11+ Query optimization Jobs in Bangalore (Bengaluru) | Query optimization Job openings in Bangalore (Bengaluru)

Position Title : Senior Database Administrator (DBA)

📍 Location : Bangalore (Near Silk Board)

🏢 Work Mode : Onsite, 5 Days a Week

💼 Experience : 6+ Years

⏱️ Notice Period : Immediate to 1 Month

Job Summary :

We’re looking for an experienced Senior DBA to manage and optimize databases like MySQL, MongoDB, PostgreSQL, Oracle, and Redis. You’ll ensure performance, security, and availability of databases across our systems and work closely with engineering teams for support and improvement.

Key Responsibilities :

• Manage and maintain MySQL, MongoDB, PostgreSQL, Oracle, and Redis databases.
• Handle backups, restores, upgrades, and replication.
• Optimize query performance and troubleshoot issues.
• Ensure database security and access control.
• Work on disaster recovery and high availability.
• Support development teams with schema design and tuning.
• Automate tasks using scripting (Python, Bash, etc.).
• Collaborate with DevOps and Cloud (AWS) teams.

Must-Have Skills :

• 6+ Years as a DBA in production environments.
• Strong hands-on with MySQL, MongoDB, PostgreSQL, Oracle, Redis.
• Performance tuning and query optimization.
• Backup/recovery and disaster recovery planning.
• Experience with AWS (RDS/EC2).
• Scripting knowledge (Python/Bash).
• Good understanding of database security.

Good to Have :

• Experience with MSSQL.
• Knowledge of tools like pgAdmin, Compass, Workbench.
• Database certifications.

Tele sales Executive (BL,PL,Credit card,LAP )

Location: Whitefield, Bangalore

Age Limit: 19 – 30 years

Salary: ₹21000 – ₹28,000 (based on interview) + Incentives

Education: 12th Pass & Above (No Technical background Required)

CIBIL score required above 600 above (mandatory)

Job Timing: 9:30 AM – 7:30 PM (Rotational Shift)

Language-Hindi and English Fluent Mandatory

Java GS Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore 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. - 2- 7 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 Java GS 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 

Job Title: Java Developer 

Experience: 4 –10 Years 

Location: Mumbai / Bangalore 

Employment Type: Full-time 

We are looking for experienced and passionate Java Developers with strong expertise in Core Java, multithreading, and performance tuning. You will be responsible for designing and developing high-performance, scalable, and resilient backend systems. This is an exciting opportunity to work on complex, enterprise-level systems and modern architectures like microservices and event-driven frameworks.

 • 3–10 years of hands-on experience in Java (8 or above) development. 

 • Strong foundation in OOPs, data structures, algorithms, and design patterns.

 • Deep understanding of multithreading, concurrency, and synchronization techniques.

 • Experience with Spring Boot, Spring MVC, JPA/Hibernate. 

 • Good working knowledge of RESTful API development. 

 • Proficient in SQL and experience with relational databases like MySQL, PostgreSQL, etc.

 • Familiarity with Git, Maven/Gradle, and CI/CD pipelines. 

 • Exposure to Agile/Scrum methodology

Role: Sr. Java Developer

Experience: 6+ Years

Location: Bangalore (Whitefield)

Work Mode: Hybrid (2-3 days WFO)

Shift Timing: Regular Morning Shift

About the Role:

We are looking for a seasoned Java Developer with 6+ years of experience to join our growing engineering team. The ideal candidate should have strong expertise in Java, Spring Boot, Microservices, and cloud-based deployment using AWS or DevOps tools. This is a hybrid role based out of our Whitefield, Bangalore location.

Key Responsibilities:

• Participate in agile development processes and scrum ceremonies.
• Translate business requirements into scalable and maintainable technical solutions.
• Design and develop applications using Java, Spring Boot, and Microservices architecture.
• Ensure robust and reliable code through full-scale unit testing and TDD/BDD practices.
• Contribute to CI/CD pipeline setup and cloud deployments.
• Work independently and as an individual contributor on complex features.
• Troubleshoot production issues and optimize application performance.

