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Back-end development services

Engineering maturity at the back-end layer

We engineer modular backend architectures that scale reliably as data volume, business logic, and integrations grow, without turning into a fragile system or long-term technical debt.

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Back-end development services we provide

We deliver back-end development services focused on system stability, scalability, and long-term maintainability.

Custom back-end development

We design and build backend systems that handle complex business logic, growing data volumes, and evolving product requirements.

API design & development

We create secure, well-structured REST and GraphQL APIs with clear contracts, versioning, and predictable behavior.

Modular & microservice architecture

We engineer modular and microservice-based backends that scale without tight coupling or architectural fragility.

Database design & optimization

We design reliable data models and optimize queries to ensure performance, integrity, and scalability over time.

System & third-party integrations

We integrate backend systems with external services, payment providers, CRMs, ERPs, and internal platforms, securely and reliably.

Modernization & ongoing support

We refactor, modernize, and maintain backend systems without disrupting active development or releases.

Share your goals and we’ll help clarify
the right technical direction

Cooperation models

We offer flexible engagement models as part of our mobile app development services, aligned with your product maturity, internal capabilities, and delivery goals.

Software development outsourcing

Problem to solve

Solve your business and product goals with our turnkey technology solutions

Info from you

Vision, budget, delivery expectations/priorities, requirements

Communication model

Project reviews, daily and weekly ceremonies, commercial performance reviews with a single point of contact throughout

Our value proposition

End to end solutions with predictable budgets, a time to market advantage with budget savings of up to 50%

IT staff augmentation

Problem to solve

Quikly scale up your existing technology team with hard to find resources at competitive rates

Info from you

Skills and seniority, culture fit, budget

Communication model

The developers are fully intergrated into your own ceremonies and communication standards

Our value proposition

Devico's motivated and focused experts can be yours for up to 40% less than locals, delivered in days, not months.

Create your dedicated team

Problem to solve

Build a custom team to your own budget and skill requirements to deliver your product and business goals

Info from you

Budget, skills and competence matrix, cultural fit

Communication model

The team integrate with you own standards and communication preferences, and are supported by a dedicated customer success manager who constantly reviews and manages progress

Our value proposition

Avoid operational and HR hassle and the constant threat of attrition with your own R+D department from Devico

Our approach to back-end development services

As part of our back-end development services, we treat the backend as a core system layer, making architectural decisions that support scale, reliability, and controlled evolution.

Step 1

Modular, domain-driven architecture

We structure backend systems around clear domains and modules, with well-defined boundaries and ownership to avoid tight coupling and cascading changes.

Step 2

Separation of concerns by design

We clearly separate business logic, data access, and infrastructure layers to keep the system understandable, testable, and easier to evolve.

Step 3

Scalable data and processing flows

We design data models, transactions, and background processing based on real load patterns, not assumptions — ensuring predictable behavior as volume grows.

Step 4

API-first system design

We design APIs as stable contracts between services and clients, with versioning and backward compatibility built in from day one.

Step 5

Performance-aware backend execution

We plan for performance early through caching strategies, asynchronous processing, and efficient resource usage to prevent bottlenecks at scale.

Step 6

Testability built into the architecture

We structure services and logic to support reliable unit, integration, and contract testing without fragile setups.

Step 7

Change-resilient backend systems

We design backend systems to absorb new features, integrations, and schema changes without breaking existing functionality or slowing delivery.

Domains we serve

Devico brings cross-industry expertise to back-end engineering, delivering UI layers that support complex workflows, regulatory constraints, and scalable product architectures.

Healthcare

Our custom back-end development services for healthcare support clinical platforms, patient portals, and internal medical systems. We design secure architectures that handle sensitive data, regulatory constraints, and integrations with external healthcare systems.

Learn more
Healthcare

Why choose Devico as a back-end development company

Devico delivers back-end development with the discipline and rigor expected of mature engineering organizations.

Architecture before speed

We design back-end systems around data integrity, performance, and long-term maintainability, not quick delivery that creates future debt.

Scalable by design

APIs, services, and databases are structured to handle growth in users, data, and integrations without structural rewrites.

Security and reliability as baseline

Authentication, access control, data protection, and error handling are built in from day one, not patched later.

Business-driven logic

Back-end decisions are tied to real workflows, reporting needs, and operational realities — not isolated features.

Senior-led execution

Core architecture and critical components are handled by experienced engineers, ensuring stability under real load.

Predictable delivery model

Clear scope, realistic timelines, and early risk visibility. No chaos in production, no surprises mid-project.

Share your goals and we’ll help you
think through next steps

Case studies

Fintech
Mobile
UK

Mode app

A new-breed digital finance app that allows users to buy, earn and grow crypto

Decentralized Finance (DeFi)
Blockchain
Mobile
UK

DEFI Wallet

Cryptocurrency wallet

Technology stack

Our engineering teams work across a broad range of modern technologies, selecting the right stack for each project’s complexity and objectives.

  • All

  • Backend

  • Frontend

  • Databases

  • DevOps

  • Clouds

  • Android

  • iOS

  • Cross-platform

  • Blockchain

Node.js-icon

Node.js

Next.js-icon

Next.js

Nest.js-icon

Nest.js

Koa.js-icon

Koa.js

Express.js-icon

Express.js

Python-icon

Python

Django-icon

Django

Java-icon

Java

Spring Boot-icon

Spring Boot

Frequently asked questions

We start with a short technical discovery. As a back-end development company, we review your architecture or idea, business logic, data model, integrations, and constraints before defining scope and responsibilities.

The cost of back-end development services depends on system complexity, integrations, security requirements, and team seniority. Final numbers are only set after discovery.

For production-ready systems, custom back-end development services usually take 3–6+ months, including architecture, implementation, and stabilization.

For a back-end development services company to work effectively, we need a clear business goal, access to existing systems, and a single decision-maker on your side.

As a back-end development services company, we spend more time upfront on architecture, data flows, and failure scenarios. This means fewer production issues, less rework as the product scales, and back-end systems that remain predictable under real load, not just on day one.

We are not the right back-end development company if speed or price matters more than long-term system stability.

Yes. Many custom back-end development services engagements start with auditing and stabilizing existing systems before adding new functionality.

Our back-end development services can be delivered end-to-end or integrated into your internal team, depending on your structure and goals.

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With a pan European talent pool, Devico brings together the continents best talent and makes them available for you

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