Senior Java Developer

Wissen Technology is looking for experienced Java Developers to join our team in Bangalore!

📍 Location: Bangalore

💼 Experience: 5–7 Years

⚡ Immediate Joiners Only

🔑 Key Skills

Strong experience in Core Java

Strong understanding of OOPs concepts

Hands-on experience with Java Collections

Strong knowledge of Multithreading & Concurrency, DSA (Data Structures & Algorithms), Spring Boot & Microservices, REST APIs, SQL / Database

📌 Please Note: Only candidates currently based in Bangalore can apply, as the interview process includes F2F rounds.

Greetings from NAM Info Pvt Ltd,

Job Title: Senior Java Spring Boot & Microservices Developer

Experience: 7+ Years

Primary Skills: Java 8/10, Spring Boot, Microservices, REST APIs, Kafka

Job Summary

We are looking for an experienced Java Spring Boot & Microservices Developer with 7+ years of hands-on experience in designing, developing, and deploying scalable enterprise applications. The ideal candidate should have strong expertise in Java 8/10, Spring Boot, Microservices architecture, RESTful APIs, Kafka, multithreading, collections, and coding best practices.

Key Responsibilities

• Design, develop, and maintain scalable applications using Java 8/10 and Spring Boot.
• Build and implement Microservices-based applications following industry best practices.
• Develop and integrate RESTful APIs with internal and external systems.
• Implement asynchronous and event-driven solutions using Apache Kafka.
• Write clean, efficient, maintainable, and reusable code.
• Optimize application performance using Java Collections, Multithreading, and Concurrency concepts.
• Troubleshoot, debug, and resolve production issues.
• Participate in code reviews and ensure adherence to coding standards.
• Collaborate with cross-functional teams including Product, QA, DevOps, and Business stakeholders.
• Contribute to architecture discussions and technical design decisions.

Required Skills

• 7+ years of hands-on experience in Java development.
• Strong proficiency in Java 8/10 features (Streams, Lambda Expressions, Optional, Functional Interfaces, etc.).
• Excellent understanding of Java Collections Framework.
• Strong knowledge of Multithreading and Concurrency.
• Hands-on experience with Spring Boot.
• Solid experience in developing REST APIs.
• Strong practical experience in Microservices architecture.
• Hands-on experience with Apache Kafka.
• Good understanding of object-oriented programming (OOP), design patterns, and SOLID principles.
• Strong coding, debugging, and problem-solving skills.
• Experience with Git and Maven/Gradle.
• Knowledge of SQL databases and API testing tools such as Postman.

Preferred Skills

• Experience with Docker and Kubernetes.
• Familiarity with CI/CD pipelines.
• Experience working with cloud platforms such as AWS, Azure, or GCP.
• Knowledge of monitoring and logging tools.
• Exposure to Agile/Scrum development methodologies.

Mandatory Technical Expertise

• Java 8/10
• Spring Boot
• REST APIs
• Microservices
• Apache Kafka
• Multithreading
• Collections Framework
• Strong Coding & Problem-Solving Skill

Urgent Requirement 🔥

👉 Java Backend with AWS

👉 Java Backend with React, Spring Boot, Microservices

Exp: 3+ Yrs

Loc: Chennai, Bangalore, Hyderabad

Immediate Joiners Preferred!

Key Responsibilities:

• Around 4+ years of experience in Java backend development. Candidates with 3+ years of relevant experience may also be considered.
• Strong problem-solving and coding skills in Java are mandatory.
• Strong knowledge of the Spring Framework, including Spring Boot, RS services, and Spring Batch.
• Experience with microservices architecture is preferred. Candidates with basic microservices exposure may also be considered.
• Good understanding of SQL and NoSQL databases. Strong knowledge of at least one database system, such as BigQuery or Oracle, is mandatory.
• Exposure to Kafka, Docker and Kubernetes will be an added advantage.
• Familiarity with AI coding tools such as Claude Code or Cursor will be an added advantage.
• Candidates should have strong programming fundamentals to validate and review AI-generated outputs.

Job Summary

We are looking for an experienced Java Spring Boot Developer with strong expertise in Java, Spring Boot, and Microservices. The ideal candidate should have basic or junior-level experience with React.js and be comfortable working on backend development with some frontend integration.

Key Responsibilities

• Design, develop, and maintain scalable applications using Java and Spring Boot.
• Develop and maintain RESTful APIs and microservices-based applications.
• Build and enhance backend services based on business requirements.
• Work with databases, write optimized SQL queries, and manage data efficiently.
• Collaborate with frontend developers to integrate backend services with React.js applications.
• Participate in code reviews, debugging, troubleshooting, and performance optimization.
• Follow coding standards and contribute to application design and technical documentation.
• Work closely with cross-functional teams to deliver high-quality software solutions.

Mandatory Skills

• Java: Strong hands-on experience in Java development.
• Spring Boot: Experience developing applications using Spring Boot.
• Microservices: Hands-on experience designing and developing microservices.
• React.js: Basic or junior-level experience with React.js.
• REST APIs: Experience developing and integrating RESTful web services.
• SQL/Database: Working knowledge of SQL and relational databases.

