Elixir Development · London
Elixir Development in London
Building with Elixir for London organisations, where failure is designed for rather than defended against. Work runs in isolated processes under supervisors that restart them when they fail — so an unexpected error takes down one small piece and the system continues, which is a genuinely different reliability model from catching exceptions everywhere.
Why this comes up
The problem
One unhandled error in a background task brings down the process handling every other user's work.
What you get
What we deliver
- Supervision structured so a failure affects the smallest reasonable unit
- Restart strategies chosen deliberately per part of the system
- State held in processes with clear ownership rather than shared globally
- Real-time features built on the platform's own primitives where they fit
- Observability used, since the runtime exposes more than most platforms
- Team readiness considered, as the functional model is a genuine adjustment
Want this scoped for your business in London?
Thirty minutes, no charge, no sales script. You leave with a written summary of what elixir development would actually involve — whether or not you use us.
Working in London
London
London clients usually come to us because they want senior people actually on their project rather than a large agency's B team, and because Midlands rates buy considerably more delivery per pound.
Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates.
Sectors we work with in London
- Financial Services
- Professional Services
- Technology
- Media
- Hospitality
- Retail
What we work with
Technologies and platforms
- Elixir
- Phoenix
- OTP
- PostgreSQL
Who we work with
Industries we serve
- Telecoms operators
- SaaS businesses
- Media companies
- Financial services
- Technology companies
Why us
Why London businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in London
Looking for the full picture? See our Elixir Development services, everything we do in London or browse everything we do.
Elixir Development in London — common questions
- What does letting it crash actually mean?
- Not writing defensive code for states you did not anticipate. The process handling that work fails, its supervisor restarts it in a known-good state, and everything else continues — which handles unforeseen errors better than code that tries to guess at them.
- Where does this model pay off?
- Systems with many concurrent independent activities — connections, sessions, devices, jobs. Each gets its own process, one failing affects nobody else, and the runtime handles hundreds of thousands of them without the weight of operating system threads.
- Is it only for real-time applications?
- It suits them particularly well and is a capable general platform. Ordinary web applications benefit from the reliability model and the introspection, though the strongest case remains work with substantial concurrency or persistent connections.
- How hard is it for a team to adopt?
- The syntax is approachable and the model takes longer. Immutable data, pattern matching and thinking in processes rather than objects is a real adjustment, and teams should plan for a genuine learning period rather than a week of orientation.
- Do you work with businesses across Greater London?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout London, including London and the surrounding Greater London area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of London businesses do you usually work with?
- Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates. Beyond that we work across Financial Services, Professional Services, Technology, Media, Hospitality and Retail.
- Do you cover the areas around London?
- Yes — we work throughout London, including Reading, Milton Keynes, Cambridge, Brighton. London is an urban area of roughly 9,000,000+, and we take on work across the wider Greater London region rather than the city boundary alone.
Talk to us about Elixir Development in London
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise