Software Engineer, Low-Latency Systems

🧠 Job Description: Senior Java Developer (8+ Years Experience)

Location: Mumbai, India

Employment Type: Full-time, Hybrid mode of working

Company: Wissen Technology

Website: www.wissen.com

🚀 About Wissen Technology

Wissen Technology is a specialized technology consulting firm delivering cutting-edge solutions to global leaders in Banking & Finance, Telecom, and Healthcare. Established in 2015 and part of the Wissen Group (founded in 2000), Wissen has scaled rapidly with impressive impact and recognition.

• 🌍 Offices in US, UK, India, Australia, Mexico, and Canada
• 👥 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
• 🏆 Great Place to Work® Certified
• 🧠 Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
• 📈 Achieved 400% revenue growth in 5 years (with zero external funding)
• 💼 Delivered $1B+ worth of projects to 50+ Fortune 500 companies

Learn more about our work and thought leadership:

📄 Articles by Wissen | 💼 LinkedIn

About the Role

We are seeking an experienced Senior Java Developer with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals in Java, OOPS, Multithreading, Spring concepts, and SQL, and will play a key role in designing, developing, and optimizing enterprise-grade solutions.

Key Responsibilities

• Design, develop, and maintain complex applications using Core Java and Spring frameworks
• Apply advanced Object-Oriented Programming (OOPS) principles to deliver clean, modular, and reusable code
• Implement and optimize multithreaded applications for high-performance systems
• Work with SQL databases for efficient data modeling, query optimization, and integration
• Collaborate with cross-functional teams to gather requirements and translate them into technical solutions
• Conduct code reviews, troubleshoot issues, and ensure adherence to best practices
• Mentor junior developers and contribute to technical knowledge sharing within the team
• Ensure application scalability, performance tuning, and security compliance

Required Skills & Qualifications

• Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
• 8+ years of professional experience in Java development
• Strong expertise in Core Java, OOPS, and Multithreading
• Hands-on experience with Spring concepts (Spring Core, Spring MVC, Spring Boot preferred)
• Proficiency in SQL and database design (MySQL, Oracle, PostgreSQL, etc.)
• Solid understanding of software development life cycle (SDLC) and Agile methodologies
• Strong analytical, problem-solving, and communication skills

🌟 Why Wissen?

Join a company that combines start-up agility with enterprise stability. Work alongside some of the brightest minds from institutions like MIT, Wharton, IITs, IIMs, and NITs. Be part of mission-critical projects for Fortune 500 giants, and grow in a culture that invests in your future.

Java/Python Developer(60% Java - 40% Python) - Mid Level Hands On Strong Developer

- 3 Years to 5 Years - Level 2

- 5 Years to 7 Years - Level 3

Location - Mumbai Commerz3 Office Only

He/She candidate must possess a strong technology background with advanced knowledge of Java

and Python based technology stack.

Java, J2EE, Spring MVC, Python, JPA, Spring Boot, REST API, Database, Playwright, CI/CD pipelines

. At least 3 years of Hand-on Java EE and Core Java experience with strong leadership qualities.

. Experience with Web Service development, REST and Services Oriented Architecture.

. Expertise in Object Oriented Design, Design patterns, Architecture and Application Integration.

· Working knowledge of Databases including Design, SQL proficiency.

. Strong experience with frameworks used for development and automated testing like SpringBoot, Junit, BDD etc.

. Experience with Unix/Linux Operating System and Basic Linux Commands.

. Strong development skills with ability to understand technical design and translate the same into workable solution.

. Basic knowledge of Python and Hand-on experience on Python scripting

. Build, deploy, and monitor applications using CI/CD pipelines.

We are seeking a highly skilled C++ Developer with 6–9 years of experience to design,

develop, and maintain high-performance software applications. The ideal candidate will

have a strong foundation in object-oriented programming, data structures, and

system-level programming, with a focus on delivering efficient and scalable

solutions.

Key Responsibilities:

 Design, develop, and maintain robust and efficient applications using C++.

 Write clean, maintainable, and optimized code following best practices.

 Debug, troubleshoot, and resolve performance bottlenecks and issues.

 Collaborate with cross-functional teams, including QA, DevOps, and Product

Management, to deliver high-quality software solutions.

 Participate in code reviews and contribute to improving coding standards.

 Prepare and maintain technical documentation for development processes and

modules.

 Work on integrating software components and third-party libraries.

 Optimize application performance and scalability for large-scale systems.

Required Skills and Qualifications:

 6–9 years of hands-on development experience in C++.

 Strong knowledge of object-oriented programming, STL, and design

patterns.

 Experience with multithreading, memory management, and performance

tuning.

 Familiarity with Linux/Unix environments and shell scripting.

 Good understanding of network programming and socket-level communication.

 Experience working with version control systems like Git.

 Strong problem-solving and debugging skills.

