Java Architect

JOB DESCRIPTION

Experience: 3-8 years

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. - 3-8 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.

WHAT YOU'LL WORK ON

• Design and implement scalable APIs and microservices using Node.js & Express
• Manage deployments via GitHub Actions and CodeDeploy; work with Docker & AWS
• Optimize MongoDB queries and use Redis caching for high-concurrency traffic
• Bridge Figma designs to backend logic using Next.js and Tailwind CSS
• Maintain monitoring with Nginx & PM2 to ensure 99.9% uptime

WHAT WE'RE LOOKING FOR

• 1+ year of professional experience building and maintaining production applications
• Deep Node.js knowledge: async programming, RESTful API architecture
• MongoDB mastery: schema design, indexing strategies, complex aggregation pipelines
• Hands-on AWS (EC2/S3 minimum) and practical CI/CD pipeline experience
• Proven ability to take a feature from PRD / Figma to stable production deployment

WHAT WILL MAKE YOU STAND OUT

• Experience maintaining apps with high concurrent user counts
• Comfortable with Nginx configs and Dockerfiles
• Hands-on with payment gateway integration (Cashfree) and webhook handling
• Obsession with maintainable, well-documented, DRY code

AI Usage Policy:

AI tools (Cursor, Copilot, GPT-4) are force multipliers — use them. But you must own your code, reason hrough architectural trade-offs, and debug without relying solely on AI.

HOW TO APPLY:

• Tell us about the most complex bug you've solved or a backend system you built from scratch
• Share your GitHub profile
• Include at least two live project links showcasing your best work
• Your code will directly impact the learning outcomes of thousands of students.

Role Overview

The Senior Adobe Experience Manager (AEM) Developer will lead the design, development, and maintenance of Government of Rajasthan’s portal websites built on the AEM platform. This role involves leading technical solutions, performance optimization, security compliance, and guiding the development team.

Key Responsibilities

• Lead the design and development of complex components and templates in Adobe Experience Manager (AEM).
• Manage AEM configurations, workflows, and permissions for multiple portals.
• Develop and integrate custom OSGi bundles, Sling models, and components.
• Ensure performance tuning, caching strategies, and scalability of AEM solutions.
• Handle dispatcher configuration and optimization for content delivery.
• Collaborate with architects and project managers for solution design.
• Ensure compliance with Safe-to-Host and OWASP security standards.
• Mentor junior developers and review their code for quality.
• Integrate with third-party services (Payment Gateway, SMS Gateway, etc.).
• Manage version control (Git) and deployment pipelines (Jenkins).

Required Skills

• 5+ years of experience in Adobe Experience Manager (AEM 6.3 or above).
• Strong expertise in Java/J2EE, OSGi, Apache Sling, JCR (Jackrabbit Oak).
• Hands-on experience with HTL (Sightly), HTML5, CSS3, JavaScript, jQuery.
• Good understanding of Dispatcher, Apache HTTP Server, and performance tuning.
• Knowledge of REST/SOAP APIs and system integration.
• Familiarity with Git, CI/CD tools (Jenkins).
• Excellent problem-solving and team leadership skills.

Preferred Certifications

Adobe Certified Expert (AEM Sites Developer or Architect).

Overview of the role

As a Node Developer you will be collaborate with cross-functional teams to define, design and build performant modern web applications and services. Build high-quality web applications and services by writing clean and modular code.

Must have skills

• Overall 3-5 Years of experience in writing unit and integration tests to ensure the robustness and reliability of web applications and services.
• Measure and improve the performance of microservices. Catalyse growth within the team through code reviews and pair programming to maintain high development standards
• Investigate operational issues to find the root cause and propose improvements Design, build, and maintain APIs, services, and systems across Stripe’s engineering teams.
• Expert level of experience in the design and development of Web Applications, and highly scalable distributed systems.
• Should have experience in development skills using the latest technologies including NodeJS(fastify framework), Microservices, PostgreSQL, Redis, etc. Should have exposure to NoSQL and SQL development.
• Comprehensive knowledge of physical and logical data modeling, and performance tuning.
• Should possess excellent communication, presentation, and interpersonal skills.
• Ability to work collaboratively and productively with globally dispersed teams.
• Build high-performance teams and Coach teams for successful career growth.
• Experience working with relational and non-relational databases, query optimization, and designing schema

