{"id":191654,"url":"https://alion.io/job/kasada-senior-software-engineer","title":"Senior Software Engineer","company":{"id":49896,"name":"Kasada","domain":"kasada.io","url":"https://alion.io/company/kasada","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sydney, Australia"],"countries":["AU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":82000,"max_usd":177000,"period":"year","method":"role_seniority_country_cell","sample_n":9},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon EC2","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"ClickHouse","optional":false},{"name":"GitHub","optional":false},{"name":"Kubernetes","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Redis","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-06-30T06:05:25Z","employer_posted_date":"2026-06-30","last_verified_at":"2026-11-01T23:49:43Z","board_verified":true,"closed_at":null,"days_open":124,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":124},"description":"About the role\nKasada has an exciting opportunity to join our Account Intelligence team, the team responsible for defending our customers against fraud and malicious automation. Attackers use ever changing toolsets to launch highly costly attacks on our customers, and we handle an immense volume of traffic (think a billion requests per day) safeguarding renowned brands and protecting people online. Every millisecond counts!\nAs a Senior Software Engineer on the team, you will help shape our technical direction, architecting greenfield systems at the core of how we tell legitimate users apart from adversaries. You won't be confined to traditional three-tier applications. You will lead design discussions, work closely with our team lead on where the product goes next, and build the data-intensive systems that power our detection capabilities. This role involves close collaboration with engineering, research, and product teams across Kasada.\nWhat you will be doing\nShape the architecture: Lead the design of greenfield systems within Account Intelligence, from data modelling through to production, and help set the technical direction for the team.\n\nDesign and implement features on our market-leading product, staying hands-on across the stack with a focus on backend and data-intensive systems.\n\nLead design discussions: Drive architecture conversations within the team and across engineering, making your reasoning clear and bringing others along.\n\nBuild low-latency, massively scalable solutions that cater for millions of requests per minute.\n\nMentor and collaborate: Pair with teammates, lift the design capability of the team, and support other teams as they build on the systems we own.\n\nDesign and implement features on our market-leading product\n\nCollaborate closely with other product and engineering teams\n\nBe involved in architecture design discussions in how we can build efficient solutions\n\nBuild low-latency massively scalable solutions that cater for millions of requests per minute\n\nWhat you will be working with\nNodeJS\n\nTypeScript\n\nA mix of databases such as Postgres, Redis, Clickhouse, etc\n\nAWS (Kubernetes, Lambda, S3, EC2 etc)\n\nGitHub\n\nWhat you will bring\nAt least 5 years of experience working on backend problems (Node/TypeScript experience a plus)\n\nStrong data modelling skills and experience with various data storage solutions (both SQL and NoSQL)\n\nPrior experience designing system architectures, and comfort designing a system from the ground up given product requirements\n\nA good understanding of AWS services and experience working with containers\n\nExposure to highly scalable architectures and infrastructure as code\n\nExperience mentoring engineers or leading technical initiatives within a team\n\nA great ability to communicate highly technical concepts to 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