{"id":2216650,"url":"https://alion.io/job/testtriangle-c-developer","title":"C++ developer","company":{"id":4380438,"name":"Test Triangle","domain":"testtriangle.com","url":"https://alion.io/company/testtriangle","size_band":null,"is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Zoho Recruit","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":90000,"max_usd":177000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":114},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C#","optional":false},{"name":"C++","optional":false},{"name":"PowerShell","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"WebSockets","optional":false}],"status":"live","first_seen_at":"2026-10-10T08:37:28Z","employer_posted_date":"2026-10-10","last_verified_at":"2026-10-12T03:42:56Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"As a Senior C++ Engineer, you will be a member of a small, high performing team responsible for global derivatives algorithmic trading platform. Working closely with technologists, quants and traders to develop our in-house trading technology and optimise it to achieve market-leading performance and reliability.\nOur proprietary trading platform includes everything from venue connectivity (feed handlers and ordering gateways) to trading engines to shared platforms that enable us to work quickly and efficiently - we are proud of our open and collaborative culture, so you'll have plenty of opportunity to find what fits you best.\nThe main activities include:\nExchange Connectivity\nWrite software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket or HTTP requests\nEnsure quality of software based on a set of testing suites, which you are expected to use, maintain and extend\nOptimize exchange communication through kernel bypass, optimizing TLS or the connection handling to an exchange\nResearch exchange behavior in detail to align our behavior to that of an exchange\nImplement these solutions using the provided exchange SDKs in different languages such as C++, Rust, Python, Typescript\nTrading Strategies\nImplement trading algorithms based on requirements provided by traders and quants\nAcquire and develop the necessary trading knowledge to successfully translate the requirements into actual software implementation\nContinuously improve the stability, reliability, and performance of the trading engine\nEnhance monitoring and observability in collaboration with the Trading Operations team\nInvestigate and resolve production issues such as crashes, unexpected business logic behavior, and performance bottlenecks\nPrepare for releases and deployments of new trading engine versions\nKey Skills and Experience required\n5+ years post-graduation professional C++ software development experience within the Financial industry\nSolid understanding of parallel, asynchronous, and multithreaded programming to build distributed systems\nGood knowledge of algorithms and data structures\nStrong analytical and problem-solving skills, with the ability to analyze complex data sets and propose innovative solutions.\nUnderstanding of trading lifecycle, including order capture & execution, allocation workflow, settlement, and compliance requirements\nMust have strong technical skills in scripting, Python, PowerShell, C#, SQL or other programming languages\nSolid track record in application deployment best practices\nProactive system monitoring and troubleshooting, owning reliability improvements and ensuring their successful delivery\nSoft Skills:\nExcellent communication skills to interact with traders, developers, and stakeholders.\nThrives in high-pressure situations while working alongside traders, developers and other engineering teams\nProactive, self-motivated, and flexible with a positive attitude\nAbility to work under demanding deadlines with changing priorities in a trading room environment\nAmbition to solve open-ended problems using analytical methods\nMandatory Skills: C++ Application Programming .","description_format":"text","description_chars":3219,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-10T08:37:28Z"}],"visa":[],"liveness":{"score":52,"band":"ok","label":"Likely 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