Java Developer

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 :

- Design, develop, and maintain applications using Java and Kotlin

- Write clean, scalable, and efficient code

- Build and consume RESTful APIs and microservices

- Participate in all phases of the software development lifecycle

- Work with databases like MySQL, PostgreSQL, or MongoDB

- Collaborate with cross-functional teams including Product, QA, and DevOps

- Conduct unit testing and assist in code reviews

- Troubleshoot and debug applications

- Ensure application performance, security, and scalability

Required Skills :

- Strong programming experience in Java (Core/Advanced)

- Experience in Kotlin

- Solid understanding of OOP concepts, design patterns, and data structures

- Experience with frameworks such as Spring Boot, Ktor, or Android SDK

- Proficient in building and consuming RESTful APIs

- Familiarity with Git, JIRA, and CI/CD tools

- Basic knowledge of unit testing frameworks like JUnit or Mockito

Responsibilities include designing and developing high-volume, low-latency applications for mission-critical business systems/application services and modules. Delivering high availability and performance. We expect them to contribute to all phases of the development lifecycle including writing well-designed, testable, efficient code. Must be capable of working independently and collaboratively. Responsibilities: Developer responsibilities include, but are not limited to the following:

• Experience as a Sun Certified Java Developer with proven hands-on Software Development experience. We use Java 8

• 6-10 years Java development experience with JSE/JEE, Java-based Micro-services framework and implementation, Spring framework, Hibernate framework, SQL etc

• Hands on experience on Spring boot & SPARK Microservices and OSGi specifications

• Hands-on experience with ReactJS

• Strong knowledge of micro-service logging, monitoring, debugging and testing

• Implementations experience of micro-service integration, packaging, build automation and deployment

• At least two years of experience in SOA & Microservices based process applications using BPM (Activiti/JBPM/Camunda)

• Object Oriented analysis and design using common design patterns.

• Insight of Java and JEE internals (Class loading, Memory Management, Transaction management etc)

• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)

• Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC, Spring Boot)

• Hands-on experience with Relational and NoSQL databases (Mongo DB or Cassandra either one is a must)

• Hands-on experience in one of the cloud AWS, Google or Azure.

• Hands-on with Rest based web services

• Work experience either following CLOUD (AWS or Azure or GCP) will be an advantage.

What is company looking for:

Company is looking forward to onboard a diligent Full Stack Developer/ Software Engineer to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment. As a Full Stack Developer. you should be comfortable around both front-end and back-end coding languages, development frameworks and

third-party libraries. You should also be a team player with a knack for visual design and utility.

Responsibilities:

1. Work with development teams and product managers to ideate software solutions.
2. Design client-side and server-side architecture.
3. Build the front-end of applications through appealing visual design.
4. Develop and manage well-functioning databases and applications.
5. Write effective APIs.
6. Test software to ensure responsiveness and efficiency.
7. Troubleshoot, debug and upgrade software.
8. Create security and data protection settings.
9. Build features and applications with a mobile responsive design.
10. Write technical documentation.

Requirements:

1. Backend: Scrapy (Python), Spring (JAVA), Laravel (PHP), MySQL, NoSQL, NGINXPlus.
2. Frontend: Angular 5+ Ngrx/store5.
3. nfrastructure: Google cloud platform (App engine, CloudSQL, BigQuery, PubSub,
4. Firebase Hosting), Scrapy Cloud, Pusher.io (WebSockets), Getstream.io, Filestack,
5. Postmark app, AS2Gateway.
6. Tools: Beanstalk app, Postman app, JIRA
7. 6 years proven experience as a Full Stack Developer or similar role.
8. Experience working with service-oriented architectures and web based solutions.
9. Familiarity with common stacks.
10. Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML,
11. jQuery).
12. Knowledge of multiple back-end languages (e.g. C#, Java, Python) and JavaScript frameworks
13. (e.g. Angular, React, Node.js).
14. Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design.
15. Experience working on Agile processes (Scrum, Kanban).
16. Experience working on the AWS technologies.
17. Excellent communication and teamwork skills
18. Great attention to detail.
19. Organizational skills.
20. An analytical mind.
21. Degree in B.tech/BE.

