Fullstack Developer

Position Title : Java Full Stack Developer

Location : Noida Sector 125

Experience : 5+ Years

Availability : Immediate

Job Summary :

We are looking for a Java Full Stack Developer with expertise in Microservices architecture to join our team.

The ideal candidate should have hands-on experience in Java, Spring Boot, Hibernate, and front-end technologies like Angular, JavaScript, and Bootstrap. You will work on enterprise-grade applications that enhance patient safety worldwide.

Key Responsibilities :

• Design, develop, and maintain applications based on Microservices architecture.
• Work with Java, Spring Boot, Hibernate, Angular, Kafka, Redis, and Hazelcast to build scalable solutions.
• Utilize AWS, Git, Nginx, Tomcat, Oracle, Jira, Confluence, and Jenkins for development and deployment.
• Collaborate with cross-functional teams to develop enterprise applications.
• Develop intuitive UI/UX components using Bootstrap, jQuery, and JavaScript.
• Ensure applications meet performance, scalability, and security requirements.
• Participate in Agile development while efficiently handling changing priorities.
• Conduct code reviews, debugging, and performance optimization.

Required Skills & Qualifications :

✔ 5+ Years of hands-on experience in Java 7/8, Spring Boot, and Hibernate.

✔ Strong understanding of OOP concepts and Design Patterns.

✔ Experience working with relational databases like Oracle/MySQL.

✔ Proficiency in Bootstrap, JavaScript, jQuery, HTML, and Angular.

✔ Hands-on experience in Microservices-based application development.

✔ Strong problem-solving, debugging, and analytical skills.

✔ Excellent communication and collaboration skills.

✔ Ability to adapt to new technologies and handle multiple priorities.

✔ Experience in developing high-quality web applications.

Good to Have :

➕ Exposure to Kafka, Redis, and Hazelcast.

➕ Experience working with cloud-based solutions (AWS preferred).

➕ Familiarity with DevOps tools like Jenkins, Docker, and Kubernetes.

Why Join Us?

✅ Work on cutting-edge technologies and enterprise-level applications.

✅ Collaborative and innovative work environment.

✅ Competitive salary and career growth opportunities.

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

About the Position

We are looking for a passionate and experienced software engineer to join our team at Mumbai. In this role, your primary responsibilities will be to take ownership of developing user facing applications and features in an agile manner. You will design and implement scalable and performant front-end solutions from scratch, while also taking a hard look at the existing ones.

What you will do at QI?

• Design, develop and deliver new user-facing apps and feature and improve existing ones
• Take ownership of product(s), and contribute to dev cycles and sprints planning
• Ensure technical feasibility of UI/UX design, share inputs with other teams including product, design and QA
• Optimize applications for performance, user experience and SEO
• Build reusable code and libraries. Contribute to open source projects.
• Stay up-to-date with new technologies with an eye of constantly adapting and improving our systems and methods.

Basic Job requirements

• 2 years + work experience in a similar role
• Strong experience in HTML5, CSS, DOM and front-end tooling ecosystem (Gulp,Grunt, Webpack)
• Excellent concepts and command over JavaScript
• Strong concepts and commercial experience in Vue.js
• Solid foundation in software development ( algorithm design, data structure, SDLC)
• Good concepts of unit testing and automation testing for UI components
• Good understanding of web app performance including Google Core Web Vitals metrics.

Location - Remote 

Good to have

• Basic knowledge of REST API and relational databases
• Basic understanding of browser internals
• Familiarity with web components and shadow DOM
• Exposure to progressive web app design.

About QuantInsti®

QuantInsti® was started in 2010, by the founders from iRage – a leading quant and algo trading firm in India.  From its early days focused on bridging the industry knowledge gap in the field of high-frequency trading, we have come a long way in the last decade. Today, we have a user base from 180+ countries with a growth rate much over 50% year-on-year.

