Out of many tools and technologies, we use Java, MongoDb, Cassandra, Redis, Twem, Netty extensively for our back-end development.
- Leading the entire Backend platform for a product portfolio.
- End to end delivery new features.
- Evolving the architecture for performance and scalability.
- Design, develop and own components of a highly scalable, distributed web services platform.
- Constantly strive to improve software development process and team productivity.
- Mentor and train team members
- Lead module development independently
Required background, Knowledge, Skills and Abilities
- 5.5+/ 7+ Years of experience in a scalable product/ecommerce organization·
- Excellent Java skills, Understanding of Spring framework & MVC approach
- Strong knowledge of Performance optimization and caching techniques.
- Strong Object Oriented Programming concepts, data structure and algorithms
- Experience in developing scalable, fault-tolerant, distributed backend services
- Experience with prevalent design patterns and advanced system designing
- Good experiences with databases and Schema design. We heavily use NoSQL databases
- Strong Problem Solving skills

About Airtel Xlabs
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Job Title : Lead Java Developer (Backend)
Experience Required : 8 to 15 Years
Open Positions : 5
Location : Any major metro city (Bengaluru, Pune, Chennai, Kolkata, Hyderabad)
Work Mode : Open to Remote / Hybrid / Onsite
Notice Period : Immediate Joiner/30 Days or Less
About the Role :
- We are looking for experienced Lead Java Developers who bring not only strong backend development skills but also a product-oriented mindset and leadership capability.
- This is an opportunity to be part of high-impact digital transformation initiatives that go beyond writing code—you’ll help shape future-ready platforms and drive meaningful change.
- This role is embedded within a forward-thinking digital engineering team that thrives on co-innovation, lean delivery, and end-to-end ownership of platforms and products.
Key Responsibilities :
- Design, develop, and implement scalable backend systems using Java and Spring Boot.
- Collaborate with product managers, designers, and engineers to build intuitive and reliable digital products.
- Advocate and implement engineering best practices : SOLID principles, OOP, clean code, CI/CD, TDD/BDD.
- Lead Agile-based development cycles with a focus on speed, quality, and customer outcomes.
- Guide and mentor team members, fostering technical excellence and ownership.
- Utilize cloud platforms and DevOps tools to ensure performance and reliability of applications.
What We’re Looking For :
- Proven experience in Java backend development (Spring Boot, Microservices).
- 8+ Years of hands-on engineering experience with at least 2+ years in a Lead role.
- Familiarity with cloud platforms such as AWS, Azure, or GCP.
- Good understanding of containerization and orchestration tools like Docker and Kubernetes.
- Exposure to DevOps and Infrastructure as Code practices.
- Strong problem-solving skills and the ability to design solutions from first principles.
- Prior experience in product-based or startup environments is a big plus.
Ideal Candidate Profile :
- A tech enthusiast with a passion for clean code and scalable architecture.
- Someone who thrives in collaborative, transparent, and feedback-driven environments.
- A leader who takes ownership beyond individual deliverables to drive overall team and project success.
Interview Process
- Initial Technical Screening (via platform partner)
- Technical Interview with Engineering Team
- Client-facing Final Round
Additional Info :
- Targeting profiles from product/startup backgrounds.
- Strong preference for candidates with under 1 month of notice period.
- Interviews will be fast-tracked for qualified profiles.

Software Architect
Bangalore, India / Engineering/ Full-time
Job Overview:
As a Software Architect, you will play a crucial role in designing, developing, and maintaining robust and scalable backend solutions for our software applications. You will be responsible for making strategic technical decisions, and collaborating with cross-functional teams to ensure the successful delivery of high-quality software products with scalable backend infrastructure.
Responsibilities:
- System Architecture:
- Design and architect scalable, efficient, and maintainable backend systems.
- Collaborate with cross-functional teams to understand business requirements and translate them into technical specifications.
- Technical Leadership:
- Provide technical leadership and guidance to the development team, ensuring best practices and coding standards are followed.
- Mentor and coach team members, fostering a culture of continuous learning and improvement.
- Backend Development:
- Lead the development of backend components, modules, and features primarily on Ruby on Rails tech stack and also be open to contribute in other tech stacks based on Java/Kotlin and Python.
- Implement and maintain APIs, data models, and database structures to support application functionality.
- Performance Optimization:
- Identify and address performance bottlenecks, ensuring optimal system response times and resource utilization.
- Implement caching strategies and other performance optimization techniques.
- Collaboration:
- Collaborate with frontend developers, product managers, and other stakeholders to integrate frontend and backend components seamlessly.
- Participate in code reviews to ensure code quality, adherence to standards, and knowledge sharing within the team.
- Security and Compliance:
- Implement and enforce security best practices to safeguard sensitive data.
- Stay updated on industry trends and emerging technologies to ensure compliance and security standards are met.
- Documentation:
- Create and maintain comprehensive technical documentation for the backend architecture, APIs, and development processes.
- Continuous Improvement:
- Proactively identify opportunities for process improvement and contribute to the evolution of development methodologies and practices.
Qualifications:
- Overall 10+ years of experience, with 2+ years as a Software Architect with a focus on backend development using Ruby on Rails.
