Java back end developer

JOB DESCRIPTION

Experience: 3-8 years

Wissen Technology is now hiring for a Java Developer - Mumbai 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.

Job Title : Senior Software Engineer

Experience : 5+ Years

Location : Mumbai (Work from Office)

Notice Period : Immediate to 15 Days

Mandatory Skills :

Platform Engineering, Backend Development, Python/Golang/Node.js/Elixir, Microservices, REST APIs, Cloud-Native Architecture, Distributed Systems, SQL, Cloud Platforms (AWS/Azure/GCP), Product-Based Experience

Role Overview :

We are looking for a Senior Software Engineer with strong backend engineering expertise to design, build, and scale cloud-native platform services. The ideal candidate should have experience working in product-based organizations, building highly scalable distributed systems, and contributing to platform engineering initiatives.

You will work closely with Product, DevOps, Security, and Engineering teams to build reliable, secure, and high-performance backend systems while driving technical excellence across the organization.

Key Responsibilities :

• Design, develop, and enhance core platform modules and shared backend services.
• Build scalable REST APIs, backend services, and data pipelines for high-volume production environments.
• Participate in architecture discussions and contribute to technical design decisions.
• Collaborate with Product, DevOps, Security, and Data Engineering teams to deliver scalable solutions.
• Design systems with a focus on scalability, performance, security, maintainability, and reliability.
• Troubleshoot complex production issues and implement permanent solutions.
• Review code, mentor engineers, and promote engineering best practices.
• Improve platform reliability, observability, and developer productivity.
• Drive continuous improvements in coding standards, architecture, and development processes.

Required Skills & Qualifications :

• 5+ years of software development experience in product-based companies (B2B experience preferred).
• Strong backend development experience using one or more of :
• Python
• Golang
• Node.js
• Elixir
• Hands-on experience with Microservices Architecture.
• Strong understanding of Cloud-Native Application Development.
• Experience designing and developing RESTful APIs and backend services.
• Minimum 3 years of experience working on cloud-based, customer-facing production applications.
• Strong knowledge of Distributed Systems Design.
• Experience with relational and NoSQL databases.
• Good understanding of SQL and data modeling.
• Experience designing reusable platform services consumed by multiple engineering teams.
• Strong product mindset with the ability to balance business requirements and technical excellence.
• Backend-focused engineer with exposure to frontend technologies.

Preferred Skills :

• Experience building highly scalable distributed platforms.
• Strong debugging and performance optimization skills.
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Familiarity with DevOps practices, CI/CD pipelines, monitoring, logging, and observability tools.
• Excellent analytical, communication, and problem-solving skills.
• Experience mentoring engineers and driving technical initiatives.

Preferred Background :

• Product-Based Organization
• Platform Engineering Team
• FinTech or B2B SaaS products (preferred)

Position Overview

We are seeking a skilled Developer to join our engineering team. The ideal candidate will have strong expertise in Java and Python ecosystems, with hands-on experience in modern web technologies, messaging systems, and cloud-native development using Kubernetes.

Key Responsibilities

• Design, develop, and maintain scalable applications using Java and Spring Boot framework
• Build robust web services and APIs using Python and Flask framework
• Implement event-driven architectures using NATS messaging server
• Deploy, manage, and optimize applications in Kubernetes environments
• Develop microservices following best practices and design patterns
• Collaborate with cross-functional teams to deliver high-quality software solutions
• Write clean, maintainable code with comprehensive documentation
• Participate in code reviews and contribute to technical architecture decisions
• Troubleshoot and optimize application performance in containerized environments
• Implement CI/CD pipelines and follow DevOps best practices
•  
• Required Qualifications
• Bachelor's degree in Computer Science, Information Technology, or related field
• 4+ years of experience in software development
• Strong proficiency in Java with deep understanding of web technology stack
• Hands-on experience developing applications with Spring Boot framework
• Solid understanding of Python programming language with practical Flask framework experience
• Working knowledge of NATS server for messaging and streaming data
• Experience deploying and managing applications in Kubernetes
• Understanding of microservices architecture and RESTful API design
• Familiarity with containerization technologies (Docker)
• Experience with version control systems (Git)
•  
• Skills & Competencies
• Skills Java (Spring Boot, Spring Cloud, Spring Security)
•  
• Python (Flask, SQL Alchemy, REST APIs)
• NATS messaging patterns (pub/sub, request/reply, queue groups)
• Kubernetes (deployments, services, ingress, ConfigMaps, Secrets)
• Web technologies (HTTP, REST, WebSocket, gRPC)
• Container orchestration and management
• Soft Skills Problem-solving and analytical thinking
• Strong communication and collaboration
• Self-motivated with ability to work independently
• Attention to detail and code quality
• Continuous learning mindset
• Team player with mentoring capabilities

*forward your resume to (ambikadotj@semperfidotcodotin)(dot - .)

