Rust 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

Responsibilities:

• Work with product managers to find solutions to critical problems, face internal customers, and create requirements.
• Triage and fix critical issues that arise in the field that affect our core product.
• Manage git repositories, pull requests, and review code.
• Communicate properly & promptly with all stakeholders.
• Build a proof-of-concept for new products from scratch.
• Optimize, clean up, and comment on the existing codebase.

Requirements:

• Must have 5-8 years of hands-on engineering experience.
• Must be an expert in JavaScript/Typescript with ES6+ features, Node.js, ReactJS, and Redux
• Must be an expert in HTML5 CSS3 SASS, and Webpack.
• You are proficient with RESTful API design and implementation using Node.js.0
• Proficiency in relational (MySQL, Cloud Spanner etc. ) and non-relational (MongoDB, Google Cloud Firestore etc. ) databases.
• Must be an expert in data structure and creating highly optimized algorithms.
• Should have a working knowledge of GCP services like App Engine, CloudSQL, Compute Engine etc.
• Should have a working understanding of microservices patterns, serverless design, and event-based architecture.
• Willingness to learn new programming languages, frameworks, and paradigms.

Skill set Requirement
RoR
Any front end frameworks (good to have)
Docker, Aws and Kubernetes
Sidekiq

Note : This position is for Pune location.  Please only apply if you are in pune or willing to relocate to Pune.

We are a product company with headquarter in New York and development centre in Pune.

We are currently seeking skilled and motivated Senior Java Developers to join our dynamic and innovative development team. As a Senior Java Developer, you will be responsible for designing, developing, and maintaining high-performance, scalable Java applications.

Join DataCaliper and step into the vanguard of technological advancement, where your proficiency will shape the landscape of data management and drive businesses toward unparalleled success.

Please find below our job description, if interested apply / reply sharing your profile to connect and discuss.

Company: Data caliper

URL: https://datacaliper.com/

Work location: Coimbatore

Experience: 3+ years

Joining time: Immediate – 4 weeks

Required skills:

-Good experience in Java/J2EE programming frameworks like Spring (Spring MVC, Spring Security, Spring JPA, Spring Boot, Spring Batch, Spring AOP).

-Deep knowledge in developing enterprise web applications using Java Spring

-Good experience in REST webservices.

-Understanding of DevOps processes like CI/CD

-Exposure to Maven, Jenkins, GIT, data formats json /xml, Quartz, log4j, logback

-Good experience in database technologies / SQL / PLSQL or any database experience

-The candidate should have excellent communication skills with an ability to interact with non-technical stakeholders as well.

Thank you

Candidates with less than 6 years of experience in Development are kindly requested not to apply.

Role Overview

We are seeking a highly skilled and motivated Staff Engineer to lead our small but talented dev team and take ownership of our architecture and infrastructure. This role is a blend of hands-on technical leadership and strategic planning, critical to our product’s growth and scalability.

Key Responsibilities

• Team Leadership: Lead and manage the technology  along with a small and driven development team, fostering a culture of innovation, collaboration, and excellence.
• Architecture Ownership: Design, review, and evolve the architecture for scalable and robust microservices and micro-products.
• Infrastructure Management: Oversee AWS and GCP environments, ensuring secure, cost-effective, and efficient operations.
• AI Integration: Collaborate with AI specialists to integrate fine-tuned models into our ecosystem seamlessly.
• DevOps Excellence: Establish CI/CD pipelines, monitoring, and alerting systems to support rapid development and reliable deployments.
• Code Quality: Set and enforce high standards for code quality, testing, and documentation.
• Strategic Planning: Collaborate with product and business teams to align technical decisions with company goals.
• 
  

Requirements

• Experience: 6+ years in software development with strong backend and frontend expertise (Python, React preferred).
• Architecture Skills: Proven experience designing and implementing scalable, distributed systems.
• Cloud Expertise: Hands-on experience with AWS and GCP services, cost optimization, and infrastructure-as-code tools like Terraform or CloudFormation.
• DevOps Knowledge: Strong understanding of CI/CD pipelines, Docker, Kubernetes, and related tools.
• Leadership: Experience leading and mentoring small teams, driving projects to completion.
• AI Familiarity: Understanding of AI/ML model integration in production systems is a plus.
• Soft Skills: Excellent communication, problem-solving, and organizational skills.
• 
  

What We Offer

• Opportunity to shape the future of accessibility technology.
• Collaborative and innovative work environment.
• Competitive compensation and equity options.
• Remote work flexibility.
• 
  

Join us in making the web more inclusive and accessible!

• We are looking for a Full-Stack Developer with exceptional development skills, who is motivated to combine the art of design with the art of programming. You’ll be part of a cross-functional, remote 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.

