

Fonada
https://fonada.comJobs at Fonada
About the Company
We are a fast-growing Communications Platform as a Service (CPaaS) company offering cutting-edge solutions in Messaging, Voice, Gen-AI powered Chatbots, and Voicebots. Our solutions are empowering over 100+ brands to automate customer interactions and enhance digital engagement across industri
We are currently seeking a Senior Golang Developer to join our team in Noida, India.
Responsibilities:
- Create and maintain microservices, primarily in Golang, taking increasing responsibility.
- Assist with design and build to solve bugs, improve performance, and add new features.
- Develop an understanding of end-to-end technical architecture and dependency systems. Apply that understanding in code.
- Write tests with high coverage including unit, contract, e2e, and integration.
- Version control code with git and build, test, and deploy using ci/cd pipelines.
- Build and test remotely on your machine and deploy to low-level environments.
- Participate in the review of team members code.
- Perform demos and join acceptance discussions with analysts, developers, and product owners.
- Assist in task planning and review as part of a sprint-based workflow.
- Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements.
KEY DELIVERABLES:
- First and foremost, you want to build products to solve real, pressing problems for your customers. You enjoy working in a team and have an interest in data science and how advanced algorithms may be deployed as product offerings.
- You are detail-oriented and enjoy writing and reviewing code to a high standard with tests to prove it.
- Demonstrable ability to write Python/Golang and SQL. You are happy to learn new programming languages and frameworks as necessary.
- You are interested in contemporary approaches to service design, including the use of containers and container orchestration technologies, streaming data platforms, APIs, and in-memory/NoSQL stores.
- You would be delivering solution/developing product using KAFKA/RabbitMQ Queue management software/framework.
- You would be working extensively in REDIS or any other cache management software/framework.
- You would be needing to know advance data structure and algorithms to build highly scalable and performance oriented product/solution.
- You are familiar with working in a DevOps-based software development workflow, including building, testing, and continuous integration/deployment. You are also happy to evolve along with the development process and contribute to its success.
- You can communicate with a range of stakeholders, including subject matter experts, data scientists, software engineers, and enterprise DevOps and security professionals.
- You are keen to engage with best practices for code review, version control, and change control, balancing the need for a quality codebase with the unique demands of scale-up stage software engineering.
- You have experience or are keen to engage with productionising machine learning technologies.
Required Qualifications & Skills:
- Bachelor's degree in Computer Science, Engineering, or a related field followed by 7+ years of experience in a modern development stack Golang, Kafka/RabbitMQ,Redis,REST API
- Experience in application design, software development, and testing in an Agile environment with relational and NoSQL databases, including PostgreSQL/MySQL, Couchbase, or Cassandra.
- In designing and developing REST APIs for high volume clients with continuous integration tools (Jenkins, Gitlab CI) with automated build and test frameworks a plus with container and container orchestration technologies, such as Docker and Kubernetes.
- Experience with Atlassian software development and collaboration tools (JIRA, Confluence, etc.).
Role Overview
We are looking for a hands-on Senior Telephony Engineer who actively writes production-grade code and has deep experience with Asterisk-based systems, Java backend development, and high-scale dialler platforms.
Key Responsibilities
This is NOT an architecture-only role we need someone who can:
- Write code
- Debug real-time call issues
- Build and optimize telephony flows end-to-end
- Key Responsibilities (Hands-on Coding Focus)
- Develop and maintain Asterisk dialplans, AGI scripts, and call flows
- Build Java-based backend services for telephony control and orchestration
- Implement and optimize predictive / preview / progressive diallers
- Integrate telephony stack with:
Kafka
RabbitMQ
- Write scalable code for call routing, retry logic, and queue handling
- Work directly on SIP signalling, RTP flows, and debugging call issues
- Handle real-time call events, CDR processing, and logging pipelines
- Optimize systems for high concurrency (thousands of parallel calls)
- Debug production issues like:
Call drops
Latency
One-way audio
SIP failures
Qualifications & Skills
- Bachelors degree in Computer Engineering; Masters is a plus.
- Telephony (Core Requirement)
- Strong hands-on experience with Asterisk
- Deep knowledge of:
SIP / RTP / VoIP
Dialplans
AGI / AMI
- Experience building or maintaining dialers (very important)
- Backend Development
- Strong coding skills in Java (Spring Boot preferred)
- Experience building microservices / APIs
- Comfortable writing high-performance, low-latency code
- Messaging & Event Systems
- Hands-on experience with:
Apache Kafka
RabbitMQ
- Ability to implement event-driven systems
- Scaling & Performance
- Experience handling high call volumes (1000+ concurrent calls)
Understanding of:
- Multi-threading
- Queue management
- Load handling
- Good to Have
- Experience with predictive dialers
- Exposure to WebRTC / real-time communication
- Experience with Docker / Kubernetes
- Understanding of TRAI / Indian telecom ecosystem
- Experience with FreeSWITCH (bonus)
What We Are NOT Looking For
- Pure solution architects who dont code
- People with only theoretical telecom knowledge
- Candidates without real dialer / Asterisk production experience
What We Are Looking For
Someone who has:
- Written real dialplans and backend code
- Debugged live call issues
- Worked on production telephony systems
- A problem solver who can go deep into logs, packets, and code
Impact of the Role
You will directly contribute to building a high-scale telephony + AI voice platform, working on real-time systems that handle thousands of concurrent calls.
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