Mandatory Skills:

• Strong Core Java and Spring Boot expertise.
• Proficiency in AWS or DevOps (Docker & Kubernetes).
• Experience with relational and/or non-relational databases (SQL, NoSQL).
• Sound understanding of Microservices architecture and RESTful APIs.
• Containerization experience using Docker and orchestration via Kubernetes.
• Familiarity with Linux-based development environments.
• Exposure to modern SDLC tools – Maven, Git, Jenkins, etc.
• Good understanding of CI/CD pipelines and cloud-based deployment.

Soft Skills:

• Self-driven, proactive, and an individual contributor.
• Strong problem-solving and analytical skills.
• Excellent communication and interpersonal abilities.
• Able to plan, prioritize, and manage tasks independently.

Nice-to-Have Skills:

• Exposure to frontend technologies like Angular, JavaScript, HTML5, and CSS.

We are looking for a Flutter mobile application developer who possesses a passion for pushing mobile technologies to the limits. Our ideal candidate is a great Flutter developer who is proficient with iOS / Android / Flutter and its ecosystem.

Responsibilities

• Solid understanding of Flutter, Dart, Flutter animations
• Build mobile applications using Flutter for hybrid, Android and iOS platforms
• Collaborate with cross-functional teams to define, design, and ship new features
• Work with outside data sources and APIs
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Strong understanding of design patterns over and above MVP, MVVM, and MVC
• Knowledge of Location Services, Maps, and other common Android/iOS libraries
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Requirements

• BS/MS degree in Computer Science, Engineering or a related subject
• At least 3 years of relevant Flutter development experience.
• Must have built at least two Android and/or iOS apps with Flutter from scratch
• Experience with Android SDK
• Experience with third-party libraries and APIs
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
• Solid understanding of the full mobile development life cycle.

• Sound knowledge in controller design and analysis.
• Good understanding in optimisation based control algorithms.
• Experience with implementing PID controller for various unstable system.
• Experience with vehicle modelling and analysis.
• Good understanding of implementation/debugging/testing model and control algorithms.
• Candidate should have experience in programming concepts like OOPS in C++ and Python with robust and efficient coding.
• Experience in Matlab/Simulink, Stateflow.
• Good understanding in code generation, implementation and testing for real time intergration embedded system.

• Algorithm development for different control features.
• Testing of algorithm architecture along with tuning and validation.
• Working with simulation team to integrate and test models and algorithms into simulation environment for rapid development and validation.
• Tuning and validation of plant models to emulate real physical systems’ behaviour
• Co-ordination with other departments to maintain consistency and compatibility in department stack.

• ROS and ROS2 experience
• Vehicle dynamics modelling and simulation.
• Experience with version control using Git.

• Health Insurance
• Employee Stock Options
• Work from Home
• Flexible work hours
• Monthly Team outings and events
• Budget for up-skilling
• Flexible vacation

‘Project Manager’ will be completely responsible for building a very robust team to operationally manage, meet KPIs, build strategy, and execute the project.

• Determine and define project scope and objectives
• Predict resources needed to reach objectives and manage resources in an effective and efficient manner
• Prepare a budget based on the scope of work and resource requirements
• Track project costs in order to meet budget
• Develop and manage a detailed project schedule and work plan
• Provide project updates on a consistent basis to various stakeholders about strategy, adjustments, and progress
• Manage contracts with vendors and suppliers by assigning tasks and communicating expected deliverables
• Utilize industry best practices, techniques, training, and standards throughout the entire project execution
• Monitor progress and make adjustments as needed
• Measure project performance to identify areas for improvement

While working at the company also endure...

• Opportunity to work with all the top-notch growing brands and startups
• Learning marketing, integrated campaigns, and growth
• -hacking of brands in different sectors
• Becoming a part of an enthusiastic, amazing culture, and fast-growing organization
• Opportunity to become an active stakeholder and driver of the organization

What you will need:

• Graduate degree with 2-4 years of experience handling projects, campaigns, and team
• Candidate with an agency, offline marketing execution, or startup background would be preferred
• Quick learner, confident, good presentation & relation-building skills
• Open for travel and ready to go the extra mile if the situation demands
• Keen attention to detail and good at spotting opportunities
• Client/Agency relationship exposure with strong relationship management skills
• Go-Getter attitude and responsibility to close all loops creatively - Long term vision and commitment