Roles and Responsibilities
• Code, develop, design and architect features related to the existing application. We
expect you to own modules end to end and take pride in the work products you
ship.
• Lead from the front, when it comes to delivering high quality work products. Serve
as a mentor to the team members
• Create and define performance metrics. Ideate, innovate and hack through the
existing systems to improve performance.
• Perform code reviews, set coding practices and guidelines within the team.
• Make sense of the product specs, be nimble in getting the issues resolved. Be a
thought leader.
Critical Functional Skills:
• Solid understanding and knowledge of Java/C/C++. You should understand the
concepts of multithreading, I/O, messaging, instrumentation etc and their
implementation in Java/Any other Object-Oriented Language.
• Proficiency in the implementation of algorithms and the use of advanced data
structures to solve problems in computing. A solid foundation in the principles of
computer science is desired.
• Ability to write clean, modular, and loosely coupled code by the use of design
patterns.
• He/She should be able to break down and architect complex software systems. For
example- Build
• Cars Availability Engine for Ola.
• Strong decision-making ability
• Deep expertise in at least one programming language & tech stack.
• Substantial experience in building complex and scalable solutions.
• Strong object-oriented design skills, ability to apply design patterns, and an uncanny
ability to design intuitive module and class-level interfaces
• The ability to do deep problem solving and build elegant, maintainable solutions to
complex problems.
• Experience leading multi-engineer projects and mentoring junior engineers
• Experience with full life cycle development in any programming language on a Linux
platform
• Comprehensive operational experience including, optimizations, deployments and
tuning servers like apache/mysql/tomcat/solr
• Prior experience in working with Agile software methodologies (XP, Scrum), TDD,
and Continuous Integration(CI/CD) a plus.
• Experience in building data-driven web application design and development is a plus
• Expert level experience in building a scalable, large and complex business
application.
Experience Required:
• Typically with an experience of 5+ years of development experience in a product
firm.
• Must have lead, designed, architected and delivered at least 1 project in his previous
assignments independently.
Minimum Qualifications Required:
• Btech/MS from a reputed Institute
• Deep expertise with any or combination programming languages: Java, C++, C#,
Ruby, Scala,
• Go any object-oriented high-level proprietary or open-source language with strong
programming constructs. We are not skill-specific but go by strength in
competencies
• Machine coding
• Single machine in-memory program
• Need a working code with functionality
• Readable and well-designed code with right abstractions, separation of concerns,
• right design patterns
• Performant code with concurrency and efficient data structures
• Write test cases covering the happy path and edge cases
• Problem Solving
• Choose the right combination of data structures to solve the problem
• Identify most edge cases for the problem
• Identify opportunities of parallelism: utilizes multi-core solutions where applicable
• Design & Architecture
• Distributed systems design and system interaction
• Identify API signatures
• LLD with class design
• Solve for performance & availability

About Olacabs.com
About
Connect with the team
Similar jobs
Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Experience: 4-8 years
Required Skills:
- Experience in Core Java and Spring Boot.
- Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
- Good development experience with RDBMS.
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
Key Responsibilities:
Team Leadership and Management:
- Lead, mentor, and manage a team of backend developers, fostering a culture of collaboration, innovation, and technical excellence.
- Promote a shared vision for the team, ensuring alignment with business goals and organizational objectives.
- Conduct performance reviews, provide constructive feedback, and create opportunities for team members’ professional growth.
- Drive cross-functional collaboration between development teams, designers, and product managers to deliver seamless and high-quality software.
Technical Strategy and Execution:
- Define and drive architectural decisions for both backend and frontend systems,ensuring scalability, reliability, and performance.
- Advocate and implement best practices in software development, including coding standards, test-driven development (TDD), and peer code reviews.
- Encourage the adoption of Large Language Models (LLMs) and AI-driven tools to optimize development and testing workflows.
- Provide technical direction on backend development using modern frameworks and languages, as well as frontend development using React, Angular, or Svelte.
Process and Quality Management:
- Ensure robust integration between backend APIs and frontend systems for seamless user experiences.
- Establish and enforce coding, testing, and deployment standards for both backend and frontend teams.
- Implement and optimize automated testing frameworks for backend and UI layers to ensure comprehensive coverage.
- Monitor system performance and application stability, proactively identifying and mitigating risks.
- Establish CI/CD pipelines and DevOps best practices for efficient and reliable delivery cycles.
Stakeholder Collaboration:
- Act as a bridge between engineering teams, business stakeholders, and leadership, ensuring effective communication and alignment.
