BACKEND DEVELOPMENT SERVICES
Build custom backend solutions with experts trusted by 1500+ companies.
Our backend developers build infrastructure that scales under pressure and stays reliable as your product grows. We’ve shipped complex production systems for companies like Pinterest and SiriusXM. Onboard senior backend engineers in 2 weeks.
Sr. Backend Engineer
Mateo L.
11 years of experience
Previous Client
Sr. Backend Architect
Ricardo F.
14 years of experience
Previous Client
Sr. Database Engineer
Andrés M.
9 years of experience
Previous Client
Sr. API Engineer
Luciana V.
10 years of experience
Previous Client
Sr. DevOps Engineer
Carlos D.
12 years of experience
Previous Client
BACKEND DEVELOPMENT SERVICES
No matter what you're building, we can help.
Backend infrastructure determines how fast you ship features, how reliably systems scale, and how quickly teams adapt to changing requirements. Companies turn to our backend experts to deliver that infrastructure, from initial architecture through cloud deployment and production optimization.
Backend Architecture & Strategy
Most backend problems trace back to architecture decisions made under pressure or without full context. We work with engineering and product leaders to design modular, performant systems that support current needs while accommodating future scale.
Our architects assess constraints, map data flows, evaluate technology trade-offs, and deliver blueprints covering service boundaries, deployment patterns, and governance policies. So you get architecture that reduces technical debt and supports stable production operations.
API Development & Integration
Poorly designed APIs create performance bottlenecks, security vulnerabilities, and integration headaches that compound as your product evolves. Every weakness gets exposed at scale, whether it's inadequate rate limiting under load or brittle contracts that break downstream services.
We build REST and GraphQL APIs with authentication, rate limiting, versioning, and schema validation. Our backend developers implement monitoring and error handling to keep integrations stable as services change. So you ship features faster and maintain reliable third-party connectivity.
Microservices Architecture
Monolithic backends eventually hit limits where every change risks breaking existing functionality and deployments require coordination across the entire codebase. Microservices architecture breaks systems into independently deployable services, but transitioning without careful planning creates distributed complexity.
We map service boundaries around your domain logic and build independent deployment pipelines for each service. Our implementations include distributed tracing and API gateways so you maintain visibility across the system. Teams can then ship components independently without blocking each other or destabilizing production.
Database Architecture & Optimization
Database performance directly impacts user experience, feature velocity, and infrastructure costs. As data grows, poorly optimized queries, missing indexes, and inadequate scaling strategies create cascading problems across your backend.
Our database engineers analyze query patterns, design efficient schemas, implement caching layers, and establish replication strategies. We work with SQL and NoSQL databases to balance consistency, performance, and cost. As a result, you get faster response times, lower infrastructure spend, and confidence in data integrity.
Cloud Backend Development
Building backend infrastructure on cloud platforms requires expertise beyond basic deployment. You need architectures that leverage managed services, auto-scaling, and distributed systems patterns while keeping costs predictable and operations manageable.
We architect backend solutions on AWS, Azure, and Google Cloud using serverless functions, managed databases, container orchestration, and event-driven patterns. Implementations include monitoring, cost controls, and disaster recovery. So you get scalable systems without the overhead of managing physical infrastructure.
Backend Modernization & Migration
Legacy systems create drag, but stopping everything for a rewrite can be much worse. You need a way to modernize without gambling on a big-bang cutover.
We migrate components incrementally while production stays live. Old and new systems run in parallel during transition, with automated validation catching behavioral differences before they reach users. Rollback procedures give you an exit if something breaks. Your stack gets modernized without betting the company on a single deployment.
Real-Time Data Processing
Applications requiring live updates, streaming analytics, or instant notifications need backend architectures designed for real-time data flows. Batch processing systems can't meet these requirements without fundamental redesign.
We implement event streaming platforms, message queues, and WebSocket connections that process and deliver data with minimal latency. Using Kafka, Redis, and distributed caching, we build systems handling high-throughput streams while maintaining consistency. So your users get responsive features backed by real-time data.
Authentication & Identity Systems
Fragmented identity systems create security gaps, user friction, and engineering overhead. Legacy auth implementations often lack support for SSO, MFA, or federation—forcing workarounds that accumulate technical debt and compliance risk.
We build a centralized identity infrastructure that consolidates authentication across applications. Our implementations include SSO integration, role-based access control, identity provider federation, and session management. This gives you unified access control, reduced security exposure, and streamlined user experience across your product portfolio.
