Senior Java Developer

Role Overview

We are hiring a Principal Datacenter Backend Developer to architect and build highly scalable, reliable backend platforms for modern data centers. This role owns control-plane and data-plane services powering orchestration, monitoring, automation, and operational intelligence across large-scale on-prem, hybrid, and cloud data center environments.

This is a hands-on principal IC role with strong architectural ownership and technical leadership responsibilities.

Key Responsibilities

• Own end-to-end backend architecture for datacenter platforms (orchestration, monitoring, DCIM, automation).
• Design and build high-availability distributed systems at scale.
• Develop backend services using Java (Spring Boot / Micronaut / Quarkus) and/or Python (FastAPI / Flask / Django).
• Build microservices for resource orchestration, telemetry ingestion, capacity and asset management.
• Design REST/gRPC APIs and event-driven systems.
• Drive performance optimization, scalability, and reliability best practices.
• Embed SRE principles, observability, and security-by-design.
• Mentor senior engineers and influence technical roadmap decisions.

Required Skills

• Strong hands-on experience in Java and/or Python.
• Deep understanding of distributed systems and microservices.
• Experience with Kubernetes, Docker, CI/CD, and cloud-native deployments.
• Databases: PostgreSQL/MySQL, NoSQL, time-series data.
• Messaging systems: Kafka / Pulsar / RabbitMQ.
• Observability tools: Prometheus, Grafana, ELK/OpenSearch.
• Secure backend design (OAuth2, RBAC, audit logging).

Nice to Have

• Experience with DCIM, NMS, or infrastructure automation platforms.
• Exposure to hyperscale or colocation data centers.
• AI/ML-based monitoring or capacity planning experience.

Why Join

• Architect mission-critical platforms for large-scale data centers.
• High-impact principal role with deep technical ownership.
• Work on complex, real-world distributed systems problems.

About this roleWe are seeking an experienced MongoDB Developer/DBA who will be

responsible for maintaining MongoDB databases while optimizing performance, security, and

the availability of MongoDB clusters. As a key member of our team, you’ll play a crucial role in

ensuring our data infrastructure runs smoothly.

You'll have the following responsibilities

 Maintain and Configure MongoDB Instances - Responsible for build, design, deploy,

maintain, and lead the MongoDB Atlas infrastructure. Keep clear documentation of the

database setup and architecture.

 Ownership of governance, defining and enforcing policies in MongoDB Atlas.Provide

consultancy in drawing the design and infrastructure (MongoDB Atlas) for use case.

 Service and Governance wrap will be in place to restrict over provisioning for server size,

number of clusters per project and scaling through MongoDB Atlas

 Gathering and documenting detailed business requirements applicable to the data

layer.Responsible for designing, configuring and managing MongoDB on Atlas.

 Design, develop, test, document, and deploy high-quality technical solutions on the

MongoDB Atlas platform based on industry best practices to solve business needs.

Resolves technical issues raised by the team and/or customer and manages escalations as

required.

 Migrate data from on-premise MongoDB and RDBMS to MongoDB AtlasCommunicate

and collaborate with other technical resources and customers in providing timely updates

on status of deliverables, shedding light on technical issues, and obtaining buy-in on

creative solutions.

 Write procedures for backup and disaster recovery.

You'll have the following skills & experience

 Excellent analytical, diagnostic skills, and problem-solving skills

 Should understand the Database concept and develop expertise in designing and

developing NoSQL databases such as MongoDB

 MongoDB query operation, import and export operation in database

 Experience in ETL methodology for performing Data Migration, Extraction,

Transformation, Data Profiling and Loading

 Migrating database by ETL, migrating database by manual process and designing,

development, implementation

 General networking skills, especially in the context of a public cloud (e.g. AWS – VPC,

subnets, routing tables, nat / internet gateways, dns, security groups)

 Experience using Terraform as an IaC tool for setting up infrastructure on AWS

CloudPerforming database backups and recovery

 Competence in at least one of the following languages (in no particular order): Java, C++,

C#, Python, Node.js (JavaScript), Ruby, Perl, Scala, Go

 Excellent communication skills, often being able to compromise but draw out risks and

constraints associated with solutions. Be able to work independently and collaborate with

other teams

 Proficiency in configuring schema and MongoDB data modeling.

 Strong understanding of SQL and NoSQL databases.

 Comfortable with MongoDB syntax.

 Experience with database security management.

 Performance Optimization - Ensure databases achieve maximum performance and

availability. Design effective indexing strategies.