- Translate complex business requirements into actionable technical solutions and guide teams through their implementation.
- Provide regular updates on progress, challenges, and innovations to stakeholders.
Innovation and Exploration:
- Stay updated on advancements in Large Language Models (LLMs) and integrate them into development and quality assurance workflows where applicable.
- Encourage the exploration of cutting-edge technologies, tools, and frameworks for both backend and frontend development.
- Champion the use of AI and machine learning tools for performance optimization, automated testing, and enhanced developer productivity.
Skills & Qualifications:
Must-Have Skills:
- Proven experience as an Engineering Manager or similar leadership role.
- Strong technical background in backend technologies (e.g., Java, Spring Framework).
- Deep understanding of RESTful API design, microservices architecture.
- Hands-on experience with containerization and orchestration tools like Docker.
- Solid knowledge of Agile methodologies, TDD, and CI/CD pipelines.
- Excellent leadership, communication, and problem-solving skills.
- Expertise in integrating Large Language Models (LLMs) and AI-powered tools into development workflows.
Nice-to-Have Skills:
- Experience with cloud platforms like AWS, GCP, or Azure.
- Knowledge of automated testing frameworks for both backend (e.g., JUnit, Postman) and frontend (e.g., Playwright).
- Understanding of DevOps practices and infrastructure-as-code tools like Terraform.
- Exposure to AI/ML frameworks and libraries for enhancing application features and team efficiency.
Job Details
- Job Title: Android Developer
- Industry: IT- Services
- Function - Information technology (IT)
- Experience Required: 5-8 years
- Employment Type: Full Time
- Job Location: Delhi
- CTC Range: Best in Industry
Criteria:
· Strong technical background in Android application development and Kotlin
· Looking candidates having 5+ years of experience.
· Need candidates from Delhi NCR Only.
· All Academic backgrounds acceptable (except BCA).
· Immediate Joiners Preferred
· Candidate must have some experience working with IoT devices.
· Candidate should have experience working with Camera model X.
· Candidate's Academic scores must be 70% or above.
· Candidate having fluent communication will be an added advantage.
Job Description
About the Role:
Senior Android Team Lead will be responsible for testing, QC, debugging support for various Android and Java software/servers for products developed or procured by the company. The role includes debugging integration issues, handling on-field deployment challenges, and suggesting improvements or structured solutions. The candidate will also be responsible for scaling the architecture. You will work closely with other team members including Web Developers, Software Developers, Application Engineers, and Product Managers to test and deploy existing products. You will act as a Team Lead to coordinate and organize team efforts toward successful completion or demo of applications. This includes implementing projects from conception to deployment.
Responsibilities:
â— Working with the Android SDK, Java, Kotlin, NDK
â— Handling different Android versions and screen sizes
â— Applying Android UI design principles, patterns, and best practices
Requirements:
â— Strong technical background in Android application development and Kotlin
â— Solid programming skills
â— Detail-oriented with strong attention to specifics
â— Excellent written and verbal communication skills
â— Strong analytical and quick problem-solving ability
â— Ability to quickly document requirements from open discussions
â— Fast typing skills for documentation and communication
â— Familiarity with JIRA, EPICs, Excel, Google Sheets, and Agile methodologies
â— Team player with leadership qualities
â— Decision-making ability and team management skills
â— Interest in working in a startup environment with cutting-edge products
â— Experience with design and architecture patterns
â— Understanding of testing processes, debugging, code versioning, and repositories
â— UI/UX experience
â— Strong knowledge of Java & Kotlin
â— Software development experience with strong coding skills
â— Experience building services for data delivery to mobile clients
â— Experience with relational and non-relational databases
â— Knowledge of REST and JSON data handling
â— Experience with libraries like Retrofit, RxJava, Dagger 2, Lottie
â— Server integration (REST endpoints)
â— Experience with AWS stack and Linux
â— Apps shipped and available on Google Play
â— Backend API development
â— Familiarity with Android Studio, Eclipse IDE
â— Good knowledge of mobile hardware, software, and operating systems
â— Willingness to work in a fast-paced startup environment
â— Strong oral communication and presentation skills
â— Team-oriented, with a positive approach to technology and engineering
â— Result-oriented with a focus on efficiency and timeliness
â— Strong self-awareness and ability to work under deadlines
â— Proficiency in Microsoft Project, PowerPoint, Excel, Word
â— Willingness to mentor and manage team members
â— Willing to travel 5–10% of the time for demos, training, and collaboration
Preferred Background:
â— Understanding of Artificial Intelligence and Machine Learning
â— B.S. / M.S. in Computer Science, Electrical, or Electronics Engineering
â— 5+ years’ experience with Android, Java Server, JSP
â— Experience with Virtual Reality and Augmented Reality
