
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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Job Title : Senior Java Developer
Experience : 6+ Years
Shift Timing : 01:00 PM to 10:00 PM
Domain : Clinical Research
Location : Noida, Gurgaon & Pune
Mandatory Skills :
Java 8+, Hibernate, Oracle, PostgreSQL, JAX-RS (RestEasy), Jackson, REST APIs, JSP, React.js, GitHub, GitHub Actions, SonarQube, SonarLint, and AWS (IAM, SNS, SQS, S3, CloudWatch).
Job Summary :
We are looking for an experienced Senior Java Developer with 6+ years of experience to join the software development team of a leading Clinical Research organization.
The role involves developing and enhancing enterprise applications, building scalable APIs, and contributing to feature development while ensuring code quality and best practices.
Key Responsibilities :
- Develop and maintain enterprise applications using Java 8+ and Hibernate.
- Design and consume RESTful APIs using JAX-RS (RestEasy) and Jackson.
- Work with Oracle and PostgreSQL databases, including complex query writing.
- Develop UI components using JSP and React.js.
- Utilize GitHub and GitHub Actions for version control and CI/CD processes.
- Ensure code quality through SonarQube and SonarLint.
- Work with AWS services including IAM, SNS, SQS, S3, and CloudWatch.
- Collaborate with cross-functional teams to deliver high-quality solutions.
Note : Candidates should preferably be sourced from organizations within the Grid ecosystem.
We are seeking a Java Engineer (6- 10 year's experience) in Bangalore/Gurgaon to drive modernization of enterprise financial platforms. You will lead cloud migration (AWS), integrate AI, and develop high-performance backend systems focusing on cleared derivatives, risk management, and margin optimization.
•Experience: 6 to 10 Years
•Location: Bangalore / Gurgaon
•Mode of Work: Full-Time
•Key Responsibilities
Backend Development: Build high-performance, low-latency services using Java 8/11/17+ and Spring Boot.
•Cloud Migration: Execute on premises to AWS cloud migration initiatives.
•Derivatives Focus: Implement complex business logic for cleared derivatives, covering trade matching and regulatory reporting.
•AI Integration: Implement AI pipelines for automated financial data processing.
•Architecture: Utilize AWS services (Lambda, ECS, S3, RDS, Kafka).
Required Technical Skills
•Java & Spring: Advanced Core Java, Spring Boot, Spring Security, JPA/Hibernate.
•AWS: Strong experience in AWS cloud infrastructure and security.
•Databases: Expert-level SQL (Oracle/PostgreSQL).
•DevOps: Experience with Docker, Kubernetes, and migration patterns.
Must-Have Qualifications
•Domain expertise in Cleared Derivatives (Futures & Options, Clearing Houses).
•Experience designing scalable microservices.
Nice-to-Have Skills
•Experience with Generative AI or Agent builders.
•Knowledge of Infrastructure as Code (Terraform).
Soft Skills
•Strong analytical, problem-solving, and communication skills.
● J2EE with a good understanding of Servlets and JSP
● Experience in Spring Modules – Spring IOC and AOP, Spring Boot (version 2 plus), JDBC
● Expertise in design and development of various web and enterprise – level applications using Java/J2EE
technologies such as Spring, Hibernate, Rest services.
● Web Services (including SOAP, XML, XML Schema, JSON, and REST)
● Tools required: Maven,Eclipse, Github, and Swagger
● Good knowledge of SQL and Redis (NOSql)
● Ability to document requirements and specifications
● Proven work experience as a Software Engineer or Software Developer
● Ability to develop software in Java or any other OOPS languages
● Excellent knowledge of relational databases, SQL and ORM technologies (JPA2, Hibernate)
● Experience in developing Web Applications using at least one popular Web Framework (Spring)
● Experience with test-driven development
● Proficiency in software engineering tools
Must skills:
Hands- on in the following:
- Java 8/J2EE
- Spring boot
- Gradle/Maven
- REST API
- ORM- hibernate/ JPA
- Unit Testing and Integration Testing- Junit/ TestNG
Good to have:
Hands-on in the following:
- CI/CD pipeline deployment
- Messaging- ActiveMQ/RabbitMQ/MQ
- DB2
- Kafka
- NoSQL framework exposure
- Design, develop, test, debug and maintain components of a feature-rich management and orchestration product
- Manage one or more project priorities and deadlines
- The programming languages are mainly Python and Java
- Understand the infrastructure details of public clouds and use DevOps best practices to implement provisioning
You'll Need:
- Strong software design and implementation skills in building infrastructure frameworks.
