11+ SQL tuning Jobs in Bangalore (Bengaluru) | SQL tuning Job openings in Bangalore (Bengaluru)

Primary Responsibilities

• Architect and drive complex software performance improvement projects that mitigate the performance challenges of the product and establish new guidelines for future product features
• Work with the development team, and database administrators to analyze performance bottlenecks, make recommendations to address performance concerns, and co-design performance into new feature development
• Efficiently working with various profiling and monitoring tools to identify performance and concurrency bottlenecks, propose and implement optimizations to improve cloud product
• Review end-user usage patterns and customer logged performance defects and enhance performance test coverage based on gaps identified.
• Understand database internals, server and storage system design, application interactions with database queries and stored procedures and with other downstream systems
• Troubleshoot issues experienced by users and propose solutions

Basic Qualifications

• 8+ years of experience in implementing and driving software performance engineering projects and solutions. Advanced level experience with concurrency, multithreading, and distributed system architectures
• Experience analyzing performance bottlenecks with application code interfacing with databases using ORM Frameworks, cache layers, data storage, servers, networking, and database query protocols including developing stored procedures, SQL queries, and database applications
• Working knowledge of relational database internals (locking, consistency, replication, serialization, failover, recovery)
• Comfortable with Windows, SQL Server, .NET Framework/Core, GIT, Nuget, SPA, Modern UI Frameworks, ORM Framework NHibernate in terms of both tools and application development
• Passionate about finding software performance bottlenecks and optimizing code to produce a better customer experience
• Experience with APM (Application Performance Monitoring), RUM (Real User Monitoring), and other Dev tools used for Performance monitoring and analysis
• Experience with performance bottleneck analysis, system design for scaling

About Us:

We’re a fast-growing fintech startup building cutting-edge trading platforms for brokers and financial institutions. We move fast, break barriers, and redefine what’s possible in trading technology. Our systems power real-time market data, high-frequency trade execution, and risk management, ensuring seamless transactions at lightning speed. If you thrive in an environment where innovation meets extreme performance, this is the place to be.

What We Expect:

• 4+ years of experience in C++ development, specializing in high-performance, low-latency systems.

• Deep expertise in modern C++ (C++14/17/20), multithreading, and concurrency.

• Strong Qt development experience for building real-time, high-performance trading UIs.

• Experience building ultra-fast order execution engines, market data feeds, and real-time risk

management tools.

• Strong understanding of networking protocols (TCP/IP, UDP, FIX) and interprocess communication (IPC, shared memory, message queues).

• Hands-on experience with latency optimization, performance tuning, and profiling tools (perf, Valgrind, gprof, etc.).

• Proficiency in memory management, lock-free programming, and CPU cache optimization.

• A deep understanding of exchange connectivity, order matching engines, and algorithmic trading systems.

• A hacker mentality—you love solving problems that seem impossible.

What You Will Do:

• Architect, develop, and optimize ultra-low-latency C++ trading applications that handle millions of transactions per second.

• Build high-performance market data processing solutions with microsecond-level latencies.

• Develop real-time, intuitive, and high-speed trading interfaces using Qt.

• Work on exchange connectivity, FIX protocol integrations, and risk management systems.• Profile and optimize code to achieve maximum throughput and minimal latency.

• Solve some of the hardest engineering problems in fintech alongside an elite team.

• Experiment with new technologies to stay ahead of the competition.

• Own your work end-to-end—from concept to deployment, pushing the limits of what’s possible.

Why Join Us?

• Be part of a high-energy startup with massive growth potential.

• Work with visionary fintech leaders and top-tier engineers.

• Build industry-defining products that will shape the future of trading.

• A culture that values bold ideas, rapid execution, and relentless optimization.

• Competitive compensation and a real opportunity to lead and innovate.

If you’re obsessed with performance, love breaking speed barriers, and want to be part of something

big, we want you on our team. This is your chance to build the future of trading. Let’s disrupt together.

Apply now.

Role:Java Developer

Job Description: We are looking for a talented and motivated Software Engineer with expertise in both Windows and Linux operating systems and solid experience in Java technologies. The ideal candidate should be proficient in data structures and algorithms, as well as frameworks like Spring MVC, Spring Boot, and Hibernate. Hands-on experience working with MySQL databases is also essential for this role.

Responsibilities:

● Design, develop, test, and maintain software applications using Java technologies.

● Implement robust solutions using Spring MVC, Spring Boot, and Hibernate frameworks.

● Develop and optimize database operations with MySQL.

● Analyze and solve complex problems by applying knowledge of data structures and algorithms.

● Work with both Windows and Linux environments to develop and deploy solutions.

● Collaborate with cross-functional teams to deliver high-quality products on time.

