C++
Python- 4–7 years of professional C++ experience in performance-critical systems
- Expert knowledge of modern C++ (C++11/14/17)
- Strong understanding of data structures, algorithms, and memory models
- Deep experience with multithreading, atomics, lock-free programming, and CPU cache behaviour
- Excellent knowledge of Linux internals and system-level programming
- Experience with low-level debugging and profiling (gdb, perf, valgrind, flamegraphs)
- Proficiency with CMake/Make and Git
2. Trading Systems Experience (Highly Preferred)
- Hands-on experience with order management systems (OMS) and execution engines
- Knowledge of exchange protocols: FIX, ITCH, OUCH, FAST
- Experience handling market data feeds (L1/L2, multicast, UDP)
- Understanding of latency measurement, clock synchronization, and time stamping
- Experience with network tuning (kernel bypass, socket tuning, CPU pinning)
- Familiarity with trading lifecycle, risk checks, and throttling mechanisms
3. Education
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related discipline
4. Soft Skills (Important for Trading Firms)
- Ability to work under extreme time and accuracy pressure
- Strong ownership of production systems
- Clear and direct communication with traders and quants
- Bias toward simple, fast, and reliable designs
5. Key Responsibilities
- Design, develop, and optimize ultra-low-latency C++ trading applications
- Build and maintain exchange connectivity and order execution systems
- Develop real-time market data pipelines with strict latency requirements
- Optimize systems at CPU, memory, and network levels
- Implement lock-free or low-lock concurrent designs
- Analyze latency using profiling tools and improve tail latency
- Ensure high availability, fault tolerance, and rapid recovery
- Work closely with Traders and Quant Researchers to implement strategies
- Participate in architecture and performance design reviews
- Review code, enforce best practices, and mentor junior engineers
- Support production systems and handle time-critical issues when needed
Shubham Vishwakarma
Full Stack Developer - Averlon
About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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JavaJob Title: Senior Linux Kernel Engineer
Experience: 5–10 Years
Location: Bangalore / Chennai
Domain: Enterprise Linux / Kernel Development
Job Summary
We are seeking a highly skilled Senior Linux Kernel Engineer with deep expertise in kernel development, debugging, and performance optimization. The role involves working on enterprise-grade Linux distributions, kernel lifecycle management, security patching, and low-level hardware integration.
Key Responsibilities
1. Kernel Lifecycle & Maintenance
- Lead kernel upgrade strategies (e.g., LTS migrations such as 5.15 → 6.x) while ensuring stability and compatibility.
- Perform patch porting across kernel versions, resolving API and dependency conflicts.
- Track and mitigate security vulnerabilities by monitoring CVEs and upstream sources (e.g., LKML).
- Backport critical fixes to production kernels without impacting system stability.
2. Debugging & System Stability
- Act as an escalation point for kernel panics and system crashes.
- Perform post-mortem analysis using kdump, crash, and gdb.
- Debug early boot issues (UEFI, initramfs, kernel initialization).
- Conduct performance analysis using eBPF, ftrace, and perf to optimize system behavior.
3. Driver Development & Hardware Integration
- Design, develop, and maintain device drivers (network, storage, GPU, or character devices).
- Work closely with hardware through DMA, interrupts (MSI-X), and register-level programming.
- Maintain out-of-tree drivers using DKMS or similar frameworks.
- Ensure compatibility of drivers across kernel updates.
