Senior Backend Engineer – Distributed Reporting & Data Infrastructure

JR United Kingdom; Cheltenham; Remote; GBP 50,000 - 85,000; Full time

Job summary

A leading global firm, INDY, is seeking a backend-focused engineer to enhance their analytical backend systems. This engineering role requires expertise in Ruby on Rails and AWS to optimize data reporting processes efficiently. Successful candidates will contribute significantly to the design and maintenance of the reporting engine that supports millions of transactions worldwide.

Benefits

Massive visible impact on millions of users

Start-to-Finish ownership without bureaucracy

Collaboration with founders and experts in the field

Qualifications

• 5+ years building backend systems with high throughput experience.
• Experience with data management practices and AWS.
• Familiarity with data visualization tools, particularly Highcharts.js.

Responsibilities

• Own and maintain a distributed reporting engine for data processing.
• Tune backend systems for efficiency and throughput.
• Design and expose APIs to improve data accessibility across platforms.

Skills

Building high-throughput backend systems

Deep Ruby/Rails expertise

Optimizing multi-terabyte MySQL schemas

AWS production experience

Experience with BI/reporting engines

Job description

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Client:

INDY

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Other

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EU work permit required:

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Job Views:

3

Posted:

06.06.2025

Expiry Date:

21.07.2025

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Job Description:

Location: Remote (Global)

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

○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

Event-driven or stream processing (Kafka, Kinesis)

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.