Software with taste, at every scale.

Common builds the whole of it: the network, the database, the product, the AI and the business case behind it. Each of us has spent a decade across the entire stack and the industry, so there are no hand-offs between specialists and nothing falls in the gaps. We build from proven patterns, we know where the leverage is, and we skip the process that does not earn its keep. It is why AI at Common pays for itself.

up to10×faster than conventional delivery. We configure and extend proven patterns and skip the bureaucracy that does not earn its keep, unless you want it.

01 / 10 · Finance

Start with the case

Before we write a line of code we put numbers on it: what it costs, what it returns, and how soon.

Numbers before nouns

Ten layers, one team

Finance: Numbers before nouns

Every build starts from the numbers: what it costs, what it returns and what it puts at risk.

  • Start with the case. Before we write a line of code we put numbers on it: what it costs, what it returns, and how soon.
  • Price the risk. Technical, security and delivery risk, named and weighed up front, so decisions are made with open eyes.
  • Build, buy, or don't. Total cost of ownership, honestly counted. Often the best system is a purchase, a smaller scope, or nothing at all.

Technologies: QuickBooks, Xero, NetSuite, SAP S/4HANA, Sage Intacct, Dynamics 365, Workday, Stripe, Microsoft Excel, Anaplan.

Most common techniques: ROI analysis; TCO modelling; NPV and cash-flow modelling; Scenario planning; Unit economics.

Consulting & Strategy: Right problem, shortest path

Many failed projects solved the wrong problem well. We make sure we are solving the right one.

  • Question the brief. Most failed projects solved the wrong problem well. We interrogate the goal before we choose the solution.
  • Read the room and the code. Independent review of architectures, vendors and plans: what is sound, what is fragile, and what to fix first.
  • Diligence you can act on. A plain-spoken read on the true state of a codebase, a team and a stack, for leaders, investors and acquirers.

Technologies: TOGAF, ArchiMate, C4 model, SAFe, Domain-driven design, Wardley mapping, Miro, Confluence, Jira, Lucidchart.

Most common techniques: Discovery workshops; Architecture decision records; Technical due diligence; Risk registers and SWOT; Build-versus-buy analysis.

Product design: Taste you can use

Products and interfaces designed together with the engineering, so what gets drawn is what gets built.

  • Start with the person. Flows are shaped around what people are trying to do, then tested as prototypes before engineering commits.
  • Systems, not screens. Components and tokens that keep a product coherent as it grows and as the team changes.
  • Designed with engineering. Designers and engineers work from the same constraints, so what is drawn is what ships: fast, accessible, and consistent.

Technologies: Figma, FigJam, Sketch, Storybook, Tailwind CSS, Radix UI, Framer, Lottie, Maze, zeroheight.

Most common techniques: User interviews; Usability testing; Personas and journeys; Heuristic evaluation; Design tokens.

Generative AI: Judgment over novelty

Agents, retrieval and knowledge systems where they earn their place, measured so you know they work.

  • Does it need AI at all?. We decide whether a problem needs AI, and which approach is the simplest that works: prompting, retrieval, fine-tuning or agents.
  • Agents that earn trust. Tool-using agents and retrieval over your own documents and data, wired into the software you already run, including AI for governance, risk and compliance.
  • Measured, not hoped. Evaluation sets, LLM judges, regression tests and monitoring, so quality, cost and failure behaviour are known and stay known.

Technologies: Claude, GPT, Gemini, Llama, LangChain, LlamaIndex, Hugging Face, PyTorch, pgvector, Model Context Protocol, LLM-as-a-Judge.

Most common techniques: Prompt engineering; RAG; Fine-tuning (LoRA); Agents and tool use; Evaluation and guardrails.

Applications & websites: Fast, clear, built to change

Web, mobile and backend software on clear architecture, fast, accessible and built to be changed.

  • Clear architecture. Web, mobile and backend software with boundaries that make sense, so the next engineer understands it on day one.
  • Fast and accessible. Performance budgets and accessibility from the first commit. Slow or unusable software is broken software.
  • Built to change. Tests, typed interfaces and small steps, so changing the product next year is cheap rather than frightening.

Technologies: JavaScript, TypeScript, Python, React, Node.js, Next.js, FastAPI, Java, C#, React Native, C++.

