Full Stack Developer

Job Title : Senior Full Stack Developer (Dashboard Applications)

Experience : 7+ Years

Location : Gurgaon (Mandatory)

Duration : 6 to 9 Months Contract (Initial 6 Months Commitment Mandatory)

Start Date : 1st April (Immediate Joiners Preferred)

Work Mode : Hybrid (Work From Home + 1 Day/Week at Home Office in Gurgaon)

Work Schedule : 45 Hours/Week + Mandatory Weekend Availability (Saturday & Sunday)

About the Role :

We are hiring a highly skilled Full Stack Developer based out of Gurgaon to work directly with the leadership team of a Cybersecurity Product Company.

This role focuses on building advanced, high-performance dashboard applications to significantly enhance the company’s product capabilities.

This is a high-ownership, high-impact role, where the selected candidate will work closely with the founder/leadership and contribute directly to core product innovation.

Mandatory Skills :

React + TypeScript, Dashboard/Data Visualization (ECharts/D3.js), Node.js (Fastify), Kafka (real-time streaming), ClickHouse, PostgreSQL, Redis, Microservices Architecture, Performance Optimization, Gurgaon-based candidate with 7+ years experience.

Important Note (Strict Requirements) :

• Candidate must be based in Gurgaon (No remote-only candidates)
• Must be comfortable working on weekends (Sat & Sun)
• Must commit to minimum 6 months
• Must be available for in-person collaboration (1 day/week at home office)
• No compromise on the above requirements

Key Responsibilities :

• Design and develop scalable, real-time dashboard applications
• Build data visualization systems using modern frontend frameworks
• Work on end-to-end full stack development (UI to backend APIs)
• Integrate large-scale data pipelines and streaming systems
• Optimize dashboards for performance, usability, and responsiveness
• Collaborate directly with leadership to translate business needs into technical solutions
• Contribute to architecture decisions and system design

Required Technical Skills :

Frontend :

• React.js (18+)
• TypeScript
• TailwindCSS
• State Management (Zustand / TanStack Query)
• Data Visualization:
• Apache ECharts
• D3.js
• Leaflet.js (Maps)

Backend :

• Node.js (20 LTS)
• Fastify (preferred)
• REST API Development
• Prisma ORM

Data & Streaming :

• Apache Kafka / KafkaJS
• Apache Flink (or Kafka Streams)

Databases :

• ClickHouse (must have for analytics use cases)
• PostgreSQL
• Redis

Good to Have :

• Graph DB (Neo4j)
• Object Storage (MinIO)

Machine Learning (Nice to Have) :

• Python (FastAPI)
• Basic experience with:
• scikit-learn
• pandas / numpy
• Understanding of anomaly detection systems

DevOps & Infrastructure :

• Docker & Kubernetes
• Terraform
• Nginx
• Monitoring: Prometheus, Grafana
• Observability: OpenTelemetry
• Authentication: Keycloak / JWT

Testing & Quality :

• Unit & Integration Testing:
• Vitest / Jest
• Supertest
• E2E Testing:
• Playwright
• Performance Testing:
• k6

What We’re Looking For :

• Strong experience in building complex dashboards or analytics platforms
• Ability to work independently as a single contributor
• High ownership and accountability mindset
• Strong problem-solving and system design skills
• Someone who is practical, execution-focused, and reliable

Why Join :

• Direct collaboration with leadership
• Opportunity to build cutting-edge cybersecurity dashboards
• High-impact role with end-to-end ownership
• Flexible work setup (with meaningful in-person collaboration)

Role Description

• Develop the tech stack of Pieworks to achieve the fly-wheel in the most efficient manner
• Focus on standardising the code, making it more modular to enable quick updations
• Integaring with various APIs to provide seamless solution to all stakeholders
• Build a robust node based information tracking & flow to capitalize on degrees of separation between members, candidates
• Bring in new design ideas to make the UI stunning and UX functional i.e one click actionable, as much as possible

 Mandatory Criteria

1. Ability to code in Java
2. Ability to Scale on AWS
3. Product Thinking
4. Passion for Automation

If interested kindly share your updated resume at 82008 31681

When life gives you lemons and you can code both front and back with equal zest, you’re probably a Full Stack Developer we’d love on our team.

