Oracle Developer

Job Title: Principal Backend Engineer

Experience: 7+ Years

Location: Panchkula (Onsite)

📍 Office will move to IT Park, Chandigarh from February

Work Mode: Onsite | 5 Days a Week

About the Role

We are looking for a Principal Backend Engineer to architect, scale, and lead the development of robust backend systems. This is a hands-on leadership role where you’ll drive technical decisions, mentor engineers, collaborate closely with clients and product teams, and help modernize platforms using scalable architectures and emerging technologies, including AI/ML where relevant.

Tech Stack

• Backend: PHP (Laravel / CodeIgniter), Node.js
• Databases: MySQL, MongoDB
• Architecture: Microservices / Modular Monolith
• Cloud (Good to Have): AWS / GCP

Key Responsibilities

Backend Architecture & Development

• Own and evolve backend architecture across PHP and Node.js services
• Design and review scalable, maintainable systems (microservices or modular monoliths)
• Manage and optimize integrations across MySQL and MongoDB (data modeling, indexing, performance tuning)

Technical Leadership

• Lead system design discussions, architecture reviews, and code quality initiatives
• Establish backend development standards, best practices, and documentation
• Mentor mid and senior engineers on design patterns, testing strategies, and CI/CD pipelines
• Drive decisions around refactoring legacy systems and platform modernization

Client & Stakeholder Communication

• Act as the technical SPOC for backend architecture and integrations
• Translate business and product requirements into technical solutions
• Explain trade-offs, constraints, and backend workflows to non-technical stakeholders
• Present PoCs and technical approaches confidently to clients

AI & ML Integration (Strategic / Optional)

• Identify backend use cases for AI such as personalization, recommendations, fraud detection, or data enrichment
• Design backend APIs, services, or cron jobs that interact with AI/ML models
• Collaborate with data teams and stay updated on AI tools/APIs (e.g., OpenAI, LangChain)

Scalability, Security & Performance

• Ensure API security, role-based access control, and rate limiting
• Optimize system performance using caching, queues, and query optimization
• Plan and support horizontal/vertical scaling on cloud infrastructure

What We’re Looking For

• 8+ years of backend development experience in PHP and/or Node.js
• Strong expertise in database design (MySQL & MongoDB)
• Proven experience leading architecture decisions and mentoring engineers
• Ability to clearly communicate technical concepts to clients and stakeholders
• Proactive mindset toward scalability, performance, and system resilience
• Bonus: Experience or curiosity around AI APIs and real-world AI integration

Why Join uEngage?

• Work on high-impact systems used by thousands of users
• Collaborate with product, design, data, and client teams
• High ownership and freedom to architect and innovate
• Competitive compensation and a collaborative work culture

Job Description:

• Work primarily with PHP, object-oriented design, Unit testing techniques, debugging techniques, HTTP, MySQL and Apache.
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
• Must possess a strong understanding of Object-Oriented technology.
• Understand the specifications to define system requirements.5

Key Responsibilities:

• Rewrite existing APIs in NodeJS.
• Remodel the APIs into Micro services-based architecture.
• Implement a caching layer wherever possible.
• Optimize the API for high performance and scalability.
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required:

1. At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
2. Excellent hands-on experience using MySQL or any other SQL Database.
3. Good knowledge of MongoDB or any other NoSQL Database.
4. Good knowledge of Redis, its data types, and their use cases.
5. Experience with graph-based databases like GraphQL and Neo4j.
6. Experience developing and deploying REST APIs.
7. Good knowledge of Unit Testing and available Test Frameworks.
8. Good understanding of advanced JS libraries and frameworks.
9. Experience with Web sockets, Service Workers, and Web Push Notifications.
10. Familiar with NodeJS profiling tools.
11. Proficient understanding of code versioning tools such as Git.
12. Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
13. Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
14. Experience building a large scale social or location-based app.

• Support existing code of PHP webserver
• Proficient in PHP, JavaScript, jQuery, HTML, and MySQL
• Hands-on any PHP-based framework/CMS like Laravel, CakePHP, Zend, CodeIgnitor, Yii.
• Must write efficient code with documentation.
• Any Database: MySQL, MongoDB, NoSQL DBs, postgresql.
• Has experience debugging code.
• Analysis of current DB structure and change table structures as and when required
• Implementation of visual representation of DB data in the form of charts and graphs
• The eventual implementation of a new UI theme with customizations such as drop-down menu data, as well as linking the UI theme front-end with the back-end MySQL
• Implementation of new PHP web services for functions such as analytics, and new modules to existing services
• Ensure cross-platform compatibility of information retrieved from web services on
• Android and iOS platforms, in terms of Push Notifications, platform-specific issues, etc.
• Implementation of SSL security to all web services, logins, and API calls
• Familiar with XMPP would be a plus point.

- 2+ years experience in application support on Asp.Net and SQL

- Should be able to debug production issues and bug fixes

- Should be able to write queries for extracting data using joins

- Interact with stakeholders and provide regular status updates on call logs to on-site and offshore project co-coordinator

- Provide daily status updates and time-sheets to on-site and offshore project

- Ready to work in shifts

- Knowledge Transfer / Training to stakeholders

- Good communication skills

- Highly committed and able to work independently and as a team

- Positive attitude towards learning

- Deadline orientated and escalate in advance in case of delays 

- Contribute towards improving quality, standardization and documentation for all 

changes & Support activity

- Ability to remain calm in a fast-paced and highly pressure environment