Top Tech Jobs & Startup Jobs in Belfast

Analyze consumer product behavior, design and evaluate A/B tests, define product metrics, and build reusable analytical datasets and dbt models. Use SQL, Python, Snowflake, Dagster, and ETL pipelines to support reliable analysis. Partner with Product, Engineering, Design, and Growth to influence activation, engagement, retention, and monetization decisions. Independently solve ambiguous problems and communicate recommendations to technical and nontechnical stakeholders.

Build and scale Phantom’s data infrastructure for analytics, experimentation, and decision-making. Responsibilities include designing high-volume data architecture, leading data quality and observability initiatives, developing scalable data models, building A/B testing infrastructure, partnering cross-functionally, and mentoring teams. The role requires expertise in Snowflake, dbt, SQL, Python, data architecture, data modeling, and experimentation systems, with blockchain experience preferred.

Manage and scale AWS EKS Kubernetes clusters, automate infrastructure with Terraform or Pulumi, optimize system performance, maintain blockchain nodes, scale databases handling terabytes of data, and improve reliability through monitoring and observability. Collaborate with backend and product teams to support feature development and platform scalability.

Own end-to-end relationships with Phantom’s VIP members through in-app messaging and other channels. Responsibilities include onboarding, proactive check-ins, resolving high-stakes wallet and transaction issues, triaging escalations, coordinating exclusive experiences, communicating with product and engineering teams, and developing playbooks and service standards as the VIP program scales. The role requires deep crypto knowledge, discretion, strong written communication, security awareness, and flexible evening or weekend availability.

Design, maintain, and scale backend services and APIs connecting Phantom Cash to blockchains. Build reliable event-driven systems with REST APIs, distributed-system patterns, retries, idempotency, and data consistency. Collaborate across teams, document decisions, mentor engineers, and improve engineering standards. The role also involves blockchain integrations, operational ownership, observability, and delivering dependable financial products in a remote crypto environment.

The Senior Software Engineer will develop features for Phantom's web platforms, lead new product initiatives, interface with users, and contribute to team culture.

Lead ownership of CI/CD and SDLC infrastructure, automating mobile release pipelines, improving end-to-end test automation, optimizing pipeline performance, and enhancing developer experience while ensuring security and compliance for a consumer fintech product.