At QuantInsti®, we swear by our goal of revolutionizing the way people approach the financial markets by empowering individuals and institutions with bleeding edge education and technologies. We offer high quality https://www.quantinsti.com/epat">learning experience and best-in-class https://quantra.quantinsti.com/">courses geared towards a global audience in quantitative trading and investing. Our in-house developed technology aims to bring institutional grade tools and https://quantra-blueshift.quantinsti.com/">platforms to democratize systematic and quantitative trading.

We achieve this by putting technology at the core of our business. We have a complex ecosystem of microservices and applications deployed over a fully cloud-based infrastructure. Our tech stack includes Node.js, Vue.js, Python and Docker. The team is driven by user experience, with strong focus on delivering scalable software solutions to complex and evolving business goals.

Why you should join us?

At QuantInsti, we work at the cutting edge of FinTech and EdTech offerings. We work with the newest technologies with a goal of delivering best experience to our users in a scalable manner, with high-performance and availability. If you love to be challenged intellectually, rest assured we have plenty of them for you. We follow an open and free work culture, where you are encouraged to ask questions, learn and teach. We offer a fast-paced environment where you take ownership of what you design and deliver. If you are looking for a move where you will find a reason to wake up every morning and rush to work, come join us.

Role- Sr Software Developer (Fullstack)

Location- Gurgaon/ Bangalore

Mode- Hybrid

Job Description: Sr Software Developer (Golang expertise) – 5+ years 

Role Summary:-

We are seeking an experienced Senior Engineer with strong expertise in Golang and cloud-based web applications. The ideal candidate will work across multiple backend services, contribute to architectural decisions, ensure quality through best practices, and collaborate effectively with cross-functional teams. 

Key Responsibilities:- 

• Design, develop, and maintain backend services using Golang. 

• Work across multiple Golang applications and microservices. 

• Have good understanding of internal enterprise services such as SSO, authorization, and user management. 

• Collaborate with cloud engineering teams to build and manage applications on AWS or Azure. 

• Follow and enforce backend development best practices including CI/CD, coding guidelines, and code reviews. 

• Use tools like SonarQube for static and dynamic code analysis. 

• Write high‑quality unit tests and maintain test coverage. 

• Document system designs, APIs, and technical workflows. 

• Mentor junior team members and contribute to overall team maturity.

Required Skills:-

• Strong, hands‑on experience with Golang across multiple real‑world projects.

• Good experience with dell cloud 

• Good understanding of cloud services (AWS or Azure) for web application development. 

• Knowledge of SSO, authorization services, and internal service integrations. 

• Excellent communication and collaboration skills. 

• Experience with CI/CD pipelines, coding standards, and automated testing. 

• Familiarity with code quality tools such as SonarQube. 

• Strong documentation skills. 

Good-to-Have Skills:-

• Knowledge of Python or JavaScript. 

• Understanding of frontend technologies (react.js). 

• Experience mentoring or guiding team members.

Note- We are looking out immediate joiners.

MERN Stack Expertise: Strong hands-on experience with MongoDB, Express.js, React.js, and Node.js.

Frontend Skills: Proficiency in React (Hooks, Redux, Context API), JavaScript (ES6+), TypeScript, HTML5, CSS3, Tailwind/Bootstrap.

Backend & APIs: Building scalable microservices, REST/GraphQL APIs, authentication & authorization flows.

Database & Cloud: Expertise in NoSQL (MongoDB) and deployment on AWS/GCP/Azure with CI/CD pipelines.

Fintech/Payments Domain:

• Payment Gateway Integrations (Razorpay, Cashfree, PayU, CCAvenue, BillDesk).
• Banking APIs (UPI, IMPS, NEFT, RTGS, NACH) for Pay-In / Payout solutions.
• Knowledge of reconciliation, settlements, fraud detection, KYC/AML, PCI-DSS compliance.

Gaming Domain Exposure (Preferred):

• In-app purchase systems, wallets, tokens/credits, reward points.
• Real-time payment flows in multiplayer or gaming platforms.

Problem Solving: Ability to design, develop, and deploy independently from Day 1 with minimal supervision.

