{"id":1176128,"url":"https://alion.io/job/okx-seniorstaff-software-engineer-c-trading-service","title":"Senior/Staff Software Engineer, C++ - Trading Service","company":{"id":76,"name":"OKX","domain":"okx.com","url":"https://alion.io/company/okx","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":88,"open_postings":311,"ghost_share":0.116,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":84,"computed_at":"2026-10-21T05:46:15Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Singapore"],"countries":["SG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":94000,"max_usd":196000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":15},"experience_years_min":5,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Linux","optional":false},{"name":"Go","optional":true},{"name":"Java","optional":true},{"name":"Python","optional":true},{"name":"Rust","optional":true}],"status":"live","first_seen_at":"2026-09-24T11:47:40Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-21T23:47:52Z","board_verified":true,"closed_at":null,"days_open":27,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":26},"description":"OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa\nAbout OKX\nAt OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.\nAbout the Opportunity\nThe Trading Systems team builds the mission-critical order, execution, position, and risk infrastructure that powers OKX’s global trading platform. We operate at the intersection of high performance, correctness, resilience, and scale-where every design decision matters.\nWe are seeking a Senior C++ Software Engineer to lead the design and evolution of our trading counter and core trading systems. This role is for an engineer who combines deep systems expertise with strong ownership: someone who investigates root causes, raises the quality bar across the engineering lifecycle, and turns individual learning into reusable team capability.\nWhat You’ll Be Doing\nLead the architecture, design, and development of complex, high-performance C++ trading systems.\nDesign reliable distributed systems, including consistency, fault tolerance, disaster recovery, and resilience strategies across system boundaries.\nOwn work end to end-from technical proposals and design reviews through framework refactoring, implementation, deployment, production debugging, replay, and validation.\nSolve low-level systems challenges involving networking, protocols, concurrency, memory management, performance, and operating-system-level behaviour.\nDrive architectural improvements by identifying systemic issues and anti-patterns, such as overly coupled or “God Class” designs, and redesigning components with clear responsibilities.\nBuild proactive quality safeguards, including automated testing, failure-injection scenarios, stability validation, monitoring, and replay-based verification.\nDesign controlled experiments to validate architectural assumptions and diagnose complex production issues beyond surface-level symptoms.\nWork effectively across heterogeneous technology stacks, making sound engineering decisions at language, service, and platform boundaries.\nIndependently explore and apply AI-assisted engineering practices across code understanding, solution design, cross-review, incident analysis, test validation, and knowledge capture.\nRaise engineering standards through thoughtful code reviews, technical discussions, and continuous improvements to development practices.\nMentor engineers and share practical knowledge through documentation, playbooks, technical sessions, and reusable frameworks.\nWhat We Look For In You\nBachelor’s degree or above in Computer Science, Software Engineering, or a related STEM field; equivalent practical experience is also valued.\n5+ years of hands-on software engineering experience, with substantial experience building production C++ systems.\nStrong experience designing and evolving complex systems, with a clear understanding of architectural trade-offs.\nProven knowledge of concurrency, multithreading, network programming, and performance optimisation in Linux-based environments.\nHands-on experience with distributed consistency, high availability, fault tolerance, disaster recovery, or other system-level reliability designs.\nStrong understanding of computer systems fundamentals, including networking protocols, operating systems, memory, storage, and runtime behaviour.\nA track record of taking ownership proactively, from defining the problem to delivering and validating a robust solution.\nExceptional debugging and analytical ability, with a habit of investigating why issues occur-not simply applying short-term fixes.\nExperience using automated tests, simulation, replay, or comparative experiments to validate system behaviour and reliability.\nClear communication skills and a collaborative mindset; able to turn experience into documentation, standards, and practices that help the whole team.\nNice to Haves\nExperience with exchange, brokerage, trading counter, order management, execution, market data, or other low-latency financial systems.\nExperience with event-driven architectures, messaging systems, or high-throughput distributed platforms.\nFamiliarity with Rust, Java, Go, Python, or other languages used in multi-language production environments.\nPractical experience applying AI tools to improve software engineering workflows and code quality.\nExperience working with globally distributed, cross-functional engineering teams.\nPerks & Benefits\nCompetitive total compensation package\n\nL&D programs and Education subsidy for employees' growth and development\n\nVarious team building programs and company events\n\nWellness and meal allowances\n\nComprehensive healthcare schemes for employees and dependants\n\nMore that we love to tell you along the process!\n\nNotice:\nAll official OKXvacancies are published on this website.While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website.\nInformation collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX's Candidate Privacy Notice.","description_format":"text","description_chars":5960,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Company events"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain & Crypto","Cryptocurrencies","Crypto Exchanges","Crypto Wallets"],"lifecycle":[{"event":"open","at":"2026-09-24T11:53:00Z"}],"visa":[],"liveness":{"score":88,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.881,"p_room":1,"age_days":26,"expected_fill_days":84,"reasons":["conf:0","velocity","win:early","comp:brand"],"computed_at":"2026-10-21T05:46:15Z"},"pay":null,"html_url":"https://alion.io/job/okx-seniorstaff-software-engineer-c-trading-service","json_url":"https://alion.io/job/okx-seniorstaff-software-engineer-c-trading-service.json","meta":{"generated_at":"2026-10-22T00:04:34Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":124,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":76},"rest":"https://alion.io/mcp/rest/get_company?id=76"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fokx-seniorstaff-software-engineer-c-trading-service"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fokx-seniorstaff-software-engineer-c-trading-service"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fokx-seniorstaff-software-engineer-c-trading-service"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/okx-seniorstaff-software-engineer-c-trading-service\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fokx-seniorstaff-software-engineer-c-trading-service"}]}