{"id":204054,"url":"https://alion.io/job/blocktech-junior-software-engineer-core-tech-pythonrust","title":"Junior Software Engineer | Core Tech | Python/Rust","company":{"id":103220,"name":"BlockTech","domain":"blocktech.agency","url":"https://alion.io/company/blocktech","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"C","score":68,"open_postings":17,"ghost_share":0.529,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Amsterdam, Netherlands"],"countries":["NL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":39000,"max_usd":86000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":18},"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Grafana","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"Self-Healing","optional":false}],"status":"live","first_seen_at":"2026-06-26T07:31:41Z","employer_posted_date":"2026-06-26","last_verified_at":"2026-11-01T11:51:27Z","board_verified":true,"closed_at":null,"days_open":128,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":127},"description":"About BlockTech\nBlockTech is a fast-paced algorithmic trading firm facilitating global cryptocurrency derivatives and spot trading while expanding into new markets. As we continue to grow rapidly, we are looking for a Software Engineer to join our Core team amid our exciting scale-up phase!\nThe role\nIn this role, you will work on the systems that keep our trading operation accurate at every level, positions, PnL, instruments, hedging, and the data flowing between them. Across exchanges and asset classes, your work determines whether the numbers our traders and risk team rely on are correct.\nOwn the books. Maintain and evolve our position, trade, and PnL systems so they remain accurate across every venue we operate on.\n\nBuild the platform that supports trading. Design services that handle real-time exchange flow with the throughput and reliability on which our quoting and hedging depend.\n\nOwn the data flows. Operate the public and private data pipelines that bring market prices, account state, and trade events into our systems in real time.\n\nIntegrate new venues. Deliver exchange and prime-broker integrations end-to-end, protocol, account model, settlement, reconciliation, and surveillance.\n\nModel the instrument universe. Own the systems that describe every tradable instrument we trade, lifecycle, expiry, margin, RFQs, fast-path quoting, where both correctness and latency matter.\n\nDevelop self-healing systems. Build the detection and repair flows that identify position discrepancies and correct them automatically.\n\nBuild hedging infrastructure. Design and refine the gamma and delta hedging systems that our trading strategies depend on.\n\nDeliver reporting. Provide the data that internal stakeholders and regulators require, PnL breakdowns, trade surveillance, treasury accounting, and compliance.\n\nWhat we're looking for\n1+ years of commercial working experience as a Software Engineer. We are looking for an engineer with breadth: someone comfortable moving between a Rust service, a Python data pipeline, and a complex production issue, and choosing the right tool for each.\n\nFamiliarity with Grafana & PostgreSQL\n\nA critical mind that follows things until completion\n\nThe ability to confidently work on completely new components\n\nA high level of responsibility and ownership\n\nGood written and verbal communication skills in English\n\nWhat's in it for you?\nA full-time position in a relaxed and modern office in Amsterdam\n\nCompetitive compensation consisting of a base salary combined with a very attractive bonus plan based on individual and company performance\n\nOutstanding performance is rewarded with the opportunity to buy into the trading fund\n\nPension plan, company laptop, and reimbursement of your internet costs at home\n\nAn extensive in-house training program and an annual learning & development budget\n\nThe opportunity to work at the forefront of automated trading using state-of-the-art technology, in an environment that embraces AI to both accelerate productivity and advance our systems and models\n\nGym membership reimbursement and the opportunity to engage in various sports during working hours, including kickboxing, CrossFit, fitness, and soccer\n\nRegular social events, including weekly Friday drinks, monthly outings, quarterly sports competitions and bi-annual trips abroad\n\nDaily breakfast and warm lunch. Additionally, snacks and drinks are provided throughout the day\n\nFor internationals: All-in relocation package and Dutch classes\n\nOur culture\nAt our core, we are a team of passionate trading and tech enthusiasts committed to revolutionizing trading through automation. Our collaborative approach ensures that everyone contributes to achieving our ambitious goals.\nIn this role, you will be both challenged and stretched, with ample opportunities for growth and development, both within and beyond your main responsibilities.\nWe invest in our people by offering competitive compensation and benefits, fostering innovation, and celebrating success. Our commitment to personal development transcends traditional norms; we provide an equal playing field, promote reverse leadership, and offer boundless growth opportunities for all our employees.\nJoin us to unlock your potential and drive innovation in the exciting world of algorithmic trading.","description_format":"text","description_chars":4299,"description_truncated":false,"requirements":{"experience_years_min":1,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Growth opportunities","Gym membership"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Blockchain & Crypto","Online Brokerage & Trading Platforms"],"lifecycle":[{"event":"open","at":"2026-09-05T06:47:16Z"}],"visa":[],"liveness":{"score":4,"band":"cold","label":"Long shot","p_open":1,"p_active":0.128,"p_room":0.28,"age_days":127,"expected_fill_days":21,"reasons":["conf:2","stale_co","ghost","win:tail","crowd:junior"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/blocktech-junior-software-engineer-core-tech-pythonrust","json_url":"https://alion.io/job/blocktech-junior-software-engineer-core-tech-pythonrust.json","meta":{"generated_at":"2026-11-01T12:41:50Z","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":19555,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":103220},"rest":"https://alion.io/mcp/rest/get_company?id=103220"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fblocktech-junior-software-engineer-core-tech-pythonrust"},{"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%2Fblocktech-junior-software-engineer-core-tech-pythonrust"},{"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%2Fblocktech-junior-software-engineer-core-tech-pythonrust"},{"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/blocktech-junior-software-engineer-core-tech-pythonrust\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fblocktech-junior-software-engineer-core-tech-pythonrust"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":204054}},{"tool":"search_jobs","arguments":{"company":"blocktech.agency","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":204054},"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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