At Lemon Yellow, we’re looking for someone who thrives on building end-to-end web solutions using the MERN stack. From crafting intuitive front-ends to developing efficient, scalable back-end systems, you’ll be involved in shaping digital products from the ground up. If turning design mockups into pixel-perfect, high-performance applications excites you, we’re ready to build with you.

1. Core Responsibilities

• Build and maintain end-to-end web applications using the MERN stack.
• Act as a bridge between design and development to bring ideas to life with clean, scalable code.
• Support digital campaigns through intuitive and functional tech implementations.
• Design, develop, and deploy scalable front-end and back-end components.
• Write clean, maintainable code while collaborating with designers, marketers, and other developers.
• Translate product requirements and UI/UX wireframes into fully functional digital solutions.

2. API & Integration Management

• Implement RESTful APIs and connect third-party tools and services.
• Ensure smooth data exchange across platforms through secure integrations.
• Manage user authentication and authorization using mechanisms like JWT or OAuth.

3. Code Quality & Optimization

• Debug, profile, and optimize applications for performance and reliability.
• Maintain unit and integration test coverage for code robustness.
• Conduct code reviews and help improve internal coding standards.

4. Agile Collaboration

• Actively participate in agile activities: daily stand-ups, sprint planning, retros, and demos.
• Contribute to task estimation and cross-functional problem-solving.
• Stay responsive to project shifts and quick delivery needs.

5. Continuous Learning & Innovation

• Stay up to date with the latest development trends, tools, and practices.
• Share learnings and explore creative solutions for technical challenges.
• Experiment with emerging technologies and suggest process improvements.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• Minimum 1 year of hands-on experience building production-ready web applications using MongoDB, Express.js, React.js, and Node.js.
• Strong command of JavaScript (ES6+), HTML5, and CSS3.
• Experience with Git and version control systems
• Familiarity with RESTful API design, JSON, and authentication mechanisms (JWT, OAuth)
• Familiarity with cloud platforms (AWS, Azure, or GCP) and containerization (Docker).
• Basic understanding of CI/CD pipelines and automated testing.
• Strong analytical and problem-solving mindset.
• Detail-oriented with a passion for clean, maintainable code.
• Collaborative attitude with good verbal and written communication skills.

What are we offering?

Experience

• A chance for you to work in a thriving and growing environment. We foster a culture where growth is harmonious and creativity is always appreciated - you grow and you encourage others to do the same.

Exposure

• If you believe in your work, we believe in you. If you think your designs have the power to change the world, we'll help you bring your vision to life and give you the platform to prove it.

Empathy

• We have a carefully curated culture that promotes 2 things: fun & fulfilment. Your welfare - personal, professional, mental, and physical - becomes our responsibility. From Fitness Thursdays to learning sessions, we try to make you laugh & learn.

Who are we?

Lemon Yellow LLP is a user-centered UI/UX design agency, based out of Thane, Maharashtra. With international operations, an experienced mentorship, and a passionate team, we aim to design digital happiness.

How do you reach us?

Well, after you send in your application, it takes us 2-3 weeks to review it. Sometimes, not often, we might delay just a bit beyond that. This happens when our mailbox is flooded with applications.

We promise we won’t ghost you, you’ll definitely hear from us. In the meantime, feel free to explore our official website.

Job Description:

We are looking for a skilled BigCommerce Developer. This role involves leading the development and customization of BigCommerce solutions, ensuring smooth execution and delivering high-quality projects. If you're passionate about eCommerce development and thrive in a dynamic environment, this is the perfect opportunity for you!

