Java Developer

JOB DESCRIPTION

Experience: 4-7 years

Location: Mumbai

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. 

Required Skills:

• Exp. - 4-7 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.

We are solving complex technical problems in the financial 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.

Job Description: 

• Experience in Core Java, Spring Boot.

• Experience in microservices.

• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.

• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.

• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2

• Good knowledge of multi-threading

• Basic working knowledge of Unix/Linux

• Excellent problem solving and coding skills in Java

• Strong interpersonal, communication and analytical skills.

• Should be able to express their design ideas and thoughts.

About Wissen Technology:

Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen hassuccessfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.

Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.

Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.

Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.

We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

Job Title: Backend Developer (Kotlin/Java)

Experience: 5-7 Years

Location: Remote (Candidates from Pune/Mumbai preferred for training-related travel)

Salary: ₹15-25 LPA CTC (1L up to 1.5L In hand Per Month)

Job Description:

We are seeking a highly skilled Backend Developer with expertise in Kotlin/Java (not Android) to join our dynamic team. The ideal candidate will have experience building scalable backend solutions, working with relational databases, and utilizing modern frameworks like Spring and Webflux.

This is a remote role, but candidates based in Pune/Mumbai who can travel for training purposes will be preferred.

• Must-Have Skills:Kotlin/Java backend development (5+ years)
• Spring Boot/Webflux (Reactor) (1+ year)
• Relational Databases (PostgreSQL preferred) (2+ years)
• Strong problem-solving skills and attention to detail
• Excellent communication skills and professionalism

• Key Responsibilities:Develop and maintain backend services using Kotlin/Java.
• Design and implement scalable microservices with Spring Boot/Webflux (Reactor).
• Work with relational databases (PostgreSQL preferred) and ensure optimal data handling.
• Optimize backend performance and ensure system reliability.
• Collaborate with frontend, DevOps, and product teams to deliver high-quality software solutions.
• Ensure best practices in coding, security, and system design.

• Nice to Have:Experience with NoSQL databases (Cassandra/MongoDB)
• Knowledge of Kafka for event-driven architecture
• Familiarity with AWS, Docker for cloud-based deployments
• Exposure to full-stack development with React
• Understanding of ClickHouse for analytics

Company:

The client is a technology company specializing in custom software development, mobile app creation, cloud services, data analytics, applied AI, cybersecurity, web design, and UX/UI design. They emphasize building robust, scalable, and world-class software products and applications. Their expertise spans various technology stacks, including MERN, MEAN, applied AI, Oracle, AWS, GCP, Microsoft Azure, and PAAS. They have developed products such as Digirestro, Task Manager, and Attendance Management. The company operates from multiple locations, including Pune and Nagpur in India, and Kendall Park, New Jersey, USA.

• Why Join Us?Competitive salary (₹15-25 LPA)
• Remote work flexibility (with occasional travel to Pune/Mumbai for training)
• Opportunity to work on modern tech stacks
• Collaborative and professional work environment

Job Role:

As a senior R&D Java Engineer, you will work in a highly collaborative, dynamic environment. Your work will impact a lot to make world bit safer place. You’ll design creative solutions to problems faced by companies due to cyber attacks. You will work closely with other partners such as product and pre-sales managers, UI developers, and other software engineers to develop new product offerings and improve the efficiency of the solution.

Responsibilities:

• Develop, modify, and implement, the software components of Nimesa Product.
• Assist QA Engineers with the creation and review of the test cases
• Write junits and test automation if anything required to have the coverage
• Assist other Engineers with the creation of detailed software design specifications.
• Keep an eye out for technology trends, and open-source projects that can be used.

Requirements:

• Bachelor's or Master's degree in computer science or relevant fields.
• At least 3+ years experience in end-end software development for large design and coordinating project teams in the SaaS industry.
• Software development experience with Java and Spring / Springboot, RabbitMQ, MYSQL etc
• Must have worked on fairly complex products from scratch
• Strong knowledge of data structure, multithreading and other comp science concepts (SQL or NoSQL)
• Excellent social and communication skills
• Demonstrated expertise in building Web Applications, Enterprise Applications, Web Services, and Management at scale is a requirement.
• Experience with Design patterns
• Knowledge of cloud-based architectures, deployment and operational aspects of Amazon Web Services cloud

