Quant Developer - Low Latency C++

BestEx Research; Bengaluru; On-site; INR 1,800,000 - 3,200,000; Full time

Job summary

BestEx Research in Bengaluru is seeking talented engineers to design and build end-to-end algorithmic execution systems. You will work on market microstructure, trade mechanics, and real-time analytics, contributing to a low-latency FPGA-free stack used by hedge funds and asset managers.

You will collaborate with traders, researchers, and senior engineers across offices in the U.S., Singapore, and Europe, with opportunities for international exposure and relocation based on performance and

Qualifications

• Bachelor's or Master's in CS/Math/Engineering from a top-tier program.
• 2+ years of hands-on C++ experience (C++14/17/20) in performance-sensitive apps.
• Strong fundamentals in data structures, OS, networks, and concurrency.
• Python fluency for data analysis and prototyping.
• Experience with large-scale real-time systems; trading experience is a plus.
• Demonstrated passion for learning markets, systems, and modeling.

Responsibilities

• Architect and implement execution algorithms across global markets.
• Develop exchange simulators and backtesting frameworks.
• Build Smart Order Routing across lit and dark venues.
• Model market impact, price prediction, and volume forecasting.
• Optimize high-performance trading systems for throughput and latency.
• Contribute core infra to support new asset classes and markets.
• Collaborate with global quants, traders, and senior engineers.

Skills

C++

Python

Data structures

Operating systems

Networking

Concurrency

Trading experience

Learning mindset

Education

Bachelor's or Master's in CS/Math/Engineering (IIT/NIT/BITS preferred)

Tools

TCP/IP

Multi-threading

Latency optimization

FIX engines

Job description

About BestEx Research

BestEx Research is a financial technology and research firm specializing in building sophisticated execution algorithms and transaction cost modeling tools servicing multiple asset classes. The firm provides high-performance algorithmic execution services to hedge funds, CTAs, asset managers, and banks through a traditional electronic broker and in a broker-neutral Software as a Service (SaaS) model.

Its cloud-based platform, Algo Management System (AMS), is the first end-to-end algorithmic trading solution for equities and futures that delivers an entire ecosystem around execution algorithms, including transaction cost analysis (TCA), an algorithm customization tool called Strategy Studio, a trading dashboard, and pre-trade analytics in a single platform. The platform is currently live for U.S., Europe, and Canadian equities and global futures trading.

BestEx Research is disrupting a $100 billion industry by challenging the status quo of stale, black-box solutions from banks and offering next-generation execution algorithms that combine performance improvement with transparency and customization. BestEx Research uses leading-edge technology to support its low-latency, highly scalable research and trading systems, with its backend in C++, research libraries in C++/Python and R, and web-based technologies for delivering its front-end platforms.

BestEx Research's mission is to become the leader in automation and measurement of execution across asset classes globally and significantly reduce transaction costs for our clients.

Visit for more information about our mission, products, research, and services.

Why Join Us?

BestEx Research's Bangalore office is not an "offshore center." It's a core engineering and research hub—working on the exact same problems and projects as our U.S. team. You'll be part of the global brain trust, solving some of the hardest problems in trading, systems, and data science.

What You'll Love

• Zero bureaucracy, zero silos—engineers directly collaborate with traders, researchers, and the CEO
• Direct ownership and end-to-end visibility on production systems
• Daily opportunity to learn from pioneers in HFT, low-latency systems, and algo trading
• A high-trust environment where performance speaks louder than hierarchy
• Competitive compensation in India, including equity and cash bonuses
• 5-week structured training program

Your Role: Build What Most Engineers Never Get to Touch

• Market microstructure and trading mechanics
• Algorithmic execution and strategy design
• Exchange simulators and performance testing
• Market data systems and real-time analytics
• Hands-on exercises using production research data
• Continuous professional development, with refresher courses, advanced sessions, and on-demand training tailored to your growth
• Global exposure: Opportunities to collaborate with, visit, or relocate to our U.S., Singapore, or London offices, based on performance and business needs

You’ll be part of a lean, focused team building ultra-low-latency trading systems, real-time exchange simulators, execution algorithms, and alpha forecasting models. Our engineers own the stack—from C++ nanosecond-sensitive infrastructure to Python-based research platforms.

This role is ideal for someone who thrives at the intersection of research and engineering—comfortable building systems, testing hypotheses, and working directly with data that moves markets.

What You'll Work On

• Architect and implement execution algorithms across global markets
• Exchange simulators and tick-level backtesting frameworks
• Smart Order Routing systems across lit and dark venues
• Models for market impact, price prediction, and volume forecasting
• High-performance trading systems optimized for throughput and latency
• Core infrastructure to support new asset classes and global markets
• Collaborate closely with global quants, traders, and senior engineers
• Analyze system performance across app, OS, and hardware layers

Requirements

You Should Have

• Bachelor's or Master's from a top-tier CS, Math, or Engineering program (IIT/NIT/BITS preferred but not required)
• 2+ years hands-on C++ experience (C++14/17/20) in performance-sensitive applications
• Strong fundamentals in data structures, OS, networks, and concurrency
• Python fluency for data analysis and prototyping (preferred but not required)
• Experience with large-scale, real-time systems (trading experience is a plus but not mandatory)
• Passion for learning—markets, systems, and modeling

Bonus Points For

• Deep experience with TCP/IP, multi-threading, and latency optimization
• Prior work on trading platforms, FIX engines, or exchange protocols
• SQL optimization and experience with research or market data pipelines
• Contributions to open-source C++/Python performance tools

Why This Role Is Rare

• Exposure to real-time trading systems live in global markets
• Direct mentorship from senior algorithmic trading and software engineering veterans
• Blend of research, systems design, and algorithm development
• Equity and cash compensation
• Zero red tape, no outsourcing mentality