ByteCode

ByteCode is an engineering consultancy that specialises in Ruby on Rails systems and practical AI. It investigates slow or unstable production software, carries out the fixes itself and stays involved through rollout, rather than handing over a report and leaving.

What ByteCode offers

• Performance and reliability — tracing problems across Rails, PostgreSQL, Sidekiq, Redis and Kubernetes, such as slow endpoints, queue backlogs, memory kills and database strain.
• AI systems — grounded LLM workflows, agent integrations and automation, with attention to evaluation and guardrails.
• Product and platform engineering — senior delivery of new products, integrations and critical features using Rails, React and APIs.
• Rescue and modernisation — independent audits and hands-on recovery for legacy code, risky upgrades and stalled projects.
• Diagnostic sprint — usually about a week of read-only discovery and telemetry review ending in a prioritised readout.
• Remediation sprint — implementing the most valuable fixes with regression protection and a rollback plan.
• Embedded engineering — ongoing senior support for teams without a long lock-in.

Who it works with

Product teams running Rails in production; past work includes backend delivery for Nexible's online insurance journeys.

Key facts

• Technologies: Rails, PostgreSQL, Sidekiq, Redis, Kubernetes, React
• Focus: production performance, reliability and AI integration