Custom software, engineered from idea to production.

Production software built around how your business works: customer-facing products, internal platforms and the APIs that connect them. We take features from rough idea to shipped, tested and observable, and we write code your own engineers will be glad to inherit.

• New products and major features, end to end
• Web applications, mobile apps and public APIs
• Internal tools and workflow automation
• Integrations with the systems you already run

• Web platforms
• iOS & Android
• APIs & integrations
• Internal tools

AI features are software features: they need data pipelines, evaluation, guardrails, monitoring and a sensible cost model. We help you choose the problems where AI earns its place, then build them to hold up in production for the long run.

• LLM-powered features with retrieval over your own data
• Evaluation harnesses that measure quality continuously
• ML pipelines from data preparation to deployment
• AI embedded into existing products and workflows

• LLM integration
• Retrieval (RAG)
• Evaluation & guardrails
• ML pipelines
• MLOps

Your most valuable software is often your oldest. We modernize step by step: isolating the risky parts, adding tests around what works, and moving workloads to the cloud when the economics add up, so the business keeps running throughout.

• Incremental re-architecture of monoliths
• Cloud migration and right-sizing
• Framework, language and runtime upgrades
• Test coverage around critical paths

• Re-architecture
• Cloud migration
• Upgrades
• Cost & reliability

Release speed is a quality discipline. We build the automated tests, pipelines and infrastructure as code that let your team ship small changes often and roll back calmly whenever needed.

• Test automation strategy and implementation
• CI/CD pipelines and release automation
• Infrastructure as code and environments on demand
• Observability, alerting and incident readiness

• Test automation
• CI/CD
• Infrastructure as code
• Observability
• SRE practices

Sometimes the most valuable addition is seasoned technical judgment. A CrossX technical leader can own architecture decisions, shape a hiring plan, assess the health of your systems, or steady a team through a critical delivery while you find the right permanent leader.

• Architecture and build-versus-buy decisions
• Engineering roadmap and hiring plan
• Technical health assessments
• Interim engineering leadership

• Architecture
• Roadmapping
• Team design
• Interim leadership