Senior Software Engineer ( Java / J2EE )

JOB DESCRIPTION:

Location: mumbai

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– 7 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

Job Description/Preferred Qualifications

Qualifications

•            Bachelor's degree in computer science, Software Engineering, or a related field.

•            Proven experience as a VC++ Developer.

•            Knowledge of Win32 API, MFC, STL, SQL, XML and TCP/IP Sockets is required.

•            Interface with COM ports, USB devices, PCI cards, and Ethernet networks.

•            Familiarity with data structures, algorithms, and design patterns.

•            Ability to debug and optimize multithreaded applications.

•            Strong understanding of Visual C++ and object-oriented programming principles.

•            Experience with software development methodologies.

•            Excellent problem-solving skills and attention to detail.

•            Good communication and teamwork skills.

•            Ability to work independently and as part of a team.

Desired Qualifications

•            Knowledge of Modbus and SECS/GEM protocols.

•            Knowledge of Windows Kernel-Mode Drivers.

•            Experience in coding for industrial automation.

•            Familiarity with liquid chemical analytical hardware.

•            Experience in Semiconductor Manufacturing Equipment.

Responsibilities

* Develop and maintain software applications using Microsoft Visual C++.

* Develop new features to control KLA Analyzer and Doser hardware in established code base.

* Collaborate with cross-functional teams to define software requirements.

* Write clean, efficient, and maintainable code.

* Debug, troubleshoot, and fix software issues.

* Conduct code reviews to ensure adherence to best practices.

* Optimize application performance for speed and scalability.

* Participate in the full software development lifecycle, from requirement gathering to deployment.

Must-Haves (If you have, please mention in your resume)

B.Tech/MSC/M.Tech/MS Mandatory

Years of experience in C++: Min 3 Years

Years of experience in MFC: Min 3 Years

Experience in Data structure and algorithm

Experience in Windows Environment (Win 32)

Experience from Product company a MUST

Relocation to Chennai is mandatory

Job Title: Senior Technical Consultant

Employment Type: Full-Time

Location: Remote

Experience: 5+ Years

Key Responsibilities

Backend Engineering (Primary Focus – ~80–90%)

• Design and build scalable, secure, high-performance backend systems.
• Work with one or more modern programming languages:
• Java, Python, Go, Ruby on Rails, Rust, or Node.js
• Write clean, reusable, testable code and maintain strong unit test coverage.
• Engage in architecture discussions, code reviews, and code pairing.
• Implement and maintain CI/CD pipelines and follow DevOps best practices.

Frontend Contribution (Optional – ~10–20% if willing)

• Not mandatory, but you may occasionally take small frontend tasks.
• Ability to discuss frontend fundamentals (React/Angular basics) is preferred.
• Exposure to HTML/CSS/JS is a plus but not required.
• Willingness to learn or contribute to UI tasks when needed is appreciated.

Client Collaboration

• Work directly with clients to understand business and technical requirements.
• Explain decisions, trade-offs, and architecture clearly and confidently.

Team Collaboration

• Work independently within a distributed global team environment.
• Contribute across the complete product lifecycle and engineering decisions.

Tech Stack for the Role

Backend (Primary)

Must have experience in at least one:

• Java
• Python
• Go
• Ruby on Rails
• Rust
• Or:
• Node.js

Frontend (Optional)

• React or Angular (only if willing)
• HTML & CSS (optional)

Required Skills & Experience

• 5+ years of hands-on backend development experience.
• Strong polyglot programming capability across at least 2 backend stacks.
• Solid understanding of:
• System Design & Architecture
• Design Patterns
• Object-Oriented & Functional Programming Concepts
• Experience with CI/CD pipelines, testing frameworks, and DevOps workflows.
• Ability to work independently with minimal supervision.
• Excellent communication, analytical thinking, and client-facing skills.

Nice to Have

• Experience with Microservices, Docker, Kubernetes.
• Prior consulting, client-facing, or solution-engineering experience.
• Exposure to AWS / GCP / Azure cloud environments.

Lead Developer (Kochin)

Opportunity in this role / Why should you work with us?

- You are your own master. We don't preach you, we just allow you to Innovate, Iterate, Learn and Adapt

- Work with one of India's leading foodtech unicorn company

- ESOPs in the company

Requirements

- Strong coding and problem-solving skills

- 6-10years of industry experience

- Bachelors and/or master’s degree, preferably in CS, or equivalent experience

- A full-stack generalist with experience in both front-end and back-end technologies

- Experience in Java.