- Experience building and operating extensible, scalable resilient systems.
- Working knowledge of Java and Python.
- Solid understanding of basic systems operations (disk, network, etc).
- Willingness and ability to learn new languages and concepts.
- 8+ years of experience and a BS/MS degree in Computer Science -or- a related field.
Nice to have:
- Cloud infrastructure systems engineering experience.
- Experience in building control planes.
- Experience building RESTful APIs.
- Experience with containers and cluster managers like Kubernetes.
- Experience in App deployment and config management frameworks such as Ansible, Terraform, Chef, Puppet, etc.
Company operates in over 25 countries across six continents and is part of Publicis Media, one of four solution hubs within Publicis Groupe, which is present in over 100 countries and employs nearly 80,000 professionals.
It believe there are better ways for brands to connect with people. And we’re on a mission to guide brands to better connections -- across consumers, channels and partners. These are just some of the services we offer our clients in our quest to deliver ambitious outcomes.
Job Responsibilities:
- Developing and installing software solutions.
- Designing, implementing and delivering high quality Software project in JAVA, SQL / Oracle, J2EE and other JAVA technologies.
- Participate in detailed level in design, coding, code walk through, peer code reviews and unit testing, System Testing, UAT, Demos, POCs, installation, maintenance of Software modules.
- Software prototype.
- System Architecture.
- Software Design Document.
- User interfaces to be developed as per UX guidelines Code files ensuring coding guidelines followed.
- Code review artefacts during peer code review.
- Test plan and Test Cases.
- Installation / Deployment document Release Document.
- Technical Documentation.
Tatsam is a stealth mode, venture-backed mental healthcare company based in India. We're redesigning mental health and wellness experiences for the modern day working professional, have raised angel round from top-tier investors, and signed some of the largest Indian enterprises and startups for the upcoming private beta launch… and we’re just getting started.
The startup is led by a team of CXOs who are serial entrepreneurs (YC alumni, IIT alumni, CXO in large enterprises). They are supported by a team of behavioral design experts, clinicians and counsellors with vast experience, and technologists on a mission to improve mental health and wellbeing for the modern day working professional.
Responsibilities:
- Your primary responsibility as a senior backend engineer will be to architect and develop a scalable and robust micro-services backend with strong Java, Spring(Boot), MySQL, AWS/GCP.
- Experience being part of a software development team in an Agile/Lean/Continuous Delivery environment
- Be a key performer in a high-performance product engineering team
Qualifications:
- 1 to 4 years of overall IT experience. Most of this experience in Java (Core Java, J2EE, Springboot, Java collections, Java Multithreading)
- Should have experience designing database schemas - SQL and NoSQL.
- Exposure to frameworks like Spring, Hibernate, Play would be a plus
- Experience with microservices architecture would be beneficial.
- Working knowledge of any public cloud (AWS, GCP or Azure)
- Broad understanding and experience of real-time analytics, NoSQL data stores, data modeling and data management, analytical tools, languages, or libraries
- Bachelor's Degree in Computer Science or Engineering.
The Opportunity
You will enter a close group of exceptionally talented people who in the last 2-months have secured incredible investors, partners, clients and advocates. We will continue this momentum till our vision of being able to provide good mental health and wellbeing avenues for the modern day professionals is achieved. If we like each other and agree to partner in this journey, this has the potential of resulting in a compounded career and mental growth for you.
Requirements
- Experience in open source technologies - Solr, Redis, Kafka
- Exposure to building & managing applications in Amazon Webservices (AWS)
- Experience in security, scalability & performance aspects of solution
- Critical Skills: 1. Java / J2EE, Spring, PostGreSQL 2. Nginx, Tomcat 3. Developing REST webservices
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