepare and review purchase orders from various departments or individuals within the organization.

Verify the accuracy and completeness of purchase orders, ensuring they are properly authorized and comply with company policies.

Enter purchase order details into the accounting system (Tally Prime)

Invoice Verification and Processing:

Gather invoices and match them with corresponding purchase orders and delivery receipts.

Verify the accuracy of invoices, including quantities, prices, and applicable taxes.

Resolve discrepancies or issues with invoices by communicating with vendors, procurement, and other internal stakeholders.

Coordinate with vendors to resolve any payment-related inquiries or issues.

Engage in Warehousing activities related to invoices and inventory.

Vendor Relationship Management:

Develop and maintain positive relationships with vendors, responding to inquiries and resolving any issues promptly.

Ensure vendor accounts are accurately maintained in the accounting system, including contact information and payment terms.

Communicate payment schedules to vendors and provide remittance advice as required.

Reporting and Reconciliation:

Prepare periodic reports related to accounts payable, such as the outstanding creditor's reports, vendor ageing payables, and vendor statements.

Reconcile vendor statements with accounts payable records, investigating and resolving any discrepancies.

About Us 

One of India's leading Renewable Energy Consultants, working with large commercial and Industrial clients and helping them choose the right Renewable Energy solution for them.

Job Profile Manager / Senior Manager– Strategy & Business Development, Renewable Energy

Qualification 

• MBA –from a reputed B school or comparable qualification with 3-8 years of experience either in B2B sales or Renewable Energy Consulting 

Office Location: Noida

Who we’re looking for

• We’re looking for a unicorn – the best of the best.

• Someone who lives, breathes, eats, sleeps, and dreams of Renewable Energy and consultative selling process.

• Someone who has a fire in their belly for business development and can expand a region single-handedly

• Someone who will be at the front of the company and can drive sustainable financial growth by boosting sales and forging strong relationships with clients

• Someone who is charged up to contribute and take ownership

• Someone who can crush their targets - Deliver and exceed their own goals

Responsibilities Strategize in Business Models and Business Plans

• Work with higher management in formulating business strategies

• Research for new markets and know-how of the renewable industry

• Assist and strategize in new products & services

• Making business plans and financial models

Generating Enquiries and Sales Meetings

• Prepare for meetings/calls via structured research about the target client 

• Having effective sales meetings/calls in order to:

• Understand the renewable energy requirement of the client

• Position the company as their preferred Renewable Energy advisor and the best choice for the client

Sales Proposals/Transaction Management

• Create presentations based on the client’s requirements

• Coordinate with the Business Partners to generate proposals

Deal Closure/Sales Conversion

• Negotiate win-win deals

• Maintain profitability index as per management guidelines

Team Management

• Develop entry-level staff into valuable salespeople

• Accountable for achieving its own as well as its team sales target

Candidate Profile 

• Should have good business analytical skills

• Proficient in financial model skills

• Should have excellent skills in office tools like Excel, PowerPoint, etc.

• Should have excellent Communication Skills and be a team player

• Should be a go-getter, focused, ambitious, sales expert and driven to succeed, result orientated, hungry for growth

Perks & Benefits 

• An absolute action-packed, fun, and demanding workplace lets us thrive in a team-based environment with passion, fun, pride, and teamwork as our core values.

• Other than fixed compensation, we offer attractive (equivalent to 80% of the salary) quarterly performance incentives, team outings, and an international trip for the star performers

At LambdaTest, We help developers and testers fix their applications across a combination of 2000+ browsers and Operating Systems by providing a complete cross-browser ecosystem on the cloud. As Backend Developer You will work with other Developers throughout the Software Development Life Cycle.

You will join a dynamic and fast-paced environment and work with cross-functional teams to design, build and roll out product that deliver the company’s vision and strategy.

What’s the Opportunity?

• As a hands-on engineering professional, you'll stay on top of the details and will be more focused on building a better, more efficient program and creating the best user experience and 
• Support and collaborate with our service engineers in getting to the bottom of issues and come up with robust solutions.
• Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration.
• Participate in a culture of code reviews, writing tech specs, and collaborating closely with other people.
• Design distributed systems using micro services architecture would be plus.
• Implementing high performance and non-blocking systems to serve traffic heavy SaaS based product.

