Java Backend Developer (AVP Role)
at one of the world's leading multinational investment bank
Java
Spring Boot2. Data structure (HashMap, treemap, arraylist, linklist),
3. Streaming concepts (partitioning), Junit
4. Exception handling and workflow, Test coverage (why its important, how it gets handled at
java and spring layer, morckito library if the candidate knows that would be great),
5. OOPS concepts (inheritance),
6. Threading (mutex, threadpool, threading implementation, singleton factory, builder pattern,
abstract)
7. Real world problems (atleast 1 to be asked in IAAS interview) (movie ticket booking, parking
booking), To be asked to only selected candidates: Puzzle (probability/)
8. Memory management: Garbage Collection (GC), Heap dump, Thread dump, apache, google
library.
9. Spring frameworks and database. Data lakes, star lakes, schemas, indexing, partitioning,
optimize query, hibernate.
10. Data warehouse vs nosql vs time series database (KDB, DB2), data storage patterns.
11. Types of transaction control. Column level.
12. Query formation, grouping, nested queries, joints (inner joints, outer joints)
13. If candidate has spring exp: Architecture and various layers of Spring, coupling concepts,
dependency injections, inheritance, Bean level, JMS connection pooling concepts, Lambda,
Annotation vs XML, Kafka, Hibernates.
14. Good to have AI/ML inclination.
Bifurcation of Must have and good to have skills:
Must have skills Good to have skills
Core java (60%), spring (15%), and databases
(15%).
Mockito library
Data structure (HashMap, tree map, array list,
link list)
Threadpool
Streaming concepts (partitioning) Memory management
Exception handling Lambda, Annotation vs XML, Kafka, Hibernates
OOPS GCP or any cloud technology
Threading (singleton factory, builder pattern) AI/ML inclination
Real world problems (movie ticket booking,
parking booking)
Spring frameworks and database (indexing,
partitioning, layers of Spring, JMS connection)
Data warehouse vs NoSQL vs time series
database
Junit
Shubham Vishwakarma
Full Stack Developer - Averlon
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JavaSpring BootBackend SDE II
Responsibilities
- Software Engineering
- Design and develop highly scalable, available, reliable, secure and fault tolerant
systems with minimal guidance for a market leader in the logistics industry
- Partner with team members on functional and nonfunctional requirements and
spread design philosophy, goals and improve the code quality across the team
- Research new technologies and tools that enable building the next generation of
our services
- Provide technology leadership to the team and foster engineering excellence
- Product Delivery
- Partner with product managers to define and execute on the feature roadmap
- Translate business requirements into scalable and extensible design
- Coordinate with various cross functional teams on planning and execution
- Maintaining automated build / test / deployment environments
Qualifications
- Software Engineering
- Should have at least 3 years of hands on experience in designing, developing,
testing and deploying applications on Java, Ruby, Kotlin, Python, Node or Go for
large scale applications
- Deep knowledge of one of the programming language they have experience in
- Proficient in OOP and Design Patterns, experience with functional programming
would be a plus
- Data modelling experience in Relational Databases
- Ability to design and implement low latency RESTful services
- Product Delivery
- Ability to scope, review and refine user stories for technical completeness and to
alleviate dependency risks.
- Well versed in working with agile methodologies which includes phases such as
design, development, code review, testing and release management
- Ability to have worked in a CI/CD environment, with hands on experience with Git
or any similar source code management tools
- Product Maintenance
- Experience troubleshooting server performance issues such as memory tuning,
GC tuning, resource leaks etc
- Continuously refactor applications to ensure high quality design
Technologies Used
Below are few of the technologies that we work on:
Type Technology
Web Application Framework Ruby on Rails, Ktor, AWS Lambda
Languages Ruby, Java, Kotlin, Javascript, Python
Datastores PostgreSQL, Aerospike, Redis, Amazon Redshift, DynamoDb
Communication HTTP, Amazon SQS, Sidekiq, Amazon SNS
Server Management Amazon ECS, Docker
Product Overview
● You will be contributing to products concerning both customers and partner drivers.
● Product sectors include:
○ Growth: You’ll build tools to help boost user growth on the platform including our
industry best driver on-boarding, training and certification system, referral
system, and lead management models.
○ Lifecycle Management: Build tools to help users engage with the platform
better, which includes rewards and recognition module, subscription service,
account management tools, partner and customer wallets and payout modules,
and churn detection systems among others.
○ Transaction Experience: You’ll help deliver the most delightful booking
experience to our customers and drivers. As part of this team, you’ll be
responsible for our core booking system, pricing and payment systems, location
tracking and filtering services, fraud prevention systems, and in-app ticketing and
support among others.
