Product Engineer – Fullstack Developer

Job Title : Software Development Engineer (Python, Django & FastAPI + React.js)

Experience : 2+ Years

Location : Nagpur / Remote (India)

Job Type : Full Time

Collaboration Hours : 11:00 AM – 7:00 PM IST

About the Role :

We are seeking a Software Development Engineer to join our growing team. The ideal candidate will have strong expertise in backend development with Python, Django, and FastAPI, as well as working knowledge of AWS.

While backend development is the primary focus, you should also be comfortable contributing to frontend development using JavaScript, TypeScript, and React.

Mandatory Skills : Python, Django, FastAPI, AWS, JavaScript/TypeScript, React, REST APIs, SQL/NoSQL.

Key Responsibilities :

• Design, develop, and maintain backend services using Python (Django / FastAPI).
• Deploy, scale, and manage applications on AWS cloud services.
• Collaborate with frontend developers and contribute to React (JS/TS) development when required.
• Write clean, efficient, and maintainable code following best practices.
• Ensure system performance, scalability, and security.
• Participate in the full software development lifecycle : planning, design, development, testing, and deployment.
• Work collaboratively with cross-functional teams to deliver high-quality solutions.

Requirements :

• Bachelor’s degree in Computer Science, Computer Engineering, or related field.
• 2+ years of professional software development experience.
• Strong proficiency in Python, with hands-on experience in Django and FastAPI.
• Practical experience with AWS cloud services.
• Basic proficiency in JavaScript, TypeScript, and React for frontend development.
• Solid understanding of REST APIs, databases (SQL/NoSQL), and software design principles.
• Familiarity with Git and collaborative workflows.
• Strong problem-solving ability and adaptability in a fast-paced environment.

Good to Have :

• Experience with Docker for containerization.
• Knowledge of CI/CD pipelines and DevOps practices.

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

-Design and maintain efficient database solutions using RDBMS.

-Write complex SQL queries for data extraction and manipulation.

-Implement and optimize AWS services for scalable application deployment.

-Develop server-side logic using PHP and integrate front-end elements with JavaScript.

-Collaborate with teams to design, develop, and deploy web applications.

Development and Customization:

Build and customize Frappe modules to meet business requirements.

Develop new functionalities and troubleshoot issues in ERPNext applications.

Integrate third-party APIs for seamless interoperability.

Technical Support:

Provide technical support to end-users and resolve system issues.

Maintain technical documentation for implementations.

Collaboration:

Work with teams to gather requirements and recommend solutions.

Participate in code reviews for quality standards.

Continuous Improvement:

Stay updated with Frappe developments and optimize application performance.

Skills Required:

Proficiency in Python, JavaScript, and relational databases.

Knowledge of Frappe/ERPNext framework and object-oriented programming.

Experience with Git for version control.

Strong analytical skill

Wallero is hiring .Net Full stack Developers with 4+ years of experience in Hyderabad, Telangana, India.

This is a permanent, full-time position.

About Wallero: http://www.wallero.com/

Key Responsibilities:

- Proficiency in C#, Angular, SQL, Azure, and RestAPIs.

- Fluent in Azure & Microsoft .NET Stack for Web Applications & API Development.

- Experience building, maintaining, and integrating applications in various tech stacks including MVC, .Net, C#, SQL, and Angular.

Interested candidates can apply the job.

References are highly appreciated.

We are a B2B SaaS company that is re-imagining how companies use sales incentives to motivate their employees. We believe great results are only achieved when people are motivated - and our product is nothing but an extension of that philosophy.

On a more day-to-day level, our product takes away the ambiguity and grunt-work behind manual sales incentive calculation, and allows companies to experiment with incentive plans that actually work for every employee - and not just top performers. We are a team of experienced founders who between them have built and sold software products pretty much all across the globe. We are backed by some of the best angels and institutional investors in India - and are growing at breakneck speed.

