Fullstack Developer

As a Senior Software Developer at Quantiphi, you will be responsible for designing, developing, and modernizing enterprise-grade applications using the Microsoft .NET ecosystem. You will work closely with stakeholders to gather requirements, build scalable and secure solutions, lead cloud migration initiatives, and mentor engineering teams while ensuring high standards of software quality and performance.

Key Responsibilities

Application Development & Architecture

• Design, develop, and maintain enterprise applications using C#, .NET Core, and ASP.NET Core.
• Build and maintain RESTful APIs using ASP.NET Core.
• Implement scalable, maintainable, and testable solutions following:
• Clean Architecture
• Hexagonal Architecture
• Domain-Driven Design (DDD)
• Apply design patterns including:
• Repository Pattern
• Factory Pattern
• Strategy Pattern
• CQRS
• Dependency Injection

Modernization & Cloud Migration

• Lead application modernization initiatives from on-premises environments to cloud platforms.
• Assess legacy .NET Framework applications and define migration strategies to .NET 6 / .NET 8.
• Transform monolithic applications into modular or microservices-based architectures.
• Conduct application discovery, dependency analysis, and proof-of-concept (POC) activities.
• Create migration roadmaps, rollback plans, and risk mitigation strategies.

Cloud & Containerization

• Design, deploy, and manage applications on AWS Cloud.
• Develop containerized solutions using Docker and Kubernetes.
• Build and maintain automated CI/CD pipelines.
• Implement cloud-native deployment and infrastructure automation practices.

Performance & Scalability

• Design highly scalable systems capable of handling millions of requests and high transaction volumes.
• Optimize application performance through:
• Caching
• Connection Pooling
• Asynchronous Processing
• Database Optimization
• Identify and resolve performance bottlenecks across application, database, and infrastructure layers.
• Implement distributed caching and scalable architectural patterns.

Security & Identity Management

• Implement authentication and authorization using:
• JWT
• OAuth2
• OpenID Connect
• Apply security best practices including:
• HTTPS
• Secure Headers
• Secret Management
• Input Validation
• Ensure compliance with enterprise security and governance standards.

DevOps & Observability

• Establish comprehensive testing strategies:
• Unit Testing
• Integration Testing
• Contract Testing
• End-to-End Testing
• Build and maintain CI/CD pipelines using GitHub Actions, Jenkins, or similar tools.
• Implement monitoring, logging, distributed tracing, and alerting solutions.
• Ensure application reliability, availability, and operational excellence.

Leadership & Collaboration

• Mentor and guide junior and mid-level developers.
• Drive technical decisions and architecture reviews.
• Collaborate with product owners, architects, business stakeholders, and engineering teams.
• Manage technical debt and promote engineering best practices.

Required Technical Skills

Languages & Frameworks

• C#
• .NET Framework 4.x
• .NET 6 / .NET 8
• ASP.NET MVC
• ASP.NET Core MVC

Data Technologies

• SQL Server
• Entity Framework Core
• LINQ
• ADO.NET

Cloud & DevOps

• AWS:
• EC2
• S3
• RDS
• DynamoDB
• ECS
• EKS
• Lambda
• IAM
• VPC
• CloudFormation
• CDK.NET
• AWS SDK for .NET
• Docker
• Kubernetes
• GitHub Actions
• Jenkins
• CI/CD Pipelines

Security

• JWT
• OAuth2
• OpenID Connect
• Identity Providers (IdPs)

Architecture & Design

• Clean Architecture
• Hexagonal Architecture
• CQRS
• Microservices
• Domain-Driven Design (DDD)
• Event-Driven Architecture

Preferred Experience

• 8+ years of software development experience.
• Hands-on experience in cloud migration and modernization projects.
• Experience building enterprise-scale distributed systems and microservices.
• Strong understanding of software architecture, security, and DevOps practices.
• Proven experience leading technical initiatives and mentoring development teams.

We’re hiring a hands-on Full-Stack Developer to join as our first technical hire and help turn our operational edge into scalable software. You’ll work directly with the founding team to:

* Build internal and guest-facing tools in React

* Develop a Node.js backend to power core workflows

* Integrate with property management software APIs (e.g., Guesty, Hostaway, Airbnb)

* Implement and extend functionality using AI APIs like OpenAI (required)

Our Stack

* Frontend: React

* Backend: Node.js (Express or similar)

* Database: MongoDB or Postgres

* APIs: REST/GraphQL, PMS integrations

* AI: OpenAI API and related services

Must-Have Skills

* 2+ years of full-stack development experience

* Strong proficiency in React and Node.js

* Demonstrated experience integrating external APIs (especially SaaS or PMS platforms)

* Familiarity working with OpenAI or other AI APIs

* Ability to work independently and ship quickly

Nice to Have

* Background in hospitality, rentals, or operational software

* Experience building dashboards or guest lifecycle tools

* Bonus: Prior experience with Guesty, Hostaway, or PMS APIs

We are looking for a Java Application Developer with a minimum of 2 years of experience.

Must have experience in the Retail domain.

Java, Springboot, MVC, JSP, Postgres SQL and Oracle Skills are required.

AWS knowledge is a plus.

Should be willing to travel to the client's location whenever required.