LogiNext is looking for a technically savvy and experienced Principal Software Engineer - Client Success  to be part of the support team. Client success engineering is an important part of the LogiNext experience. You will help in quickly resolving the technical issues across the entire SaaS product suite. You will be responsible for maintaining the SLAs as defined by the organization. You will be collaborating with the client’s operations team, engineering team .

Responsibilities 

• Troubleshoot application and software related issues and determine the root cause for the issues
• Work on defined SLAs to ensure that our client receives the best of the services
• Provide minor enhancements, production, and technical support to LogiNext’s enterprise clients
• Monitor production alerts and escalate the issues for any anomalies in the system
• Ensure complete compliance of ticketing tool and report metrics on a daily basis
• Work with the existing engineering team to maintain highly scalable and secure products
• Manage and prioritize multiple work requirements to meet deadlines by working independently and leading a team 

Requirements

• Bachelor’s degree in Computer Science, Information Technology or related field
• 8 to 10 years experience in a production support role or in software development using Java, J2EE, Spring, RESTful APIs, MySQL, MongoDB
• Expertise on production support processes such as incident or change management, call triaging, critical issue procedures

• Experience in writing and maintaining scripts to monitor system activity and automate production support activities that enable efficiency and productivity of Customer Success team
• Proficiency in troubleshooting, root-cause analysis, SLA adherence and metrics reporting for large enterprises 
• Knowledge of monitoring tools, alert escalation, customer and other stakeholder management
• Familiarity and/or experience in implementing ITIL concepts in addition to technical aptitude are highly valued
• Providing support on weekends on a rotational basis
• Expereince in team management

Job Description for Java:

• Experience in JAVA programming and application development using Spring MVC, Spring Boot, Spring Security, Hibernate and Microservices

• Experience in building products with Full stack technologies, with excellent understanding of computer science fundamentals, data structures, algorithms, OOPs and OOA/D

• Experience in MySQL, Mongo dB (or other NOSQL db’s), REST, Web Sockets, JavaScript, Ajax

• Experience with GO a plus

• Experience with one of JavaScript Frameworks (React, Angular, Vue etc.)

• Experience in Rest API development using Spring MVC or Spring Boot

• Able to define, design, implement complex, and scalable systems

• Good team player and communication skills

• Experience with agile development methodologies with Test Driven Development (TDD)

• Experience with Jenkins Setup CI/CD (Continuous Integration / Continuous delivery)

MERN Stack Developer

2.5+ YEARS

Roles and Responsibility

Working experience as a MERN Stack Developer.

Design, code and manage large scale services using cutting edge technologies (NodeJs, ReactJS/AngularJS/VueJs etc).

In-depth knowledge of NodeJS.

Creating secure RESTful-based web services in XML or JSON.

Good knowledge in ECMAScript(6/7/8) is essential.

Strong fundamentals in Data Structures and Algorithms.

Experience implementing applications using Angular or React.

Should have an working experience with state management, React Hooks, React Fragments etc.

Should have a good Knowledge of Redux, Flux, and Webpack.

Writing the test case for components.

Experience working with Docker, Redis, MySQL, MongoDB.

Comfortable taking challenges and learning new technologies.

Excellent communication skills and client-facing experience.

Ability to mentor and build the team.

Knowledge of code versioning tools such as Git, Bitbucket or SVN.

Knowledge of the following will be considered as an advantage

Experience with Socket.IO for Real time communications.

Consumer Web Development Experience for High-Traffic, Public Facing web applications.

Caching with Redis For Speedy Performance.

Experience with cloud message APIs.

Knowledge of GraphQL, PostgreSQL.

Knowledge of NextJs.

Knowledge of any frameworks of NodeJS.

Experience with Progressive Web applications.

Knowledge of SSR.