Key Responsibilities:

• Lead and contribute to the development and customization of BigCommerce and Shopify-based solutions.
• Collaborate with cross-functional teams to define, design, and deliver eCommerce solutions that meet client requirements.
• Develop, test, and maintain websites using web technologies including HTML, CSS, JavaScript, jQuery, ReactJS, and NextJS.
• Ensure that all eCommerce projects are delivered on time, within scope, and within budget.
• Troubleshoot and resolve issues related to website functionality, integrations, and performance optimization.
• Stay up-to-date with the latest BigCommerce platform updates and industry trends.
• Mentor and guide junior developers, providing technical direction and support.

Requirements:

• Proven experience as a Team Leader or Senior Developer in eCommerce development, specifically with BigCommerce and Shopify.
• Strong knowledge of eCommerce platforms (BigCommerce, Shopify) and related integrations.
• Proficiency in web development languages such as HTML, CSS, JavaScript, jQuery, ReactJS, and NextJS.
• Experience with project management tools and methodologies, with a successful track record of delivering projects.
• Strong problem-solving abilities and strategic thinking.
• Exceptional communication and interpersonal skills.
• Ability to adapt and work effectively in a fast-paced, dynamic environment.
• Must be a positive, energetic individual with a winning mentality, curiosity, and creativity.

Desirable Qualities:

• Excellent communication skills, both written and verbal.
• A collaborative mindset with a focus on fostering a positive team culture.
• Eagerness to contribute to the growth and success of the company by bringing innovative ideas and solutions.

We are looking for a Principal Software Engineer who has experience building cloud native applications in an Agile environment

Key Aspects of Role :

• Leverage deep knowledge of the full technology stack to help achieve business objectives and customer outcomes
• Collaborate with Product Management to validate the technical feasibility of and establish non-functional requirements
• Collaborate with Architecture to evolve architecture to solve technical challenges, support future requirements, scale effectively, continually meet/exceed SLAs and resolve tech debt
• Technical advisor to internal or external stakeholders on complex technical components
• Technical leader working with the team to help remove blockers and act as a tie breaker
• Adjust the team processes, listening to feedback and guiding the team through change and driving continuous improvement
• Guide, teach, and mentor team, providing feedback and moderating discussions
• Represent the interests of the team in cross functional meetings
• Maintain and proactively share knowledge of current technology and industry trends
• Work closely with peers to ensure the team is aligning with cloud native, lean/Agile/DevOps & 12 Factor Application best practices ensuring rapid value delivery and with quality
• Collaborate with other Principal Engineer’s to drive engineering best practices around testing, CI/CD, GitOps, TDD, architectural alignment, and relentless automation
• Excellent understanding and familiarity with Cloud Native and 12 Factor Principles, Microservices, Lean Principles, DevOps, Test Driven Development (TDD), Extreme Programming (XP), Observability / Monitoring

Required Skills:

• B.Tech/MS/PhD in Computer Science or related field, and 3 - 10 years relevant industry experience
• Coding experience in Java
• Extensive hands-on experience working with AWS cloud products and services
• Experience with popular open-source software such as Postgres, RabbitMQ, Elasticsearch, Redis and Couchbase
• Experience working with NodeJS, React/Redux, Docker Swarm, Kubernetes
• Experience with development frameworks such as the Spring/Spring Boot framework, Hibernate and knowledge of advanced SQL
• Proficiency with modern object-oriented languages/frameworks, Terraform, Kubernetes, AWS, Data Streaming
• Knowledge of containers and container orchestration platforms, preferably Kubernetes
• Experience delivering services using distributed architectures: Microservices, SOA, RESTful APIs and data integration architectures
• Knowledge of containers and container orchestration platforms, preferably Kubernetes
• Advanced Architecture and system design skills and principles
• Excellent organizational skills and can drive a cross-team strategic project or initiative
• Solid coaching, mentorship and technical leadership to help others grow
• Able to drive consensus/commitment within and across teams and departments
• Advanced critical thinking and problem solving on complex issues and customer concerns.
• Strategic thinker beyond immediate needs, considering the longer-term
• Excellent communication skills, with ability to communicate highly complex technical concepts
• Demonstrate high level of empathy with internal colleagues, stakeholders and customers

Apply Now!!!

