PbSite Reliability Engineer - Hedge Fund, Prediction Markets /b /ppFull Time, Barcelona Office /ppcareers.bluewalker.capital /ppbr/ppbAbout the Company /b /ppbr/ppBlueWalker Capital is a hedge fund developing systematic and quantitative trading strategies native to prediction markets. /ppbr/ppWe log hundreds of millions of trades and order book ticks per day, isolate market pairs from tens of millions of combinations, and continuously monitor for a range of arbitrage opportunities we execute on. It's still early days for us—we are deepening a moat across trading infrastructure, datasets, and modeling. /ppbr/ppWe trade algorithmically using our own balance sheet, generating daily returns exceeding 1% with the capacity to rotate hundreds of thousands of euros in daily volume. /ppbr/ppOur mission is to become the leading hedge fund in this emerging asset class, delivering investment returns while making prediction markets efficient as the world's most accurate source of truth. /ppbr/ppbAbout the Role /b /ppbr/ppWe are a small engineering team, which means your responsibilities scale rapidly and your impact is clear and foundational. Much of our infrastructure is still greenfield, and entire systems can be yours to design and own. You'll ensure the reliability, observability, and operational robustness of systems handling hundreds of thousands of euros in daily trade volume. /ppbr/ppbResponsibilities /b /ppbr/pulliOwn uptime and reliability of trading infrastructure: execution systems, market data pipelines, and risk monitoring. /liliBuild and maintain observability across the stack (Prometheus, Grafana, distributed tracing) with alerting tuned to trading-specific failure modes. /liliDefine SLOs and error budgets for latency-sensitive services; lead incident response and post-mortems. /liliHarden infrastructure against data feed outages, exchange connectivity failures, and clock drift. /liliManage and automate deployments, environment configuration, and secrets management (Kubernetes, Terraform, CI/CD, HashiCorp Vault, GCP Secret Manager). /liliCapacity plan and performance-tune systems under real trading load, identifying bottlenecks before they become incidents. /li /ulpbr/ppbWho we are looking for /b /ppbr/ppHard Skills /pulli2+ years in a production SRE or DevOps role with ownership of critical, low-tolerance systems. /liliProficiency in Python or Go for tooling, automation, and service development. /liliHands-on experience with Kubernetes, Terraform, and CI/CD pipelines. /liliStrong Linux fundamentals: networking, kernel tuning, process isolation, and time synchronization (PTP/NTP). /liliExperience with observability stacks and building alerting logic that minimizes noise without missing critical events. /li /ulpbr/ppSoft Skills /pulliFluent English /liliSharp and methodical under incident pressure; rigorous in post-mortems. /liliSelf-starter who takes ownership of problems end-to-end with limited guidance. /li /ulpbr/ppPreferred Skills /pulliFamiliarity with trading infrastructure: FIX protocol, market data (ITCH, OPRA), exchange connectivity. /liliExperience with high-throughput messaging systems from durable, replayable pipelines (Kafka) to low-latency in-memory streams with consumer semantics (Redis Streams) to brokerless microsecond-range IPC (ZeroMQ). /liliUnderstanding of latency profiling and performance optimization in time-critical systems. /li /ulpbr/ppbWhat it’s like here /b /ppbr/pulliFast paced environment. /liliWe value strong integrity. /liliWe’re direct and honest with each other. /lili5 days a week, in person. Full immersion. /liliProject ownership and autonomy, flat company structure. /liliWe value people who take initiative and are able to figure things out. /li /ulpbr/ppCompany culture is informal, non-hierarchical, ambitious, collaborative and entrepreneurial. /ppbr/ppbCompensation package /b /ppbr/ppCompetitive compensation, tailored to ability and experience. /ppbr/ppbBenefits /b /ppbr/pulliTeam Offsite /liliFlexible Holidays /liliGym Membership /lili3' walking to 3200 m2 gym /lili5' walking to FCG train station /liliCutting-edge infra and technology /li /ulpbr/ppbLinks /b /p pcareers.bluewalker.capital /ppLinkedin /ppX /p