Required Technical Skills
- Programming: Strong expertise in C (mandatory) and C++
- Kernel Internals: Deep understanding of:
- Virtual File System (VFS)
- Memory Management (MMU, Paging)
- Process Scheduler
- Linux Networking Stack
- Debugging Tools:
- kdump, crash, gdb
- kprobes, trace-cmd, ftrace
- perf, valgrind
- Hardware debugging tools (JTAG, Serial Console)
- Build Systems:
- Kbuild, Makefiles
- Kernel packaging (RPM/Debian)
- Security:
- Experience with CVE patching and backporting
- Knowledge of SELinux/AppArmor
- Kernel hardening (FIPS, KSPP)
Preferred Skills
- Experience contributing to open-source kernel projects
- Familiarity with Linux Kernel Mailing List (LKML) workflows
- Exposure to enterprise Linux distributions (RHEL, Ubuntu, SUSE)
- Experience with performance tuning and system optimization at scale
1. Core Programming (C Language)
- Must have strong hands-on experience in C programming
- Comfortable with pointers, memory management, and low-level concepts
2. Kernel Internals Expertise
- Should have worked in at least one subsystem:
- VFS / File Systems
- Memory Management
- Scheduler / Networking
3. Debugging & Crash Analysis
- Experience handling kernel panics
- Hands-on with vmcore analysis tools
4. Security & Patching
- Understanding of CVE fixes and backporting
5. Driver Development
- Experience in writing or maintaining device drivers
6. Performance & Advanced Debugging
- Exposure to eBPF, ftrace, perf
7. Hardware-Level Understanding
- Knowledge of DMA, interrupts, hardware interaction
Soft Skills
- Strong analytical and problem-solving abilities
- Excellent communication skills
- Ability to work independently and in collaborative environments
- Quick learner with adaptability to new technologies
Python
Javascript
NodeJS (Node.js)JavaKey Responsibilities:
- Development & Customization: Develop and support client-specific customizations, integration, and automation under guidance.
- Ownership: Deliver assigned development tasks with quality, within estimated effort and timelines
- Established Tools and Processes: Follow established tools, coding standards, SDLC, CI/CD, and security practices.
- Collaboration: Partner effectively across a global team, including Team Lead/Senior Developers, consultants, project managers, Deltek partners and subcontractors, and cloud operations.
- Quality Assurance: Follow established security, quality, and testing protocols. Support testing activities, fix defects and rework items under guidance to maintain customer satisfaction and governance standards.
- Leverage AI-first methodology throughout the project lifecycle: use AI-powered tools to design, develop, and maintain scalable technical solutions.
- Continuous Improvement: Actively engage in learning new tools, technologies, and Deltek product capabilities.
Qualifications :
- Required Skills:
- Academic qualification: Bachelor’s degree (2025/2026 Pass out) in Computer Science/IT & E&C/ MCA. Minimum 70% & above in academics throughout.
- Job Location: Only Bangalore Candidates
- Project experience: Entry‑level experience through academic projects, internships, labs, or personal/open‑source projects.
- Development & Engineering Practices: Knowledge of object-oriented programming, core software development principles, and computer science fundamentals such as data structures, algorithms, and logical problem solving.
- Analytical and Problem‑Solving Skills: Strong analytical and problem‑solving skills, with the ability to learn and apply new concepts quickly
- Communication Skills: Good verbal and written communication skills in English, with the ability to participate in technical discussions and explain ideas clearly.
- Learning Mindset: Strong analytical and problem‑solving skills, with the ability to learn and apply new concepts quickly
- Technical Skills
- Programming Fundamentals: Basic proficiency in at least one programming language such as Python, JavaScript (Node.js preferred), Java, or C/C++, with understanding of object‑oriented programming concepts.
- Computer Science Foundations: Knowledge of data structures, algorithms, and basic software design principles gained through academic or project work.
- Web & Integration (Exposure): Introductory experience with web applications, APIs, integrations, or automation through coursework or hands‑on projects.
- Testing & Debugging: Basic Understanding of unit testing, debugging, and defect fixing as part of the development lifecycle.
- Tools & Platforms (Exposure): Familiarity with development tools such as IDEs, version control (Git), and basic build or deployment concepts.
- AI Tools (Plus): Hands‑on experience or foundational knowledge of AI/LLM‑based tools (such as AI assistants or copilots) and prompt engineering.
- Success Criteria for the Role
- Requirement Clarity: Quickly grasp and clarify assigned requirements or technical specifications, ensuring tasks are well-defined and minimizing the need for rework.
- Execution: Consistently completes development tasks and project assignments within agreed timelines, proactively communicating risks or blockers to avoid delays or scope drift.
