11+ OSI Jobs in Bangalore (Bengaluru) | OSI Job openings in Bangalore (Bengaluru)

• Proven record of designing and delivering complex networking products from inception to production delivery. 
• Previous experience developing quality software for commercial products.
• Experience with communication systems involving wireless, radio, security and mesh networking technologies is a plus.
• Ability to work in a small team on fast paced projects that have tight deadlines
• Experience using Agile/Scrum methodologies.
• Seeking 10+ years software development experience
• Experience with Embedded real-time systems
• Must be an excellent SW developer. We expect experience developing software C/C++ in Linux. Python and other scripting languages is a plus.
• Target hardware includes Embedded CPU, DSP, and ARM environments
• Experience with Linux development infrastructure, tool chain and build environment.
• Experience developing both Linux device drivers and application software; installing Linux software and configuring embedded Linux systems
• Experience with OSI networking protocols and applications
• Experience and knowledge of Board Support package (BSP) development including board bring up, tool chain creation, and firmware/diagnostics support
• Experience with system development tools, including Source-Level Debuggers, Logic Analyzers, Oscilloscopes, Code Analysis tools, etc.

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.

Title: Quantitative Developer

Location : Mumbai

Candidates preferred with Master's

Who We Are

At Dolat Capital, we are a collective of traders, puzzle solvers, and tech enthusiasts passionate about decoding the intricacies of financial markets. From navigating volatile trading conditions with precision to continuously refining cutting-edge technologies and quantitative strategies, our work thrives at the intersection of finance and engineering.

We operate a robust, ultra-low latency infrastructure built for market-making and active trading across Equities, Futures, and Options—with some of the highest fill rates in the industry. If you're excited by technology, trading, and critical thinking, this is the place to evolve your skills into world class capabilities.

What You Will Do

This role offers a unique opportunity to work across both quantitative development and high frequency trading. You'll engineer trading systems, design and implement algorithmic strategies, and directly participate in live trading execution and strategy enhancement.

1. Quantitative Strategy & Trading Execution

• Design, implement, and optimize quantitative strategies for trading derivatives, index options, and ETFs
• Trade across options, equities, and futures, using proprietary HFT platforms
• Monitor and manage PnL performance, targeting Sharpe ratios of 6+
• Stay proactive in identifying market opportunities and inefficiencies in real-time HFT environments
• Analyze market behavior, particularly in APAC indices, to adjust models and positions dynamically

2. Trading Systems Development

• Build and enhance low-latency, high-throughput trading systems
• Develop tools to simulate trading strategies and access historical market data
• Design performance-optimized data structures and algorithms for fast execution
• Implement real-time risk management and performance tracking systems

3. Algorithmic and Quantitative Analysis

• Collaborate with researchers and traders to integrate strategies into live environments
• Use statistical methods and data-driven analysis to validate and refine models
• Work with large-scale HFT tick data using Python / C++

4. AI/ML Integration

• Develop and train AI/ML models for market prediction, signal detection, and strategy enhancement
• Analyze large datasets to detect patterns and alpha signals

5. System & Network Optimization

• Optimize distributed and concurrent systems for high-transaction throughput
• Enhance platform performance through network and systems programming
• Utilize deep knowledge of TCP/UDP and network protocols

6. Collaboration & Mentorship

• Collaborate cross-functionally with traders, engineers, and data scientists
• Represent Dolat in campus recruitment and industry events as a technical mentor

What We Are Looking For:

• Strong foundation in data structures, algorithms, and object-oriented programming (C++).
• Experience with AI/ML frameworks like TensorFlow, PyTorch, or Scikit-learn.
• Hands-on experience in systems programming within a Linux environment.
• Proficient and Hands on programming using python/ C++
• Familiarity with distributed computing and high-concurrency systems.
• Knowledge of network programming, including TCP/UDP protocols.
• Strong analytical and problem-solving skills.

A passion for technology-driven solutions in the financial markets.

Role Description : Senior Java Developer

As a senior developer you will be responsible to manage the software development life cycle from planning to prioritizing to testing and release. Responsibilities includes gathering system and team product requirements, building java modules and testing features before release. Should have hands on experience developing software with agile methodologies and are ready to lead our junior developers.

Responsibilities • Contribute to all phases of development lifecycle. • Planning of API workflow. • Understanding the requirements all the teams involved and planning the development process. • Write well designed, testable, efficient code. • Prepare and produce releases of software components. • Support continuous improvements by investigating alternatives and technologies and presenting these for architecture review. • Designing, implementing, and maintaining java applications that are often high-volume and low latency. • Identify bottlenecks and bugs and advise solutions to these problems. • Develop highly scalable REST APIs to use in our applications. • Guide the team and help them in any complex situations.

Required Qualifications We are looking for individuals who are curious, excited about learning, and navigating through the uncertainties and complexities that are associated with a growing company. Some qualifications that we think would help you thrive in this role are: • Minimum 8+ Years in a Java programming. • Expert hands-on knowledge of latest technology, good exposure to web technologies and open to all technologies like Java, J2EE, Spring Boot, Microservices, Cloud computing, any DB. • Very good exposure to DevOps concepts and tools, Continuous Integration and Continuous Delivery. • Quick learner believes in continuous learning and acts as a catalyst for building the culture within the organization. 