○ Fulfilment: As part of the fulfilment team, you’ll work on systems which ensure
high degree of ride fulfilment on the platform. Tools including allocation
methodologies and system, dynamic pricing, dynamic partner routing, and
partner re-activation tools among others.
○ Enterprise Solutions: You’ll help Porter’s enterprise customers achieve delivery
excellence. You’ll build tools for contract management, fleet management, fleet
and route optimisation tools, alerting and monitoring tools, and analytics suite
among others.
JavaSpring Boot
Amazon Web Services (AWS)Responsibilities
- Provide technology contributions in
- Working in an agile development environment
- Translating business requirements into low-level application design
- Application code development through a collaborative approach
- Doing Full-scale unit testing
- Applying test-driven and behaviour-driven development (TDD/BDD) QA concepts
- Applying continuous integration and continuous deployment (CI/CD) concepts
Soft Skills
- Should be able to contribute as an individual contributor
- Should be able to execute his/her responsibility independently
- Excellent problem-solving skills and attention to detail.
- Focus on self-planning activities
- Firm with communication skills
Mandatory Skills
- Java, Spring Boot, Python and relational / non-relational databases
- Container orchestration - Kubernetes, Docker
- Development experience in Linux environment
- Modern SDLC tooling (Maven, Git)
- Micro services design-oriented application development and deploying the same using Container orchestration in the cloud environment
- Understanding CI/CD pipeline & related system development environment
Nice-to-have Skills
- Front-end technologies (JavaScript, HTML5, CSS, Angular)
PythonAbout the Role :
We are seeking an experienced Python Backend Lead to design, develop, and optimize scalable backend solutions.
The role involves working with large-scale data, building efficient APIs, integrating middleware solutions, and ensuring high performance and reliability.
You will lead a team of developers while also contributing hands-on to coding, design, and architecture.
Mandatory Skills : Python (Pandas, NumPy, Matplotlib, Plotly), FastAPI/FlaskAPI, SQL & NoSQL (MongoDB, CRDB, Postgres), Middleware tools (Mulesoft/BizTalk), CI/CD, RESTful APIs, OOP, OOD, DS & Algo, Design Patterns.
Key Responsibilities :
1. Lead backend development projects using Python (FastAPI/FlaskAPI).
2. Design, build, and maintain scalable APIs and microservices.
3. Work with SQL and NoSQL databases (MongoDB, CRDB, Postgres).
4. Implement and optimize middleware integrations (Mulesoft, BizTalk).
5. Ensure smooth deployment using CI/CD pipelines.
6. Apply Object-Oriented Programming (OOP), Design Patterns, and Data Structures & Algorithms to deliver high-quality solutions.
7. Collaborate with cross-functional teams (frontend, DevOps, product) to deliver business objectives.
8. Mentor and guide junior developers, ensuring adherence to best practices and coding standards.
Required Skills :
1. Strong proficiency in Python with hands-on experience in Pandas, NumPy, Matplotlib, Plotly.
2. Expertise in FastAPI / FlaskAPI frameworks.
3. Solid knowledge of SQL & NoSQL databases (MongoDB, CRDB, Postgres).
4. Experience with middleware tools such as Mulesoft or BizTalk.
5. Proficiency in RESTful APIs, Web Services, and CI/CD pipelines.
6. Strong understanding of OOP, OOD, Design Patterns, and DS & Algo.
7. Excellent problem-solving, debugging, and optimization skills.
8. Prior experience in leading teams is highly desirable.
JavaSpring Boot- Good design skills and exposure to multiple software architectures.
- Strong understanding of OO/ knowledge of frameworks such as Spring/ Spring Boot/ design and good software development practices.
- Strong core server-side technologies experience (Java).
- Knowledge of Android is a huge plus.
- Strong database skills including schema design.
- Strong knowhow of data-structures and algorithms.
- Experience with configuration management, testing, deployment.
- Hands on development across technologies.
JavaSpring BootWhat You will do
● Create beautiful software experiences for our clients using design thinking, lean and agile methodology.
● Work on software products designed from scratch using the latest cutting edge technologies, platforms and languages such as JAVA, python, Javascript, GoLang and Scala.
● Work in a dynamic, collaborative, transparent, non-hierarchical culture.
● Work in collaborative, fast-paced and value-driven teams to build innovative customer experiences for our clients.
● Help to grow the next generation of developers and have a positive impact on the industry.
Basic Qualifications
● Experience: 4+ years.
