{"id":1286795,"url":"https://alion.io/job/tns-jr-cc-developer","title":"Jr C/C++ Developer","company":{"id":1766333,"name":"TNS","domain":"tnsi.com","url":"https://alion.io/company/tnsi","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":85,"open_postings":13,"ghost_share":0,"stale_share":0.615,"repost_share":0,"time_to_fill_p50_days":51,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Budapest, Hungary"],"countries":["HU"],"hiring_countries":["HU"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Linux","optional":false},{"name":"Wireshark","optional":false}],"status":"live","first_seen_at":"2026-06-23T00:00:00Z","employer_posted_date":"2026-06-23","last_verified_at":"2026-10-24T01:04:08Z","board_verified":false,"closed_at":null,"days_open":125,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":125},"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!\nOverview\nWaypoint Trading Solutions powers global trading with ultra-low latency connectivity, the world’s largest financial extranet, and fully managed market data solutions. We deliver the speed and reliability that trading firms depend on to execute across exchanges worldwide. We are looking for a motivated Junior C/C++ engineer to join our team and work closely with a Senior Engineer. In this role, you will support the development and enhancement of tools and infrastructure that keep our ultra-low latency Ethernet network performing at the highest level. You will gain hands-on experience with core networking development while helping build monitoring, diagnostics, and performance tools for our production trading environment.Responsibilities\nYou will work alongside a Senior Engineer to develop high-performance networking components using Solarflare/Xilinx technology and contribute to the internal tools needed to monitor, analyze, and optimize our ultra-low latency network. The role provides an excellent opportunity to learn kernel-level development, user-space acceleration, systems programming, and tool creation that directly supports our trading platform’s reliability and speed.\nQualifications\nKey Responsibilities\nSupport the design, implementation, and optimization of Ethernet networking features in C/C++ for both kernel and user space.\nAssist with Linux kernel driver development and networking subsystems under the guidance of a Senior Engineer.\nLearn and apply Solarflare/Xilinx technologies including ef_vi, OpenOnload, TCPDirect, and related kernel-bypass frameworks.\nHelp build and improve internal tools for monitoring, debugging, and visualizing low-latency network performance (latency, jitter, packet loss, throughput, etc.).\nContribute to diagnostics and performance analysis utilities used by engineering and operations teams.\nTroubleshoot and tune networking issues at the hardware, driver, and application layers with senior support.\nCollaborate on hardware integration, performance testing, and new feature development.\nRequired QualificationsSolid proficiency in C and C++.\nUnderstanding of Ethernet networking and basic packet processing concepts.\nSome experience with Linux systems and development (kernel/driver experience is a strong plus but not required).\nInterest in building monitoring, diagnostic, or performance tools.\nFamiliarity with common debugging tools (gdb, perf, Wireshark, etc.).\nStrong problem-solving skills and eagerness to learn in a fast-paced environment.\nAbility to work independently on tasks while collaborating closely with a Senior Engineer in a remote setting.\nNice-to-HavesExposure to Solarflare/Xilinx adapters, ef_vi, Onload, or similar user-space networking technologies.\nExperience with high-speed Ethernet (10G+) or low-latency system tuning.\nBackground in performance monitoring, telemetry, or visualization tools.\nAny contributions to open-source projects (Linux kernel or networking).\nInterest in financial markets or real-time, high-performance systems.\nExposure to DPDK, XDP, or related frameworks.\nWhat We OfferFully remote position with flexible hours.\nOpportunity to work on mission-critical, ultra-low latency trading infrastructure alongside an experienced Senior Engineer.\nStrong mentorship and rapid learning opportunities in high-performance networking and systems programming.\nCollaborative, performance-driven engineering culture.\nIf you are passionate about technology, love personal growth and opportunity, come see what TNS is all about!\nTNS is an equal opportunity employer. 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