Full Stack Software 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

Full Stack senior developer with ReactJS & Redux

Qualifications:

3 - 4 years of experience in application development and maintenance

Bachelor’s Degree/B.Tech/B.E in Computer Science or a related discipline

Advanced knowledge of HTML and CSS

Experience with using and building automated tests

Experience with CI/CD tooling (at least Git and Jenkins)

Experience with the Agile/Scrum/Kanban way of working

Proficient understanding of code versioning tools, such as Git

Experience with a modern frontend framework (e.g. Polymer, Redux, React, Angular, Vue.js or other component-based frameworks)

Experience with web paradigms such as REST, Responsive Web Design, Test-driven Development (TDD), Dependency Injection, etc.

Experience with common front-end development tools such as Babel, Webpack, NPM, etc.

Knowledge of performance testing frameworks including Mocha and Jest.

Knowledge of RESTful APIs.

Understanding of AWS, S3, API Gateway, DynamoDB, RDS, Lambda.

Senior Software Engineer – Java

Location: Pune (Hybrid – 3 days from office)

Experience: 8–15 Years

Domain: Information Technology (IT)

Joining: Immediate joiners only

Preference: Local candidates only (Pune-based)

Job Description:

We are looking for experienced and passionate Senior Java Engineers to join a high-performing development team. The role involves building and maintaining robust, scalable, and low-latency backend systems and microservices in a fast-paced, agile environment.

Key Responsibilities:

• Work within a high-velocity scrum team to deliver enterprise-grade software solutions.
• Architect and develop scalable end-to-end web applications and microservices.
• Collaborate with cross-functional teams to analyze requirements and deliver optimal technical solutions.
• Participate in code reviews, unit testing, and deployment.
• Mentor junior engineers while remaining hands-on with development tasks.
• Provide accurate estimates and support the team lead in facilitating development processes.

Mandatory Skills & Experience:

• 6–7+ years of enterprise-level Java development experience.
• Strong in Java 8 or higher (Java 11 preferred), including lambda expressions, Stream API, Completable Future.
• Minimum 4+ years working with Microservices, Spring Boot, and Hibernate.
• At least 3+ years of experience designing and developing RESTful APIs.
• Kafka – minimum 2 years’ hands-on experience in the current/most recent project.
• Solid experience with SQL.
• AWS – minimum 1.5 years of experience.
• Understanding of CI/CD pipelines and deployment processes.
• Exposure to asynchronous programming, multithreading, and performance tuning.
• Experience working in at least one Fintech domain project (mandatory).

Nice to Have:

• Exposure to Golang or Rust.
• Experience with any of the following tools: MongoDB, Jenkins, Sonar, Oracle DB, Drools, Adobe AEM, Elasticsearch/Solr/Algolia, Spark.
• Strong systems design and data modeling capabilities.
• Experience in payments or asset/wealth management domain.
• Familiarity with rules engines and CMS/search platforms.

Candidate Profile:

• Strong communication and client-facing skills.
• Proactive, self-driven, and collaborative mindset.
• Passionate about clean code and quality deliverables.
• Prior experience in building and deploying multiple products in production.

Note: Only candidates who are based in Pune and can join immediately will be considered.

Application Integration Engineer - HR/Payroll

Skills:

·        Experience on HR Payroll SaaS

o  HR/Payroll applications: Ideally UKG, multiple others ok

o  Financial applications: ideally knowledge of how HR/Payroll systems interact with ERPs (ideally NetSuite), and other personnel expenses (i.e., Expensify, Concur)

·        Knowledge of various Integrations approaches:

o  Native connectors

o  SFTP files

o  API – schema, design

·        Knowledge of multiple coding languages: Java script, XML, REST, SOAP etc.

·        Ability to work with data bases (ideally SQL, Oracle, PostgreSQL), including ETL

·        Some knowledge of Azure services, mainly SQL and Oracle databases, storage, analytics 

·        Experience working with global teams

·        Ability to overlap some work hours with US EST/CT time

·        Solid communication skills

·        Proactive, takes initiative, out-spoken

Experience

·        5-8 of years

Job Summary:

Greenie Startup is seeking a highly motivated and experienced Backend Developer to join our team. The ideal candidate should have a strong understanding of NodeJS, Distributed Systems, MongoDB, React, and other backend languages. The candidate will be responsible for designing, developing, and maintaining backend applications for our platform.

Responsibilities:

●     Develop and maintain backend services using NodeJS, MongoDB, and other backend languages

●     Design and develop RESTful APIs for the platform

●     Work with the team to develop scalable and fault-tolerant distributed systems

●     Implement Authentication, Identity Management, and Authorization mechanisms for the platform

●     Collaborate with the front-end team to integrate the backend services with the user-facing application

●     Write clean and maintainable code with a focus on performance and scalability

Requirements:

●     Bachelor's or Master's degree in Computer Science or a related field

●     At least 5 years of experience in backend development

●     Strong understanding of NodeJS, MongoDB, and other backend languages

●     Experience with distributed systems and RESTful APIs

●     Experience with React is a plus

●     Strong understanding of Authentication, Identity Management, and Authorization mechanisms

●     Familiarity with Firewall Security and other security mechanisms

●     Strong problem-solving skills and attention to detail

We are looking for a great JavaScript Enthu Interns who is known with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem-solving, sophisticated design, and quality products is important.

