Java Developer

We are looking for a Backend Engineer with strong experience in building scalable, reliable, and high- performance systems. You will work on designing APIs, handling large-scale data, and building robust backend services using Java and Spring Boot.

Principal Duties/Responsibilities

• Design, develop, and maintain backend services and APIs using Java (Spring Boot)
• Build scalable and fault-tolerant systems to handle high traffic and large data volumes
• Design clean and efficient RESTful APIs and service contracts
• Collaborate with frontend, product, and design teams to deliver end-to-end features
• Optimize system performance, latency, and throughput
• Ensure high code quality through testing, code reviews, and best practices
• Debug production issues and ensure system reliability and uptime
• Participate in system design and architectural decisions
• Own services end-to-end, including development, deployment, and monitoring.

Required Skills and Knowledge

• Strong proficiency in Java
• Hands-on experience with Spring Boot / Spring Framework
• Solid understanding of data structures, algorithms, and OOPs concepts
• Experience building and consuming REST APIs
• Strong knowledge of databases:
• Relational (MySQL, PostgreSQL) • Basics of NoSQL (Redis, MongoDB, etc.)
• Understanding of concurrency, multithreading, and JVM internals
• Familiarity with caching strategies (Redis, in-memory caching)
• Experience with Git and version control workflows

Good to Have Experience with deployment strategies:

• Blue-Green deployments
• Canary releases • Rolling deployments
• Exposure to CI/CD pipelines (Jenkins, GitHub Actions, CircleCI, etc.)
• Basic experience with AWS / cloud infrastructure:
• EC2, S3, RDS • Load balancers, auto-scaling
• Experience with Docker and containerization
• Knowledge of microservices architecture and service communication (REST/gRPC, Kafka)
• Familiarity with message queues / streaming systems (Kafka, RabbitMQ)
• Experience with monitoring & observability tools (Prometheus, Grafana, ELK, Datadog)
• Understanding of security best practices (authentication, authorization, OAuth, JWT)

 Required Experience /Qualifications

• 4 years of backend development experience
• BTech / BE Computer Science.

Greetings!!

This is Nayana representing Wissen Technology (www.wissen.com)

Job Opportunity with Wissen Technology for Java Technical Lead at Bangalore

Location

Here is the Job Description for your review:

Location: Bangalore

Experience: 9+ years

Skill – Java Technical Lead

Full-time with Wissen Technology

Hybrid model

Position Overview:

 We are seeking an experienced Java Lead to join our software development team. As a Java Architect, you will be responsible for designing and leading the development of complex Java-based applications, ensuring scalability, performance, and maintainability. You will collaborate with cross-functional teams, including developers, product managers, and stakeholders, to create robust software solutions that meet our business needs.

Key Responsibilities:

Technical Expertise: A Java lead should have a strong background in Java programming and be well-versed in various Java technologies and frameworks. They should be able to provide guidance, solve complex technical problems, and help team members with code reviews and best practices.

Team Management: Java leads are responsible for managing their development team. This includes tasks like task assignment, project planning, tracking progress, and ensuring that the team adheres to coding standards and follows best practices.

Architecture and Design: They often participate in the architectural and design phases of software development, making high-level decisions about the project's structure, technology stack, and design patterns.

Code Reviews: Regularly reviewing the code written by team members to ensure it meets quality standards, is maintainable, and follows the project's design and coding guidelines.

Mentoring and Training: Providing guidance and mentorship to junior developers, helping them grow their skills, and organizing training sessions to keep the team up-to-date with Java advancements.

Problem Solving: Being able to troubleshoot technical issues and challenges that may arise during the development process.

Communication: Good communication skills are essential for a Java lead. They need to coordinate with other team leads, project managers, and stakeholders to ensure smooth project execution and to report progress.

Project Management: While not always the primary project manager, Java leads often have a role in project planning and tracking to ensure that projects are delivered on time and within scope.

Required Skills:

• Experience in Core Java 5.0 and above, CXF, and Spring.

• Experience in spring boot, and microservices.

• Extensive experience in developing enterprise-scale n-tier applications for the financial domain.

• 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, preferably Sybase database.

• Good knowledge of multi-threading and high-volume server-side development.

• Experience in sales and trading platforms in investment banking/capital markets.

• Basic working knowledge of Unix/Linux

• Excellent problem-solving and coding skills in Java

• Strong interpersonal, communication, and analytical skills.

• Should have the ability to express their design ideas and thoughts.

Desired Skills:

• Prior experience in the Banking & Finance domain is preferred

• Experience in AWS/Azure or any other cloud platform

About Wissen Technology:

Wissen Technology is a 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 US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of 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 1300+ 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.

