
About Walmart labs
About
WalmartLabs is an American privately held company in Mountain View, California. We help people around the world save money and live better – anytime and anywhere – in retail stores, online, and through their mobile devices. @WalmartLabs has three development centers worldwide: USA, Brazil and India.
The Global Data and Analytics Platforms (GDAP) team @ Walmart Labs in Bangalore provides Data Foundation Infrastructure, Visualization Portal, Machine Learning Platform, Customer platform and Data Science products that form part of core platforms and services that drive Walmart business. The group also develops analytical products for several verticals like supply chain, pricing, customer, HR etc.
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ROLE AND RESPONSIBILITIES
• Involvement in the full software development life cycle within broadly defined parameters and
providing software solutions keeping into consideration, the software quality needs.
• Design and defining the interaction between the different component pieces.
• Write efficient code based on brief given by team lead.
• Fast prototyping of proof-of concept features / application based on brief.
• Develop and maintain new features on Java stack.
• Own the delivery of an entire piece of a system or application.
• Management and execution against project plans and delivery commitments.
• Work closely with the peers and Leads to develop the best technical design and approach for new
product development.
• Build software solutions for complex problems.
• Compliance with build/release and configuration management process.
• Responsibility to develop unit test cases for his/her project module.
QUALIFICATIONS AND EDUCATION REQUIREMENTS
WORK EXPERIENCE AND EDUCATIONAL BACKGROUND THAT A CANDIDATE SHOULD HAVE WHEN APPLYING FOR
POSITION
• 5+ years of proven experience as a Software Developer, Software Engineer or similar role
• Familiarity with Agile development methodologies
• B.E./ B.Tech. / M.E. / M.Tech. / M.S. in Computer Science, Electronics or a related field.
• Experience with software design and development in a test-driven environment
• Knowledge of coding languages (e.g. Java, JavaScript) and frameworks/systems
• Experience with databases (Oracle / Postgre) and Object-Relational Mapping (ORM) frameworks
• Ability to learn new languages and technologies
• Excellent communication skills
• Resourcefulness and troubleshooting aptitude
PREFERRED SKILLS
ADDITIONAL SKILLS OR EXPERIENCE THAT WOULD BE CONSIDERED FAVORABLE FOR A CANDIDATE WHO IS
APPLYING FOR THIS POSITION.
• Excited about the start-up company “experience”.
• BS/MS in Computer science preferred.
• Full project lifecycle experience.
• Strong oral and written communication skills.
Responsibilities:
- Provide technical leadership of critical integrations by MuleSoft mostly with contact-center solution.
- Provide MuleSoft technical expertise and leadership when evaluating and designing integration solutions ensuring all components and subsystems impacted are properly addressed during builds and deployments.
- Collaborate cross-functionally with teammates to implement integration solution.
- Troubleshoot MuleSoft/API technical issues as needed
Qualifications
- Bachelor's Degree required. In lieu of a degree, a comparable combination of education and experience may be considered.
- 3+ years of experience in building scalable, highly available, distributed solutions and services
- 1+ years of experience in middleware technologies: Enterprise Service Bus (ESB), most preferably with MuleSoft CloudHub and Orchestration, Routing and Transformation
- 3+ years of experience working with Java
- Experience in RESTful API architectures, specifications and implementations
- Working knowledge of progressive development processes like scrum, XP, Kanban, TDD, BDD and continuous delivery
- Concept understanding on Google Cloud platforms is a major plus

• Analyze user and system requirements
• Design flowcharts to illustrate software solutions
• Write efficient code based on feature specifications
• Develop user interfaces
• Prioritize and execute tasks in the software development life cycle
• Design database architecture
• Test and debug Java applications
• Validate software functionality and security
Requirements:
• Work experience on Java, Spring, Strurts , Hibernate, Microservice etc.
• Experience building Java EE applications.
• God knowledge of Database tool, Frontend Skills.
• Familiarity with Object-Oriented Design (OOD)
• Good knowledge of popular Java frameworks like JSF and Spring MVC
• Experience with test-driven development
• Problem-solving skills
Note:
- Should have hands-on core knowledge of Java.
- Must have min 3-5 years of experience.
Kindly do not apply otherwise.
Candidates must also fill out this form to start their processes. -> https://forms.gle/mBUAdg2NfrL6DF479
Looking for 5+ years of experienced Java developers to work on a new-age lending finance company based in Pune. We empower established banks with the lending ecosystem of the future. Backed by HDFC, we are on a mission to grow our current transactional amount of 13 Bn+ to tenfolds in the near future.
Our tech stack is one of the most exciting and ahead of its times where we would be expecting you to get your hands practical on these things.
- Ability to communicate effectively verbally and in writing.
- Mentoring junior developers with code reviews design reviews and unit tests.
- Code Versioning (Git, Bitbucket)
- Java
• Collections
• Multi-threading, Background Scheduling
• Design & Architecture patterns
• Springboot, MVC, API-first philosophy
• Understanding fundamental design principles behind a scalable application
• Work with database versioning concepts using Java.
