billing/
Fixed price when the scope is clear. Time and materials when it isn't yet. No mark-ups, and no long contract required for a fair rate.
# uk / software / it
JYDEV
JYDEV is a UK engineering consultancy. We build internal tools, apps and infrastructure, ship them to production and run them for as long as you need. Scoped in writing before we quote. Secure from the first commit. Supported with no end date.
$ man engagement
workflow/
We maintain everything we ship, so we build it to be maintained. We write the scope down and agree it with you before we quote. Then we size the work to fit: a two-week build, a longer platform project, or a launch we stay on after.
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1.0
tools/
The software your team uses every day: admin panels, reporting jobs, vendor integrations, first versions of products, and the spreadsheet that quietly became business-critical. We choose well-known stacks your next hire already knows. The people who wrote it are the people who change it.
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2.0
infra/
Cloud architecture, multi-service platforms, reliability work, and joining up systems that were never designed to talk to each other. Hire us to review a design or to build it.
AWS and GCP are our specialism, from a single account to multi-region, multi-project estates with solid IAM, networking and cost controls. We also work with Kubernetes, serverless, VMs, Cloudflare Workers, Postgres, queues, CI/CD and observability. We size for the traffic you expect to have as well as the traffic you have now.
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3.0
apps/
Native apps for Android, iOS, Windows and Linux, for when a website won't do the job. We work out how people will actually use it, then design, build and release it.
Offline-first clients, signed installers, app store and enterprise distribution, and the authenticated APIs behind them.
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4.0
release/
We take products from brief to production. If a decision will add cost or risk, we say so early, while it's cheap to change.
Environments, secrets, rollback and monitoring are in place before go-live. After that, we stay. Support doesn't stop after 30 days.
$ ls capabilities/
capabilities/
We've deployed to most platforms you're likely to run. If yours is one we don't know well, we'll tell you before we touch production.
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deploy/
Bare metal, VMs, Docker and Compose, Kubernetes, AWS and GCP, Cloudflare Workers and Pages, and hybrids of all of these. We handle promotion between environments too.
- Infrastructure as code with Terraform, Ansible or similar
- CI/CD with blue/green or canary releases where they fit
- Managed secrets, matching environments, rollbacks we've tested
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security/
Security is part of every job we take. We track new CVEs, supply-chain attacks and the cloud misconfigurations being exploited right now. When something breaks in the wild, we check your systems before you ask. Threat modelling, security-focused code review, auth and access control, dependency and secrets hygiene, hardening. Fixes arrive as merged changes in your codebase.
- Authentication, authorisation, sessions, least privilege
- Supply-chain checks and secret scanning in CI
- Reviews of apps, APIs and AWS/GCP accounts
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scale/
Multi-tenant systems, busy APIs, databases under load, caching and queues. We set up on-call habits so alerts stay meaningful when traffic spikes.
- Capacity planning, horizontal scaling, back-pressure
- Metrics, logs and traces, and alerts someone acts on
- Architecture that weighs cloud cost against performance
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ai/
We help you build AI into your product: LLM integrations, retrieval over your own data, evaluation and guardrails. If we can't test it or explain it, it doesn't ship. Engineers write all the software around it.
- LLM integrations, tool use, workflow automation
- Search / RAG with clear ownership of the source data
- Logging, rate limits, human review where it matters
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support/
Most of a system's life happens after launch. We handle incidents, small improvements, dependency upgrades and questions about how it works, and the people answering know the code.
- Ongoing support on everything we ship, with no end date
- Runbooks, and pairing with your team
- Hardening as real usage shows where things strain
$ cat billing.md && cat support.md
ops/
support/
Included, and it doesn't expire. It covers systems we built and systems we've taken over.
security/
Secure defaults on everything. If you need a formal audit, we'll tell you plainly when that's outside our scope.
ai/
Your code and data stay out of third-party chat tools. AI features in production are logged, rate-limited and can be switched off.
$ cat /etc/company
JYDEV LTD
- Legal name
- JYDEV LTD
- Company number
- 17506340
- Registered office
- 128 City Road, London, United Kingdom, EC1V 2NX