Backend case studies
Hundreds of backend development projects delivered.
We have the experience to build backend systems that handle scale, complexity, and business-critical operations. It's why 500+ clients choose us as their backend development company.
- MEDIA & ENTERTAINMENT
Migrated SiriusXM to AWS and Built Streaming Backend for 34 Million Subscribers
SiriusXM wanted to transition from a broadcast company to a provider of cloud-based streaming services. We provided backend engineers, front-end engineers, and QA specialists over an 11-year engagement to handle the complex migration using TIBCO BusinessWorks. The team designed and implemented a completely new architecture, migrated all applications to AWS, and automated deployment. Our work shortened release times from 8 hours to just 1 hour.
- Java
- Python
- Amazon Web Services
- TIBCO
- Linux
- MARKETING & ADVERTISING
Scaled NextRoll's Backend to Launch 100K Ad Auctions Per Second
NextRoll needed to hone its machine learning technology to launch approximately 100,000 ad auctions per second on autopilot. We provided backend engineers, data engineers, and Big Data specialists. Over 7 years, we augmented NextRoll's Data Science, BI, Applications, RTB, Infrastructure, Solutions Engineering, and Big Data teams. Our work helped NextRoll scale quickly to serve 50 billion ad impressions per day and increase new customers by 60%.
- Python
- Erlang
- Go
- Java
- Spark
- Hadoop
- Amazon Web Services
- MEDIA & ENTERTAINMENT
Migrated 3.65 Million Stories from AP's Legacy CMS to Modern .NET
Associated Press hosted news on a legacy Classic ASP platform. They needed to migrate 3.65 million stories and historic databases dating back to 1985 to a modern framework without disrupting news delivery. We provided .NET engineers and database specialists over a multi-year engagement. The team migrated content from nearly 20 news sections, transferred historic databases, and established infrastructure that handles 400,000 annual story uploads.
- .NET
- C#
- SQL Server
- Salesforce
Advertising & Marketing
Pinterest teamed up with us to rebuild its Ads Manager architecture for scale.
- 5-Year Engagement
- 233 Specialists
Pinterest needed to rebuild its Ads Manager backend to handle growth and deliver more value to advertising partners. The platform's architecture required significant changes to support scale and reduce operational complexity. Our backend, frontend, and data engineering teams integrated with Pinterest's in-house developers to hit their production deadline.
Rebuilt the Ads Manager architecture to handle scale
Reduced infrastructure complexity and costs across the ads platform
Scaled engineering team from 5 developers to 233 specialists
Get expert help for your Backend project.
“Their engineers perform at very high standards. We've had a strong relationship for almost 7 years.”
OUR BACKEND DEVELOPMENT TEAMS
Meet the backend development experts behind our best work.
Behind every successful backend solution is a highly specialized team. That's why we have experts for every stage of backend development, from architecture design and API development to database optimization and cloud deployment.
- Python
- Node.js
- PostgreSQL
- AWS Certified Solutions Architect – Professional
- Microsoft Certified: Azure Developer Associate
- Kubernetes
- Terraform
- AWS
- AWS Certified Solutions Architect – Professional
- Google Professional Cloud Architect
- PostgreSQL
- MongoDB
- Redis
- MongoDB Associate DBA
- Oracle Database Administration
- Kong
- Postman
- Node.js
- AWS Certified Developer – Associate
- Kong Gateway Certified Associate
- Docker
- Jenkins
- GitHub Actions
- Certified Kubernetes Administrator
- HashiCorp Certified: Terraform Associate
Onboard a backend development team in weeks, not months.
About BairesDev
Why work with BairesDev? We’re trusted by the world’s top tech teams.
BairesDev is a US-based company powered by LATAM dev teams. Since 2009, we’ve built software for companies of all sizes—from scrappy startups to Fortune 500 giants. In fact, we’re one of the fastest-growing software development companies in the world. If you’re looking for onshore quality with nearshore benefits, we’re the partner for you.
1250+
Projects
Delivered
4000+
Developers
On Staff
96%
Client Retention
Rate
500+
Active
Clients
How we work
Here's what makes us easy to work with and hard to replace:
From code quality to compliance, we’ve optimized every part of how we work to support high-performing engineering teams. For you, that means clearer communication and smoother delivery. Plus, get peace of mind from having a development partner you can depend on.
Work with our backend development experts.
