{"id":1353656,"url":"https://alion.io/job/six-backend-developer-c","title":"Backend Developer (C)","company":{"id":47665,"name":"SIX","domain":"six-group.com","url":"https://alion.io/company/six","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Madrid, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":39000,"max_usd":104000,"period":"year","method":"role_seniority_country_cell","sample_n":8},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"CI/CD","optional":false},{"name":"Confluence","optional":false},{"name":"GitLab","optional":false},{"name":"Grafana","optional":false},{"name":"Java","optional":false},{"name":"Jira","optional":false},{"name":"Linux","optional":false},{"name":"MS SQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-09-04T02:00:00Z","employer_posted_date":"2026-09-04","last_verified_at":"2026-09-28T01:39:39Z","board_verified":false,"closed_at":null,"days_open":26,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":26},"description":"What sets us apart drives us ahead: between local roots and global relevance, we are a unique blend of tradition and future, of foundation and growth. We value bright minds and inspire them to grow with their ideas. Come and shape the future of finance with us.\n Backend Developer (C)\nMadrid|Working from home up to 40%| Reference8113\nYou enjoy working with internal and external interfaces and are good at working in IT systems/applications? Our goal is to develop, maintain, and give support to IT applications in the connectivity applications for Post Trading area. To achieve that, a high-level knowledge of the application landscape, dependencies and integration is very important.\nWhat You Will Do\nAct as a support technician within a Development Support team\nDevelop and maintain application code across the full development lifecycle and assure the right service\nUnderstand the SIX processes and apply them properly\nAcquire the required knowledge about the applications to which we provide support\nCollaborate with different IT teams to ensure optimal support to the requestors\nContribute with ideas or initiatives to enhance the team service\nWhat You Bring\nLinux systems administration knowledge\n3 years of hands-on experience in C programming and shell scripting\nAdditional programming skills in languages such as Python, Java, or similar are highly valued.\nDB technology understanding (MSSQL, Postgre, etc.)\nMicroservices and containerization knowledge\nBackground in IT corporate tools (Jira/Confluence, GIT, VS Code, etc.)\nExperience and knowledge of CI/CD (GitLab, Artifactory, Ansible, Grafana, Elastic, etc)\nHigh team-working spirit\nLanguages: Spanish (native/proficiency) and fluent in English (verbal and written)\nIf you have any questions, check out our FAQ page or call Yuliya Stoykoat +34 917095993.\nFor this vacancy we only accept direct applications.\nDiversity is important to us. Therefore, we are looking to receiving applications regardless of any personal background.","description_format":"text","description_chars":1993,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Spanish","level":"Proficiency (C2)","optional":false},{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Payment Processing & Gateways","Stock Exchanges & Market Infrastructure","Financial Data & Market Intelligence"],"lifecycle":[{"event":"open","at":"2026-09-27T20:50:26Z"}],"liveness":{"score":57,"band":"ok","label":"Likely open","p_open":1,"p_active":0.754,"p_room":0.75,"age_days":25,"expected_fill_days":33,"reasons":["conf:28","velocity","win:late"],"computed_at":"2026-09-29T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/six-backend-developer-c","json_url":"https://alion.io/job/six-backend-developer-c.json","meta":{"generated_at":"2026-09-30T03:33:07Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2543,"day_limit":5000,"remaining_today":2457,"minute_limit":60,"resets_at":"2026-10-01T00:00:00Z"}}}