Senior Java Developer

• Hands-on Java Engineers, with experience building consumer-facing or enterprise applications using Java stack – Spring, Hibernate, MySQL
• Strong problem solving and analytical skills
• Strong understanding of Object-Oriented Programming concepts and Design patterns.

Do You Know? (Skills good to have)

• Exposure to building service-oriented distributed systems
• In building systems that process big data in a distributed environment, either in real-time streaming or offline batching.
• In messaging systems like Kafka, RabbitMQ, kinesis, etc.
• In real-time computation tools like Storm / Spark or Hadoop-based tools.
• In Data warehousing technologies like Redshift, BigQuery, etc.

 

 

Primary responsibilities:

 

• Architect, Design and Build high performance Search systems for personalization, optimization, and targeting
• Designing systems with Solr, Akka, Cassandra, Kafka
• Algorithmic development with primary focus Machine Learning
• Working with rapid and innovative development methodologies like: Kanban, Continuous Integration and Daily deployments
• Participation in design and code reviews and recommend improvements
• Unit testing with JUnit, Performance testing and tuning
• Coordination with internal and external teams
• Mentoring junior engineers
• Participate in Product roadmap and Prioritization discussions and decisions
• Evangelize the solution with Professional services and Customer Success teams

 

Minimum requirements:

 

• Tech/M.Tech in computer Engineering or related fields or MCA
• At least 10-14 years of software development experience
• Expert in Java, Scala or any other object oriented language
• Proficient in SQL concepts (HiveQL or Postgres a plus)
• Additional language skills for scripting and rapid application development

 

Desired skills and experience:

 

• Working with large data sets in the PBs
• Familiarity with UNIX (systems skills a plus)
• Working experience in Solr, Cassandra, and Kafka
• Working in a distributed environment and has dealt with challenges around scaling and performance
• Working with distributed teams across multiple locations

BlueOptima provides industry-leading objective metrics in software development using our proprietary Coding Effort Analytics. We enable large organisations to deliver better software, faster and at lower cost. Founded in 2006, BlueOptima is a profitable, high-growth independent software company. Our unique technology was initially devised in seminal research carried out at Cambridge University. We are headquartered in London with offices in New York, Bangalore, Gurgaon and Guadalajara.BlueOptima’s technology is deployed by global enterprises to drive value from their software development activities. We work with nine of the world’s top twelve largest Universal Banks (by revenue) and three of the world’s top ten telecommunications companies (by revenue, excl. China). Our technology is pushing the limits of complex analytics on large data-sets with more than 15 billion static source code metric observations of software engineers working in an Enterprise software development environment.BlueOptima is an Equal Opportunities employer.Whom are we looking for?Our groundbreaking technology, requires highly skilled and talented Web Backend Developers to understand the depth of the problem and device a solution for it.We are seeking a Software Engineer, with a depth of experience in developing Web Applications enabled using REST APIs and backed by a data warehouse solution, to join our growing company and be a part of our success story. We are looking for individual with great attention to detail, who is genuine, confident, committed and not only passionate about technology, but excited to work in a fun and friendly start-up environment. The ideal candidate will be passionate about technology and getting things to work while at the same time being able to mentor (and lead) other engineers by way of example to achieve excellence in their work.What does the role involve?As a Web Backend Principal Software Engineer you will be responsible for creating REST APIs which are used to drive the User Interface. Given the nature of the application, these APIs needs to be very efficient and high performing. This requires optimising queries for faster execution and introducing database changes that may be required.You would be working with a complex technology stack which includes (but is not limited to) Spring, Hibernate, HornetQ, Quartz, etc. This requires extensive understanding of transaction management and data handling across different application layers.In addition to the technical ownership, you will also be involved in detailing requirements for requested functionalities and be responsible for providing technical insight into how requirements will be implemented and made available to users. Accurate estimation of tasks and planning are qualities we look for in our engineers.Responsibilities include:Develop, test, implement and maintain application softwareTake part in software and architectural development activitiesTransform requirements into implementation detailsDebug application issues and helping support respond to client queriesMay lead and provide mentoring and guidance to less senior developersParticipate in application development meetingsProvide accurate estimates, clearly communicate status of tasks and identification of risksCommitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problemPerformance tuning of application code at different service levelsIncorporate design changes to improve performance of the applicationInteract with customers of the application and help address issues reportedInteract with customers of the application and collect requirements or potential uses cases and draft technical and user requirementsESSENTIAL SKILLS / EXPERIENCE REQUIRED:Minimum Bachelor's degree in Computer Science or equivalentMinimum 8+ years experience with Java and J2EE/Java EEMinimum 8+ years experience with Spring MVC, Spring Security and Hibernate2+ years experience managing in colocated and remote teamsStrong understanding of relational database and normal formsStrong understanding of SQL concepts and ability to write optimised and high performing queriesStrong understanding of Java concurrency, concurrency patterns, experience building thread safe codeExperience building RESTful web servicesExperience with web application servers like JBossStrong written and verbal communication skillsStrong interpersonal skills and time management skillsStrong problem solving and analytical skillsExperience using task tracking systems e.g. Jira and distributed version control systems e.g. GitUnderstanding of testNg/JUnitUnix/Windows shell and related command line toolsExperience with database partitioning and column IndexingExperience with query optimisation techniquesWhy work for us?Above market remunerationStimulating challenges that fully utilise your skillsWork on real-world technical problems to which solution cannot simply be found on the internetWorking alongside other passionate, talented engineersHardware of your choiceOur fast-growing company offers the potential for rapid career progression