) 2+yrs of strong experience in Java/J2EE technologies (Core Java, Spring, Springboot, Hibernate, 

JPA, Microservices)  

*) Experience with working on Java 8.0 and its emerging road map for 11  

*) Hands on experience in Springboot and good knowledge of MySQL, MongoDB  

*) Hands on experience in working with Angular 6 and above. Experience working with product 

management and UI/UX designers having knowledge of advanced Javascript, JQuery  

*) Working knowledge on components, modules, data/event bindings, templates, using and creating 

directives, writing routes, services, forms and models  

*) Solid understanding of the full frontend and backend development life cycle  

*) Strong experience in Spring Framework (Spring MVC, Spring security, Spring data, OAuth)  

*) Experience with Webservices (SOAP and REST) and API integration. Good knowledge of JSON and 

Swagger and Postman is required  

*) Experience with web application servers like Tomcat, Jetty, JBoss. Knowledge of Kafka with MQTT 

would be an added advantage  

*) Experience with TDD, code testability standards, JUnit  

*) Experience in managing configurations and deploying and hosting applications in AWS  

*) Experience with DevOps tools like Git, Maven, SourceTree, Jenkins, Docker and CICD model of 

development   

• l IT experience delivering enterprise-scale applications or product implementations
•  experience working as a technical lead.

• Working Experience in ISO20022, SWIFT, Remittance
• Language & Frameworks: Java, Spring Boot, Spring, Any ORM

Overview

At Netradyne, we are revolutionizing the conventional mapping paradigm with our Dynamic mapping technology. Our unique approach leverages computer vision, Edge Computing, and crowd sourcing to deliver rich, highly accurate content in real-time, critical to the successful development of maps

What you will be doing ?

You will work in a fast-paced environment including multiple platforms, architectures, and technologies. You will be responsible for

• Development of various cloud/web components to ingest, process, transform and visualize data at scale.
• Contribute to algorithm development and automated evaluation for measuring quality.
• Follow engineering best practices (unit testing, continuous delivery etc.)
• Deployment and monitoring of production ready infrastructure

Skills

• Strong analytical and problem-solving skills.
• 3-7 years strong programming experience in Python/Java .
• Hands on knowledge in at least one MVC and ORM frameworks.
• Familiar with at least one frontend framework i.e. React/ Angular
• Working knowledge of at least one RDBMS or NoSQL database.
• Exposure to Geospatial databases and tools like Qgis,OSM will be a plus

Icicle is looking for an experienced RoR developer who can effortlessly build with us the cleanest of all designs. We're looking for passionate Ruby on Rails developers to join our IT team in Mumbai.

Icicle builds Web & Mobile products for Startups, Brands, Digital Agencies and Enterprises, helping in bringing their ideas to life. More - www.icicletech.com

The team consists of bright young designers, hackers, senior developers, startup specialists. We are distributed with offices in Mumbai, Bangalore and New York. More - www.icicletech.com

What will you do?

As a Ruby on Rails developer, you will get to:

• Participates as an independent contributor on an agile development team working closely with team members to effectively deliver high quality code.
• Complete ownership of a product or feature from development to launch.
• Coordinate and participate in the code review process to ensure delivery of high-quality, testable code using best practices and current software patterns.
• Review and mentor other team members. Be a team player!
• Get complete control of the product with active involvement in deciding stack and architecture.

What we are looking for

• Minimum 3+ years in depth hard core experience in Ruby on Rails
• Deep understanding of object-orientated programming
• A knack for writing clean, readable maintainable Ruby code.
• Identify bottlenecks and bugs, and devise solutions to these problems.
• Skillset in Testing using Rspec
• Demonstrated skills and experience with writing testable code and using related best practices.
• Understanding of web services technologies such as REST is required.
• Good experience and understanding of continuous integration and deployment process.
• Knowledge in working with AWS or other cloud platform
• Experience in working with limited direction while exceeding delivery expectations.
• Great communication, particularly in explaining your coding processes, suggestions for best practices, and identifying ways to improve the teams coding quality.

Technical Expertise
Core

Ruby, Ruby on Rails, HTML, CSS3, JavaScript, Rest API
Databases

PostgreSQL, MongoDB, Redis, Memcached
Testing

Rspec (or any other Unit testing framework)
Cloud/Deployments

Capistrano, Docker, Heroku, AWS, Kubernetes

Desirable Skills

• Participation in open-source projects.
• Actively involved in solving problems on Github, Stackoverflow.com and groups.
• Experience working in JS and front end frameworks (React)
• Interest in learning new technologies.

Why Icicle

• 100% work-life balance
• Competitive salary
• Perks of getting free Gym Membership vouchers.
• Medical checkup Vouchers with topnotch hospitals and coupons for medical bills.
• Exposure to futuristic technology, mentally stimulating work environment.
• Opportunity to work with a big team of experienced, committed, talented people with a great sense of humour.
• Stability of a legacy company and agility of a startup - best of both the world.
• A healthy work environment with no politics, no bureaucracy.
• Encouraged to learn new skills, grow together, not just maintain the status quo

So, if you have 3+ years of experience developing applications with Ruby on Rails, apply today!