Job Title: Backend Developer

Job Description: We are seeking a skilled Backend Developer to join our dynamic team. The ideal candidate will be responsible for designing, implementing, and maintaining the server-side logic, databases, and APIs of our applications. Key responsibilities include collaborating with cross-functional teams to develop scalable and efficient backend systems, troubleshooting and resolving issues, and staying updated on industry trends. Proficiency in programming languages such as Python, Java, or Node.js, along with experience in database management and API development, are essential for success in this role. Strong problem-solving skills, attention to detail, and a passion for creating robust and high-performance backend solutions are highly valued.

Requirements:

Proficiency in one or more backend programming languages (e.g., Python, Java, Node.js)

Experience with database management systems (e.g., MySQL, PostgreSQL, MongoDB)

Knowledge of RESTful API design and development

Familiarity with cloud services (e.g., AWS, Azure) is a plus

Strong problem-solving and troubleshooting skills

Collaborative mindset with excellent communication skills

Ability to work in a fast-paced and dynamic environment

Position: Senior Backend Developer (NodeJS)

Experience: 5+ Years

Location: Bengaluru

CodeCraft Technologies multi-award-winning creative engineering company offering design and technology solutions on mobile, web and cloud platforms.

We are looking for an enthusiastic and self-driven Backend Engineer to join our team.

Roles and Responsibilities:

● Develop high-quality software design and architecture

● Identify, prioritize and execute tasks in the software development life cycle.

● Develop tools and applications by producing clean, efficient code

● Automate tasks through appropriate tools and scripting

● Review and debug code

● Perform validation and verification testing

● Collaborate with cross-functional teams to fix and improve products

● Document development phases and monitor systems

● Ensure software is up-to-date with the latest technologies

Desired Profile:

● NodeJS [Typescript]

● MongoDB [NoSQL DB]

● MySQL, PostgreSQL

● AWS - S3, Lambda, API Gateway, Cloud Watch, ECR, ECS, Fargate, SQS / SNS

● Terraform, Kubernetes, Docker

● Good Understanding of Serverless Architecture

● Proven experience as a Senior Software Engineer

● Extensive experience in software development, scripting and project management

● Experience using system monitoring tools (e.g. New Relic) and automated testing frameworks

● Familiarity with various operating systems (Linux, Mac OS, Windows)

● Analytical mind with problem-solving aptitude

● Ability to work independently

Good to Have:

● Actively contribute to relevant open-source projects, demonstrating a commitment to community collaboration and continuous learning.

● Share knowledge and insights gained from open-source contributions with the development team

● AWS Solutions Architect Professional Certification

● AWS DevOps Professional Certification

● Multi-Cloud/ hybrid cloud experience

● Experience in building CI/CD pipelines using AWS services

Job Title: Senior Backend Developer

Location: Mali mahajan road, somwar peth, Pune.

Experience: 5-7 years

Responsibilities:

Backend Development:

• Design, develop, and maintain scalable and high-performance backend systems.

1. Utilize AWS Serverless skills (API Gateway, Lambda, DynamoDB, SQS, Event bridge, CloudWatch, permissions, accounts, multi accounts, streams

Technology Stack:

• Proficiency in JavaScript, Node.js, and Typescript for backend development.
• Leverage AWS services to build serverless applications with a focus on efficiency, security, and reliability.

E-commerce Expertise:

• Bring experience in e-commerce projects, with additional consideration for knowledge of Commerce tools.

Communication Skills:

• Communicate effectively with stakeholders across the US, UK, and Australia.
• Collaborate with cross-functional teams to understand requirements and provide technical insights.

Project Collaboration:

• Work closely with front-end developers, QA engineers, and other team members to deliver end-to-end solutions.

Requirements:

1. Bachelor’s degree in Computer Science or a related field.
2. 5-7 years of backend development experience.
3. Strong proficiency in AWS Serverless technologies.
4. Expertise in JavaScript, Node.js, and Typescript.
5. Experience with e-commerce projects, particularly Commercetools, is an advantage.
6. Excellent communication skills to engage with international stakeholders.