• Analytical thinking skills, problem solving with strong exposure to root causing tools and techniques and ability to come up with solutions in complex situations. • Familiar with various design and architectural patterns. • Bachelor/Masters of CS/IT Engineering, BCA/MCA, B Sc/M Sc in CS/IT

Preferred Qualifications • Deep insights of Java and J2EE internals such as memory management, transaction management, etc. • Skill for writing reusable Java libraries. • Proficient understanding of code versioning tools, such as Git. • Familiarity with build tools such as Ant, Maven, and Gradle. • Ability to work without guidance and under tight deadlines. • Result oriented and focused on meeting deliverable timelines. • Teamwork and willingness to listen to others. • Communicate effectively • Good knowledge of microservices. • Expertise in developing enterprise level web applications and RESTful APIs using Microservices with demonstrable production-scale experience. • Strong background working with Linux/Unix environments. • Working experience in industry standard protocols related API security. • Clear understanding of web services and SOA related standards like REST/OAuth/JSON.

Location: Bengaluru/Udupi (NO WORK FROM HOME OPTION)

Notice Period: Immediate Joining or Maximum 1 Month

Requirements

• 2+ years of experience in the Development of JAVA technology.
• Strong Java Basics
• Linux
• SpringBoot or Spring MVC
• Hands-on experience in Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Java 8
• Any Caching Mechanism
• Good at problem-solving

Good to Have Skills:

• 2+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem-solving skills.
• Ability to work in a fast-paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding AI/ML algorithms is a plus.

Do you have what it takes?

·      Proficient in C, C++ development, OS concepts, Data Structures, Distributed computing, and Algorithms.

·      Actively engaged in projects related to architecture and design (architecture, design patterns, reliability, and scaling).

·      Excellent problem-solving capability with strong fundamentals in Computer Science.

·      Highly proficient in data structures and algorithms.

·      Ability to pick up new technologies rapidly to convert specifications to low level design.

·      Ability to clearly communicate the intent and approach when producing a code design document.

How can you contribute to our success?

·      Develop frontend as well as backend components for delivering product on cloud platforms.

·      Participate in activities that lead up to the code design. This may include activities such as developing prototypes, proof of concept, compare pros and cons of various implementation choices being considered and recommending the most appropriate one.

·      Mentor and influence junior developers to adhere to good coding standards and become quality conscious.

·      Review critical pieces of code that are developed as per this code design.

·      Ensure that the code being delivered is of the highest quality.

·      Ensure appropriate unit tests and functional as well as non-functional tests are considered.

·      Conceptualize and work towards building processes, methodology, and tools to improve team’s ability to deliver high quality software. 

• Develop new features understanding current architecture of system
• Responsible to design , develop, test, integrate and support product life cycle.
• Developing existing systems by analyzing and identifying areas for improvements
• Creating Design/Architecture documents, technical specifications, and test cases in line with Quality systems
• Maintaining systems by identifying and correcting software defectsDeveloping / Influencing Requirements.
• Willing and flexible to work on C++ 
• Consulting internal / external stakeholders concerning maintenance and performance of software systems; implementing software solutions
• "Strong Object Orientated C++

• Develop, design, and implement embedded applications.
• Prepares appropriate documentation as required by internal product development processes and regulatory agencies such as FDA and ISO.
• Write technical specifications for interfaces and testing.
• Design and develop medical device software products with extensive knowledge of technical principles, theories, and concepts in the Software Development field.
• Conducts and participates in the design, code, and test reviews and inspections, ensuring application of software engineering best practices, as well as the feasibility, efficacy, and compliance to functional and regulatory standards.
• Works closely with the software team, the software verification team, the functional manager, and the project manager.
• Collaborates with distributed, cross-functional teams to ensure products meet quality, performance, scalability, reliability, and schedule goals.
• Investigates software, hardware, and system problems using a variety of techniques and provides innovative solutions.
• Conduct and participate in reviews and inspections for all elements in the software lifecycle to ensure that our software quality and customer satisfaction goals are achieved

Qualifications

• Bachelor’s degree in Software or Electronics related Engineering discipline or related field with 6+ years of experience.
• Experience designing and developing embedded solutions.
• Proficient in programming languages - C, C++.
• Ability to understand the electrical schematics and work closely with the electrical team.
• Experience with Real-Time Operating Systems.
• Experience writing/interfacing with device drivers
• Experience with CAN, TCP/IP, RS232 communication protocols
• Experience in Agile development processes and philosophies.
• History of driving project execution and timely delivery while ensuring a quality focus.
• Ability to work in a fast-paced, and often ambiguous environment where continuous improvement is a way of life.
• Excellent teaming skills to work with cross-functional and in a multi-site software team

Preferred Qualifications:

• Experience with In Vitro Diagnostic domain is a plus.
• Experience with OOA/OOD development methodologies and design patterns a plus.
• Understanding software development processes for a regulated environment (ISO9000/FDA) a plus.
• Experience in medical device design & development a plus.

About the Role

In this role, you'll work on design, implementation, and test for Dremio's system internals. If you want to be part of a fast-moving, fun, and accomplished team, we'd love to hear from you.

Responsibilities & ownership

• Own design, implementation, testing, and support of next-generation features related to scalability, reliability, robustness, usability, security, and performance of the product.
• Capable of working Individually and collaboratively with other engineers.
• Collaborate with support and field resources to make sure that customers are successful with Dremio

Requirements

• Fluency in Java and/or C++ with 3 to 5+ years of experience developing production level software
• Strong foundation in data structures, algorithms, multi-threaded and asynchronous patterns and their applications towards developing scalable systems
• Experience developing scalable distributed systems and deploying, scaling, and managing microservices
• Experience with  containers and kubernetes for orchestration and container management in private and public clouds (AWS, Azure, Google Cloud) a plus
• Excellent communication skills and affinity for collaboration and teamwork
• Interested in and motivated to be  part of a fast-moving startup with a fun and accomplished team
• Startup experience a plus
• B.S. or M.S in Computer Science or a related technical field or equivalent practical experience