Low-Latency C++ Developer [Equity / Market Data / Trading]

LUXOFT INFORMATION TECHNOLOGY (SINGAPORE) PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Luxoft Information Technology (Singapore) PTE. LTD. is seeking a high-performance C++ engineer to design and build low-latency real-time services that process large volumes of data with microseconds-level responsiveness.

You will optimize latency and throughput, develop networking and I/O layers, and collaborate with quantitative, trading, and infrastructure teams to translate requirements into robust solutions. Production-quality code with tests and documentation is expected.

Qualifications

• Strong proficiency in modern C++ (C++17/20+).
• Hands-on experience with Market Data.
• Solid understanding of concurrency and synchronization.
• Experience building high-performance real-time/low-latency systems (networking, trading, telemetry).
• Strong CS fundamentals: data structures, algorithms, memory management, and optimization.
• Practical Linux systems programming (sockets, epoll, threads).
• Experience with profiling and performance analysis tools (perf, valgrind, flamegraphs).
• Proficiency with Git and standard build systems (CMake, Ninja).
• Excellent problem-solving and attention to detail in fast-paced environments.

Responsibilities

• Design, implement, and maintain high-performance C++ services handling high message rates and low latency workloads.
• Optimize existing components for latency, throughput, and CPU/memory efficiency.
• Develop and tune networking, messaging, and I/O layers to handle large data volumes reliably.
• Profile and debug performance issues at application, OS, and network levels.
• Collaborate with quantitative, trading, and infrastructure teams to translate requirements into robust technical solutions.
• Write clean, production-quality code with tests and documentation.
• Participate in code reviews, design discussions, and continuous improvement of engineering practices.

Skills

Modern C++

Concurrency

C++17/20+

Market Data

Algorithms & Data Structures

Memory Management

Linux Systems Programming

Profiling & Analysis

Git

Build Systems (CMake/Ninja)

Tools

Git

CMake

Ninja

Perf

Valgrind

FlameGraphs

Job description

AbouttheRole

WearelookingforaC++engineertodesignandbuildhighperformance,lowlatencyapplicationsthatprocesslargevolumesofrealtimedata.Youwillworkonsystemswheremicrosecondsandthroughputmatter,optimizingeverylayerfromalgorithmsanddatastructurestonetworkingandOSinteraction.

Responsibilities

• Design,implement,andmaintainhighperformanceC++serviceshandlinghighmessageratesandlowlatencyworkloads.
• Optimizeexistingcomponentsforlatency,throughput,andCPU/memoryefficiency.
• Developandtunenetworking,messaging,andI/Olayerstohandlelargedatavolumesreliably.
• Profileanddebugperformanceissuesatapplication,OS,andnetworklevels.
• Collaboratewithquantitative,trading,andinfrastructureteams(oranalogousbusiness/techteams)totranslaterequirementsintorobusttechnicalsolutions.
• Writeclean,productionqualitycodewithappropriatetestsanddocumentation.
• Participateincodereviews,designdiscussions,andcontinuousimprovementofengineeringpractices.

RequiredSkills

• StrongproficiencyinmodernC++(C++17/20orlater)
• Hands-onexperiencewithMarketData
• Solidunderstandingofconcurrencyandsynchronization(lockfree/lowlockpatterns,atomics,memorymodels,etc.).
• Provenexperiencebuildingperformancecritical,realtime,orlowlatencysystems(e.g.,networking,tradingsystems,telemetry,gamingengines,orsimilar).
• Strongknowledgeofcomputersciencefundamentals:datastructures,algorithms,memorymanagement,andoptimization.
• PracticalexperiencewithLinuxsystemsprogramming(sockets,epoll/select,threads,memorymanagement,CPUaffinity,etc.).
• Experienceusingprofiling,benchmarking,andperformanceanalysistools(e.g.,perf,valgrind,flamegraphs,CPU/memoryprofilers).
• Proficiencywithversioncontrol(Git)andstandardbuildsystems(CMake,Ninja,etc.).
• Excellentproblem-solvingskillsandattentiontodetail;abilitytoworkinafast-pacedenvironment.

PreferredSkills

• Experiencewithkernelbypassoruserspacenetworkingtechnologies(e.g.,DPDK,RDMA,VMA,Solarflare/OpenOnload)-helpfulbutnotrequired.
• Experienceinfinancialmarkets,marketdatadistribution,orderrouting,orexchangeconnectivity.
• Familiaritywithcommonmarketdataprotocols(e.g.,FIX,MDP,ITCH,proprietaryexchangefeeds)isaplus.
• Experiencewithmulticast,lowlatencynetworking,andclocksynchronization(e.g.,PTP).
• Exposuretohardwareawareoptimization(NUMA,cacheoptimization,vectorization/SIMD,CPUpinning).
• Experiencewithmonitoring/telemetryforhighperformancesystems(latencyhistograms,throughputmetrics,SLAs).
• Familiaritywithscriptinglanguages(e.g.,Python,Bash)fortoolingandautomation.
• KDB+
• DataAnalysiswithpython(pytorch,pandas,arrow)