Engineering partner for AI, SaaS, web & cloud products
Build practical AI, SaaS, web and cloud products with an experienced engineering team. Launch sooner, work with people who understand your goals, and keep full ownership of your code.
Engineers first. Shipping useful software.
Why Coretus
We started Coretus because growing companies need an engineering partner that is open about who is on the team, what they are doing and how the work is going. We are engineers first. We focus on shipping useful software, not filling timesheets.
Industries
Claims recovery that captures 42% more revenue
A large health system was losing revenue to denied claims. We built a platform to HIPAA requirements that matches EHR evidence to payer rules and logs every decision.
Read case studySME credit decisions, 4.2x faster
An SME lender needed faster decisions without loosening its credit policy. We built an underwriting engine that sends borderline cases to a person and records every reason.
Read case studyRoom rates that follow live demand
A resort group priced rooms in a daily cycle and reacted late to events. We built AI pricing that watches demand and booking pace, then helps update rates across channels.
Read case studyScreening 10,000+ applications a month
We built AI-assisted screening that compares each application with the role's requirements and explains every match, so recruiters speak to the strongest candidates first.
Read case studyWind turbine inspections without the climb
Inspections used to mean technicians climbing turbines. We built a mobile app to plan drone flights, capture high-resolution images and review the results from the ground.
Read case studyA customer service agent that answers at any hour
For a growing service business, we built an AI agent that answers enquiries, books appointments, updates the CRM and brings in a team member when needed.
Read case studySelected work
AI recruitment platform
HealthTech · Platform engineering
Meeting scheduling
4.2xfaster credit decisions
FinTech · Decisions in milliseconds
AI content marketing
Secure messaging & calls
40+regions, one payroll view
HRTech · Compliance
Automated Freelancer.com bidding
Some of our best work is under NDA. Ask us on a call and we'll share what we can.
Shared under NDA
Services
We help you design, build, test and launch, then keep improving what's live.
Talk to an engineerAI agents, search and automation that run inside your own cloud, with approvals and audit logs.
SaaS platforms built to grow, with multi-tenancy, billing, compliance and integrations in place.
Move older systems to the cloud, make them more reliable and automate releases.
Fast web and mobile apps that work across devices, even on a weak connection.
User research, clear workflows, reusable design systems and focused MVPs.
Leadership
Senior technical and delivery leaders stay close to the work, help resolve important decisions and keep the project moving.
Founder & CEO
Founded Coretus in 2013 and leads the company's direction.
CTO
Leads architecture and engineering: systems built to grow, reliable delivery, DevSecOps, SOC 2-ready controls and practical AI.
COO
Keeps delivery predictable, coordinates teams across time zones and holds every project to the same quality and compliance standards.
Delivery Head
Takes teams from discovery to launch, with clear progress updates, agreed testing standards and a check that every release is ready.
“We built the agency we wished we could hire.”
Partnership models
Pick the support that fits your team today, whether you need ongoing capacity or one clearly defined project.
A ready team of developers, a project manager and QA specialists who work alongside you and keep new features shipping.
Explore managed teamsSenior technical guidance, a clear roadmap and help with the big product and platform decisions.
Explore fractional CTOA clearly scoped product or platform, delivered through agreed milestones with regular updates and written approval criteria.
Scope a projectWe report risks as quickly as wins. You can talk to the engineers directly and see the project tools and progress at any time.
We own the work, explain problems plainly and stay involved until the agreed result is delivered.
We release the smallest useful version, learn from how people use it and improve it without lowering the quality bar.
You own all of it: the source code, designs, documentation and any other IP we create for you. Ownership is written into the service agreement from the start, so there is nothing to buy back and no vendor lock-in. We can also sign an NDA before you share anything sensitive.
Every engineer passes a four-stage selection process before joining a client team. The stages test practical coding, system design, communication and how well the person works with others. We check communication as carefully as code, because your team will talk to ours every day during your shared working hours.
A Coretus team shares at least four working hours with your team every day. We use that overlap for planning, code reviews, stand-ups and quick decisions, so questions don't wait until the next morning. We are based in Rajkot, India, and work with clients worldwide.
You can add specialists, such as extra developers or a DevOps lead, to an existing squad with 14 days' notice. This suits a launch or another important milestone. You can reduce that specialist support again once the release is out, so the team size follows your priorities.
Each managed squad has a flat monthly fee, so you know the cost in advance and never see an hourly bill. The fee depends on the size and skills of the squad. After a first call we suggest the right team and give you a rough quote range. A fixed-scope project gets its own quote instead.
Tell us where you are and what you need next, and we'll suggest the right team and a rough quote range.
A 30-minute call, at a time that suits you.