• 4- 10 years of experience in Java Developer
• Programming experience in Java Spring Boot, Springboot
• Strong understanding of Data Structures and Algorithms
• API-Driven Development - Solid experience in RESTful , and Microservices development
• Experience in working with one of the concurrency frameworks like Mono,
• Experience working in ORM frameworks like Entity, Hibernate, Dapper
• Strong relational database experience in either Oracle, MS SQL, or Postgres
• Knowledge on frontend technologies such as JavaScript, HTML, CSS, and modern JavaScript frameworks (React, Angular, etc.).

Shift: 11 am to 8 pm

Hands on skills on the following technologies:

• Kafka Streams
• CassandraDB
• MS SQL SERVER
• Liquibase
• Maven, GIT, JUNITS

Mandatory skills:

• Java 17
• Spring Boot
• Spring Cloud
• Spring JPA
• Apache Kafka
• Microservices

We are seeking an experienced Java Developer to join our team. The successful candidate will be responsible for designing, developing, and maintaining Java-based applications. As a Java Developer, you will work closely with project managers, business analysts, and other members of the development team to create high-quality software that meets our clients' needs.

Responsibilities:

• Design, develop and maintain Java-based applications
• Collaborate with cross-functional teams to identify, prioritize and execute tasks
• Participate in code and design reviews to maintain code quality and ensure that the software is consistent with established standards
• Ensure timely delivery of high-quality software by following agile development methodologies
• Provide technical guidance and mentorship to junior developers

Requirements:

• Strong knowledge of Java and object-oriented programming principles
• Experience with Java frameworks such as Spring, Hibernate, Struts
• Experience with web development technologies such as HTML, CSS, JavaScript, and AJAX
• Familiarity with relational databases such as MySQL, Oracle, or PostgreSQL
• Understanding of software development methodologies, such as Agile, Scrum, and Waterfall
• Excellent problem-solving and analytical skills
• Strong written and verbal communication skills
• Bachelor's or Master's degree in Computer Science or a related field

If you are passionate about Java development and are looking for a challenging and rewarding opportunity to grow your skills and career, we encourage you to apply for this position.

Roles & Responsibilities

As a member of our fast-growing engineering team, your responsibility will be to get involved in day-to-day development operations and solve complex problems of digitization to meet the demands of business.

To be successful, you must have a self-driven mindset, go getter attitude.

The responsibilities include:

• Writing the clean quality code & Understanding functional requirements thoroughly and analyzing the requirements in the context of the product
• Envisioning the overall solution for defined functional and non-functional requirements, and being able to define technologies, patterns and frameworks
• Determining and implementing design methodologies and tool sets
• Enabling application development by coordinating requirements, schedules, and activities
• Being able to lead/support UAT and production roll outs
• Creating, understanding and validating estimated effort for given module/task, and being able to justify it
• Addressing issues promptly, responding positively to setbacks and challenges with a mindset of continuous improvement
• Giving constructive feedback to the team members and setting clear expectations
• Helping the team in troubleshooting and resolving complex bugs
• Coming up with solutions to any issue that is raised during code/design review and being able to justify the decision taken
• Carrying out POCs to make sure that suggested design/technologies meet the requirements
• Carrying out DevOps activities which includes creating Jenkins pipeline

Key Skills

Should possess hands-on full life-cycle development experience (architect, design, code, test, release) be comfortable around both front-end and back-end coding languages, client/server-side development frameworks and third-party libraries.

• Should be strong in data structures and algorithms. Solid understanding of object-oriented programming
• Work with cutting edge technologies like Java 8, Scala, React, Akka, Docker, Puppet, and Salt
• Hands-on knowledge of Spring core, MVC, JPA. Working knowledge of Spring Boot
• Should have strong hands-on on one of the JavaScript frameworks: jQuery, AngularJS, ReactJS, and Vue.js.
• Willing to working with latest Cloud and Container technologies like AWS
• Experience with both external and embedded databases. NoSQL DB experience is good to have
• Implementing unit testing using frameworks like JUnit, Mockito, etc.
• Proficient understanding of code versioning tools, such as Git
• Familiarity with Maven (Other building tools Ant and Gradle are good to have)
• Familiarity with continuous integration
• Good understanding of Agile practices

Dot is a technology start-up, operating in Fintech and e-commerce space. With the aim to
revolutionize offline-to-online(O2O) space, Dot strives to enable digital transformation of Offline businesses using smart innovations. This is a huge market, serving the 1.3 billion strong Indian population.

The start-up is led by a strong and experienced team. It has already raised seed funding of ~US$ 35.5 Million from renowned investors.

To know more, head over to: www.dotpe.in

About the Founders
The company is led by an experienced team, three ex-PayU employees - Shailaz Nag, Gyanesh Sharma & Anurag Gupta, with proven expertise & knowledge of the fintech space as well as experience in building & managing companies.

