{"id":2704834,"url":"https://alion.io/job/susquehanna-international-group-software-developer-c-etf-experienced-hire-2","title":"Software Developer | C++ | ETF | Experienced Hire","company":{"id":4917,"name":"Susquehanna International Group","domain":"sig.com","url":"https://alion.io/company/sig","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"iCIMS","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Philadelphia, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":156000,"max_usd":290000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":3667},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Machine Learning","optional":true}],"status":"live","first_seen_at":"2026-10-16T12:16:16Z","employer_posted_date":"2026-10-16","last_verified_at":"2026-11-05T04:59:54Z","board_verified":true,"closed_at":null,"days_open":19,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":19},"description":"Overview\nSusquehanna International Group is seeking an experienced Software Developer to join a Front Office team responsible for designing and developing equities and futures trading systems.\nAs a developer on this team, you will work closely with traders and technologists to enhance our trading capabilities by providing innovative, scalable and stable systems. You will have direct impact on a successful desk and work directly with traders on proposing new ideas or gathering requirements for additional functionality, both of which are brought into production quickly through our short development cycles. Beyond development, you will have the opportunity to propose and investigate new technologies to help us stay ahead. We are looking for an experienced C++ Developer with experience in performance and optimization.\nIn this role, you will:\nExecute on ideas quickly\nCommit to innovation\nFocus on the entire technical stack with an eye for building a stable, scalable, optimized environment with minimized risk\nWork with traders and quantitative researchers to build, maintain, and improve order sending strategies\nMaintain and improve existing strategies\nExplore new technologies to find the optimal solution\nExercise strong object oriented programming skills\nWhat you can expect from us:\nReal Impact: You’ll be designing and optimizing systems that process massive amounts of data, ensuring high performance and stability. You’ll see how your contributions towards developing and supporting leading-edge software solutions make a firm-wide impact that makes us all smarter, faster, and better.\nCollaboration: Our systems engineers, network architects, technical analysts and software developers work together to create competitive edge through best-in-class technical solutions.\nGrowth: For many of our roles, we don’t expect you to have prior industry experience in proprietary trading or financial services to succeed at Susquehanna International Group. We’re looking for people who are naturally curious, relentless problem solvers, and have the desire to continuously innovate, learn, and grow.\nBenefits: Susquehanna offers a wide array of competitive employee perks & benefits.\nWhat we’re looking for\nBachelor's degree in Computer Science, Engineering, Mathematics or related discipline or its foreign equivalent\n5+ years of progressive experience developing software applications with C++\nFamiliarity with financial markets is a plus\nExcellent attention to detail and accuracy and a thorough understanding of performance optimization / latency reduction methodologies\nAbility to work closely with other software developers, traders, quants, and infrastructure teams \nAbout Susquehanna\nSusquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting-edge technology, we excel in solving complex problems and pushing boundaries together.\nWhat we do\nWe are experts in trading essentially all listed financial products and asset classes, with a focus on derivatives trading. Through market making and market taking, we handle millions of trading transactions around the world every day, providing liquidity and ensuring competitive prices for buyers and sellers. While our presence in the market is broad, our trading desks are highly specialized, allowing for a deep understanding of unique drivers of each asset class.\nIf you're a recruiting agency and want to partner with us, please reach out to . Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee.\n#LI-LM1\n#LI-Onsite","description_format":"text","description_chars":4056,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Hedge Funds & Alternative Investments"],"lifecycle":[{"event":"open","at":"2026-10-16T12:16:16Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 74 · green card filings: 31","filings_12m":74,"filings_prev_12m":70,"green_card_filings_12m":31,"median_offered_wage_usd":87500,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":38}],"liveness":{"score":43,"band":"fade","label":"Fading","p_open":1,"p_active":0.782,"p_room":0.55,"age_days":19,"expected_fill_days":14,"reasons":["conf:0","velocity","win:tail","comp:brand"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/susquehanna-international-group-software-developer-c-etf-experienced-hire-2","json_url":"https://alion.io/job/susquehanna-international-group-software-developer-c-etf-experienced-hire-2.json","meta":{"generated_at":"2026-11-05T09:08:13Z","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":11633,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":4917},"rest":"https://alion.io/mcp/rest/get_company?id=4917"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsusquehanna-international-group-software-developer-c-etf-experienced-hire-2"},{"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%2Fsusquehanna-international-group-software-developer-c-etf-experienced-hire-2"},{"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%2Fsusquehanna-international-group-software-developer-c-etf-experienced-hire-2"},{"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/susquehanna-international-group-software-developer-c-etf-experienced-hire-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsusquehanna-international-group-software-developer-c-etf-experienced-hire-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2704834}},{"tool":"search_jobs","arguments":{"company":"sig.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2704834},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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