Requirements and qualifications-

• Bachelor's degree in Computer Science or equivalent combination of technical education with 2-4 Years of work experience.
• Experience with one or more general purpose programming languages, including but not limited to:Python, Golang, NodeJs 
• A solid understanding of software construction
• The ability to naturally follow good development practices like test automation, CI/CD, source version control, etc.

Job Location: Bangalore, Pune, Chennai, Mohali, Gurugram, Panchkula, or Dehradun

The candidate must be available to join within two weeks.

Job Description:

• 5 to 8 years of experience in Developing APIs and RESTful services using Node JS.
• Experience with AWS API Gateway
• Produce high-quality code and experience with security implementations Identifying application security risks and implementing security patches procedures.
• Implement and Improve application logging services
• Work with the product and design teams to understand end-user requirements, formulate definitions of done, and translate that into an effective technical solution.
• Work with the QA Team to develop testing protocols to identify and correct challenges.
• Must have good analytical, debugging, and problem-solving skills.
• Good communication skills.

• 5to 7 years plus experience having implemented Adobe Experience Manager based Solution in a large scale environment
• Deep understanding of Adobe AEM, Apache Sling, Servlets
• Experience developing applications, templates, and components for the Adobe AEM product (WCM, DAM, CRX)
• Experience customizing workflows and integration with other enterprise systems
• Demonstrated experience with Java, JavaScript, HTML5, CSS3, and related technologies
• Expertise in Java, web development experience, and other Content management system experience.
• Great understanding of Web technologies like XML, HTML, Client Server-side scripting languages such as JavaScript, JSP, and web services development using RESTful implementations.
• Should have exposure on the continuous integration build tools and code quality tools

Responsibilities

• Develop digital consumer experiences based on a foundation of the Adobe AEM product suite, including AEM, CRX, Target, and DAM
• Translate marketing and website needs into AEM specific recommendations and solutions
• Leverage AEM, other state-of-the-art technologies, and integration patterns to solve cross-departmental challenges
• Design and improve internal development methodologies around Adobe AEM solution
• Develop front end and back end components using AEM

Responsibilities:

• Resolve complex technical issues and make design decisions to meet the critical requirements of scalable, highly available, multi-tenant enablement of services in the cloud.
• Independently investigate, present options, review and implement completely new functionality OR re-architect an existing solution to meet growing needs
• You will work closely with other development teams, product management, UX, and QA to define and implement a new product offering while ensuring continued functionality.
• Work with various external (application) teams to integrate with the product and help guide the integration.
• You will implement solutions that include database schema, business logic, and some presentation layer work.
• You will use existing methods and best practices in the software industry to create features and platforms with the highest levels of security, reliability, efficiency, and scalability.
• Experience mentoring senior developers.

Requirements:

• 8+ years of experience in software development experience with a proven track record of making technical decisions
• 8+ years of experience in coding in more than one programming language, e.g. Python, GoLang, node.js, etc
• Intimate working understanding of modern web applications from the database to browser
• Intimate understanding of MongoDB and extensive experience with database-driven applications
• Great problem-solving skills and ability to abstract functional requirements
• Excellent communicator in both technical and non-technical contexts
• Experience designing and improving complex software applications
• Experience coaching and mentoring developers at various levels of experience
• You have a sound understanding of programming fundamentals & their application to highly scalable web-based systems.
• You have successfully led a small agile team.

•   Experience in designing and developing interactive, user-friendly applications.
• Proven work experience or Knowledge in Java technologies.
• Mandatory Skills: Core Java, Jsp & servlet.
• Desired Skills: Spring Boot 
• Execute full software development life cycle (SDLC)
• Develop flowcharts, layouts and documentation to identify requirements and solutions
• Integrate software components into a fully functional software system
• Develop software verification plans and quality assurance procedures
• Document and maintain software functionality
• Troubleshoot, debug and upgrade existing systems
• Deploy programs and evaluate user feedback
• Comply with project plans and industry standards. Ensure software is updated with latest features