Required Experience

• 5–7 years of overall software development experience.
• Strong backend development expertise in Java, Spring Boot, and Microservices.
• Basic working knowledge of React.js is sufficient.
• Good problem-solving, communication, and teamwork skills.

**Please apply directly through our careers page**

Who We're Looking For

We are looking for engineers who share our passion for technology and rise to meet hard technical challenges. Individual contributors who thrive in a collaborative culture and a strong technical environment — self-starting, dynamic, and quick to pick up new technologies in order to deliver working solutions with minimal direction.

This is a backend-heavy full-stack role: you should be an engineer who is at home in distributed, server-side systems first, with the range to also work competently across the stack when a feature calls for it.

What You'll Do

We are seeking a Full-Stack Software Engineer to work closely with the architecture team on enhancements to Provenir's cloud-native, microservices-based decisioning engine (rules/graph-based execution).

This role requires deep, hands-on backend expertise and extends into full ownership of features end to end — from service design through UI integration and deployment.

• Design, build, and evolve microservices for Provenir's decisioning engine using Core Java and Spring Boot.

• Design and implement synchronous and asynchronous REST APIs that power decisioning workflows across the platform.

• Apply multi-threading and performance-tuning techniques to keep high-throughput decisioning services fast and reliable at scale.

• Build and maintain event-driven integrations using Kafka and ActiveMQ (or equivalent message queuing technologies) to support distributed, asynchronous processing.

• Model and manage data across relational and NoSQL stores (MySQL, MongoDB) using ORM tools such as Hibernate, Ebeans, or OpenJPA.

• Practice test-driven development, writing and maintaining unit tests as a core part of the delivery process.

• Containerize and deploy services with Docker and Kubernetes, working within a single-region, multi-AZ

AWS deployment architecture, and contribute to CI/CD pipelines (Git, GitHub Actions, Jenkins, Terraform, Datadog).

• Own features across the full SDLC — design, testing, implementation, deployment, and maintenance — in partnership with the architecture team.

• Build and maintain Angular or React or any frontend framework components and modules that surface decisioning workflows and configuration screens, integrating cleanly with backend REST APIs.

• Contribute to responsive UI work using TypeScript, HTML5/CSS3, and frameworks such as Material-UI, Bootstrap, or Tailwind.

What's Required

Experience & Education

• Minimum of 5 years of professional software development experience — this is a firm minimum for the role.

• Bachelor's or Master's degree in Computer Science, Computer Engineering, or a related field.

• Minimum 5+ years of hands-on experience with Core Java, Spring Boot, Angular or React or any frontend framework, AWS, multi-threading, and performance tuning.

• Proven experience designing, building, and deploying microservices architectures in cloud environments.

• 4+ years designing and developing synchronous and asynchronous REST web services.

• Experience with message queuing technologies such as Kafka, ActiveMQ, or equivalent.

• 4+ years working with ORM tools (Hibernate, Ebeans, or OpenJPA) across relational and NoSQL databases (MySQL, MongoDB).

• 4+ years of test-driven development and unit testing practice.

• Solid grounding in OOA/OOD and design patterns — knowing where, why, and how to apply them.

• Hands-on experience with AWS, containerization and orchestration (Docker, Kubernetes), and CI/CD tooling (Git, GitHub Actions, Jenkins, Terraform, Datadog).

Full-Stack / Frontend Exposure

• Working knowledge of Angular or React or any frontend framework, with hands-on experience integrating front-end applications with backend REST services.

• Practical, hands-on experience with HTML5, CSS3, and responsive UI frameworks such as Material-UI, Bootstrap, or Tailwind.

Nice to Have

• Experience with Scrum/Agile development methodologies.

• Unix/Linux operating system knowledge.

• Broader exposure to event-driven and distributed system design beyond core messaging integration.

• Exposure to systems supporting ML/DL/AI model training, testing, or execution within a production product stack.

Why You Should Join Us

Our employees are empowered to be curious, forward-thinking engineers. We ask them to explore the uncharted and build the unimagined — that's what makes Provenir unique.

We offer comprehensive health and wellness plans. You'll enjoy paid time off and company holidays, flexible and remote-friendly options, along with benefits to plan for your future.

At Provenir, you'll be part of a dynamic, growing team that prides itself on building highly innovative, adaptable, and configurable software solutions, in a collaborative culture and strong technical environment.

To learn more,

visit www.provenir.com.