Responsibilities

• Developing new user-facing features using React.js, and Node.js

• Building reusable components and front-end libraries for future use

• Translating designs and wireframes into high-quality code

• Optimizing components for maximum performance across a vast array of web-capable devices and browsers

Skills

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

• Thorough understanding of React.js and its core principles

• Experience with popular React.js workflows (such as Flux or Redux)

• Knowledge of isomorphic React is a plus

• Familiarity with RESTful APIs

• Knowledge of modern authorization mechanisms, such as JSON Web Token

• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.

• Ability to understand business requirements and translate them into technical requirements

• A knack for benchmarking and optimization

• Familiarity with code versioning tools such as Git, SVN, and Mercurial

Skills:- Javascript, Redux/Flux, React.js and NodeJS

Fixed Stipend between - 5k - 7k

POST Internship we offer PPO, and continue with full-time.

Fuzen is a no-code SaaS platform founded and backed by IIT alumni.

We help non-technical SaaS founders bring their product ideas to life at ZERO upfront cost. We are building a marketplace of simple SaaS apps by helping founders to build products with our no-code platform.

The majority of our customers come from traditional industries like - construction, engineering, transportation, consulting etc. and we have recently received seed funding from angel investors.

We are looking for software developers who are good at problem-solving and are interested in product building.

1. Write clean, maintainable, and efficient code
2. Design robust, scalable and secure systems
3. Contribute to all phases of the development lifecycle
4. Follow best practices (test-driven development, continuous integration, SCRUM, refactoring, and code standards)
5. Drive continuous adoption and integration of relevant new technologies into the design.
6. You will be expected to work on Ruby On Rails, React JS, AWS, Heroku, Google Cloud and 3rd party API integrations.

IMPORTANT - Fuzen is an early-stage startup. The work culture is fast-paced and challenging. The job will be demanding and will offer a lot of learning. You should apply only if all of this excites you.

Title: Software Development Engineer Fullstack

Duration: Permanent / Fulltime

• Development and potentially maintenance of advanced software systems and their features.
• Interact with customers and partners to scope and estimate user stories from acceptance criteria.
• Produce highly testable code with an emphasis on quality and correctness.
• Work alongside other engineers to improve technology, while consistently applying established effective software development practices.
• Attend regular project meetings, report on progress and setbacks, and participate in both planning and retrospective exercises.
• Proficient in .NET Core /C# ,Strong in OOPs, MVC, Design patterns, SOLID principles, Web API,  SQL Server.HTML5, CSS3, JavaScript/Type scripting and web development frameworks.
• Expertise in React, Nodejs,
• 3 years of SQL server development 
• Database design SOAP, REST

Major Responsibility/ Job Responsibility:    

Strong knowledge with Java frameworks (Spring, Hibernate, Mybatis)

Strong core Java 7 or Java 8 skills (with good understanding of multithreading and performance tuning)

Strong understanding of object-oriented design patterns.

Strong experience in Architecture & Designing, Web services (Rest or SOAP)

Good knowledge on Jasper Reports, iReports & XML

Strong understanding and experience on JavaScript (object oriented), AJAX, JQuery, Anuglar 2 or 4, Primefaces

Good knowledge on SQL and PL/SQL for Postgres, Oracle database

Good understanding of application and web servers – JBOSS, TOMCAT, JETTY

Hands- on experience for Eclipse IDE

Self-learner willing to experiment with latest features

Team player, willing to take responsibility and contribute

Experience in Waterfall/Agile development

Good communication skills both written and oral.

Hands on Experience with Unit Testing of Application using Junit Framework.

Key Result Areas:

Requirement analysis, design, Coding & unit testing

Technical documentation

Timely delivery of module with good quality

Sound knowledge on OOAD

Sound knowledge on n-tier, MVC architecture

Necessary Qualification/ Technical Skills:

2-5 years of total IT experience

Strong knowledge with Java frameworks (Spring, Hibernate, mybatis,)

Strong core Java 7 or Java 8 skills (with good understanding of multithreading and performance tuning)

Strong understanding and experience on JavaScript (object oriented), AJAX, JQuery, Anuglar 2 or 4,Primefaces

Good knowledge on Jasper Reports, iReports & XML

Good knowledge on SQL or PL/SQL for Postgres, MySQL, Oracle database.

Good understanding of application and web servers – JBOSS,TOMCAT,JETTY

Desirable:

Experience in short release cycles & full software life cycle.

Entire SDLC knowledge

Demonstrated problem solving, analytic and troubleshooting skills.

Basic/Advanced Java Certification

Special Skills (If Any):

Experience in Performance Tuning and creation of secured applications

Experience with high volume and highly scalable application is a plus.

Experience in Transport, Logistics & Finance domain