the core library/language constructs.
• Knowledge of processor, memory, network and storage internals. Familiarity with I/O optimized
algorithms.
• Deep understanding of distributed systems including fault modeling, concurrency, isolation,
consensus etc.
• Internals of a RDBMS like MySQL
• Conversant with the internals of systems like Kafka, Cassandra/Scylla, Redis, RocksDB etc
• Working knowledge of hosting and network infrastructure (K8s, Envoy, etc)
• Familiarity with binary serialization protocols like thrift/protobuf/flatbuffers etc
• Familiar with gRPC, HTTP/2, QUIC, etc.
• Troubleshooting memory issues, GC tuning, resource leaks etc.
• Strong problem-solving skills, algorithmic skills and data structures.
• Productionizing machine learning pipelines using Spark/Flink/TensorFlow etc
• Familiarity with big data concepts - HDFS, hive, presto, spark, oozie, ambari, airflow, atlas,
ranger, etc. Familiarity with formats like avro, parquet, orc, arrow etc
• Good understanding of branching, build, deployment, continuous integration methodologies
• Experience in leading a team and mentoring engineers
• Attitude to get Stuff Done!
• Ability to make decisions independently.
Desired Background:
• Bachelor’s or Master’s degree in Engineering from premier institutes preferred
• 8+ years of experience in software design, development & architecture

About Olacabs.com
About
Connect with the team
Similar jobs
Job Description – Senior Java Developer (Spring Boot / Microservices)
Location: Chennai, India
Experience: 4+ Years
Availability: Immediate Joiner
About the Role:
We are looking for a highly skilled Java Developer with over 5 years of hands-on experience in building scalable backend systems using Java, Spring Boot, and Microservices architecture. The ideal candidate will have strong problem-solving skills, deep knowledge of backend frameworks, and a solid understanding of JUnit-based testing.
Key Responsibilities:
- Design, develop, and maintain high-performance backend systems using Java and Spring Boot
- Develop and deploy RESTful microservices in a distributed architecture
- Collaborate with cross-functional teams to define, design, and ship new features
- Write clean, scalable, and testable code following best practices
- Implement unit and integration tests using JUnit and other testing frameworks
- Participate in code reviews and contribute to improving team processes
- Troubleshoot and resolve production issues in a timely manner
Key Skills:
- Strong proficiency in Java
- Expertise in Spring Boot and related modules (Spring Data, Spring Security, etc.)
- Solid understanding of Microservices architecture, REST APIs, and inter-service communication
- Experience with JUnit and writing automated test cases
- Familiarity with CI/CD pipelines and version control (Git)
- Knowledge of containerization (Docker, Kubernetes) is a plus
- Exposure to messaging systems like Kafka or RabbitMQ is a plus
- Familiarity with databases (SQL/NoSQL)
As a Backend 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 need to be very efficient and high performing. This requires optimizing queries for faster execution and introducing database changes that may be required. We are looking for individuals with great attention to detail, who are 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 IT DONE.
Responsibilities:
- Develop, test, implement and maintain application software
- Take part in software and architectural development activities
- Debug application issues and helping support respond to client queries
- Participate in application development meetings
- Provide accurate estimates, clearly communicate status of tasks and identification of risks
- Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
- Performance tuning of application code at different service levels
- Interact with customers of the application and help address issues reported
Requirements:
- Bachelor's degree in Computer Science or equivalent
- 3+ years of experience with Java and Spring frameworks.
- Having good knowledge in a scripting language like python is a plus
- Experience with Spring and Hibernate/ ORM
- Understanding of relational database and normal forms
- Understanding of NoSQL / RDBMS (Mongo or Postgres) and ability to write optimized and high performing queries
- Strong understanding of Java concurrency, concurrency patterns, experience building thread safe code
- Experience building RESTful web services
- Strong written and verbal communication skills
- Strong interpersonal skills and time management skills
- Strong problem solving and analytical skills
- Experience with GIT as a VCS, Unix based systems
- Experience with NoSQL Database is a plus
- Following are a set of 'good to have' skills React AWS Bitbucket, JIRA
We are looking for a Senior Java Developer with 6+ years of experience to join our team. The ideal candidate should have strong expertise in Java, Spring Boot, Microservices, and Cloud Technologies. You will play a key role in designing, developing, and optimizing scalable applications while mentoring junior developers and ensuring best coding practices.
Key Responsibilities:
- Design, develop, and maintain Java-based enterprise applications.
- Implement and optimize Microservices Architecture using Spring Boot.
- Develop, test, and deploy RESTful APIs and Web Services.
- Work with SQL and NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
- Ensure application scalability, security, and performance.
- Collaborate with DevOps teams for CI/CD pipeline integration.
- Work with Cloud platforms (AWS, Azure, or GCP) for cloud-native development.
- Implement best practices for coding, testing, and deployment.