External Title : Senior Architect/ Senior Technical Architect – Java @ Walmart Labs Internal Title : Senior Architect (IN6) Senior Architect @ Walmart Labs, Bangalore. Our Company: We help people around the world save money and live better -- anytime and anywhere -- in retail stores, online and through their mobile devices. Each week, more than 230+ million customers and members visit our 11000+ stores under 69 banners in 27 countries and e-commerce websites in 10 countries. With last fiscal year revenues of approximately $482 billion and 2.2 million employees worldwide, Walmart is simply the largest retail business in the world. @ Walmart Labs in Bangalore, we enable an ecosystem wherein our customers can “save money so they can live better” by using technology for the charter of building brand new platforms and services on latest technology stack to support both our e-commerce and stores businesses worldwide. Our Team The International Markets team contributes to key global ecommerce sites including ASDA (in the UK), Walmart Canada and Walmart Mexico. We work on technologies that intersect a wide variety of business models for grocery, general merchandise and the warehouse format. Our focus is to build a continuous, seamless, omni-channel customer experience across physical stores, ecommerce and mobile commerce, that is unique to Walmart and sets us apart from our competition. Your Opportunity As a part of the Mexico ecommerce initiative, you will have the opportunity to be part of a team that is being built from the ground up to work on 5 different brands including General Merchandise, Grocery, Samsclub, Suprema and Bodega. With over 2500 stores and a vibrant market that is growing at 26% CAGR, Mexico presents a challenging environment where ecommerce growth is fueled by an expected internet penetration increase of 30% and a 20% increase in smartphone adoption by 2020. It is also a uniquely strategic and time sensitive opportunity for Walmart to gain a substantial lead in Mexico over the rest of our competition. Your Responsibility: As Senior Architect for you would be responsible to: 1. Help define and influence the next generation shopping architecture 2. Work very closely with various business and technology stakeholders to drive the execution of multiple technology initiatives 3. Explore new technologies and run POCs that can add to the future technology roadmap for the team 4. Help hire, develop, upskill and mentor a strong team of engineers. 5. Take part in design, architecture and code reviews across different work streams Your Qualifications: • An Engineering Degree - B.E/B.Tech/MS/PhD in any stream – Computer Science preferred. • 10+ years of relevant experience with the following skills o Proven experience in driving architecture, design and development of distributed systems focusing on high scalability, availability and extensibility o Experience in data crunching and deriving business insights using big data/machine learning techniques o Excellent knowledge with architecting distributed scalable systems using big data and NoSQL o Deep knowledge and hands on experience in delivering SOA, cloud and REST Services using Java/JEE, Spring, CXF etc… o Worked across the product development SDLC Our Ideal Candidate Our ideal candidate is an energetic, self-motivated individual focused on solving customer problems. He/She is a responsive team player who can proactively contribute at an individual level. He /she is someone who thrives in a fun, fast-paced, dynamic, startup-like environment.

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