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Location: On-site (Hyderabad) Type: Full-Time Reports To: Founder About PHNX Securities About PHNX Securities PHNX Securities is a next-generation quantitative trading firm, focused on systematic, research-driven strategies. Our approach combines deep market understanding with robust engineeringemphasizing clean execution infrastructure, rigorous backtesting, strict risk controls, and full regulatory readiness. At our core, we THINK, STRATEGIZE, BUILD, and TRADEwith discipline, precision, and long-term scalability in mind. Our MissionTo combine advanced research, automation, and disciplined risk management to create scalable, repeatable, high-conviction quantitative strategies across global markets. Role OverviewWe are seeking a highly skilled Quantitative Developer to design and build ultra-low-latency trading infrastructure that powers research, execution, and live trading. This role operates at the intersection of quantitative research, market microstructure, and high-performance systems engineering, with a strong emphasis on production-grade C++ and latency-critical execution systems. You will play a key role in building high-performance systems that directly impact trading outcomes in equities, futures, and options markets. Key ResponsibilitiesDesign and develop ultra-low-latency trading systems using modern C++ (C++17/20)Architect and enhance Order Management Systems (OMS), including:Order routingPre-trade risk checksExecution handling and fillsCollaborate closely with quantitative researchers to productionize strategiesOptimize system performance across application, kernel, and network layersProfile, benchmark, and reduce end-to-end latencyContribute to backtesting, simulation, and live deployment infrastructureEnsure system reliability, determinism, and scalability under real-time conditions Required Skills & ExperienceStrong expertise in C++ (C++17/20), including:Concurrency and multi-threadingMemory management and low-level optimizationPerformance tuning for latency-critical systemsDeep understanding of Order Management Systems (OMS) and order lifecycleExperience with FIX protocol and/or exchange-native APIsStrong knowledge of market microstructureProven experience in low-latency trading systems or market data infrastructureFamiliarity with Linux systems, including kernel tuning and networkingExperience with NSE trading system Preferred (Nice to Have)Experience with tick-level simulation and backtesting systemsExposure to time synchronization (PTP) and clock precision systemsKnowledge of NIC offloading, kernel bypass (DPDK/Solarflare, etc.)Experience working in exchange-connected production environmentsUnderstanding of strategy deployment frameworks and execution pipelines Candidate ProfileStrong systems thinker with deep attention to performance and detailPassionate about low-latency engineering and trading systemsAbility to work independently in high-impact, high-responsibility environmentsComfortable working closely with researchers and leadershipFocused, disciplined, and execution-driven mindset Why Join PHNX SecuritiesBuild from the ground up at a high-performance trading firmWork directly with the Founder on core trading infrastructureExposure to cutting-edge trading systemsHigh ownership and real impact on live trading systemsOpportunity to shape the firms technical foundation .
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