- Experience in JavaScript frameworks like Angular, React, NodeJS or Kotlin

- Ability to write MySQL queries across tables

- Good architecture and system design skills

Roles and Responsibilities

Passion for delivering products end-to-end, from ideation to implementation

Good knowledge of data structures and their use cases (Map, List, Tuple, Object, Interface)

Ability to write using python, perl, bash or node.js to quickly do a PoC

Knowledge of encapsulation/inheritance

Basic knowledge of CSS and principle behind it and its use in javascript or jquery

Candidates willing to relocate to Middle East would be preferred

Interested in a full cycle development role working collaboratively with a diverse suite of clients and a team that cares about your growth? Join Virtusa!

As a Java Developer, you will have the opportunity to tap into your knowledge to develop, design and manage a wide range of innovative projects.  Sound like fun? Read on.

Day-to-day responsibilities will include:

• Utilizing your deep technical knowledge to design, develop and optimize business processes across multiple systems.Developing detailed technical analysis and design specifications based on functional requirements.
• Collaborating with fellow developers and clients to solve problems.
• Creating user acceptance testing and performance testing plans to validate and support the customizations, features and functionalities.
• Migrating to internal and external clouds, as well as to Microservices architecture.
• Evaluating open source and vendor products.

Key responsibility:

• Designing and developing for performance and scalability, and to meet the overall detailed requirements of the system.
• Collaborating with fellow developer, testing, operations and architecture teams when projects and changes in technology have impact across the enterprise
• Creating user acceptance testing and performance testing plans to validate and support the customizations and integrations.

Qualifications:

• Minimum 3  years of software development using Java, J2EE, , XML, Web Services/SOA and used Java frameworks - Spring, Spring-boot, Hibernate, REST.
• Working with GIT/Bitbucket, Maven, Gradle, Jenkins tools to build and deploy code deployment to production

           environments

• Experience with Application Development using object oriented Lifecycle and Application Frameworks
• Strong technical, analytical, problem solving, and communication skills
• Experience with system, application, and process documentation including tools such as MS-Visio, Office.
• Experience with quality control and root-cause analysis.
• Excellent verbal, written, interpersonal, organizational and time management skills
• Solid experience in design, coding, testing and debugging skills
• Solid experience in design, coding, testing and debugging skills
• Familiar with automation tools Autosys/ Control-M
• Experience with SVN Source Code management techniques/ tools for software management, Knowledge SDLC tools (JIRA).
• Demonstrated teamwork and ability to work with diversified multi-location team.

• Own and implement features used by large customers like Truecaller, Mozilla, Zomato, Netflix, etc.
• Performance, Security and Usability goals are in DNA.
• Full ownership and accountability of Microservices which includes day-to-day operations and maintenance.
• Business and technical Metric definitions and reviews.
• Drive CI & CD Evaluate technologies and development stacks for API-based platform which scales to 100,000 transactions per second.
• Perform push-button deployments of any version of the software to any environment on demand.
• Design and build web apps that are scalable and puts user experience front and center.
• Develop modular UI components for company-wide reuse.
• Evolve a common design language for UI across apps.
• Establish and advocate front-end coding guidelines.
• Meld UX and great-looking UI while keeping excellent code quality.
• Own end-to-end life cycle of the product from requirement analysis, design, development, test, release, and maintenance.
• Develop reusable tools/libraries
• Identify opportunities for automation and collaboration points.
• Continuously improve cycle time, throughput, and code quality.
• Continuously improve value-adding-activities/non-value-adding activities ratio.

• 4 - 6 years of experience in large-scale distributed systems.
• Proficient in Python/Golang/Java/ http://node.js/">Node.js 
• Understanding of CSS, Advanced Javascript, http://vue.js/">Vue.js, http://react.js/">React.js, and other web technologies.
• Understanding of Rest based API Architecture
• Writing high-performance, reliable and maintainable code.  
• Excellent microservices pattern understanding.  
• Ability to define cross-core contracts and bring them to closure through collaboration.
• Good knowledge of database structures, theories, principles, and practices.  
• Experience working with AWS components [EC2, S3, RDS, SQS, ECS, Lambda].
• Analytical and problem-solving skills  
• Good aptitude in multi-threading and concurrency concepts.  
• Working knowledge of Git and proficiency with at least one build server: Jenkins/Travis/Bamboo.
• Good to have a telecom background