● Ensure application security, performance, and scalability.

● Maintain thorough documentation of technical solutions and processes.

● Debug, troubleshoot, and upgrade legacy systems when required.

Requirements:

● Operating Systems: Expertise in Windows and Linux environments.

● Programming Languages & Technologies: Strong knowledge of Java (Core Java, Java 8+).

● Frameworks: Proficiency in Spring MVC, Spring Boot, and Hibernate. ● Algorithms and Data Structures: Good understanding and practical application of DSA concepts.

● Databases: Experience with MySQL – writing queries, stored procedures, and performance tuning.

● Version Control Systems: Experience with tools like Git.

● Deployment: Knowledge of CI/CD pipelines and tools such as Jenkins, Docker (optional

Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore/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 to 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 Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers 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. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. 

Responsibilities: 

• Ensure the quality of architecture and design of systems. 
• Functionally decompose complex problems into simple, straight-forward solutions. 
• Analyze and improve data quality and metrics. 
• Fully and completely understand system interdependencies and limitations. 
• Leverage knowledge of internal and industry in design decisions. 
• Assist in the career development of others, mentoring on advanced technical issues and helping managers guide the career growth of their team members. 
• Exert technical influence over multiple teams, increasing their productivity and effectiveness by sharing your deep knowledge and experience. 
• Skilled in translating high level abstract business requirements into software design, designing systems specifications, standards, and programming 
• Contribute to Architectural blueprints and Design for the software solutions 
• Mentor team on engineering best practices such as writing clean code, designing scalable, reliable and performant software solutions, set and ensure compliance to software quality standards etc. 
• Be a role model for the team with innovative thinking, passion for continuous learning and contributions to the project. 

Qualifications, Skills & Experiences 

• BE / B.Tech /M.Tech in Computer Science or a related field 
• Minimum 7+/5+ years of experience building large scalable systems 
• Minimum 2+ years of recent experience in building products on cloud is a plus 
• Knowledge of asynchronous programming and WebAPI development is required 
• Knowledge and awareness of cloud/ application security is must (OWASP at the minimum) 
• Strong knowledge in OOPS with C#, .Net(or Java) with SQL Server or any RDBMS 
• Strong experience in architecting and building multi-threaded, distributed systems. 
• Strong knowledge of data structures, algorithms, and designing for performance. 
• Ability to achieve stretch goals in a highly innovative and fast paced environment. 
• Extensive experience of mentoring junior engineers to success. 
• Experience with Microservices Architecture is a plus 
• Working knowledge of CI/CD pipelines and AWS/Azure cloud services is plus 
• Hands on experience of building products for unix systems in addition to windows is a plus 
• Excellent Communication 

• BS/MS in Computer Science or Engineering.
• 8+ years of experience in software development in an object-oriented language such as Java, .NET or Node.Js
• Exceptional design, coding, and problem-solving skills, with a bias for architecture at scale.
• Experience with HTML5, JavaScript, TypeScript, front-end technologies like AngularJS, Redux / React and upcoming web technologies.
• Real-world experience developing large scale commercial services with robust performance, resiliency, and telemetry, delivered both Online and OnPrem.
• Strong knowledge of computer science, algorithms, and design patterns.
• Ability to appreciate complex problems with a thorough design.

Job description

Do you want to work with high traffic OLTP and OLAP systems that provide real value to retailers? Want to build real web applications that work across multiple channels and devices? In this critical role, the right candidate should have an entrepreneurial mind-set, have experience working across an application stack and a strong background in developing complex web experiences that are rich, responsive and interactive. The individual should have exhibited good technical leadership skills and be a highly motivated individual.

Role & Responsibility

• Exhibit strong technical knowledge, leadership skills and independent execution.
• A keen eye for good experiences. Understanding the experience from a customer perspective.
• Drive design discussion of complex features and own development of these modules across the application stack.
• Ability to adapt to changing business and product needs.
• Experience evolving the design and operation scale as new features are added to the product
• Mentor junior developers and ensure quality code output (via code reads, reading references, etc.) from them.
• Co-ordinate with internal teams and external partners in ensuring we build the best solution on time for the customer. Constantly looking at ways to innovate and improve the product.
• 8+ years of experience in Java & J2EE based Web Technologies & Frameworks with a focus in either Service Oriented Architecture or APIs. 
• Experience in designing scalable solutions in a large-scale distributed environment.
• Strong knowledge of web technologies, common web frameworks, networking, SQL and database technologies
• Well versed in software engineering principles, frameworks and technologies
• Strong debugging / troubleshooting skills.
• Ability to propose and defend solutions.
• Ability to work closely with product management, customer support, and  other engineering teams to continuously evolve and innovate the enterprise-class Products.