- Lead code reviews, mentor junior developers, and contribute to architectural decisions.
- Troubleshoot production issues and provide effective solutions.
Required Skills & Experience:
- 6+ years of hands-on experience in Java development.
- Strong expertise in Spring Boot, Spring MVC, and Spring Security.
- Experience with Microservices Architecture and containerization tools like Docker/Kubernetes.
- Proficiency in SQL & NoSQL databases (MySQL, PostgreSQL, MongoDB, Redis).
- Hands-on experience with RESTful APIs, messaging systems (Kafka, RabbitMQ), and authentication mechanisms (OAuth, JWT, SAML).
- Familiarity with CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD).
- Experience in Agile/Scrum development methodologies.
- Strong knowledge of multi-threading, concurrency, and design patterns.
About the Role
We are actively seeking talented Senior Python Developers to join our ambitious team dedicated to pushing the frontiers of AI technology. This opportunity is tailored for professionals who thrive on developing innovative solutions and who aspire to be at the forefront of AI advancements. You will work with different companies in the US who are looking to develop both commercial and research AI solutions.
Required Skills:
- Write effective Python code to tackle complex issues
- Use business sense and analytical abilities to glean valuable insights from public databases
- Clearly express the reasoning and logic when writing code in Jupyter notebooks or other suitable mediums
- Extensive experience working with Python
- Proficiency with the language's syntax and conventions
- Previous experience tackling algorithmic problems
- Nice to have some prior Software Quality Assurance and Test Planning experience
- Excellent spoken and written English communication skills
The ideal candidates should be able to
- Clearly explain their strategies for problem-solving.
- Design practical solutions in code.
- Develop test cases to validate their solutions.
- Debug and refine their solutions for improvement.
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
Roles & Responsibilities:
Build efficient, testable, and reusable PHP modules.
Solve complex performance problems and architectural challenges.
Integration of data storage solutions (may include databases, key-value stores, etc.).
Integration of User Interfaces developed by front end developers.
Skills and Qualifications:
· Must have a bachelor’s degree or above in Computer Science or in similar field.
· Minimum 4 years of experience in PHP web development.
· Strong knowledge of front-end technologies, such as JavaScript, HTML5, and CSS3
· Strong knowledge of PHP web frameworks (CodeIgniter, NodeJS)
· Experience in creating custom modules and themes.
· Expert knowledge in web architecture.
· Strong understanding of MVC design patterns and oops concept.
· Strong understanding of full synchronous behaviour of PHP.
· Experience with modern UI frameworks such as React, Angular or Vue.js
· Experience in MySQL and the ability to write SQL queries.
· Proficient understanding of source control management such as Git, SVN.
· Proficient understanding fundamental design principles behind a scalable application.
· Familiarity with limitations of PHP as a platform and its workarounds.
· Ability to create database schemes that represent and support business processes.
· Experience with Edu Tech companies will be preferred.
. Immediate Joiner Preferred.
The candidate will need to demonstrate previous experience of taking a client's requirements and translating them into technical specifications. The candidate will have to have previous examples of how he/she has worked with internal customers and technical peers.
The ideal candidate should have 3 to 5 years’ experience within a web application development environment.
Experience with PHP, HTML, CSS, MySQL, SOAP/REST, JavaScript, AJAX, etc. is a must. Following are the key area we are expecting you to have strong command on:
- Analytical Skills
- Algorithms
Responsibilities and Duties
- Development of software extensions to vTiger CRM/Drupal/WordPress and any other PHP based application
- Development of integration between CRM and ERP systems provided by Target Integration and any other system using their APIs
- Development and maintenance of code in Gitlab (In-house git server)
- Managing tickets and updating them regularly in Redmine (Project and Ticket Management Platform)
- Providing solutions to the pre-sales team on new projects
- Supporting the existing development team
Qualifications and Skills
- Coming up with ideas to help grow the team
- Data Structure
- Data Modelling Concepts
- Object-Oriented Design Principles and Concepts
- MVC – Pattern in Depth.
- Aware of Various other commonly used design patterns like Factory, Abstract Factory, etc.
- PHP, MYSQL, HTML, CSS, JS, JSON, Webservices
- Object-Oriented PHP
- SQL In general, Procedure, triggers, functions, etc.
- Query Designing.
- Thorough understanding of HTTP.
- Version Control (specifical git) and bug tracking software knowledge are important.
Benefits
- Linux system administration experience will be useful
- Experience of working on at least two of Joomla/Drupal/vTiger CRM or Sugar CRM is a must
- Strong understanding of relational database design
- Experience in creating professional-looking web interfaces using CSS and HTML
- Understanding of business processes
- Ideally, they should have worked on CRM/ERP/Accounting applications
- Excellent written and spoken communication skills
Job Type: Full-time