Java developer roles will vary greatly depending on companies and job positions. Here are some typical roles and responsibilities of java developers:

• Contribute to all stages of software development lifecycle
• Design, implement and maintain Java-based applications that can be high-volume and low-latency
• Analyze user requirements to define business objectives
• Envisioning system features and functionality
• Define application objectives and functionality
• Ensure application designs conform with business goals
• Develop and test software
• Identify and resolve any technical issues arising
• Create detailed design documentation
• Propose changes to current Java infrastructure
• Develop technical designs for application development
• Develop multimedia applications
• Write well designed, testable code
• Conducting software analysis, programming, testing, and debugging
• Manage Java and Java EE application development
• Develop documentation to help users
• Transforming requirements into stipulations
• Prepare and produce releases of software components
• Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review

Must have experience on Java, Spring MVC / Boot, Hibernate / MyBatis 

- Must have experience on building large scale application 

- Must have experience on RESTful Web-Services 

- Must be good in problem solving, Data structures and Algorithms. 

- Strong understanding of Web Architectures, E-commerce solutions 

- Strong understanding of any MySql / Postgresql 

- Strong understanding of any Redis / Memcached / Mongodb / Elasticsearch 

- Hands-on experience on GCP / AWS would be an added advantage 

- Hands-on experience on Kubernetes / Docker would be an added advantage 

- Basic knowledge of version control system like Git / Mercurial / Bitbucket 

- Writes well managed and clean codes 

We are looking for Advance Java developers who want to help us design cutting edge scalable products to meet our rapidly growing business. We are building out a team and looking for multiple levels but you should have at least 6+ years of programming experience.

Key Responsibilities

• Build high availability and extreme reliable high volume transactional systems.
• Deliver reliable solutions that handle massive data and high traffic.
• Complete ownership of problem-free execution of owned modules and solutions.
• Focus on code optimization, code quality, maintainability etc.

Skills required

• Hands-on experience in Core J2EE or Core Java (collection, multithreading).
• Proficiency in Spring, Hibernate, Kafka, JDBC.
• Excellent data structure & algorithm and problem solving skills.
• Strong working knowledge of Databases – MySQL/NoSQL, OS - Windows/Linux.
• Experience and knowledge of open source tools & frameworks, broader cutting edge technologies around server side development.
• Should be an active contributor to developer communities like Stackoverflow, Topcoder, Github, Google Developer Groups (GDGs).
• Customer-focused, react well to changes, work with teams and able to multi-task.

Senior Software Engineer, Java/Python (Bangalore, Remote option available)

4+ years of experience 

Zepto 

Why should you look at this role?

Salary 40-55 lakh per annum

Paid leave

Sick leave

Provident Fund

What Else?

• High growth startup in quick commerce space (10 min delivery)
• Given our very high hiring bar, we offer a very competitive salary and substantial equity to create everlasting wealth for our early believers as the company grows.
• Work on real world logistics problems & benefit from the rocket ship Zepto is!

Tech Team: 40-50 (200+ in few months)

About the Employer

Zepto is a fast-growing startup that delivers products in 10 minutes through an optimised network of dark stores that we're building across the country!

Just 6 months after launching, we've raised $160 million from marquee

investors in Silicon Valley and India. Our investors include Y Combinator, Nexus Venture Partners, and many more! We’ve built out one of the best startup teams in India, with Senior Executives from Uber, Flipkart, Dream11, PhonePe, Goldman Sachs, Pepperfry, and institutions like Stanford, INSEAD, IITs, and IIMs.

The magic of Zepto is our ability to consistently deliver 2,500+ products in 10 minutes flat. It's the core of what we do, and the reason why we’ve been able to grow so fast with phenomenal customer love. Our mission is simple: to make 10-minute delivery the new normal.

Funding:

Funding Zepto has raised a total of $160M in funding over 3 rounds.

Their latest funding was raised on Dec 20, 2021 from a Series C round.

Employer Reviews:

“High Ownership, Lots of Learning, Broad Roles, Accessible Leaders”

"Alot of benefits like ZeptoJoy coupon, internet bill reimbursement and cab reimbursement is also taken care of. Overtime is paid."

