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Senior Backend Engineer – Distributed Reporting & Data Infrastructure

Senior Backend Engineer – Distributed Reporting & Data Infrastructure

INDYSheffield, UK
30+ days ago
Job type
  • Full-time
Job description

Location : Remote (Global)

Team Size : ≈ 10 engineers

Core Stack : Ruby on Rails (API-only), Sidekiq, MySQL, AWS (EC2, RDS, EFS), Highcharts.js (data consumers)

About INDY

INDY powers every operational layer of a movie theater—from ticket sales and concessions to scheduling, accounting, and real-time business intelligence. Our platform handles tens of millions of tickets a year across cinemas worldwide, yet we remain a nimble team where each engineer’s work is felt immediately in theaters on six continents.

Why This Role Exists

Our home-grown reporting platform is the analytical backbone of INDY. It decomposes incoming queries into thousands of parallel Sidekiq jobs (hourly → daily → weekly → monthly roll-ups) and serves the results back to cinema managers in seconds. As volume soars, we need a backend-focused engineer to :

  • Own and harden this distributed reporting engine.
  • Design data pipelines that can ingest years of transactional data and still answer ad-hoc questions quickly.
  • You will partner with—but not be accountable for—front-end engineers who wire these APIs into Vue-based dashboards.

What You’ll Do

  • Architect & Scale

    • Profile, partition, and optimize multi-terabyte MySQL schemas.

    Tune Sidekiq queues, worker pools, and EC2 autoscaling groups for bursty loads.

    Refactor long-running jobs into idempotent, parallelizable units.

  • Maintain Data Integrity & Observability

    • Implement validation, audit trails, and automated backfills.

    Instrument metrics / alerting around throughput, latency, and cost.

  • Expand Administrative Workflows

    • Expose clean GraphQL / REST contracts that power accounting tools for film bookings, revenue splits, and studio payouts.

    Introduce domain-specific abstractions (DSLs, helpers) so other engineers can add new report types rapidly.

  • Collaborate Across Functions

    • Work with infra engineers on Terraform-managed AWS resources.

    Pair with front-end devs to ensure APIs are ergonomic and secure.

    Advise product and finance teams on data-model trade-offs.

    What We’re Looking For

    Must-Have

    Nice-to-Have

    5+ yrs building high-throughput backend systems

    Experience with BI / reporting engines or OLAP stores

    Deep Ruby / Rails & ActiveRecord expertise

    Exposure to ClickHouse / Redshift / BigQuery

    Hands-on MySQL tuning (indexes, partitioning, query plans)

    Event-driven or stream processing (Kafka, Kinesis)

    Proven record scaling background-job frameworks (Sidekiq, Resque, Celery, etc.)

    Familiarity with data-viz pipelines (we use Highcharts.js)

    AWS production experience (EC2, RDS, IAM, VPC)

    Contributions to OSS or tech-blog posts on performance

    What Success Looks Like (6-12 Months)

  • Daily report-generation latency cut by 50 % while data volume doubles.
  • Zero-downtime schema migrations and automated backfill strategy in place.
  • First phase of studio-settlement APIs shipped and adopted by finance ops.
  • Comprehensive dashboards / alerts proactively surface scaling limits before customers notice.

    • Why INDY Rocks

  • Massive Visible Impact – Your optimizations ripple out to millions of moviegoers.
  • Start-to-Finish Ownership – No layers of bureaucracy; ship, measure, iterate.
  • Technically Spicy – Distributed computing meets real-world financial correctness.

    • Tight-Knit Crew – Collaborate directly with founders and domain experts.

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    Senior Backend Engineer • Sheffield, UK