- Api Gateways - APiCurio, Kong, Open API Concept
- Redis, Kafka, ElasticSearch
- DB - PSQL, Aurora, MongoDB
- Deployment - basic understanding of Docker, Kubernetes, Terraform AWS
- Alerting & Monitoring - grafana, elasticsearch, kibana, fluentd, prometheus
Although the full list of the tech stack is very vast, and we've multiple developers for each part of the stack, we would expect any senior role to understand the basics of other services end of the day, but be fluent in Core Java.

DUKAAN - Create Your Online Store in 30 Seconds
Dukaan is an app that allows offline businesses to sell their products and services online. On our app, the users can make beautiful product catalogs (catalogs) right from a smartphone and share with their customers easily on different social media apps such as Whatsapp Business, Whatsapp, Facebook, Instagram, etc. Praised by users all over India, this app has saved declining businesses by helping them transfer their shop online. The journey has just begun and we are on a mission to make India truly Digital.
Dukaan is currently powering over 5M e-commerce stores built by Indian small businesses and growing at a crazy rate.
We are looking for a Backend Engineer to join our team who will be part of our new innovations team.
Requirements:
- Strong knowledge of Django, Django Rest Framework, and their design principles.
- Strong knowledge of Django ORM, should be able to leverage it to write complex and optimized queries (E.x Q queries, Case, When, Select related, prefetch related, Subqueries, Annotations, Aggregations, Filtering, etc.).
- Should be able to override DRF serializers, filters, and view set completely according to needs.
- Should have good experience in Class-Based Views to write the backend API.
- Sound knowledge of database design patterns and modeling them to Django models.
- Sound knowledge of how to write test cases for the APIs.
- Should be able to write optimized pythonic code adhering to python PEP standards.
- Strong knowledge of python packaging and how to architect a codebase that should be easily scalable and not get cluttered.
- Strong knowledge of REST API design patterns.
- The ability to write RAW SQL queries and further database-level coding will be a plus.
- Good Understanding of python’s asyncio, threading, and multiprocessing library, their benefits and limitations along with their appropriate use cases.
- Hands-on knowledge of celery and its corresponding message broker such as RabbitMQ, Redis, etc.
- Experience with building a CDC(Change Data Capture) pipeline will be a plus.
- Experience with Apache Kafka, Kafka connect and Debezium will be a plus.
- Experience with open source will be a plus.
- Good knowledge of Algorithms and data structures.
Responsibilities:
- Understand the ins and out of the existing codebase and have a good grasp of it.
- Write clean, stable, and scalable code.
- Write unit test cases for the APIs.
- Do whitebox and blackbox testing for your own code and as well as others if required.
- Understand and implement fast prototype solutions for business needs.
Responsibilities:
- Strong Technical Chops: You should know how to build highly scalable, robust, and fault-tolerant services that support our unique rate-of-growth requirements.
- You should be on top of the latest architectural trends.
- Fast Learners: We are looking for folks who thrive on new technologies and don't believe in one-size-fit all solutions.
- You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment.
- You understand requirements beyond the written word.
- Whether you're working on an API used by other developers, an internal tool consumed by our operation teams, or a feature used by millions of customers, your attention to details leads to a delightful user experience.
Requirements:
- Strong knowledge of MySQL, NoSQL, PostgreSQL, ElasticSearch.
- Experience in Java and web technologies.
- Experience in any one scripting language like Python.
- Hands-on experience with systems that are asynchronous, RESTful and demand concurrency.
- Knowledge of best software engineering practices for all stages of software development life cycle, including coding standards, code reviews, testing and deployment.
Java Developer
Responsibilities
• Design and development of RESTful Web Services
• Hands on database experience (Oracle / PostgreSQL / MySQL / SQLServer)
• Hands on experience with developing web applications leveraging Spring Framework
• Hands on experience with developing microservices leveraging Spring Boot
• Knowledge in Application Server Tomcat
• Continuous Integration tools (Jenkins)
• Ability to communicate effectively in English, with good verbal and written skills
• Strong believer and follower of SDLC principles with an emphasis on Quality & Standards based
• development
What we need
• 3-4 years of experience in Java/J2EE technologies
• Core Java
• Spring Framework
• Spring DI, Spring AOP, Autowiring
• Spring Boot
• Spring ORM / Spring Data JPA
• Willing to learn technology/domain on demand basis
• Good team interactions.
- Strong experience with REST/SOAP web services, JSON, XML and design patterns.
- Good knowledge of Data Structures and Advance DS
- Proficient in test-driven development, latency problem solving, architecture solving and high-level troubleshooting.
- Good understanding of Database and SQL queries.
- Highly proficient in analytical and problem-solving skills with attention to details.
- Demonstrated Agile (Scrum) experience.
- Experience with full software lifecycle and deploying applications to Production.
- Must be a self-starter/self-directed member of the team.
- Must have the ability to translated user requirements into design and implementation.
- Highly proficient in written and communication skills.