Responsibilities

• Work as part of a collaborative, agile team to deliver industry-leading engagement capabilities in web.
• Integrate with other services to help Elevate seamlessly provide value to more companies
• Design and develop feature enhancements that continue to deliver on the value and provide an excellent customer experience
• Troubleshoot and resolve emergency server or code issues at any stack level
• Ability to empathize with end-users; build with scale and ease of adoption in mind
• Experience building in an agile setting with code reviews and quality as a priority
• Strong design skills for separation and modularity of code; aversion to overly complex, spaghetti code

Qualifications

• A bachelor's degree in Computer Science, related technical field, or commensurate experience
• 1+ years experience in production web application development
• 1+ years of experience working with NodeJS or an equivalent web framework and language
• Experience writing JavaScript code, either vanilla JS or using a framework such as Node.js or React, Redux
• Unit testing experience (Jest)
• 3rd party API usage and integration experience
• RDBMS usage (e.g. MySQL, PostgreSQL)
• AWS

Persistence: design it, build it, if it breaks, fix it, but make it work, and make it shine

Bonus Skills

• Free and/or Open Source project work
• Amazon Web Services, DevOps experience
• Database Design

Perks

• Competitive salary and equity package
• Great culture and team camaraderie
• Work from Anywhere
• Health Insurance
• Flexible vacation and sick policy
• Macbook Pro or similar Linux laptop

Cayzen India is working on several software as a service (SAAS) startup ideas for both internally funded startups as well as customers who like leveraging the latest technologies to simplify their business. We are building a startup team in India that is on par with our US team in the quality of talent and challenging work. We are not looking to grow numbers or bodies, we are looking for quality talent with solid engineering fundamentals and inquisitive mind for tough problems.

We are looking to add a full stack developer and data gurus to our team.

Position Responsibilities:

• Good understanding of Agile Scrum in a fast-paced environment
• Develop quality software using the latest full-stack software tools primarily.Net and JavaScript with cloud and mobile as the core
• Experience in building and deploying enterprise-level web-based applications and complex business processes
• Familiar with automated testing and continuous integration methods.
• Build documentation of both business requirements & technical solutions
• Strong architecture and design skills to design or understand design for complex multi-tiered applications
• Ability to understand business requirements and design systems accordingly
• Ability to build working prototypes early in the development life cycle & validate business requirements
• Manage/contribute offshore delivery of projects–ensure on-time delivery, and anticipate and flag potential issues ahead of time
• Ability to mentor development teams in complex technical aspects of applications and guide them through various solutions
• Ability to lead technical reviews of the project, identify potential problems and resolve them

Qualifications and Technical Skills:

• B-Tech/M-tech/MCA
• 3-5 years of experience in building commercial software with.Net framework
• Strong skills in programming with C# ASP.Net/ MVC
• Experience with JavaScript/ jQuery / Angular JS / React  or other similar JavaScript frameworks.
• MS SQL Server / Big Data
• WebServices / Rest/ WCF/WebAPI

Benefits

Cayzen India offers above industry benefits and a startup culture with a small and high talent team. The benefits are above the current industry levels and are open to consideration for the right candidate. The benefits also include being part of a startup team and having the equity and leadership role as the team grows.

About the role 

We are looking for a strong full stack engineer who has experience building web and mobile applications for enterprise and consumers. You will help design, build and maintain scalable applications and build the API infrastructure that can be used across all client products.

Responsibilities:

• Building applications that are responsive, performant, and accessible Produce high quality HTML/CSS pages from mock ups.
• Collaborating with other disciplines across engineering, UX, and Product to help develop front end solutions.
• Using our Micro service stack to integrate front end into the development lifecycle.
• Build high availability and extremely reliable transactional systems.
• Own and manage all phases of the software development lifecycle (planning, design, implementation, deployment and support)
• Design, build and maintain API infrastructure that allows for standard integration methodology between applications and third party services
• Collaborate effectively with the rest of the team to design and launch new features
• Deliver on rapid implementation schedules to build web functionality that is fast, scalable, and upholds smart development goals and principles
• Work on all things front-end and backend including web and mobile
• Maintain code integrity, quality and ensure responsiveness of applications.

Requirements:

• 3+ year track record of relevant work experience and a Computer Science or a related technical discipline is required.
• Proficient in HTML 5, CSS, and JavaScript frameworks, like React, Vue.js, NodeJS among others.
• Experience working with graphic designers and converting designs to visual elements using JavaScript, HTML and CSS.
• Strong knowledge  and experience with server-side web of building restful APIs for internal and external products using Node.js
• Doesn’t shy away from testing and code review.
• Good knowledge of OOPS Concept and Data Structure like Queue, Stack, Tree, Linked List.
• Knowledge of code versioning tool - Git.
• knowledge of cloud computing platforms, like Amazon Web Services
• Strong Knowledge of database systems like Mysql.
• Interest and ability to learn new technology stacks as needed.
• Good problem solving skills and Willing to learn new technology.
• Passion for developing awesome user experiences
• Independent, dedicated, and able to deliver production ready code with minimal guidance.