Java Microservices

JOB DESCRIPTION

Experience: 5-8 years

Location: Mumbai

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. - 5-8 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.

About Us:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.

Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. 

We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. 

Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results. 

Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Website : www.wissen.com 

Job Description: Node.js Developer (3+ Years Experience)

Division/Department: Engineering

Industry: Insurance / Fintech

Employment Type: Full-Time, Permanent

Job Summary

We are looking for a skilled Node.js Developer who is experienced with JavaScript/TypeScript, databases, and modern AI development tools. You will build and maintain backend applications, design scalable systems, and use AI tools to enhance development productivity. The role involves backend development, database management, API development, and cloud deployment.

What You’ll Be Doing

Backend Development

• Build and maintain Node.js applications, services, and APIs.
• Write clean, readable JavaScript/TypeScript code.
• Create and manage REST APIs; work with GraphQL when required.
• Develop microservices and containerized applications (Docker).
• Participate in code reviews and help maintain coding standards.

Database Work

• Design database schemas for PostgreSQL, MongoDB, and Redis.
• Write optimized SQL and NoSQL queries.
• Implement indexing and manage database performance tuning.
• Handle database scaling and caching strategies.

AI Tools & Productivity

• Use AI coding assistants (GitHub Copilot, Cursor AI, Tabnine).
• Integrate AI APIs (OpenAI, Claude) into backend applications.
• Build features powered by AI/ML capabilities.
• Use AI tools to debug and enhance code quality.

Deployment & Operations

• Deploy applications on AWS, Azure, or GCP.
• Set up CI/CD pipelines (GitHub Actions, Jenkins).
• Work with Docker and Kubernetes.
• Monitor backend services and perform troubleshooting.

Job Requirements

Must-Have (2–7 Years Experience)

• Strong hands-on experience with Node.js and Express.js.
• Excellent understanding of JavaScript/TypeScript, ES6+, async/await.
• Experience with at least one major database: PostgreSQL, MongoDB, Redis.
• Knowledge of API development (REST, GraphQL).
• Hands-on experience with Git and version control.
• Experience with testing tools like Jest, Mocha, or similar.

AI Tools Experience

• Familiarity with AI coding assistants.
• Working with AI APIs (OpenAI, Claude, etc.).
• Experience using AI tools for debugging and code optimization.
• Basic understanding of prompt engineering.

Bonus Skills (Good to Have)

• Cloud platforms: AWS, Azure, Google Cloud.
• Docker, Kubernetes.
• CI/CD pipelines.
• Frontend exposure (React/Vue/Angular).
• Message queues: RabbitMQ, Kafka.
• Caching: Redis, Memcached.
• API security: JWT, OAuth2.

Mandatory Skills

Technical

• Experience building and deploying Node.js applications.
• Strong command over databases and efficient query writing.
• Comfort with AI-based coding tools.
• Ability to debug and solve backend issues independently.

Soft Skills

• Strong communication and teamwork skills.
• Self-driven and eager to learn new technologies.
• Ability to mentor junior developers (for senior positions).

JOB PROFILE: - SOFTWARE ENGINEER TRAINEE

• Experience with Web fundamentals like HTML5, JavaScript, CSS3, and JSP, etc.
• Good understanding of Object-Oriented JavaScript (OOJS), ES6,
• Hands-on exp in Web app development using modern client-side MVC frameworks using ReactJS
• Thorough understanding of ReactJs and its core principles
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Experience developing custom reusable components in ReactJS
• Proficient understanding of unit testing using JavaScript test frameworks like JEST
• Experience integrating REST APIs
• Ability to understand business requirements and translate them into technical requirements

Backend Developer/FullStack Developer - ANGULAR,JAVA

We are looking for a Software Development Engineer (Java Backend) to join our team! As a key member of our engineering team, you will be responsible for the end-to-end development and delivery of our products.