About OJ Commerce: 

OJ Commerce is a fast-growing, profitable online retailer based in Florida, USA with a full-fledged India office based in Chennai driven by a sophisticated, data-driven system to run the operations with virtually no human intervention. We strive to be the best-in-class ecommerce company delivering exceptional value to customers by leveraging technology, innovation and brand-partnerships to provide a seamless & enjoyable shopping of high-quality products at the best prices to our customers.

Responsibilities:

Work with business-stakeholders to understand requirements, prototype, build and deploy it.

CRUD the backend code you own keeping maintenance, performance and security in mind.

Keep up breast of latest technologies and its ecosystem and adopt ones that aid safe product delivery at speed.

Automate the boring and mundane stuff for you prefer to be productive than being busy.

We are flat. Be responsible for professional growth of self and the team. 

• Tune application for performance.
• Take initiatives and manage change to work towards business goals at speed without compromising safety.
• Coach full-stack developers on backend skills.
• Provides problem resolution support, specific to application issues, identifies and resolves problems in application software, determines symptoms and ensures accurate problem definition

Develop functional, architectural and other documentation as required for productive functioning of teams.

• Be the brand ambassador for OJ Commerce by speaking at meetups, conferences, etc.
• We are fluid. Be ready for changing dynamics in responsibilities from time to time. Exciting isn't?
• Take the lead in digital transformation of legacy applications.

What you need to shine?

• You have the prior experience in modernising legacy applications.
• You are a passionate hands-on developer with deep experience in building enterprise grade software in Microsoft ASP.NET Core, ASP.NET MVC, Web API, SOA, Micro-Services and RESTful Services with knowledge of SQL Server database.
• You have the ability to see and work on the big picture (Application Architecture) and devilish details (Complex Code).
• Strong experience in developing web applications using C#, VB.Net, .NET, LINQ, Net Framework 4.0, MVC 3/4/5, ASP.NET Web API, .Net Core etc.
• You are Cloud savvy, preferably Google Cloud.
• You have rich experience in Object-Oriented Programming (OOP) with good knowledge of practical design-patterns and its applications.

Hands-on experience in building SOA or Micro-services preferably on .NET Core.

Proven Architectural skills with high standards in Code quality

Knowledge of ReactJS/Typescript would be added advantage.

Practical experience in Agile development methodologies of using CI/CD.

Extreme Programming (TDD) experience is sought after by us.

What we Offer

• Greenfield opportunity to transform legacy backend applications to latest technology stack.
• Fast-paced start-up environment: This is not for the faint hearted; you need grit and passion as much as you need the core skills.
• Work in an interdisciplinary team where learning from one another and developing solutions cross-functionally is a key part of our culture.
• Golden opportunity to make history by making big business impact.
• Competitive salary to take good care of self and family.
• Insurance Benefits: Medical and Accident cover.
• Flexible Working Hours

·        Qualification: bachelor’s or master’s degree in computer science, Engineering, or related field.

·        Proven 4+ years of experience in full stack development, including proficiency with React, Tailwind CSS, Python, and Flask.

·        Strong understanding of Graph QL concepts and hands-on experience with Ariadne or similar frameworks.

·        Familiarity with containerization using Docker for application deployment.

·        Demonstrated expertise in machine learning model integration, preferably using the Hugging Face framework.

·        Experience deploying machine learning models on cloud platforms such as Replicate and AWS is a strong plus.

·        Excellent problem-solving skills and a proactive attitude towards learning and adapting to new technologies.

·        Should have experience in Backend: Python, Flask Framework, Langchain ML Ops Framework, Ariadne Graph QL Framework, Docker. Frontend: React, Tailwind. ML Model Development – Hugging Face Model Training, ML Deployment onto Replicate or AWS

Our Tech stack:

· Java 11, Spring Boot, React.JS

· MySQL, Redis, Elastic Stack, MongoDB

· Docker, K8s

· GitHub, Jenkins

· Slack, Jira

What we're looking for:

· Minimum of 5 years of experience as a software developer.

· Excellent knowledge of Java.

· Demonstrated skills in web-based development, including REST API s and JS frameworks such as Vue JS/React.

· Experienced with cloud platforms (AWS / GCP).

· Experienced with SQL and NoSQL databases.

· Experienced with CI/CD environments.

· Familiar with container technologies (Docker, Kubernetes).

· Proficient in agile programming practices.

· Strong analytical mind with a good dose of creativity.

· Meticulous person who strives to constantly improve his/her/their competencies.

· Excellent communication skills.

Nice-to-haves:

· Familiarity with Web sockets.

· Has contributed to open source projects and can point us to his/her/their GitHub account.