- In-depth knowledge of Ruby on Rails framework, database design, and API development.
- Strong understanding of software architecture principles, design patterns, and best practices.
- Experience with performance optimization, scalability, and security considerations.
- Excellent communication and collaboration skills.
- Leadership experience with a demonstrated ability to mentor and guide development teams.
- Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent work experience).
Bonus points:
- Familiarity with front-end technologies and frameworks(ReactJs).
- Experience with other programming languages.(Kotlin/Python)
- Experience with cloud platforms and microservices architecture.
- Knowledge of DevOps practices and tools.(AWS, Kubernetes, )
Join us in revolutionizing the way software solutions are developed, and contribute to building cutting-edge applications that make a positive impact on our users and the industry.
Skill: Java Developer – Mumbai
Job Description:
4.5 -8 years of Experience
- Java 8
- Spring boot
- API development
- MVC architecture
- web services
- OOPS
Type, Location,
Full Time @ Anywhere in India
Desired Experience
3+ years
Job Description
What You’ll Do
- Architecting and implementing the solutions we build
- Working with the team, client and project manager to efficiently deliver projects
- Translating business needs to technical solutions and communicating with the client
- Ensuring that good programming practices are followed
- Supporting other engineers’ growth with your expertise and mentorship
- Taking part in internal initiatives such as performance reviews, technical recruitment, estimation of pre-sale projects
What you bring to the table
- 2+ years of experience in Spring boot Framework
- Experience with REST- JSON, SOAP/XML is mandatory
- Proven working experience in Java development
- Experienced in Server Side Java, J2EE, Servlets, Spring/Spring boot, Hibernate JAXB, JAX-WS, MySQL/PostgreSQL, Junit
- Knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate).
- Hands-on experience in designing and developing applications using Java EE
- Platforms with Open Source Frameworks - Spring/Spring boot, XML, Integration with SOAP and RESTful Web Services, WS security.
- Experience with test-driven development
- Experience with GIT and Maven.
- Experience with Spring Security.
Overview of the role
As a Node Developer you will be collaborate with cross-functional teams to define, design and build performant modern web applications and services. Build high-quality web applications and services by writing clean and modular code.
Must have skills
- Overall 3-5 Years of experience in writing unit and integration tests to ensure the robustness and reliability of web applications and services.
- Measure and improve the performance of microservices. Catalyse growth within the team through code reviews and pair programming to maintain high development standards
- Investigate operational issues to find the root cause and propose improvements Design, build, and maintain APIs, services, and systems across Stripe’s engineering teams.
- Expert level of experience in the design and development of Web Applications, and highly scalable distributed systems.
- Should have experience in development skills using the latest technologies including NodeJS(fastify framework), Microservices, PostgreSQL, Redis, etc. Should have exposure to NoSQL and SQL development.
- Comprehensive knowledge of physical and logical data modeling, and performance tuning.
- Should possess excellent communication, presentation, and interpersonal skills.
- Ability to work collaboratively and productively with globally dispersed teams.
- Build high-performance teams and Coach teams for successful career growth.
- Experience working with relational and non-relational databases, query optimization, and designing schema
Desired Background
Bachelors/Masters Degree in Computer Science, Information Technology

Job Description:
As a L3 analyst, you will play a key role within the Application Management team, leading services for its customer(s). This service has responsibility for the smooth daily operational running of the Client platform both in the cloud and on-premises. The Client application is business critical and centrally manages data for trading, settlement, risk, client and regulatory reporting systems. As a L3 analyst, you will be responsible for supporting complex infrastructure and application issues raised by L1/L2 support teams, and business analysts. You would also be working on client requests for enhancements, fixes, maintaining custom code, and following the best practices such as Agile, DevOps, etc.
The role is a technical role requiring a good technical knowledge of SQL/PLSQ, Core Java along with good debugging skill while supporting client implementations. You should have basic understanding on Unix system and commands. The ability to troubleshoot issues, assist users and help write specifications is essential. This position also works with product management to improve the software engineering processes and practices associated with continuously building, deploying, and updating software and environments.
- Accountability and primary responsibility/duties:
- A typical day would look like as follows: -
- 40% support issues.
- 40% configuration/development work.
- 20% continuous improvement, automation, CICD, so on.
- Activities would range across the lifecycle from discovery to post-implementation support.
- Understanding client’s requirement, replicate the problem and providing the solution
- Understanding and developing new requirements coming in from BAs (Business Analysts) and customers.
- Update the existing functionality based on client needs.
- Develop changes that cater to enhancing the product and/or fixing production issues
- Prepare product releases of software components. (Java/SQL-PLSQL)
- Contribute in all phases of the development cycle. (development/Deployment/Testing, peer review)
- Create technical document for all changes made.
Required Qualifications/Knowledge/Skills
- Bachelor’s degree in Computer Science or related field
- Strong basics and working experience in following technologies: -
- Core Java.
- SQL / PLSQL coding.
- Object Oriented Programming concepts and data structures.
- Working knowledge on Unix platform
- Working knowledge on XSLT and XML handling
- Basic understanding App & web server working knowledge (JBOSS, WebLogic and WebSphere) and debugging skills.
