Backend Development Services: Backend & Full-Stack Development Company

Updated September 2026 · Written and maintained by the Progression Agency strategy team

Progression Agency provides backend and full-stack development services: APIs, databases, business logic, background jobs, authentication and cloud infrastructure behind web and mobile products, plus the front ends that sit on top.

What are backend development services?

Backend development services design and build the server-side of software: APIs, databases, business logic, authentication, integrations and infrastructure.

Full-stack teams own both the backend and the web front end or mobile app, which reduces handoffs.

Backend and full-stack services

Projects we are most often asked to build.

Backend for mobile apps

APIs, auth, push and data sync for iOS and Android apps.

Backend for web and SaaS

Multi-tenant data, billing and permissions.

Database design and optimization

Schemas, indexes and query tuning.

Performance and scaling

Caching, queues and load testing.

Cloud and DevOps

Infrastructure as code, CI/CD and monitoring.

Full-stack product teams

Front end and backend delivered together.

Full-stack teams own both the backend and the web front end or mobile app, which reduces handoffs.

Key features and components

What separates a useful build from a costly one.

Common integrations

Where the value usually comes from.

Security and reliability

Backends hold the data and the keys.

• Least-privilege access and secrets management.
• Encryption at rest and in transit.
• OWASP-aligned security (OWASP).
• Backups, recovery testing and monitoring.

Our backend and full-stack development process

We model the domain and data, choose architecture and infrastructure, build APIs and logic with automated tests, deploy through CI/CD, add observability and tune performance with real load data.

How much do backend development services cost?

As a planning range, a backend for a mobile app commonly costs $30,000-$100,000, a SaaS backend $60,000-$200,000, and ongoing full-stack team capacity is priced monthly.

Technology we typically use

Mainstream, maintainable choices.

Mistakes to avoid

Common causes of overruns and low adoption.

• Premature microservices.
• No automated tests.
• Manual deployments.
• Missing indexes and monitoring.
• Secrets in code.
• No backup restore test.

Why choose Progression Agency for backend and full-stack development?

Engineering, design and go-to-market in one team.

• Pragmatic architecture, not over-engineering.
• Full-stack delivery with web and mobile teams.
• DevOps and observability built in.
• You own the code, data and accounts.
• Headquartered in New York City, working nationwide.

Related services

See API development, custom software development and development outsourcing.

Choosing a backend stack

Mainstream stacks all work. The choice depends on your team, your integrations and your performance needs.

Serverless or containers?

Serverless suits spiky, event-driven workloads; containers suit steady traffic and long-running processes. Many backends use both.

Architecture: monolith, modular monolith or microservices

Most back ends we build are modular monoliths: one deployable service with enforced module boundaries, a queue for background work and a managed PostgreSQL database, with services extracted only when a specific part needs independent scaling, deployment or ownership. That keeps development fast and operations simple until the product proves it needs more. The full reasoning, with a comparison table and a rule for when to split, is in monolith vs microservices.

Related decisions: choosing a tech stack, backend hosting options for Node.js, Django, PHP and .NET, SaaS hosting for multi-tenant products and DevOps services for the pipeline that ships it.

• Cloud migration services: moving existing back ends to AWS, Azure or Google Cloud.
• AWS vs Azure vs Google Cloud: which cloud fits your stack.
• Cloudflare vs AWS: edge protection in front of any back end.

Azure, Python and Laravel backend work

Azure software development fits organizations already on Microsoft: App Service, Azure Functions and Azure SQL with Entra ID sign-in (see .NET development services). We also work as a Python app development company for data-heavy and AI backends, and provide Laravel app development services for teams whose platform is PHP. The choice follows your existing systems and team, not our preference.

Frequently asked questions