{"id":2714655,"url":"https://alion.io/job/flatexdegiro-senior-c-developer","title":"Senior C++ Developer","company":{"id":2115896,"name":"flatexDEGIRO","domain":"flatexdegiro.com","url":"https://alion.io/company/flatexdegiro","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":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sofia, Bulgaria"],"countries":["BG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":42000,"max_usd":78000,"period":"year","method":"role_seniority_country_cell","sample_n":8},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GitLab","optional":false},{"name":"Jenkins","optional":false},{"name":"Kubernetes","optional":false},{"name":"Python","optional":false},{"name":"Redis","optional":false},{"name":"C++","optional":true}],"status":"live","first_seen_at":"2026-10-16T13:45:53Z","employer_posted_date":"2026-10-16","last_verified_at":"2026-10-17T08:36:33Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Who we are\nflatexDEGIRO SE operates the leading and fastest growing online brokerage platform in Europe. Based on modern, in-house state-of-the-art technology, customers of the flatex and DEGIRO brands are offered a wide range of independent products with execution on top TIER 1 exchanges. The technological edge, high efficiency and strong economies of scale enable us to continuously improve our service offering for clients and to set leading standards in terms of product, price and platform quality.\nWith more than 3,5 million customer accounts and more than 75 million securities transactions processed in 2025, flatexDEGIRO is the largest retail online broker in Europe. In times of bank consolidation, growing digitalization and the immanent need of millions of Europeans to take their financial future into their own hands, flatexDEGIRO is ideally positioned for further profitable growth.\nWant to know what it’s like to work for flatexDEGIRO?\nCheck out our Instagram @lifeatflatexdegiro and meet the great people that makes us who we are! Do you already see yourself as part of this team? Apply!\nWe’re looking for a Senior C++ Developer who thrives in high-performance backend environments, enjoys building clean and scalable architectures, and wants to influence how quality and reliability are built into mission-critical trading systems from day one. You’ll work in a modern environment where AI-supported tools are encouraged to boost productivity, code quality, and analysis. If you enjoy owning the performance and reliability of systems end-to-end and shaping how teams build and test software, this role is for you.\nYou bring us these skills:\nMinimum 4 years C++ development experience;\nAt least Bachelor’s degree in Computer Science or similar;\nPython for test automation;Kafka/Redis for communicating with scalable components;\nDocker/k8s/helm, anything for a modern CI/CD environment (Jenkins/GitLab);\nGrowth mindset, there is always something to be improved, and that's fine;\nThrive in an environment that leverages best in class AI tooling to work more efficiently without sacrificing quality of outputs;\nFluent in English. \nThis is what you’ll do:\nProcess thousands of incoming trades in a fraction of a second;\nService talks directly to stock exchanges, and cleverly assesses each transaction;\nMake stuff that is used by tons of people around the world;\nLove showing what you and your squad have created every sprint;\nCoach your back-end buddies in being better, stronger, faster;\nImprove coding standards, developer tools, and everything else a great developer needs.\nInterested? This is what we offer you:\nPromise of a good work-life balance\n30 days paid leave\nPersonal and professional development with access to relevant courses\nOpportunities for career development\nAdditional health insurance Luxe package (covering children under 18, dental and vision care)\nBest Doctors’ health insurance providing access to the best medical treatment worldwide*\nA challenging full-time job in an international and fast-growing company;\nA competitive salary\nFood vouchers (102 EUR net)\nThe opportunity to participate in a new, enthusiastic team of likeminded professionals\n*The insurance is available for individuals who have obtained permanent resident status in Bulgaria and have resided in the country for more than 183 days within the last 12 months\nTo make your life easier\nYou’ll enjoy the flexibility of our hybrid working model, which allows you to work both from home and from the office, with at least 50% of the time spent onsite. We truly value time together in the office - it’s a great opportunity to connect, collaborate, and exchange ideas with colleagues.\nWhen you’re in, you can enjoy fresh fruit, good coffee, drinks, and snacks every day. Our modern Office X workspace is conveniently located in the southern part of Sofia with excellent transport connections, offering a comfortable and inspiring environment designed for collaboration and productivity.\nTo make working from home comfortable we offer a 25 EUR net internet allowance, provide a company laptop and many options to make your work@home comfortable, such as a chair, screen and headphones. And last but not least: a fully covered Sports card we provide is an easy way to get into shape!\nWant to invite your friends to work for us as well? A generous referral bonus will be yours if they get hired, so spread the word once you start.\nAll qualified applicants will receive consideration for employment without regard to ethnicity, color, religion, age, sex, national origin, disability, sexual orientation, gender identity/expression, or any other legally protected status. flatexDEGIRO is an Equal Opportunity Employer.\nflatexDEGIRO Sofia Branch\nPetar Patev\nCorporate Recruiter","description_format":"text","description_chars":4774,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Health insurance","Hybrid work","Professional development"],"hiring_locations":[{"name":"Bulgaria","iso":"BG","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Online Brokerage & Trading Platforms"],"lifecycle":[{"event":"open","at":"2026-10-16T13:45:53Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":25,"reasons":["conf:1","velocity","win:early"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/flatexdegiro-senior-c-developer","json_url":"https://alion.io/job/flatexdegiro-senior-c-developer.json","meta":{"generated_at":"2026-10-17T09:41:02Z","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":12725,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":2115896},"rest":"https://alion.io/mcp/rest/get_company?id=2115896"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fflatexdegiro-senior-c-developer"},{"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%2Fflatexdegiro-senior-c-developer"},{"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%2Fflatexdegiro-senior-c-developer"},{"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/flatexdegiro-senior-c-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fflatexdegiro-senior-c-developer"}]}