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

C_087 Transaction Network Services Communications India Private Limited; Polska; Hybrid; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Hybrid working environment

Competitive salary and benefits

Job summary

TNS in Poland is seeking a Senior Real-Time Linux Developer to help build high-performance network monitoring products for ultra-low-latency financial data networks. You will collaborate with hardware engineers and front-end developers to interface Linux with custom FPGA-based SmartNICs for fast data capture and telemetry.

The role includes feasibility analysis, solution design, and mentoring junior engineers within a small, agile team, and offers a hybrid working environment and competitive

Qualifications

• 5+ years in low-level Linux development for real-time/embedded systems.
• Strong knowledge of PHY/MAC, Ethernet, VLANs, UDP/TCP, IGMP, and PTP.
• Experience interfacing Linux with custom hardware devices.
• Proficient in high-performance programming, tuning, and debugging.

Responsibilities

• Develop network monitoring products for real-time financial networks.
• Collaborate with hardware and front-end teams to deliver high-throughput systems.
• Assess feasibility and design solutions; mentor junior engineers.
• Support optimization for ultra-low latency and precise time synchronization.

Skills

Real-Time Linux

C/C++

Networking fundamentals

Linux hardware interfacing

Performance tuning

Tools

ef_vi

Solarflare Onload

FPGA basics

Linux kernel

Job description

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 you will be the subject matter expert, helping to guide and mentor newer team members.

Responsibilities

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.

Qualifications

If you are passionate about technology, love personal growth and opportunity, come see what TNS is all about!

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.