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JOB DESCRIPTION
Experience: 3-5 years
Wissen Technology is now hiring for a Senior 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.
Required Skills:
- Exp. - 3-5 years
- 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
● Complete ownership of the components that one works on - starting from
architecture design to monitoring metrics post deployment
Strong bias for action with a problem solving mindset. Meeting current
requirements or resolving issues while keeping bigger picture in mind.
● Thinking big while designing components. Keeping in mind that if we build our
current version for x users, it will be 10x within a year & 100x within 1.5 years
hands on experience in software development with excellent
problem-solving skills.
● Hands on experience on building highly-available, scalable systems.
● Expertise in Java with data structures, algorithms, spring, hibernate skills.
● Knowledge of NoSQL, MongoDB, caching data stores, queuing and search.
● Proficiency in computer science fundamentals: Object oriented design, data
structures, algorithm design, and complexity analysis.
● Good with the design patterns and architecture solution to large scale
applications.
● Nice to have: Cassandra, Kafka, Aerospike development experience with highly
scalable and performant software systems.
Requirements
• Extensive and expert programming experience in at least one general programming language (e. g.
Java, C, C++) & tech stack to write maintainable, scalable, unit-tested code.
• Experience with multi-threading and concurrency programming.
• Extensive experience in object oriented design skills, knowledge of design patterns, and a huge passion
and ability to design intuitive modules and class-level interfaces.
• Excellent coding skills - should be able to convert design into code fluently.
• Knowledge of Test Driven Development.
• Good understanding of databases (e. g. MySQL) and NoSQL (e. g. HBase, Elasticsearch, Aerospike etc).
• Strong desire to solve complex and interesting real world problems.
• Experience with full life cycle development in any programming language on a Linux platform.
• Go-getter attitude that reflects in energy and intent behind assigned tasks.
• Worked in a startup-like environment with high levels of ownership and commitment.
• BTech, MTech or Ph. D. in Computer Science or related technical discipline (or equivalent).
• Experience in building highly scalable business applications, which involve implementing large complex
business flows and dealing with huge amounts of data.
• 3+ years of experience in the art of writing code and solving problems on a large scale.
• Open communicator who shares thoughts and opinions frequently, listens intently, and takes
constructive feedback.
Technical Overview:
● You will be expected to design, develop and maintain large-scale complex backend web applications.
● You will be expected to rapidly learn and apply relevant new technologies.
● You will be having a high level of interaction with business and product stakeholders.
● You will be working on the entire web application stack, which includes:
o Web server hosting
o RESTful communication
o Message brokering
o Backend application layer, which includes the service and domain layers
o Data layer for persistence or caching
● You will be participating in an agile software development cycle, which includes:
o Design
o Development
o Code Review
o Unit and Integration Testing
o Release
● As a Staff Engineer, you will be expected to contribute to design, code review, refactoring, and project management.
● You will be exposed to the following technologies:
o Web application frameworks: Ruby on Rails, Node.js, Java Play, Vert.x, AIOHTTP, AWS Lambda
o Languages: Ruby, Java, Kotlin, Javascript, Python
o Data stores: PostgreSQL, Aerospike, Redis, Amazon Redshift
o Communication: HTTP, Amazon SQS, Sidekiq, Amazon SNS
o Server Management: Amazon ECS, Docker
Product Overview:
You will be contributing to products concerning both customers and partner drivers.
Product sectors include:
1) Growth: You’ll build tools to help boost user growth on the platform including our industry-best driver onboarding, training and certification system, referral system, and lead management models.
2) Lifecycle Management: Build tools to help users engage with the platform better, which include rewards and recognition modules, subscription services account management tools, partner and customer wallets and payout modules, and churn detection systems among others.
3) 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.
4) Fulfilment: As part of the fulfillment team, you’ll work on systems that ensure a high degree of ride fulfillment on the platform. Tools include allocation methodologies and systems, dynamic pricing, dynamic partner routing, and partner re-activation tools among others.
5) Enterprise Solutions: You’ll help Porter’s enterprise customers achieve delivery excellence. You’ll build tools for contract management, fleet management, fleet and route optimization tools, alerting and monitoring tools, and analytics suite among others.