- Advantageous to have:
- Working understanding on CICD, Dev-ops technologies.
- Queuing technologies including Kafka, MQ, Solace.
- Scripting including Python, Unix, java.
- Hands on knowledge of Dev ops processes and tools Good interpersonal and communication skills.
• Build the front-end of the application in Liferay
• Develop and manage well-functioning databases and backend applications using Liferay
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and fix issues
• Write technical documentation
• Manage VM instances on the cloud
Skills:
• Self-driven, flexible, and innovative with Outstanding analytical, problem-solving, and
communication skills
• Understanding of fundamental design principles for building a scalable application
• Strong knowledge and experience of Java, Liferay and JBPM
• Technical Skills:
• Languages
o Java
o Javascript
o jQuery
o ANSI -SQL
• Frameworks/Libraries/Servers
o Liferay 6.2X
o JBPM 3.x
o Tomcat 7
o Databases
o MYSQL Server
JOB DESCRIPTION – JAVA & JBPM - Q21.D.JAVA005
Quadwave Consulting Private Limited | 2
• OS
o Linux (Ubntu/CentOS)
Qualifications:
• Minimum 4 years of experience in full-stack development of Liferay based portal application
• Minimum 3 years of experience to develop applications using JBPM
• 4-7 years of experience in Java, HTML, Javascript
• Hands-on experience in working with MySQL
• Bachelor’s Degree or equivalent experience
- Working knowledge of Node-Sync, callback hell and ways to control asynchronous behavior of Node functions.
- Strong command on ES6(EcmaScript) or Javascript and its concepts like prototypes, call back, closures etc
- Should have deep understanding of Native Node.js, Express.js, HAPI.js and middlewares.
- Candidates must have proper understanding and command on RESTful API development and consumptions.
- Candidates must know to use promises, async-await to control synchronization of business logic components.
- Candidates must have knowledge of JWT, oAuth and passport.js for user authentication.
- Candidates must have knowledge of GIT, Bit-bucket.
- Candidates must have knowledge of application deployment.
- Experience with NoSQL databases eg mongodb (preferred).

About MoEngage
MoEngage is a fast-paced startup that’s helping companies run smart marketing efforts in their effort to reach the customer. We are a leading Marketing Technology Stack provider that is helping brands redefine their customer engagement in the mobile era. Brands use MoEngage to drive long-term, personalised and context-based engagement across channels to help achieve increased customer retention as well as customer LTV. Sitting at a conflux of diverse technologies like Artificial Intelligence, Big Data, Web & Mobile platforms, MoEngage technology analyses billions of data points generated by customers and their devices, to predict customer behavior and build marketing campaigns that proactively engage users.
In just four years since inception, MoEngage is working with leading brands across e-commerce, entertainment, travel, publishing and banking domains among others. With marquee clients like Vodafone, Oyo, Airtel, McAfee, MoEngage has over 125+ paying Customers in the Enterprise & Internet companies space in India, US, South East Asia & EU. With a global presence spanning 35 countries, MoEngage has offices in San Francisco, Berlin, Jakarta, and Bengaluru.
Today, MoEngage is an industry pioneer in the space and engages more than 350M devices. This includes approximately 40B events tracked per month, 30B+ messages sent, to millions of users across the globe.
As part of the Engineering team at MoEngage, here are some things you can expect:
- Take ownership and be responsible for what you build - no micro management
- Work with A players (some of the best talent in the country), and expedite your learning curve and career growth
- Make in India and build for the world at scale of 350M active users, which no other internet company in the country has seen
- Learn together from different teams on how they scale to millions of users and billions of messages.
- Explore the latest in topics like Data Pipeline, MongoDB, ElasticSearch, Kafka, Spark, Samza and share with the team
and more importantly have fun while you work on scaling MoEngage.
About Push team,
Push team is one of the core teams at MoEngage, responsible for sending close to a billion notifications everyday to help clients engage their users better. As a member of the Push team, you will be working on developing high performance solutions to deliver personalised and context-based notifications across various channels to help achieve increased customer retention as well as customer LTV. You will also be working on designing and building features to help clients to provide customised experience for end users allowing them to have a more personalised experience at scale. Here you will have a chance to own systems and develop features end to end i.e right from inception to deployment. Though we work at scale, reliability is of utmost importance for us and we build in house solutions like Campaign Watcher & AutoBatchRunner to ensure 100% transparency and delivery of notifications
- Scaling campaign sending system to ensure industry leading delivery times (40 Million notifications under 2 minutes)
- Rich campaign content delivery and templating support
- Build and develop features to have appealing and consistent experiences across channels which touch 200+ customers and 200+ million users!
Skill Requirements
- Proven experience in handling large infrastructure and distributed systems
- Familiarity with Python related technologies and frameworks like Django or Pyramid.
- Familiarity with at least one of the cloud computing infrastructure - GCP / Azure / AWS
- Familiarity with task queue frameworks like Celery or Pika is a plus.
- Tech Stack - Python, Falcon, Elastic Search, MongoDB, AWS (SQS S3), Linux, Map Reduce