- Quality: Delivers code with low defect rates by following coding standards and thorough testing, leading to successful QA/UAT outcomes with minimal rework or iterations.
- Collaboration & Communication: Receives positive feedback from team leads/Senior developer, peers, and stakeholders for clear communication, teamwork, and reliable technical contributions.
- AI Adoption: Demonstrate efficiency gains through AI usage including faster specification writing, improved code quality, automated testing.
- Why Join Deltek?
- At Deltek, you'll be part of a forward-thinking team dedicated to delivering innovative ERP solutions that empower organizations to achieve their goals. Our culture values collaboration, professional growth, and flexibility, providing you with opportunities to work on impactful projects and advance your career. You'll benefit from our commitment to leveraging cutting-edge AI capabilities, enabling you to design more innovative, more efficient solutions for our clients. Join us to make a difference in a supportive environment where your expertise is valued and your contributions drive real business success.
Java
Spring BootWissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, and data structure.
We are solving complex technical problems in the financial 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 highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
Experience - 3+.
Experience in Core Java 5.0 and above, CXF, Spring.
Extensive experience in developing enterprise-scale n-tier applications for financial domain. 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, preferably Sybase database.
Good knowledge of multi-threading and high-volume server-side development.
Experience in sales and trading platforms in investment banking/capital markets.
Basic working knowledge of Unix/Linux.
Excellent problem solving and coding skills in Java.
Strong interpersonal, communication and analytical skills.
Should have the ability to express their design ideas and thoughts.
JavaPythonJavascriptPython
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Flask● Managing and guiding a team of junior developers for timely delivery of product and
milestones
● Optimization of the application for maximum speed and scalability
● Implementation of security and data protection
● Design and implementation of data storage solutions
● Design & Build: Designing and developing high-volume, low-latency applications for
mission-critical systems, and delivering high-availability and performance.
● Collaborate - Collaborating within your product streams and team to bring best
practices and leverage a world-class tech stack.
● Measurable Outcome - You will need to set quantifiable objectives that encapsulate
the quality attributes of a system. The fitness of the application is measured against
set marks.
● DevOps - You will need to set up every essential (tracking/alerting) to make sure the
infrastructure/software you built is working as expected.
● Design and development of our REST APIs
● Help maintain code quality, architecture, and automation
Required Knowledge and Skills
● 3 - 5 years of experience working in backend development technologies and DevOps
● Highly curious and ready to dive into complex technical challenges.
● Proficiency in development and scripting in Python, Django/Flask framework.
● Database design and management, including being up on the latest practices -
bonus points for MySQL and MongoDB
● User authentication and authorization between multiple systems, servers, and
environments
● Integration of multiple data sources and databases into one system
● Management of hosting environment, including database administration and scaling
an application to support load changes
● Setup and administration of backups
● Understanding differences between multiple delivery platforms such as mobile vs
desktop, and optimizing output to match the specific platform
● Creating database schemas that represent and support business processes
● Implementing automated testing platforms and unit tests
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● Appreciation for clean and well-documented code
● Hands-on experience with architecture and structural design patterns
● Expertise in designing, developing, deploying, and integrating RESTful APIs
● Ability to understand business requirements and translate them into technical
requirements
● A knack for benchmarking and optimization
● Proficient understanding of code versioning tools, such as Git
Personality
● Requires excellent communication skills – written, verbal, and presentation.
● You should be a team player.
● You should be positive towards problem-solving, have a very structural thought
process to solve problems
● Interest to work in a high paced start-up environment with a large amount of learning.
● Good understanding of different frameworks, and be able to pick up new
technologies at ease.
● You should be agile enough to figure out a need for new technologies/frameworks
and learn new technology for better product performanc
Software Development Engineer
Bengaluru/Hyderabad/Gurgaon/Chennai
As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward.
Top Skills
- You write high quality, maintainable, and robust code, often in Java or C++ or C#
- You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.
- You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.
Roles & Responsibilities
- You solve problems at their root, stepping back to understand the broader context.
- You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
- You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
- You recognize and use design patterns to solve business problems.
- You understand how operating systems work, perform and scale.