Equal Opportunity

Provenir is an Equal Opportunity Employer. We recognize that diversity and inclusion make our teams stronger,

and we are committed to equal employment opportunity regardless of race, color, ancestry, religion, national

origin, age, sex, gender identity, sexual orientation, disability, marital status, domestic partner status,

citizenship, or veteran status or medical condition. We encourage people from all backgrounds to apply

Java + Angular

Java, spring boot, microservice, angular

5-10yrs

Hyderabad, bangalore

immediate 15days

Call or WhatsApp: 6 3 8 5 0 7 6 1 4 2

JOB DESCRIPTION:

Location: mumbai, bangalore, pune

Mode of Work : 3 days from Office

DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API

• Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
• Implement and integrate APIs using Spring Framework and Apache CXF.
• Build microservices-based architecture for scalable and distributed systems.
• Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
• Optimize performance through efficient multithreading, memory management, and algorithm design.
• Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
• Work with RDBMS (preferably Sybase) for backend data integration.
• Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
• Work in Unix/Linux environments for deployment and troubleshooting.

Required Skills & Experience:

• 3– 8 years of strong hands-on experience in Core Java, Spring boot, microservices, data structures.
• Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
• Proven experience with Spring, CXF, and REST/SOAP web services.
• Solid understanding of microservices architecture and distributed systems.
• Experience working with Sybase or other relational databases.
• Expertise in multithreading, concurrency, and high-throughput server-side development.
• Exposure to capital markets, sales & trading platforms, or similar financial services applications.
• Good working knowledge of Unix/Linux environments.
• Experience in solution architecture and design documentation is a strong plus.
• Strong problem-solving skills, analytical thinking, and a proactive attitude.
• Excellent communication and interpersonal skills to work effectively with global teams.

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Previous experience in investment banking, capital markets, or financial technology domains.

For more details:

Website: www.wissen.com

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

LinkedIn: Wissen Technology

Required Skills

• 5+ years of experience in Backend Java Development.
• Strong proficiency in Core Java.
• Hands-on experience with Spring Boot.
• Experience with Spring Framework, Spring Data JPA, and Hibernate.
• Experience with Spring Batch.
• Strong understanding of RESTful APIs.
• Good knowledge of Microservices architecture.
• Strong experience with SQL databases.
• Exposure to NoSQL databases.
• Experience with Git and CI/CD.
• Experience with JUnit, Mockito, or similar testing frameworks.
• Strong debugging and troubleshooting skills.
• Good understanding of software development best practices.

Good-to-Have Skills

• Docker / Kubernetes
• AWS / Azure / GCP
• Kafka / RabbitMQ
• Redis
• Swagger / OpenAPI
• Monitoring and logging tools

Build Products. Solve Real Problems. Grow with Us.

Are you passionate about building scalable applications, solving complex engineering challenges, and working with modern technologies?

At NonStop io Technologies, we're looking for a talented Java Developer who enjoys creating high-quality software, collaborating with smart teams, and continuously learning new technologies.

This isn't just another development role. You'll work on real-world products, modern architectures, cloud technologies, AI-powered development tools, and systems that impact businesses and users every day.

If you're someone who loves writing clean code, takes ownership of your work, and wants to grow into a strong technical contributor or future tech lead, we'd love to connect with you.

About NonStop io Technologies

NonStop io Technologies is a product engineering company with 10+ years of experience building web and mobile applications for startups and enterprises.

We're a team of passionate engineers who believe in:

• Building products, not just projects
• Continuous learning and innovation
• Engineering excellence and quality delivery
• Long-term ownership and customer success
• Collaboration, transparency, and growth

Our engineers don't just execute tasks, contribute ideas, influence architecture decisions, and help shape products from concept to scale.

What You'll Be Working On

• Designing and developing scalable backend applications using Java and Spring Boot
• Building REST APIs and Microservices
• Working on cloud-ready applications and distributed systems
• Collaborating with product managers, designers, and engineers
• Improving application performance, scalability, and reliability
• Contributing to architecture and technical design discussions
• Leveraging AI-powered development tools to enhance productivity
• Working with CI/CD pipelines and modern software engineering practices.

Skills We're Looking For

Must Have

• 3–6 years of experience in Java development(Min 3 Years)
• Strong expertise in Java, Spring Boot, Spring MVC, and Hibernate/JPA
• Experience building Microservices and REST APIs
• Strong understanding of OOP, Design Patterns, and Clean Coding Practices
• Experience with MySQL or PostgreSQL
• Working knowledge of Git
• Hands-on experience with Frontend Technologies (HTML, CSS, JavaScript, React/Angular)
• Experience with Maven or Gradle

Good to Have

• Experience with AWS or cloud environments
• Exposure to CI/CD pipelines and DevOps practices
• Experience with distributed systems and scalable architectures
• Knowledge of automated testing frameworks
• Familiarity with AI-assisted development tools such as GitHub Copilot

Why Developers Love Working With Us

• Work on real products with real impact
• Opportunity to work on modern architectures and cloud technologies
• Exposure to AI-powered software development practices
• Learn directly from experienced engineers and architects
• Friendly, collaborative, and growth-oriented culture
• Freedom to experiment, innovate, and share ideas
• Continuous learning and career growth opportunities
• Work with a team that values ownership, trust, and engineering excellence

Interested in Joining Our Team?

We're always excited to connect with developers who are curious, driven, and passionate about technology.

If you enjoy building quality software, learning new technologies, and taking ownership of your work, this could be the right opportunity for you.

We look forward to connecting with you!