Senior Real-Time Linux Developer (C / C++ / FPGA SmartNIC Integration)

An extraordinarily talented group of individuals work together every day to drive TNS' success, from both professional and personal perspectives. Come join the excellence!

Overview

We are assembling a small, agile team to develop innovative network monitoring products for real-time financial data networks. As a Senior Real-Time Linux Developer, you will work closely with hardware engineers and front-end developers to build high-performance systems that interface with custom FPGA-based SmartNICs. Your work will be central to enabling ultra-low latency, high-throughput data capture and telemetry in latency-sensitive financial environments. You will have a key role in assessing project feasibility and solution design, and serve as a subject matter expert to guide and mentor newer team members.

Responsibilities

You will work closely with hardware engineers and front-end developers to build high-performance systems that interface with custom FPGA-based SmartNICs. Your work will be central to enabling ultra-low latency, high-throughput data capture and telemetry in latency-sensitive financial environments. You will have a key role in assessing project feasibility and solution design, and serve as a subject matter expert to guide and mentor newer team members.

Required Qualifications

• 5+ years of experience in low-level Linux development using C or C++ in a real-time / embedded environment.
• Knowledge of networking fundamentals (PHY/MAC, Ethernet, vlans, UDP unicast/multicast, IGMP, TCP, PTP etc.) and linux-based IP networking.
• Experience interfacing linux with custom hardware devices.
• Proficient in high-performance programming, performance tuning and system-level debugging.

Preferred Qualifications

• Experience with AMD / Solarflare SmartNICs and high-performance network stacks, e.g. ef_vi, solarflare onload.
• Knowledge of other high-performance networking technologies at layer 1 and above.
• Knowledge of advanced time synchronization methods (e.g., PTP, White Rabbit).
• General familiarity with digital design and the FPGA development process.
• Feasibility analysis and solution design.

Soft Skills

• Strong analytical and problem-solving skills.
• Excellent communication and collaboration abilities.
• Self-directed and comfortable working in a small, fast-moving, cross-functional team.
• Ability to guide and mentor more junior team members.

Benefits

• Competitive salary and benefits.
• Hybrid working environment.
• Gain experience of very high performance real-time financial networks working for a leading global financial technology and services company.

EEO Statement

TNS is an equal opportunity employer. TNS evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, protected veteran status, disability/handicap status or any other legally protected characteristic.