- You continually align your work with Amazon’s business objectives and seek to deliver business value.
- You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
- You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
- You communicate clearly with your team and with other groups and listen effectively.
Skills & Experience
- Bachelors or Masters in Computer Science or relevant technical field.
- Experience in software development and full product life-cycle.
- Excellent programming skills in any object oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.
- Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.
- Proficiency in SQL and data modeling.
About Amazon.com
“Many of the problems we face have no textbook solution, and so we-happily-invent new ones.” – Jeff Bezos
Amazon.com – a place where builders can build. We hire the world's brightest minds and offer them an environment in which they can invent and innovate to improve the experience for our customers. A Fortune 100 company based in Seattle, Washington, Amazon is the global leader in e-commerce. Amazon offers everything from books and electronics to apparel and diamond jewelry. We operate sites in Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Netherlands, Spain, United Kingdom and United States, and maintain dozens of fulfillment centers around the world which encompass more than 26 million square feet.
Technological innovation drives the growth of Amazon, offering our customers more selection, convenient shopping, and low prices. Amazon Web Services provides developers and small to large businesses access to the horizontally scalable state of the art cloud infrastructure like S3, EC2, AMI, CloudFront and SimpleDB, that powers Amazon.com. Developers can build any type of business on Amazon Web Services and scale their application with growing business needs.
We want you to help share and shape our mission to be Earth's most customer-centric company. Amazon's evolution from Web site to e-commerce partner to development platform is driven by the spirit of invention that is part of our DNA. We do this every day by inventing elegant and simple solutions to complex technical and business problems. We're making history and the good news is that we've only just begun.
About Amazon India
Amazon teams in India work on complex business challenges to innovate and create efficient solutions that enable various Amazon businesses, including Amazon websites across the world as well as support Payments, Transportation, and Digital products and services like the Kindle family of tablets, e-readers and the store. We are proud to have some of the finest talent and strong leaders with proven experience working to make Amazon the Earth’s most customer-centric company.
We made our foray into the Indian market with the launch of Junglee.com, enabling retailers in India to advertise their products to millions of Indian shoppers and drive targeted traffic to their stores. In June 2013, we launched http://www.amazon.in">www.amazon.in for shoppers in India. With www.amazon.in, we endeavor to give customers more of what they want – low prices, vast selection, fast and reliable delivery, and a trusted and convenient online shopping experience. In just over a year of launching our India operations, we have expanded our offering to over 18 million products across 36 departments and 100s of categories! Our philosophy of working backwards from the customers is what drives our growth and success.
We will continue to strive to become a trusted and meaningful sales and logistics channel for retailers of all sizes across India and a fast, reliable and convenient online shopping destination for consumers. For us, it is always “Day 1” and we are committed to aggressively invest over the long-term and relentlessly focus on raising the bar for customer experience in India.
Amazon India offers opportunities where you can dive right in, work with smart people on challenging problems and make an impact that contributes to the lives of millions. Join us so you can - Work Hard, Have Fun and Make History.
DjangoPythonThis includes working on:
a) The main Django application, a large, modern, Django app built using Python 3.8 and the latest Python and Django libraries;
b) The API, built using Django Rest Framework (DRF) that is used both by our web-app and client libraries to build and run data analyses;
c) Backend code that integrates our web server with the rest of our cloud architecture, including our PaaS, data science code, general integrations such as payments, devops code, and more.
Ideally, you should have experience working on Django codebases which serve both server-side rendered pages and APIs via DRF. Frontend/full-stack knowledge is a an advantage but not essential. Familiarity with modern development practices, such as CI/CD, testing, DevOps, Docker, Linux and git would be a big plus. You must have very strong familiarity with Python development, and be excited to pick up the new technologies and skills - for instance we use Python type-hints across our codebase extensively.
You should like the idea of releasing to real customers regularly, and prioritise getting a great product into users’ hands for feedback and iteration. You will have extensive scope to build and architect the backend, and to help grow the team in the future.
PythonDjangoCPython
PostgreSQLJavascriptPython
PHP
MongoDB
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Full Stack Developer - Averlon