● Hands-on development experience with a broad mix of languages such as JAVA, Python, Javascript etc.
● Server-side development experience mainly in JAVA, (Python and nodeJS can be considerable)
● UI development experience in ReactJS or AngularJS or PolymerJS or EmberJS or Jquery etc. are good to have.
● Passion for software engineering and follow the best coding concepts. ● Good to great problem solving and communication skills.
Nice to have Qualifications
● Product and customer-centric mindset.
● Great OO skills, including design patterns.
● Experience with devops, continuous integration & deployment.
● Exposure to big data technologies, Machine Learning and NLP will be a plus.
Benefits
● Competitive salary.
● Work from anywhere.
● Learning and gaining experience rapidly.
● Reimbursement for basic working set up at home.
● Insurance (including a top up insurance for COVID).
Location
Remote - work from anywhere
JavaSpring BootEgen is a data engineering and cloud modernization firm helping industry-leading companies achieve digital breakthroughs and deliver for the future, today. We are catalysts for change who create digital breakthroughs at warp speed. Our team of cloud and data engineering experts are trusted by top clients in pursuit of the extraordinary. An Inc. 5000 Fastest Growing Company 7 times, and recently recognized on the Crain’s Chicago Business Fast 50 list, Egen has also been recognized as a great place to work 3 times.
You will join a team of insatiably curious data engineers, software architects, and product experts who never settle for "good enough". Our Java Platform team's tech stack is based on Java8 (Spring Boot) and RESTful web services. We typically build and deploy applications as cloud-native Kubernetes microservices and integrate with scalable technologies such as Kafka in Docker container environments. Our developers work in an agile process to efficiently deliver high value data driven applications and product packages.
Required Experience:
- Minimum of Bachelor’s Degree or its equivalent in Computer Science, Computer Information Systems, Information Technology and Management, Electrical Engineering or a related field.
- Have experience working and strong understanding of object-oriented programing and cloud technologies
- End to end experience delivering production ready code with Java8, Spring Boot, Spring Data, and API libraries
- Strong experience with unit and integration testing of the Spring Boot APIs.
- Strong understanding and production experience of RESTful API's and microservice architecture.
- Strong understanding of SQL databases and NoSQL databases and experience with writing abstraction layers to communicate with the databases.
Nice to have's (but not required):
- Exposure to Kotlin or other JVM programming languages
- Strong understanding and production experience working with Docker container environments
- Strong understanding and production experience working with Kafka
- Cloud Environments: AWS, GCP or Azure
JavaSpring Boot- 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.
Spring BootJavaDropwizard or Springboot like technology
Algorithms and Data structures .
JavaThe ideal candidate should be a proactive individual with strong communication skills and a team player. He or she should have an experience of at least 1-2 years in Java development.
Should have hands-on experience in the following:
- Hands on experience in designing and developing applications using Java EE platforms and at least 1-2 years’ experience on the same.
- Should have excellent in-depth knowledge on Core Java
- Experience in multi-threaded server-side Java programming
- Working knowledge on web services.
- Working knowledge on hibernate and springs framework.
- Added advantage if worked in any of the BPM tools
- Should have worked in SDLC environment.
- Good communication skills.
- Experience in working effectively within a team.
Java Building highly-scalable and secure payments platform
Primary owners of one or more components of the platform and will drive
innovation in your area of ownership
Working with various product teams gathering requirements and adding capabilities
Working with some of the smartest people in the industry and will have ample
opportunity to learn and grow
Using cutting-edge cryptography to secure payments beyond industry standards
Deriving actionable insights by mining TBs of data
Building low-level infrastructure that aims to push the boundaries of network
performance
Participating actively in recruitment and nurturing of engineers as awesome as you.
What do we look for?
If you spend time cracking NP hard problems rather than cracking nuts, you are the
most laziest person and automates everything, you appreciate beauty of code
(bonus if you can sing “Finite simple group of order 2”), you should apply in t=0
Good understanding of Databases
Good understanding of networking (especially with HTTP)
Good understanding of OS concepts
2-4 years of experience
Should have hands on development experience with Object Oriented Programming
(Java is highly preferred) on a large scale system
Understands and showcase ownership of the products
Good with concepts of scaling and worked with distributed systems
Review and influence new evolving design, architecture, standards and methods
with stability, maintainability and scale in mind
Identify patterns and provide solutions to class of problems
Research, evaluate and socialize new tools, technologies, and techniques to improve
the value of the system
Be able to multi-task, prioritize and handle dependencies with minimal oversight
Follow CutshortShubham Vishwakarma
Full Stack Developer - Averlon