ROLES AND RESPONSIBILITIES:

·       Working with technical architects, able to convert the architecture into design and code in Java (Spring Boot), AngularJS, and NodeJS.

·       Able to generate LLD documents.

·       Ability to write Quality code with minimum defects.

·       Unit Test and following the coding standards.

·        

PREFERRED QUALIFICATION AND SKILLS:

·       5+ years strong programming and logical skills in Java (Spring Boot), AngularJS, Object Oriented Java script, NodeJS and HTML5

·       Hands on Experience on Java (Spring Boot), and MySQL is mandatory. Must have completed at least 2 full projects using Spring boot and AngularJS.

·       Excellent knowledge and experience in Spring JPA, RESTful webservices implementation.

·       NodeJS experience is value add

·       Should have participated in, and be familiar with, Agile (Scrum) project methodology and practices.

·       Must be able to mentor and guide junior technical resources.

·       One who is proactive and come forward with technology related initiatives. Motivated self-starter. 

·       Good Communication skills. English - Oral and Written.

Job description

• Hands-on experience in C#, http://asp.net/">ASP.NET, MVC, Web API, SQL Server.
• Experience in latest .Net framework versions (4/4.5/.Net Core 2.0 Frameworks), SQL Server 2008/2012.
• Experience in OOPS, HTML5, Bootstrap,CSS, AJAX/ JavaScript/ JQuery/ AngularJS and Angular 2.0 and web development.
• Excellent communication, analytical and interpersonal skills.
• .NET Full Stack (C#, MVC / .Net Core, WEB API, JSON, REST, JavaScript, Ajax)
• Good knowledge on Angular development, Angular JS
• knowledge in Azure cloud solutions.
• Developing and Hosting REST API Swagger and integration with angular.

Required Candidate profile Qualifications

• 5 – 8 years and above of professional software development experience.
• Improving system quality by identifying issues and common patterns and developing standard operating procedures.
• Enhancing applications by identifying opportunities for improvement, making recommendation and designing and implementing systems.

•  Worked on Angular 4 and above.

•  Develop, test, and deploy fast and scalable web apps
•  Designing and maintenance of fully functional large relational and
• non-relational databases
•  Server management and cloud-based infrastructure
•  Identification of application issues when deploying the apps
• App deployment on the cloud along with solving debugging issues
•  Coding architecture for frontend and backend
•  Collaboration with IT team, researchers, designers for designing robust apps and
• encouraging business goals
•  Creating features in apps that have a mobile responsive design
•  Testing applications and fixing bugs, along with security and data protection features
•  Establish code architecture decisions for supporting scalability and good features
•  Makes use of popular front-end frameworks like Bootstrap, LESS, etc and
• design UI components
•  Participation with developers for the creation of scalable RESTful APIs.
•  Conducting code reviews of peer developers.MUST HAVE:
•  Worked on Angular 4 and above.

Responsibilities:

• Concepting, creating, and building websites alongside our graphic design team, including taking designer wireframes and magically turning them into effective code.
• Working through the website development lifecycle to launch.
  Designing user-based interactions through an effective front-end architecture framework.
• Developing functional databases, applications, and servers to support our websites on the back end.
• Developing and designing RESTful services and APIs.
• Determining application responsiveness for consumers.
• Troubleshooting issues and problem-solving as necessary.
• Keeping current with industry trends and developments that can be applied to company needs.

Requirements:

• Bachelor’s Degree in Computer Science.
• Expertise with MEAN stack
• Fluent in CSS (Foundation or Bootstrap), JavaScript, and HTML, with an understanding of CSS preprocessors including Sass and LESS.
• Strong knowledge of Linux, JavaScript, and MongoDB with working knowledge of SQL Database and PHP.
• Experience with JS-based tools including Bower, Grunt, and Gulp.
• Working experience as a Full Stack Developer.
• Experience working with server technologies including Apache, ISS, Node.js, and Nginx.
• Experience in API design and development.
• Understanding of libraries including Backbone.js and jQuery.
• Experience with Docker, AWS, CI/CD, Jira is a plus.
• Strong knowledge of data structures, system design, and algorithms.
• Excellent communication skills, with strong attention to detail and a head for problem-solving.
• Skilled at working in tandem with a team, or unsupervised as required.

Who are we?

We are a venture capital-backed software development company headquartered in Canada. We develop in-house products to disrupt one industry at a time and partner as a technology service provider to selected startups.

Who are you?

Experience in writing applications using Nodejs including Express or similar.
Must be good in MySQL or one of the databases such as Mongo.
Proficient in Javascript and good experience and knowledge of open source tools, frameworks, broader cutting-edge technologies around server-side development.
Excellent data structure, algorithm, and problem-solving skills.
Created and consumed various APIs in the past.
Should be an active contributor to developer communities like Stack Overflow, GitHub, Google Developer Groups (GDGs).
Customer-focused, react well to changes, work with teams, and able to multi-task.
Must be a proven performer and team player that enjoys challenging assignments in a high-energy, fast-growing, and start-up workplace.
Must be a self-starter who can work well with minimal guidance and in a fluid environment.

Some of the technologies we use are:
NodeJS
ExpressJS
Angular 9
AWS
Github
PSQL, MongoDB
Selenium