Career Progression:

At Wissen Technology, your career growth is important for us. Therefore, we put in several efforts towards each employee’s career progression – to enable and empower them to grow within the company as well as to instil a sense of responsibility, loyalty, and trust.

There have been instances where a software engineer has grown from being an individual contributor to a technical lead and now on the path to becoming a director responsible for growing revenues and profitability. We deeply value Ownership: taking responsibility, making it happen, not letting the ball drop, and being accountable.

Website : www.wissen.com

Why Wissen? : https://www.youtube.com/watch?v=K87DADzVT7g

Wissen Thought leadership: https://www.wissen.com/articles/

Latest in Wissen in CIO Insider :

https://www.cioinsiderindia.com/vendor/wissen-technology-setting-new-benchmarks-in-technology-consulting-cid-1064.html

Employee Speak:

https://www.ambitionbox.com/overview/wissen-technology-overview

LinkedIn: https://www.linkedin.com/company/wissen-technology

About Wissen Interview Process:

https://www.wissen.com/blog/we-work-on-highly-complex-technology-projects-here-is-how-it-changes-whom-we-hire/

More on Wissen:

https://www.wissen.com/blog/wissen-is-a-great-place-to-work-says-the-great-place-to-work-institute-india/

https://www.wissen.com/blog/here-is-what-ownership-and-commitment-mean-to-wissenites/

Regards, 

Nayana KM 

Principal Consultant - Talent Acquisition  

Wissen 

W www.wissen.com 

1. Ability to work in a fast-paced environment with minimal supervision
2. Experience in Agile development using JIRA, GIT,  Confluence.
3. 3+ years of Experience in  node.js + Express.
4. Experience in profiling, debugging & troubleshooting Node.js processes.
5. Strong Experience as a backend developer for REST API design.
6. Strong knowledge of SQL/NoSQLdatabases like  PostgreSQL / MySQL or MongoDB
7. Understanding accessibility and security compliance
8. Understanding fundamental design principles behind a scalable application.
9. User authentication and authorization between multiple systems, servers, and environments.

What 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

We are seeking extremely smart & independent senior developers who are gung ho about building large scale systems that are going to have a big impact on millions of customers. You will:

Responsibilities:

• Lead design and development of products working closely with business team.
• Independently own software components and co-own entire applications with a small group of fellow developers.
• Formally mentor junior software engineers on the team, reviewing design documents, (peer) reviewing code, providing design direction and guidance.
• Build performant, scalable, yet secure, enterprise ready back end architectures that can support millions of users in parallel.
• Establish strong engineering best practices and champion their adoption.

Requirements:

• 4+ years' experience in software product development and delivery.
• Bachelors or Masters degree in engineering (preferably computer science or sister branches) from a reputed institute (preferably IITs, NITs, or other top engineering institutes).
• Strong grasp of CS fundamentals, algorithms and excellent problem-solving abilities.
• All experience should be from good product development or e-commerce background.
• Able to take ownership of working with at least one of mobile or web app teams for complete integration with backend.
• Must have shown good stability in all your previous associations.
• Have strong backend knowledge and cloud development exposure.
• Proficiency in Java, Spring boot, Hibernate, REST API development.
• Worked with at least 1 RDBMS (Mysql preferred).
• NoSql is a plus.
• Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
• Writing high quality code which is made better by unit tests and integration tests is how you work.
• Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
• Knowledge of test driven development and AWS tech stack will be a good plus.

Responsibilities

• Understand existing business operations tool used by customer support and business teams.
• Work with Engineering Manager to upgrade the system to improve system stability and response times.
• Independently lead design and implement new features as per business requirements provided by Product Management team.
• Develop elegant, modular and maintainable solutions. Document all design, operations steps for knowledge sharing purposes.
• Guide junior team members on feature implementation and provide relevant training on existing modules.

Must-know Technologies

• Java EE
• Java Server Facelets (JSF)
• Java Persistence API (JPA), Hibernate
• SQL
• HTML, CSS, JavaScript
• Payara/GlassFish/similar application server environments

Preferred Skills

• 2-8 years of overall experience in software design and development.
• Ability to analyze existing application, implement new features and re-architect the application in case of inefficiencies.
• Strong object-oriented skills and ability to apply design patterns.
• Experience mentoring junior engineers on development, code review, project planning.

· 3+ years java development experience with JSE/JEE, Java based Micro-services framework and implementation, Spring framework, Hibernate framework, SQL etc

· Hands on experience on Spring boot & Microservices .

· Strong knowledge of micro-service logging, monitoring, debugging and testing

· Implementations experience of micro-service integration, packaging, build automation and deployment.

· Object Oriented analysis and design using common design patterns.