Diverse Hiring: SDE 3 (Java Backend) | 5-8 Y | Bangalore WFO | Females Only |

Prefer qualified candidates from Premium Institutes - NIT / IIT / IIIT / REC / BITS / REC with relevant working from Products / Unicorns alike Flipkart, Amazon, CRED, Swiggy, Zomato, Jupiter, Blinkit, OYO, Ola, Uber, Pine Labs, PayTM,

Scope Of Work:

Design, develop, deliver & maintain highly-scalable, cloud-native products, working with product and design teams.

Ability to ship to production in small testable pieces of code, in quick iterations

A good grasp of scalable software development, with a DevOps mindset

Providing people and technical leadership to your engineering teams

Support in developing and managing companies IT infrastructure

Participate in the hiring of world-class engineers and grow the engineering team

Required Skills & Qualifications:

Must have a deep understanding of both development and operations processes, as well as a strong technical background.

5+ years of experience developing software products - Java.

Demonstrable experience in leading software teams by example.

• Developing front end website architecture.
• Designing user interactions on web pages.
• Developing back-end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.

• Degree in computer science.
• Strong organizational and project management skills.
• Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
• Familiarity with JavaScript frameworks such as Angular JS, React, and Amber.
• Proficiency with server-side languages such as Python, Ruby, Java, PHP, and .Net.
• Familiarity with database technology such as MySQL, Oracle, and MongoDB.
• Excellent verbal communication skills.
• Good problem-solving skills.
• Attention to detail.

The ideal candidate should be a self-motivated, multi-tasker, and demonstrated team player. You will be responsible for the production support of software products and coordinating with various teams for support. You should have outstanding communication and Team-Player skills.

Educational Qualification: BCA, MCA or BE/B.Tech (CS)

Must-know technologies: Java,
Good to know technologies: DMN tools
Experience: 02 Years - 05 Years
Skill Level: Good

Responsibilities:

• Contribute to Java development work as well as the latest Decision model and notation tools

   

• Comply with coding standards and directions given by his direct manager Collaborate with an international and diverse team of Data Architects, Business Analysts, and Project Managers

• Tasks will be assigned and after completion, code need to be committed and task assigned for review by Senior Java developer

• Work with technology stakeholders to devise solutions that will fulfill business requirements and meet organizational strategic goals

• Develop application functionality which meets business requirements with high quality within given deadlines - develop maintainable, well-documented application functionality with an eye toward standardization, common components, simplicity, performance, robustness and other attributes of enterprise-strength solutions

• Thoroughly test all functionality - utilize detailed and thorough practices including negative testing, testing of boundary conditions, , and work collaboratively with business areas.

• Support interfaces between the deployment of developed applications and the decommissioning of legacy applications

• Support with the Development and Infrastructure Teams

• Design, and develop scalable, high-performance, highly reliable and secure applications using waterfall and agile methodologies

• Create reusable code

Your Qualifications:

 7 to 12 years of experience with majority as Java engineer

 Strong hands on experience on building application using technologies Java, Spring, Hibernate, Maven/Gradle.

 Experience in building Micro Services using Spring Boot / Go.

 Strong knowledge and experience with SQL queries and databases like Postgre SQL/Oracle.

 Strong knowledge and experience on Platform components such as Docker, Kubernetes and Service Mesh (Istio).

 Good knowledge of scripting languages (preferably Python and Bash)

 Familiarity with CI/CD environment (Jenkins).

 Experience on Observability stack such as ELK Stack, Prometheus & Grafana would be added advantage.

 Should have experience on Active MQ based async queuing system design and deployment.

 Strong experience of system design and implementation of end-to-end integrated systems.

 Familiarity with Hazelcast and Zk Solution would be a plus.

 Strong skills to write technical design documentation.

 Experience of leading a team as tech lead.

 Ability to work effectively in a team environment as well as independently.

 Good communication skills with tech/non-tech people.

What You'll Do:

 Assigned to software development projects and/or system enhancements as tech lead.