Shailaz Nag is a well known visionary entrepreneur. He was ex-Managing Director and co-founder of PayU, (India’s largest and profitable Payment Company) which is currently valued at US$ 3 Billion. He was also one of the founding members of Ibibo Group. Shailaz Nag is a Chartered Accountant and also holds an MBA degree.

Gyanesh Sharma is an IIT Delhi alumnus, holding a B.Tech. degree in Computer Science. He has strong experience in leading tech teams, holding position of
● CTO at Shopclues
● Head of engg. at PayU
● Engg. Head at MakeMyTrip

Anurag Gupta has a decade long experience in building financial services business. He was Vice-President & Business head at PayU for Omnichannel business. He also headed Bank & Product Partnership for PayU.

Investors
Dot has raised seed funding of US$ ~35.5 million from
● Naspers Fintech (PayU) -
○ $120bn group with global presence. Listed in London, Johannesburg, Amsterdam
○ Presence in India : MMT-Goibibo, PayU, Flipkart, Swiggy, Byju’s, OLX
○ Global Presence : Tencent - WeChat, OLX
● Fosun RZ Capital
○ Affiliate of Fosun Group - A $100Bn Chinese conglomerate
○ Presence across global growth markets
● Info Edge
○ Parent company of naukri.com, jeevansaathi.com, 99acres.com, shiksha.com
○ Listed on NSE & BSE with a market cap of INR 27,000 crore
○ Major investor in zomato.com & policybazaar.com

Products
At Dot, we are solving the key problems that lie at the heart of Offline businesses by equipping them with commerce and fin-tech products. We are building a horizontal Omni-channel platform encompassing several Products all aimed at empowering all types of merchants, big or small, with Digital Technology. Whilst strengthening the merchants, our products also aim to direct this digital transformation towards improving the customer journey.
Our initial Product line-up has already garnered attraction from several renowned enterprises as well as significant interest from every medium and small-scale merchant we touch. And this just marks the start of our journey!

About Profile
Responsibilities
• Understanding the business requirement and provide good scalable solution
• Integration of user-facing elements developed by a front-end developers with server side logic
• Completely owning the backend services of a module
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability
• Our stack is ReactJS, React Native, Golang, MySQL, NoSQL and hosting environment is AWS

Skills and Qualifications
• Extensive and expert programming experience in anyone programming language (Golang/ C/ Java).
• A solid foundation in computer science, with strong competencies in data structures, algorithms, software design and distributed system applications
• Experience with building and scaling apps with RDBMS as well as NoSQLs.
• Experience creating scalable Web APIs for mobile and browser consumption
• Integration of multiple data sources and databases into one system
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Have a penchant for solving complex and interesting problems
• Worked in start-up culture with high levels of ownership and commitment
• Excellent coding skills – should be able to convert design into code fluently
• Engineers from Tier 1 colleges

General Accountabilities/Job Responsibilities

• Participation in the requirements analysis, design, development and testing of applications.
• The candidate is expected to write code himself/herself.
• The candidate is expected to write high level code, code review, unit testing and deployment.
• Practical application of design principles with a focus on the user experience, usability, template
• designs, cross browser issues and client server concepts.
• Contributes to the development of project estimates, scheduling, and deliverables.
• Works closely with QA team to determine testing requirements to ensure full coverage and best
• quality of product.
• There is also the opportunity to mentor and guide junior team members in excelling their jobs.

Job Specifications

• BE/B. Tech. Computer Science or MCA from a reputed University.
• 3 -12 Years of experience in software development, with emphasis on JAVA/J2EE Server side programming.
• Hands on experience in Core Java, Multithreading, RMI, Socket programing,
• JDBC, NIO, webservices and Design patterns.
• Should have Knowledge of distributed system, distributed caching, messaging frameworks,
• ESB etc.
• Knowledge of Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database is essential.
• Additionally, knowledge of HBase, Hadoop and Hive are desirable.
• Familiarity with message queue systems and AMQP and Kafka is desirable.
• Should have experience as a participant in Agile methodologies.
• Should have excellent written and verbal communication skills and presentation skills.
• This is not a Fullstack requirement, we are purely looking out for Backend resources.

• Good academic qualifications
• Experience in developing web applications using Java, Spring, Hibernate, DWR, JSP
• Knowledge in Oracle Database concepts
• Sound knowledge in the following is a must
  o Hibernate
  o Spring
  o Oracle & MongoDb
  o HTML & CSS
  o Javascript
  o Jquery
  o Angular 4
  o Node JS
  
  Knowledge of Japer Reports will be an added advantage
• Good communication skills and be a good listener
• Problem solving skills
• Willingness to learn and do all development activities including quality assurance
• Team player