• Technical skills in C# .NET Core, ASP.NET MVC and Entity framework, LINQ and REST APIs
• Additional skills in MySQL and SQL server, Ajax, jQuery, ReactJS, HTML, Javascript, XML
• Have good analytical ability to breakdown problem statements into solutions
• Working knowledge of various development tools like IDE’s (VS2008 or above), source control systems like TFS, Subversion.
• Good at Troubleshooting, problem solving and has supported customers in production environment
• Experience in Test driven development is desirable.
• Strong written and verbal communication skills and the ability to follow verbal/written instructions
• Ability to troubleshoot assigned technical issues and also the ability to meet tight project deadlines
• MUST have experience in major systems development and implementation
• Leading a team would be an added advantage.

Role :

We are building one of the world's best tech platforms for online giving, where we provide opportunities for people to donate to any cause, non-profit or geography that they care about, in the most simple, personalized and effective manner. We scale our impact on the lives of millions of underprivileged people every year through our workplace giving, subscription giving and crowdfunding products.

At Give, we are looking for top-talent for our engineering team - software engineers who want to solve complex problems, continually learn, and most importantly, make a real impact in the lives of others.

Responsibilities :

- Work alongside product to understand our requirements, and design, develop and iterate

- Think through complex architecture to build robust and scalable solutions

- Build well-abstracted modules and services

- Provide design reviews for other engineers, including feedback on architecture and design issues, as well as integration, performance and scalability

- Follow scrum methodology to iterate and deploy fast

- Mentor other team members and colleagues

- Contribute to documentation, process and procedures

Requirements :

- 7+ years of experience

- Expertise in various Javascript frameworks/libraries including, but not limited to NodeJS and React.js

- Advanced knowledge of JavaScript

- Understanding of the fundamental principles of asynchronous code

-The ability to write efficient, scalable, reusable code

- The ability to conceptualize, diagnose, architect, iterate and build systems, sub-systems and services that are complex and enterprise scale

- Advanced knowledge and experience in web and server-side technologies

- Experience in both NoSQL and relational databases (MongoDB, PostgreSQL or similar databases) and an advanced understanding of data modeling

- Experience in one or more OO language like Python/Flask (preferable), Java, Ruby, etc.

- Identity Management and Security (SSL protocols, data encryption, user authentication, authorization services)

- Expertise in Git

- The ability to work across all software platforms at a high level - frontend and backend, server management, CI/CD, administrate third party tools/services/integrations

- An advanced understanding of open source libraries/frameworks and integration with third party

- APIs - with a focus on Payments, Notifications and Analytics

- Advanced knowledge of client/server-side caching mechanisms across multiple layers

- Proven track record of technical leadership, software delivery, ownership and mentorship

- Superb understanding of scalable computing systems, software architecture, data structures and algorithms

- Deep understanding of service-oriented and microservice architectures

- Expertise in AWS and its related services (EC2, S3, RDS, Route53, Elastic Beanstalk and more) or an equivalent cloud provider, Linux and shell scripting

- Knowledge of Nginx, Docker, gunicorn is a plus

- The ability and the experience to proactively account for the edge cases rather than diagnosing them after the fact

We are looking for a Full Stack Developer 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 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. Too familiar with Agile methodologies.

Responsibilities

• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation

Requirements

• Proven experience as a Full Stack Developer or similar role
• Experience developing desktop and mobile applications
• Familiarity with common stacks like LAMP Stack and Mean Stack...
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Knowledge of multiple back-end languages (e.g. PHP, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• An analytical mind
• Degree in Computer Science, Statistics or relevant field