- Java development knowledge is a must
- Springboot preferred
- 2.AWS exposure is a must
- Engineering degree in Computer Science, Electronics and, Communication or Information Science.
- Or MCA is agreeable.
- Location: Bangalore
2) Strong experience with Spring and Spring Boot, Spring MVC, Spring Data, Spring Security
3) Experience building REST and SOAP web services using Java, Micro Services
4) Experience with Web Services (JSON, REST, Spring based REST services)
5) Experience with Java and J2EE/Java EE (including servlets, JSP, JDBC)
6) Strong Core Java development
7) Experience with development tools like Eclipse, Git,.etc
8) Experience with web application servers like Tomcat
9) Experience in scripting and working in a Linux/Windows environment
knowledge of Java and Spring.
• Familiarity with:
• SQL and noSQL databases
• Kubernetes, Docker, Helm
• Message/Streaming Technologies: Kafka, Kinesis, JMS, etc
• Unix Shell Scripting
• Microservices Architecture
• AWS, GCP, or Azure
• Experience in modern software development methodologies and technologies:
Scrum, Jira, Git
• Ability to handle full application development cycle from requirements to
production.
• A dedication to positive team collaboration
We are looking for Tech geeks having hands-on experience and in love with building scalable, distributed and large web/mobile products and tech solutions. He/She must be an excellent problem solver with passion to self-learn and implement web technologies (frontend + backend). He/She would be responsible for the architecture design, code review, and technology build and deployment activities of the product.
Required Skills :
1. Experience in Core Java, Hibernate, Spring, SQL.
2. Hands-on experience with, Collections, Algorithms, Problem Solving.
3. Knowledge of repository tools such as GitHub.
4. Willing to work on additional tasks and responsibilities that will contribute towards team, department, and company goals.4. Work collaboratively within a team of other engineers.
5. Good programming and debugging skills.
Benefits :
> Health Insurance
> Work from Home
> Fast growth and more visibility into the company
> Experience to work on the latest technology
> Competitive Learning Environment with supportive co-workers
> Employee friendly HR Policies
> Paid leaves up to certain limits
> Competitive salaries & Bonuses
> Liberal working atmosphere
> Get mentored by the best in the industry
Work Schedule:
Day Shift/Flexible working hours
Monday to Friday
1. Be a visible leader to drive and own the architecture and design of some of the most advanced & complex software systems / products in the industry to create company wide impact
2. Design systems that can scale to billions of data records in micro service architecture
3. Design and develop full stack product features based on customer and business requirements
4. Be an operational and technical leader with a passion for distributed systems, cloud service development, deployment and delivery
5. Technically Hands-on with scalable Architecture managing team of (30+) Sr. Engineers / Engineers, and coaching mentoring while maintaining a hands-on role with code development
6. Drive code and design reviews of components / systems / products in scope and drives the architectural governance for them
7. Set directional paths for the teams/department for adoption of new technology stacks for solving business problems
8. Be a very visible representative of multiple technology domains and represent Salesken in external technical forums
9. Teamwork skills, flexibility, and ability to handle multiple tasks
10. Bring in software engineering life cycle best practice
11. Analytical and problem-solving skills
Desired Candidate Profile
1. Strong Java, Java 8 including OOAD design patterns
2. A solid engineer with must have knowledge and experience of Micro services design, security designs, and best practices
3. Excellent knowledge and skills in the areas of Java, Spring Boot, JSP/Servlet, J2EE design patterns, App server & Web servers
4. Strong hands-on technology experience building and running large scale systems handling multi-million sessions/transactions per day
5. Excellent knowledge of RDBMS, NoSQL databases like MySQL and Cassandra
6. Strong design/development experience in building massively large scale distributed internet systems and products
7. Excellent programming skills in Java and expertise in multi-threading and performance oriented programming
8. Sound knowledge of cloud platforms like GCP, AWS, Azure, etc
9. Solid experience in Distributed systems, highly scalable products, performance & reliability
10. Excellent understanding of processing platforms and queues
11. Excellent understanding of standard protocols such as HTTP/HTTPS, DNS, SSL, etc
12. Experience and knowledge of open source software, frameworks and broader cutting edge technologies around server side development in Java








