{"id":2443479,"url":"https://alion.io/job/ic3-principal-python-software-engineer","title":"Principal Python Software Engineer","company":{"id":47671,"name":"Internet Crime Complaint Center (IC3)","domain":"ic3.gov","url":"https://alion.io/company/ic3","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":100000,"max_usd":202000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":43},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Airflow","optional":false},{"name":"Apache Kafka","optional":false},{"name":"Django","optional":false},{"name":"Python","optional":false},{"name":"Snowflake","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-05-28T00:00:00Z","employer_posted_date":"2026-05-28","last_verified_at":"2026-10-14T18:15:59Z","board_verified":true,"closed_at":null,"days_open":139,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":139},"description":"Job Description\nBuilding trusted markets - powered by our people.\nAtCboeEurope, we inspire our people to solve complex challenges together because what we do matters. We providethe financialinfrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products,Cboedeliverscutting-edgetrading, clearing and investment solutions to market participants around the world.\nWe’rebuilding inclusive ways to support professional and personal development while strengthening the trustwe’veearned as a global market leader. Our teams are empowered to share ideas, actively pursuethemand bring on a challenge. As champions of internal mobility and access to opportunity, we encourage our people to “go for it” and equip our managers with the training to coach their teams to the next level. Our Associate Resource Groups champion diversity,equityand inclusion, giving associates a safe space to network, share ideas and create opportunities.\nSoundliketheplace for you? Join us!\nCboeEurope is seeking aPrincipalPython Software Engineer. As part of a small, talented development team, you will help build and expand thedata pipeline and event streamingfunctionality of the largest equities exchange in Europe, as well as ourtrade reporting facilityand other platforms.We are firm believers in the value of testable, maintainable code, pairprogrammingand software craftsmanship; as we expand and grow our product suite, we need an experienced engineer with strong leadership skillsto help us grow.\nTo supportstrong partnership and team connection, this role follows a four day in office work model.\nLocation: London, UK\nRole Overview/ Your responsibilities will be:\nWorkingclosely with our business development and sales teams to develop innovative new products and features for our exchanges.\n\nDesigningand buildinghighly reliable, highly testable Python systems to supportCboeEurope’stradingoperations.\n\nLeadingcomplex projects including:\n\nMeet regularly with team members and management to discuss project progress and operational correctness/efficiency.\n\nManagetheinvolvement of developers acrossmultipleCboesystems and/or other developers both inEuropeand the United States.\n\nParticipate in various R&D projects toidentifyand implement promisingnew technologies.\n\nProvidingmentoring for other developers (worldwide whennecessary).\n\nLeadingothers indebugging ofcomplicated engineering and operational problems.\n\nProvidingoperational support forCboeEurope’strading systemsbyparticipatingin a production supportrota, responding to incidents in line withCboe’sIncident Management and Response processes, and contributing topost-mortem analysesand follow-up actions.\n\nThe ideal candidate has:\nExpertPython knowledge\n\nA commitment to writing testable, maintainable code.\n\nProficiencywith advanced SQL techniques.\n\nDeepLinux knowledge\n\nSolidknowledge of algorithms and data structures.\n\nDegree in Computer Science or related field preferred.\n\nHighly preferred: Experience with TDD, BDD or other testing methodologies\n\nPreferred: Familiarity with PostgreSQLand Snowflake\n\nPreferred: Familiarity withWeb Frameworks such as Django,FlaskorFastAPI\n\nPreferred: Familiarity withevent streaming platforms such as Apache Kafka\n\nPreferred:Familiarity withdata pipeline platforms such as Apache Airflow\n\nPreferred: Familiarity withJava\n\nPreferred: Experience in one or more relevant financial areas (market data, order management, algorithmic trading, financial systems integration, compliance, etc.)\n\nBenefits and Perks\nWe value the total wellbeing of our people - including health, financial,personaland social wellness. We believe standard benefits like health insurance and fair pay area givenatany organization. Still, you should know we offer:\n\nFair and competitive salary and incentive compensation packages with an upside for overachievement\n\nComprehensive private medical insurance for employees and their families which includes dental cover (taxable benefit)\n\nCboepays for employee access to a private GP service (face to face or phone call consultations) to make it easy and convenient for you to see a doctor\n\nLife andlong termillness insurance for stability and peace of mind\n\nEAP - Thisservice intends to help employees deal with personal problems that mightadversely impacttheir work performance,healthand well-being. This service includes short- term counselling and referral services for employees and their immediate family.\n\nEnhanced paid parental and adoption leave to support parents\n\nCboeoffers pensions contribution up to 7% of base salary. Youdon’thave tocontributeyourself.\n\nClassPassCorporateMembership whichprovides access to on-demand classes, livestream classes, in-person classes and wellness sessions across different fitness genres. (taxable benefit)\n\n25 days holiday per yearper holiday year for full time employees, increasing with length of service at a rate of one extra day per completed years’ service, up to a maximum of 30 days.\n\nDiscounted Employee Stock Purchase Plan\n\nEmployee referral bonus program\n\nComplimentary lunch,snacksand drinks in anyCboeoffice\n\nPaid tuitionassistanceand education opportunities\n\nGenerous charitable giving company match\n\nVolunteer opportunities to help you give back to your communities\n\nAny communication from Cboe regarding this position will only come from a Cboe recruiter who has a @cboe.com email or via LinkedIn Recruiter. Cboe does not use any otherthird party communication tools for recruiting purposes.","description_format":"text","description_chars":5504,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Health insurance"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Government","Law Enforcement","Intelligence"],"lifecycle":[{"event":"open","at":"2026-10-13T12:45:43Z"}],"visa":[],"liveness":{"score":9,"band":"cold","label":"Long shot","p_open":1,"p_active":0.316,"p_room":0.28,"age_days":139,"expected_fill_days":32,"reasons":["conf:8","win:tail","crowd:"],"computed_at":"2026-10-14T06:34:16Z"},"pay":null,"html_url":"https://alion.io/job/ic3-principal-python-software-engineer","json_url":"https://alion.io/job/ic3-principal-python-software-engineer.json","meta":{"generated_at":"2026-10-14T22:30:04Z","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":30296,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":47671},"rest":"https://alion.io/mcp/rest/get_company?id=47671"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fic3-principal-python-software-engineer"},{"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%2Fic3-principal-python-software-engineer"},{"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%2Fic3-principal-python-software-engineer"},{"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/ic3-principal-python-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fic3-principal-python-software-engineer"}]}