Sr. Java 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

JD-Backend Developer

Job Location: Andheri, Mumbai

Job Summary:

As a Python based Backend developer, you shall be responsible for software development of greenfield projects -an platform

for automated testing using Python as a main language. You will work with a team of developers, collaborating on projects to

create efficient and effective software solutions that meet the needs of clients or end-users in the testing domain. You will

need to have a strong understanding of Python & other languages with knowledge of test automation frameworks and tools/

libraries.

Responsibilities:

• Develop and maintain an automated testing platform using Python programming language.

• Design and implement software solutions that automate the testing process.

• Collaborate with other developers and cross-functional teams to deliver high-quality software solutions.

• Participate in code reviews, debugging, and troubleshooting to improve software quality.

• Stay up-to-date with the latest developments in Python and JavaScript programming language and related

testing frameworks and tools.

• Ensure software is delivered on-time and meets or exceeds customer expectations.

• Develop and maintain documentation related to software development processes and projects.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering or a related field.

• Proven experience as a Back-end Developer.

• Strong understanding of Python & other programming language along with its ecosystem (libraries, frameworks,

tools, etc.).

• Excellent written and verbal communication skills.

Preferences:

• Preference shall be given to local candidates

• Preference shall be given to candidates having experience in greenfield software development projects related

to automated testing.

About Us

Aura is developing a platform to help companies/communities mint, buy, trade and sell NFTs in the easiest manner possible. Developing a state of the art store front customized to the community and a user friendly interface to unlock the digital growth of companies in the gaming, art, music, etc space by leveraging the power of NFTs. We are assembling a high performing team from the tech ecosystem to build this product and compete with the likes of NBA TopShot.

Requirements:

• Integration of user-facing elements developed by a front-end developers with server side logic
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability
• Implementation of security and data protection
• Design and implementation of data storage solutions

Skills and Qualifications:

• 2+ years of experience in Node.js. Basic understanding of front-end technologies and platforms, such as JavaScript, HTML5, and CSS3
• Good understanding of server-side CSS preprocessors, such as LESS and SASS
• Integration of multiple data sources and databases into one system
• Management of hosting environment, including database administration and scaling an application to support load changes
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git
• Proficient understanding of security principles
• Understanding of “session management” in a distributed server environment
• Must have an understanding of SQL and NoSQL databases like Postgres, MySQL, Mongodb etc.
• Must have an understanding of Cloud: AWS or GCP
• Must have a good understanding of data structures and Algorithms

Benefits:

• Work on the cutting edge of blockchain technology and the upcoming use-case of NFTs (Non Fungible Token)
• Be a part of an early stage startup with funding from founders of Polygon

P.S. The website to our company is  https://auranft.co/

You will be building efficient, scalable & high performance microservices and applications which will power the network of thousands of retailers across the country and at the same time improve the efficiency and visibility of information flow in our supply chain systems.

Your core responsibilities:

• Create elegant, efficient and maintainable software to support and extend our current products.
• Solve complex architectural challenges when implementing new features.
• Integrate with databases, file systems, cloud services when delivering scalable solutions.
• Troubleshoot and fix reported customer issues, delivering software patches as needed.
• Assisting in making design decisions based on performance, scalability, security, and future expansion.
• Communicating and collaborating with management, product, QA teams.

What will help you thrive in this role?

• Degree in Computer Science, similar technical field of study or equivalent practical experience.
• 5+ years of experience as a Backend Engineer.
• Proficiency in web development using any of the languages: PHP, Python, Java, NodeJS or Golang.
• Should possess a solid grasp of object-oriented programming, system architecture & design, databases, development, and testing methodologies.
• Good in Design (HLD and LLD).
• Good in Database schema design.
• Good to have experience with AWS or Google Cloud or Azure and serverless architecture.
• Excellent verbal communication skills.
• Track record of delivering successful products as an engineer.
• Experience with large applications of some scale will be a plus.
• Ability to deep dive, understand & improve the legacy code.
• Domain knowledge of supply chain & retail industry is a plus.

Whom you will be sharing your work day with? 

• We are in the forefront of disrupting traditional retail & supply chain industry by building distributed systems
• We are hardcore open source lovers and believe in the strength of open source community.
• We believe technology can change the way information is consumed.
• We use a data driven approach to build new products and features.
• Build new tech solutions to improve business processes and enable our various departments to help service our teams better.
• We embrace and enable DevOps culture within the organisation.

And yes! We do have new furry friends coming to our office everyday.

Work Perks

• Hybrid work environment with flexibility to work from anywhere. 
• A great salary, commensurate with experience.
• Unlimited vacation policy which means Paid Vacations.
• A relaxed & flexible working atmosphere.
• Weekly parties (Unofficial).
• Paid outings to remote work locations and industry events/conferences.
• Paid Health Insurance for you and your loved ones.

• Build large scale enterprise applications.
• Responsible for providing deep technical expertise in designing and delivering end to end high performance, scalable & flexible solutions using Java and Open Stack technologies including Mobility/Responsive Web apps, APIs, application & data Integration, scalable databases, DevOps, Cloud Computing.
• He/ She would be also responsible to experiment, explore and demonstrate application of new technologies by means of conducting quick prototypes to solve business problems. Work with the direction from Solution Architect/ Enterprise Architect and co-create solutions with rest of the IT delivery teams

About the Backend Developer

We are looking at a diligent, driven, passionate person for our efforts on engagement and retention of our customers (schools) in a high growth environment. Backend Developer will be the face of the organisation for the schools that are using the platform on a day to day basis. The Developer will interact with the schools via the chat support and email requests and resolve any issues that the schools might be facing in using the platform or extend any support they might be needing to use the platform to its fullest.

• As a Backend Developer, you will play a major role in, developing and deploying high-quality web platforms. In this multifaceted role, you will get the opportunity to work along curriculum experts, teachers, and students, and user-test the product in real school settings.   
  
  Preferred Qualifications/Skills
  
  * Frameworks & Technologies: Node.js
  * Database: PostgreSQL, SQL
  * Tools: Git basics, Scripting basics
  * Soft Skills: Having a bias towards action, a good sense of design, empathy, and good communication skills 
  * Excellent written and oral communication skills
  * Great interpersonal skills
  
  About Toddle:  ( http://www.toddleapp.com/" target="_blank">www.toddleapp.com )