Software Developer - Low Latency C++

BestEx Research Group; Bengaluru; On-site; INR 2,500,000 - 4,000,000; Full time

Benefits offered by this job

Equity

Cash bonuses

Job summary

BestEx Research in Bengaluru builds ultra-low-latency trading systems and alpha forecasting models. You’ll own stack from C++ nanosecond-sensitive infrastructure to Python-based research platforms, collaborating with quants, traders, and engineers.

We seek proactive engineers with 3+ years in C++, strong TCP/IP and multithreading, and a passion for performance. This role blends research with engineering in a fast-growing fintech environment, with opportunities for growth and global collaboration.

Qualifications

• Bachelor or Master in CS/Engineering (IIT/NIT/BITS preferred but not required).
• 3+ years of software development experience with C++.
• Expert level knowledge of C++ and TCP/IP.
• Excellent problem solving and analytical skills and strong communication.

Responsibilities

• Design and develop system architecture for core trading systems and algorithms.
• Build high-performance execution algorithms and exchange simulators.
• Enhance existing systems for scalability and reliability.
• Collaborate with a global team of quants, traders, and senior engineers.
• Analyze and optimize performance across application, OS, and hardware layers using C++17.

Skills

C++

Multithreading

Low-latency

Performance optimization

Python

Education

Bachelor or Master in CS/Engineering

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.

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 will 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 management team.
• Direct ownership of subsystems.
• 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.
• Ability to transition between various teams and projects, whether related to trading systems, algorithmic trading or system tooling.
• 5-week structured training program:
  • 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.

Your Role: Build What Most Engineers Never Get to Touch

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

Designing and developing system architecture

• Core trading systems and algorithmic trading frameworks
• High-performance execution algorithms for global markets
• Exchange simulators and tick‑level backtesting frameworks
• Market data adaptors and exchange connectivity adaptors

Building from scratch

• Trading systems for new asset classes and execution algorithms
• Performance optimizations for low-latency, high‑throughput systems

Enhancing existing systems

• Add support for new features and improve scalability and reliability

Collaborating closely with

• A global team of quants, traders, and senior engineers to design cutting‑edge solutions

Analyzing and optimizing system performance

• Across application, OS, and hardware layers to achieve industry‑leading performance
• Work primarily with C++17 in a high-impact, low-bureaucracy environment

You Should Have

• Graduation with a Bachelor’s or Master’s from a top‑tier CS or Engineering program (IIT/NIT/BITS preferred but not required)
• At least 3+ years software development experience with C++
• Expert‑level knowledge of C++ and excellent software design skills
• Expert‑level knowledge of TCP/IP and multithreading
• Excellent problem solving and analytical skills
• Excellent communication skills and ability to articulate ideas
• An attitude of constant curiosity and growth, as well as the ability and desire to mentor others
• While domain experience is a plus, we welcome strong engineers from other industries

Bonus Points For

• Database optimization and experience with research or market data pipelines
• Prior work on trading platforms, FIX engines, or exchange protocols
• Contributions to open-source C++/Python performance tools, ability to work with large datasets
• Prior experience developing trading systems or execution algorithms
• Knowledge of relational databases, database optimizations, and SQL.
• Experience with Python/R