Reporting structure:

Software Engineer -> Sr Software Engineer -> Lead -> EM -> AD / Director / VP -> Head of Engineering -> CTO

This role would be by and large a Individual Contributor role.

Interview Process:

• Round 1. Problem Solving + CS Fundamentals (60 mins)
  • DS/Algo Problems (30 mins) - You can expect 1-2 Leetcode easy/medium questions
  • CS Fundamentals (30 mins)
• Round 2. Low Level Design (60 mins)
  • You would be given a trivial problem and expected to work through the low level design viz class structure, interfaces, db data models etc.
• Round 3. High Level Design (60 mins)
  • You will be given a trivial problem, where we would work with you to design the system for the problem statement. We expect the detailed flow of the Functionality
    • Extract APIs, if any
    • Database choices
    • Schema design and Scale the system, if time permits

What You will do Everyday?

• Work very closely with the Tech Leadership and lead end-to-end development.
• Closely collaborate with product, design and business teams to understand product ideas and business needs and help deliver these as a series of ultra fast experiments.
• Architect and implement backend services with high reliability and scalability.
• Contribute to system architecture and database design.
• Set up best practices for development and champion their adoption.
• Write quality documentation and handle conflicts well to build consensus.
• Learn about new technologies and incorporate them.
• Mentor young minds and foster team spirit

Your Superpowers

• 4+ years of experience with Java frameworks like Spring / Dropwizard/Play or Python frameworks like Django/Flask/FastApi and databases like PostgreSQL/MySQL/MongoDB
• Experience in building highly scalable customer-facing applications that involve implementing complex business flows and dealing with an ever-increasing scale
• Extensive experience in object-oriented design skills, knowledge of design patterns, and huge passion and ability to design intuitive module and class-level interfaces.
• Experience in service-oriented architecture design.
• Experience building at least one application from scratch.
• Experience with cache store/message broker like Redis / RabbitMQ/Kafka
• Interest in learning new languages/framework as needed.
• Worked in a startup environment with high levels of ownership and commitment.
• A growth mindset and passionate about building things from the ground up and most importantly, you should be fun to work with.

• Building components for the company's advanced health tech platform using Java, Solr, SpringBoot, DialogFlow
• Communicating effectively in a cross-functional product development team and present ideas and solutions effectively
• Participating in technical planning and requirements gathering phases including design, code, test, troubleshoot, and document engineering software applications
• Developing the Code as per the requirements
• Working with product team and constructing the tech roadmap
• Designing, building and scaling the company's backend microservices
• Maintaining code integrity and organization
• Applying all quality requirements to make the code production ready
• Developing and deploying new features to facilitate related procedures and tools if necessary
• Developing documentation related to technical aspects and to facilitate current support, development, upgrades, or migrations
• Designing and building efficient, reusable, and reliable Java code
• Pro actively catching and fixing bugs, and providing support for the back end services
• Managing servers and infrastructure by keeping the lights on and refining the deployment architecture

What you need to have:

Job Description

Who are we looking for?

A senior level Java-J2EEE lead to manage a critical project for one of the biggest clients in banking domain. The Individual should be passionate about technology, experienced in developing and managing cutting edge technology applications.
We are looking for people from the trading background

Technical Skills: 

• An excellent tech Lead or application architect with strong experience in monolithic Java legacy applications, modern cloud-native

• Strong hands-on experience in Spring, Core Java specifically on multi-threading, concurrency, memory management process, and fair understanding on network communication & protocols. 

• experience working in software development on low-latency and high performing systems

• Experienced to guide & mentor the offshore team members, validating application deliverables on regular basis

• Ability to work in a collaborative manner with peers across different time zones. 

• Passionate about good design and code quality and have strong engineering practices

• Experience working on GCP will be preferred. 

Process Skills: 

• Experience in analyzing requirements and develop software as per project defined software process
• Develop and review design, code
• Develop and document architecture framework, technical standards, and application roadmap
• Guide development teams to comply with the architecture and development standards and ensure quality application is designed, developed, and delivered
• Must   have excellent communication skills.

Behavioral Skills:

• Resolve technical issues of projects and Explore alternate designs
• Effectively collaborates and communicates with the stakeholders and ensure client satisfaction
• Mentor, Train and coach members of project groups to ensure effective knowledge management activity.

Certification:

• Ultimate sun Java and GCP Certified