â— Familiarity with Test-Driven Development
â— Background in CS or ECE
â— Python experience is a big plus
â— iOS development knowledge (not mandatory)
â— Strong foundation in data structures and algorithms
- 3+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 3+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
- 3+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
| Python |
| FastAPI / Django Framework |
| Database concept, API & SQL's |
| SSO, Oauth2, JWT, Microservices |
| MVC, ORM |
| 1) Write effective, scalable code |
| 2) Develop back-end components to improve responsiveness and overall performance Integrate user-facing elements into applications. |
| 3) Test and debug programs. |
| 4) Improve functionality of existing systems. |
| 5) Implement security and data protection solutions. |
| 6) Assess and prioritize feature requests. |
| 7) Coordinate with internal teams to understand user requirements and provide technical solutions |
| 8) Debugging programs and integrating applications with third-party web services. |
Basic Qualifications:
- 2+ years of non-internship professional software development experience
- Programming experience with at least one modern language such as Java, C++, or C# including object-oriented design
- 1+ years of experience contributing to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems.
Additional Job requirements
- BS/MS/PhD in Computer Science/Math or equivalent
- BS in computer science or related field.
- 2+ years of relevant professional software development experience: designing, developing, and delivering software written in Java, C#, or C++, web development.
- Knowledgeable in object-oriented design patterns.
- Experience building highly scalable and distributed systems
Preferred Qualifications
- Experience with service-oriented architecture and application/services development
- Passion for performance debugging and benchmarking
- Ability to clearly and concisely communicate with technical and non-technical stakeholders across all levels of the organization
Preferred Notice Period - Less Than 1 Month
Preferred Education - Tier 1 Engineering Colleges - IIT/NIT/DTU or similar
Preferred Work Background - Startup Engineering Experience
Job brief
- We are looking for a Java Developer with experience in building high-performing, scalable, enterprise-grade applications.
- You will be part of a talented software team that works on mission-critical applications. Java developer roles and responsibilities include managing Java/Java EE application development while providing expertise in the full software development lifecycle, from concept and design to testing.
- Java developer responsibilities include designing, developing and delivering high-volume, low- latency applications for mission-critical systems.
Responsibilities
- Contribute in all phases of the development lifecycle
- Write well designed, testable, efficient code
- Ensure designs are in compliance with specifications
- Prepare and produce releases of software components
- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
Requirements
- BS/MS degree in Computer Science, Engineering or a related subject
- Proven hands-on Software Development experience
- Proven working experience in Java development with Spring Framework
- Hands on experience in designing and developing applications using Java EE platforms
- Object Oriented analysis and design using common design patterns.
- Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
- Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate) - Experience in the Spring Framework
- Experience as a Sun Certified Java Developer
- Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC)
- Build large scale enterprise applications.
- Responsible for providing deep technical expertise in designing and delivering end to end high performance, scalable & flexible solutions using Java and Open Stack technologies including Mobility/Responsive Web apps, APIs, application & data Integration, scalable databases, DevOps, Cloud Computing.
- He/ She would be also responsible to experiment, explore and demonstrate application of new technologies by means of conducting quick prototypes to solve business problems. Work with the direction from Solution Architect/ Enterprise Architect and co-create solutions with rest of the IT delivery teams
● Has worked extensively on caching technologies such as Redis, Memcached
● Expert knowledge of computer science, with strong competencies in data structures, algorithms, and software design
● Strong understanding of end-to-end architectures and development frameworks; knowledge across tiers in a multi-tier cloud environment including load balancers, web servers, application containers, data stores, and distributed cache
● Should be strong with Data Structures, Algorithms & OOPs concepts
● Should have a good understanding of database load balancing.
● Can clearly demonstrate an understanding of the Application layer from the OSI model and Presentation layer from the OSI Model.
● Worked on NoSQL databases such as MongoDB
● Designed and developed highly scalable multi-threaded large scale distributed systems
● Well versed with services and microservices architecture
● Usage of containers, virtual machine systems, cloud computing
● Knowledge on Socket would be a big advantage
● Should have a good understanding of how load-balancing works
● Should have an understanding of how CDN works.