Desired Background

Bachelors/Masters Degree in Computer Science, Information Technology

Responsibilities:

• Design and create services and system architecture for your projects, while working.
• Closely with the product, design and engineering team.
• Participate in brainstorming sessions and contribute ideas to our technology, algorithms and products.
• Dive into difficult problems and successfully deliver results on schedule.
• Own services related to OkCredit features in active development.
• Develop and deploy required services responsible for evolution of the overall product.
• Do server side development in golang/python preferably (or any other language).
• Deploying stuff in production in docker containers.
• Write tests.
• Invent awesome stuff to make your job easier

• Motivation to design and build reliable, elegant backend services.
• At least 2 - 5 years of backend development experience.
• Proficiency in GoLang is MANDATORY.
• Familiarity with infrastructure concepts related to docker, kubernetes is preferred.
• Familiarity with Protocol buffers. Protocol buffers are now OkCredit's lingua franca for data.
• Familiarity with message-oriented middleware like rabbitmq, google pubsub.
• Familiarity with cloud platforms like gcp, aws etc.

• BE/MTech/MCA/MSc
• 3+yrs Hands on Experience in TSQL / PL SQL / PG SQL or NOSQL
• Immediate joiners preferred*
• Candidates will be selected based on logical/technical and scenario-based testing

Note: Candidates who have attended the interview process with TnS in the last 6 months will not be eligible.

1. Technical Skills Desired:
   1. Experience in MS SQL Server and one of these Relational DB’s, PostgreSQL / AWS Aurora DB / MySQL / Oracle / NOSQL DBs (MongoDB / DynamoDB / DocumentDB) in an application development environment and eagerness to switch
   2. Design database tables, views, indexes
   3. Write functions and procedures for Middle Tier Development Team
   4. Work with any front-end developers in completing the database modules end to end (hands-on experience in parsing of JSON & XML in Stored Procedures would be an added advantage).
   5. Query Optimization for performance improvement
   6. Design & develop SSIS Packages or any other Transformation tools for ETL

1. Functional Skills Desired:
   1. Banking / Insurance / Retail domain would be a
   2. Interaction with a client a

1. Knowledge in a Cloud Platform (AWS / Azure)
2. Knowledge on version control system (SVN / Git)
3. Exposure to Quality and Process Management
4. Knowledge in Agile Methodology

1. Soft skills: (additional)
   1. Team building (attitude to train, work along, mentor juniors)
   2. Communication skills (all kinds)
   3. Quality consciousness
   4. Analytical acumen to all business requirements

Job Responsibilities:

1. Collaborate with other senior engineers, and management, to achieve optimal application architecture and design
2. Develop efficient, secure applications, peer-review code, and document solutions within an agile-blended software environment
3. Communicate proactively with team members, infrastructure, security, and quality assurance to continuously improve processes and engineering excellence
4. Guide and train other developers in backend technology
5. Ability to work independently and as a member of a team spread over different time zones

Skills:

1. Understanding of object oriented programming skills and data structures
2. At least 6 years of hands-on development in Java, Springboot & Hibernate
3. Should have experience in Java Multithreading, microservices
4. Experience with developing web applications
5. Expertise with in Core Java (Collections, Exception handling)
6. Experience with J2ee( Servlets, JSPs)
7. Experience with all well known database technology and object-relational mapping, experience with databases (Mysql, Mssql)
8. Knowledge and development background in web-services/REST, AJAX, JSON, and XML
9. Experience with Windows and Linux based environments
10. Experience with Maven and GIT tools
11. Understanding of UI technologies (HTML, CSS, Javascript libraries) would be a plus
12. Good to have – AWS experience and Fintech domain experience
13. Awareness of Jenkins will be a value add