 Be engaged in a whole process of development project (requirements analysis, design, implementation, testing/verification, deployment, operation/maintenance).

 Work closely with project manager and other engineers. Some of them are in different locations such as Japan and Singapore.

 Always improve the design quality, code quality, testing quality and system quality spontaneously. In addition, create such a culture in our team.

 Understand business needs and user behavior and develop solutions to those needs.

 Develop and maintain a deep understanding of our systems and propose system improvements.

 Guide and support less-experienced members as mentor and role model to improve the team productivity and achieve team’s goals together.

Better to Have:

 Familiarity with Telecom Service Provider’s Billing Ecosystem/BSS Systems.

 Familiarity with and experience on Cloud Native Technologies.

 Familiarity with Agile Software development process.

 Familiarity with and experience on Linux/Unix environment

 Work experience with a remote team

 Familiarity with Atlassian tools (JIRA, Confluence, HipChat)

 Familiarity with source control system (Gitlab, SVN, etc.)

OUR COMMITMENT TO YOU:

You'll benefit from our network of global communities and collaborative culture that will help you build technical and functional skills and capabilities. And because we serve more than 28 countries industries globally, you'll have the opportunity to develop valuable industry-specific expertise.

The scale of our capabilities and client engagements and the unique way we innovate, operate and deliver value will give you the opportunity to deepen your existing skills even as you help create the latest technology trends. You'll have access to leading-edge technology.

Your role in helping us shape the future:

Gogo Commercial Aviation, An Intelsat Company has an exciting opportunity for a Software Engineer. You will help us design and develop solutions aimed at providing a means to manage and deploy the configuration specifics of aircraft, based on airlines, aircraft deployed technology, fleet and installation requirements. This solution uses a combination of configuration management and cloud-based deployment using AWS which also requires an understanding of network / telecom protocols.

Are you up to the challenge?

The ideal candidate for this role will be a working member of an engineering team delivering quality technical solutions carrying through from design to deployment. This role requires solid understanding of the design and development process, using CI / CD technologies. Your role will be crucial in designing and delivering complex products and solutions across technologies products and tools, improving quality of the code by following coding standards/guidelines, using static code analysers, maximum unit test coverage and automating the test cases.

Can you drive these processes?

• Develop groundbreaking and distributed solutions with high availability and impact.
• Work with the Architects/ Technical lead / Product Owner to understand user requirements, convert BDD scenarios or user stories into product functionality.
• Work with the team members collectively to own and deliver features and flexible to take up any type of tasks like develop, automate and test to complete feature.
• Perform code reviews and associated engineering quality checks clearly and consistently.

You should definitely have:

• Bachelor's degree in Computer Science, Engineering, or related discipline
• 2 - 5 Years of experience in systems implementations with a focus on both custom application development & commercial systems software implementations
• Knowledge and experience in multiple technical disciplines required (development, QA, devops, etc)
• 2+ years of in-depth development experience with Java / C++ / C / Go.
• Experience in CI/CD and AWS deployments (EC2, SQS, SNS, Lambda, S3, Aurora, DynamoDB)
• Advanced knowledge of software development lifecycles; expert knowledge in Agile and Lean methods.
• Proponent of DevOps, TDD, Agile/XP practices, and CI/CD pipelines
• Ability to work under pressure, prioritize work, coordinate with onsite stakeholders and well organized.
• Flexibility in working with technologies and platforms.
• A commitment to excellence, best practices, and the continuous improvement of our products, code base, processes, and tools.

It would be nice if you had:

• Experience with Scaled Agile Framework (SAFe) work environments

What it’s like to work with us:

Intelsat is connecting the world and transforming the satellite landscape by reaching beyond the traditional satellite industry. We are defining new products that will open new, profitable markets. To help us reach this goal, you should be a bold thinker who will perform a key role in shaping Intelsat innovation for years to come.

• We emphasize personal and professional growth
• Awesome benefits including Leave Benefits, medical and training
• Fun, diverse, and inclusive culture