Most common techniques: API design (REST, GraphQL); Test-driven development; Clean architecture; Modular services; Core Web Vitals tuning.

Automation: Work that runs itself

Workflows, integrations and internal tools that remove repetitive work, and fail loudly instead of silently.

  • Find the leverage. We look for the repetitive work where automation pays back fastest, and leave the rest alone.
  • Connect everything. Workflows, integrations and internal tools that remove the hand-offs between the systems you already use.
  • Fails loudly. Retries, alerts and monitoring on everything, so a failure is noticed in minutes, not months.

Technologies: Zapier, Make, n8n, Workato, Apache Airflow, Temporal, Prefect, Camunda, GitHub Actions, UiPath.

Most common techniques: Event-driven workflows; RPA; ETL and ELT pipelines; API orchestration; Idempotent retries.

Database administration: The data you cannot afford to lose

Data designed, tuned and protected so it stays correct, fast and recoverable as you grow.

  • Designed for your questions. Schemas and indexes shaped around real access patterns, with integrity enforced by the database itself.
  • Fast, and kept fast. Query analysis, tuning and capacity planning before slowness becomes an outage.
  • Safe to lose a server. Backups you have actually restored, replication and careful migrations, so the data survives the bad day.

Technologies: PostgreSQL, MySQL, SQLite, SQL Server, Redis, MongoDB, MariaDB, Oracle, Elasticsearch, Snowflake.

Most common techniques: Index design and query tuning; Point-in-time recovery; Replication and HA; Zero-downtime migrations; Partitioning.

Operations: Stays up

Deployment, observability and the day-two reality of running software, so your team can keep it healthy.

  • Ship safely. Automated build, test and release turn deployment into a routine, not an event.
  • See everything. Logs, metrics, traces and alerts that tell you something is wrong before your customers do.
  • Runnable by your team. Runbooks, on-call practice and documentation, so the system never depends on us.

Technologies: Kubernetes, Docker, Terraform, GitHub Actions, Argo CD, Jenkins, GitLab CI, Helm, Prometheus, Grafana.

Most common techniques: CI/CD pipelines; Infrastructure as code; GitOps; Observability; Incident response and SLOs.

Cybersecurity: Secure by design

Security treated as part of the architecture from the first day, not a review bolted on at the end.

  • Threat model first. We map what could go wrong and who might cause it, then spend effort where the risk really is.
  • Hardened by default. Least privilege, strong authentication and managed secrets from the first day, not retrofitted.
  • Compliance without theatre. Controls and evidence that satisfy auditors because they are real, not paperwork laid on top. Our experts have brought industry-leading GRC intelligence to multiple Fortune 500 financial organisations.

Technologies: OWASP Top 10, MITRE ATT&CK, NIST CSF 2.0, ISO 27001, SOC 2, CIS Controls, OAuth 2.0 / OIDC, Okta, HashiCorp Vault, Burp Suite.

Most common techniques: Threat modelling (STRIDE); Zero Trust architecture; Defence in depth; Penetration testing; Least privilege.

Network engineering: The quiet foundation

The connectivity everything else depends on, designed simply and sized to what you actually need.

  • Foundations. Topology, addressing and segmentation designed simply, so the network is understandable and secure.
  • Connected and fast. Cloud, on-premise and hybrid connectivity, with latency, throughput and resilience planned in.
  • Sized to need. Infrastructure that fits today's demand with a clear path to growth, not an expensive guess.

Technologies: BGP, OSPF, VXLAN, IPsec, WireGuard, SD-WAN, Cisco IOS, Juniper Junos, Wireshark, Ansible.

Most common techniques: Network segmentation; Redundant routing; VPN and zero-trust access; Network automation; Traffic monitoring.

Price match guarantee

Found a better price? We will match it.

Bring us a comparable written quote for the same scope and we will match the price. We would rather earn the work on the quality of what we build than on what we charge, so there is nothing to negotiate around.

Details are agreed on the call.

Bring us something worth building well.

Pick a time that suits you. We will listen, ask sharp questions and tell you plainly whether and how we can help.

Prefer a full page? Open the scheduler in a new tab.

Prefer email? info@commonsystems.ai