 Excellent communication and collaboration abilities.

Preferred Qualifications:

 Experience with modern C++ standards (C++11/14/17 or later).

 Knowledge of database systems such as MySQL, PostgreSQL, or NoSQL

databases.

 Exposure to cloud platforms like AWS, Azure, or GCP.

 Familiarity with CI/CD pipelines and DevOps tools.

 Background in Agile/Scrum methodologies.

Job Description:

We are looking for a highly skilled Software Developer with 3-5 years of hands-on experience in LAMP Stack development. The ideal candidate will be responsible for developing and maintaining web applications, ensuring high performance, and collaborating with cross-functional teams to define and ship new features.

Key Responsibilities:

• Develop, maintain, and optimize web applications using LAMP Stack (Linux, Apache, MySQL, PHP)

• Design efficient, scalable, and secure backend systems.

• Collaborate with frontend developers and project stakeholders to deliver high-quality products.

• Write well-structured and testable code, following best practices in PHP.

• Troubleshoot, debug, and upgrade existing applications.

• Develop APIs and integrate third-party services.

• Manage and maintain databases using MySQL.

• Perform system and server maintenance on Linux/Unix environments.

• Use Shell scripting to automate routine tasks and deployments.

• Work with the ELK stack (Elasticsearch, Logstash, Kibana) for logging and monitoring.

Qualifications:

• BE/B.Tech in Computer Science/Information Technology/Electronics and Communications

• 3-5 years of proven experience as a Software Developer working with LAMP Stack

• Proficient in PHP, and MySQL.

• Solid experience with Linux/Unix environments, including command-line proficiency.

• Knowledge of Shell Scripting and basic system automation.

• Familiarity with ELK Stack for application monitoring and logging.

• Strong understanding of web protocols, API integration, and database optimization.

• Experience with version control systems like Git.

• Ability to work in an Agile environment and manage multiple tasks efficiently.

Nice to Have:

• Experience with other Python frameworks besides Flask.

• Knowledge of cloud platforms (AWS, Google Cloud) for deploying and scaling applications.

• Familiarity with containerisation technologies like Docker.

Benefits:

• Competitive salary and performance bonuses.

• Medical and insurance coverage.

• Opportunities for professional development and growth.

• Flexible working hours and remote working options.

• Augmenting, improving, redesigning, and/or re-implementing Dolat's low-latency/high-throughput production trading environment, which collects data from and disseminates orders to exchanges around the world
• Optimizing this platform by using network and systems programming, as well as other advanced techniques
• Developing systems that provide easy access to historical market data and trading simulations
• Building risk-management and performance-tracking tools
• Shaping the future of Dolat through regular interviewing and infrequent campus recruiting trips
• Implementing domain-optimized data structures
• Learn and internalize the theories behind current trading system
• Participate in the design, architecture and implementation of automated trading systems
• Take ownership of system from design through implementation

• We are one of the fastest-growing game development companies with headquarters in
• Bangalore, India. Since our inception in 2017, we have carved a niche in the gaming industry by our highly creative and expert approach to game design, artwork and development. Our two games, ‘Ludo STAR’ and ‘Parchisi STAR’ have already reached 50 million global downloads.
• We have a grand vision of being the “Best Game Developing Company” in the world. We are vastly committed to developing visually appealing and technically advanced games for diverse platforms and game applications that appeal to all ages.
• We offer an autonomous studio consisting of self-motivated teams in a fast decision-making
• environment, allowing you to be truly impactful and develop professionally.
• It’s an exciting time to come aboard, career experience as a lead developer working with leadership teams.

• Develop new features and improve existing code in C++, specializing in the iOS/Android platforms.
• Has experience with working on huge codebases and comfortable writing and debugging multi-threaded & asynchronous code in Android and the native C++ libraries.
• Understands the resource constraints of mobile devices and implements accordingly robust and efficient solutions with respect to CPU, memory and battery life.
• Be customer-focused and unafraid to challenge the status quo

• Work as part of a dedicated, high-energy team to develop code that spans multiple products.

• Maintain exceptional development standards, especially related to performance, robustness, and testing.

• Support other development teams, build robust relationships and effectively articulate complex ideas.

• Proactively learn new languages, libraries, and platforms as needed. Adapt quickly to changing requirements.

• Activity planning and estimations
• Participate in the design and architecture of the overall product and lead the same for your features.
• Study upcoming technologies, analyze and propose how they can be incorporated to improve the existing product.
• Create high & low-level design artifacts.
• Code Reviews
• Mentoring Android developers in the team
• Develop document solutions for close to a million Acrobat Android users 
• We are looking for you if your answer to the following questions is YES

• Are you interested to be part of a highly collaborative team developing next-generation document solutions?
• Have you developed mobile applications having complex UI and high performance?
• Do you like to solve problems and possess an aptitude for analytical troubleshooting?