Callista Software OÜ

By combining domain knowledge with technical expertise, Callista has helped its partners to bring innovative products to market and scale up their businesses. With a full-stack development team and DevOps partners, we offer a one-stop-shop for all your technical and business development needs. Our solutions: Product Strategy & Architecture In conjunction with your product owner, our team iterates on your business plan and product design to help you succeed. With vast amounts of experience in SaaS and PaaS solutions, we can offer valuable insights and propose a plan of action, to achieve and exceed your goals! In conjunction with your product owner, our team iterates on your business plan and product design to help you succeed. With vast amounts of experience in SaaS and PaaS solutions, we can offer valuable insights and propose a plan of action, to achieve and exceed your goals! Back-End Development The back-end is your source of truth. Our team of experienced Java and PostgreSQL developers ensures the highest level of quality. By performance benchmarking and automating the testing process, we can provide scalable and fault-tolerant service. Technology Audit Businesses evolve over time and some services and processes get lost or are forgotten. That can hinder further development and scaling efforts. To make informed decisions you need a clear picture. This is where our experts come in to help you map your existing solutions and propose a way forward. Scaling & Cloud Native Software Modern software solutions need high availability and scalability. By partnering with us, you get access to a team of experts to design and implement your infrastructure. Whether it is on Amazon, Google Cloud or a custom Kubernetes cluster — we got you covered!