on SaaS platforms. Deep understanding of API integrations , such as RESTful APIs, OAuth, and webhook. Will also require extensive knowledge of GraphQL and ApolloDB Confident in background job processing (Sidekiq/Resque) and asynchronous services. Exposure to containerisation such as Docker and Kubernetes is beneficial. Contract Details Outside IR35 Contract Role £600 Per Day Fully Remote 6 Months 1 Stage More ❯
for C#, SST ECS, Linux, Ansible, Packer New Relic, Insight Hub Product Development Stacks: Ruby, Ruby on Rails, Ember.js, JavaScript NodeJS, TypeScript, Angular, TailwindCSS .NET 7, Blazor WebAssembly Puma, Sidekiq Postgres, Redis GitHub, AzureDevOps, Slite, Slack How You'll Make An Impact We are looking for a talented senior software engineer who is experienced at building applications for consumers and More ❯
for C#, SST ECS, Linux, Ansible, Packer New Relic, Insight Hub Product Development Stacks: Ruby, Ruby on Rails, Ember.js, JavaScript NodeJS, TypeScript, Angular, TailwindCSS .NET 7, Blazor WebAssembly Puma, Sidekiq Postgres, Redis GitHub, AzureDevOps, Slite, Slack How You'll Make An Impact We are looking for a talented senior software engineer who is experienced at building applications for consumers and More ❯
up Comfort with build pipelines, continuous integration, and Docker Proficiency with Git source control Strong HTML and CSS skills Good communication skills in written, verbal, and code Knowledge of Sidekiq, Tailwind, GraphQL, React Hook Form, React Query We offer: An experienced and small team where you can have a great impact Freedom to experiment with tools and technologies to boost More ❯
building back-end services with Ruby on Rails and PostgreSQL Deep knowledge of the Rails and Ruby ecosystem, tools and best practices Experience working with common Rails gems like Sidekiq, Devise, RSpec Designing and building RESTful APIs for consumption by web and mobile applications A strong understanding of software architecture patterns and when to use them Relational Database design, implementation More ❯
We are growing our team to allow us to expand the use of Dentally across the globe. Our Tech and Tools Ruby, Ruby on Rails, Ember.js Postgres, Redis Puma, Sidekiq Heroku, AWS GitHub, Asana, Slite, Slack, New Relic The way we work We look for problem solvers, not ticket takers. We're not about following strict processes or micromanaging. We More ❯
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 … 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 … 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 More ❯
knowledge in... We are expanding our team to facilitate the global use of Dentally across the globe. Our Tech and Tools: Ruby, Ruby on Rails, Ember.js Postgres, Redis Puma, Sidekiq Heroku, AWS GitHub, Asana, Slite, Slack, New Relic #J-18808-Ljbffr More ❯
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 … 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 … 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 More ❯
London, England, United Kingdom Hybrid / WFH Options
ZipRecruiter
Stack Overview (this isn’t a list of all the things you need, just giving you a good overview of what is on offer) Backend: Ruby on Rails, PostgreSQL, Sidekiq, Redis, AWS Frontend: Turbo/Hotwire, Phlex, AlpineJS, TailwindCSS AI/LLM: OpenAI, Claude, LangChain (or equivalents) Infra: Docker, Terraform, GitHub Actions, CloudWatch What You’ll Do Write clean, well More ❯
Stack Overview (this isn’t a list of all the things you need, just giving you a good overview of what is on offer) Backend: Ruby on Rails, PostgreSQL, Sidekiq, Redis, AWS Infra: Docker, Terraform, GitHub Actions, CloudWatch What You’ll Do Write clean, well-tested code across the stack with a product-focused mindset Own feature development end to More ❯
Stack Overview (this isn’t a list of all the things you need, just giving you a good overview of what is on offer) Backend: Ruby on Rails, PostgreSQL, Sidekiq, Redis, AWS Infra: Docker, Terraform, GitHub Actions, CloudWatch What You’ll Do Write clean, well-tested code across the stack with a product-focused mindset Own feature development end to More ❯
Stack Overview (this isn’t a list of all the things you need, just giving you a good overview of what is on offer) Backend: Ruby on Rails, PostgreSQL, Sidekiq, Redis, AWS Infra: Docker, Terraform, GitHub Actions, CloudWatch What You’ll Do Write clean, well-tested code across the stack with a product-focused mindset Own feature development end to More ❯
Contract (6 months) Rate: £550/day (outside IR35) Key Requirements: Commercial experience with Ruby on Rails (Rails 7) Strong knowledge of Hotwire (Turbo + Stimulus) Comfortable with PostgreSQL, Sidekiq, Redis, and background job processing Solid understanding of RESTful APIs and scalable backend architecture Bonus: Experience in retail or eCommerce platforms If you or someone in your network fits the More ❯
London, England, United Kingdom Hybrid / WFH Options
Koinly
React) Strong knowledge of SQL databases, query optimizations Excellent problem-solving and debugging skills Experience with RESTful APIs, microservices, and third-party integrations Knowledge of background job processing tools (Sidekiq, etc.) Proficiency in at least 2 programming languages Good written and verbal communication skills in English Don’t ‘tick all of the boxes? Neither do we. We are driven by More ❯
with ranging seniority so the majority of your time will be spent working as an individual contributor. Our tech stack: Ruby on Rails 7, Hotwire (Turbo, Stimulus), View Components, Sidekiq, PostgreSQL, Redis, Serverless, AWS (Fargate, Aurora, ElastiCache), GitHub In this role, you'll get to: Design, implement and deliver software such as ingestion pipelines, API and a greenfield internal operations More ❯
with ranging seniority so the majority of your time will be spent working as an individual contributor. Our tech stack: Ruby on Rails 7, Hotwire (Turbo, Stimulus), View Components, Sidekiq, PostgreSQL, Redis, Serverless, AWS (Fargate, Aurora, ElastiCache), GitHub In this role, you'll get to: Design, implement and deliver software such as ingestion pipelines, API and a greenfield internal operations More ❯