- Vetted Senior TalentWe hire the top 1% of over two million applicants, so you only work with the best.We give you engineers who’ve already proven they can deliver. Our rigorous evaluation process includes technical tests, English assessments, soft skill screening, problem-solving simulations, and more. Out of over 2 million applicants who apply yearly, fewer than 1% get the chance to join our team. This is how we ensure you get highly qualified developers who are experts in their fields.
- Timezone AlignedWe work your team’s hours, which creates faster feedback loops and fewer blockers.Our nearshore software engineers share your workday, answering Slack messages, joining daily stand-ups, and presenting demos in real time. Project management is streamlined, questions are answered quickly, blockers are resolved as they come up, and simple code reviews take minutes, not days.
- Proficient in EnglishOur engineers have strong English skills, so communication and documentation are clear.Our engineers have 8+ years of experience collaborating with US teams. They excel at articulating complex technical concepts to diverse stakeholders, producing meticulous documentation, and driving technical discussions. This eliminates the ambiguity common with global teams.
- Full-stack CapabilitiesWith expertise in 100+ technologies, we have every specialist your project requires.We cover architecture, development, testing, DevOps, and everything in between—reducing hand-offs and creating better architecture decisions for a smoother path from concept to production.
- Scalable TeamsOur bench strength lets you scale engineering teams to meet new demands in weeks.With 4,000+ engineers on staff and thousands more in our pipeline, we can spin up pods or scale multiple teams across your company in days—so you hit aggressive timelines without bottlenecks.
- Standard MSAs & SOWSWe’re easy to onboard because we work the way your legal team expects us to.Because we’re based in the US, we follow the same legal standards your team already trusts—using MSAs, SOWs, and documentation that fit your procurement process.
- NDAs & IP ProtectionWe take data and IP seriously, with full protection baked into every engagement.Every engagement begins with a mutual NDA and clear IP ownership terms. Our secure workflows and confidentiality protocols also protect existing codebases and proprietary data.
- Enterprise-grade SecurityOur devs follow security protocols that meet even the strictest enterprise standards.Our engineers work only within the systems they need, using strict access control, audit-friendly workflows, secure repository storage, and more—bringing enterprise-grade protection to every engagement.
- Managed DeliveryWe actively track our devs’ work to make sure they consistently meet expectations.Delivery managers monitor progress, resolve blockers, and report regularly, so you never have to chase updates or second-guess performance.
Work with our backend development experts.
Flexible engagement models
Need backend development expertise?
Plug us in where you need us most.
We customize every engagement to fit your workflow, priorities, and delivery needs.
- Need a couple of extra software engineers on your team?
Staff Augmentation
Get senior, production-ready developers who integrate directly into your internal team. They work your hours, join your standups, and follow your workflows—just like any full-time engineer.
- Need a few teams to deliver several projects in simultaneously?
Dedicated teams
Spin up focused, delivery-ready pods to handle full builds or workstreams. Together we align on priorities. Then our tech PMs lead the team and drive delivery to maintain velocity and consistency.
- Want to offload everything to us, from start to finish?
Software outsourcing
Hand off the full project lifecycle, from planning to deployment. You define the outcomes. We take full ownership of the execution and keep you looped in every step of the way.
Kick off backend development projects in 2-4 weeks.
We have reps across the US.
Speak with a client engagement specialist near you.
- Discuss solutions and decide team structure.
Tell us more about your needs. We'll discuss the best-fit solutions and team structure based on your success metrics, timeline, budget, and required skill sets.
- Onboard your team and get to work.
With project specifications finalized, we select your team. We're able to onboard developers and assemble dedicated teams in 2-4 weeks after signature.
- We track performance on an ongoing basis.
We continually monitor our teams' work to make sure they're meeting your quantity and quality of work standards at all times.
BACKEND SOLUTIONS
Build with backend engineers who have experience in your industry.
We've delivered projects across 130+ industry sectors. You won't have to spend weeks getting us up to speed. Our engineers come in with a clear understanding of your industry's data complexity, compliance requirements, and unique needs.
BACKEND DEVELOPMENT CAPABILITIES
We cover the backend stack (and everything around it).
As a top backend development company, we use a modern tech stack built for performance and scale, with a focus on proven tools. Our expertise spans 100+ technologies, so we're equipped to support your full roadmap: backend development and beyond.
Cloud Platforms & Infrastructure
Message Queues & Event Streaming
We select messaging systems based on throughput requirements, delivery guarantees, and operational complexity. These platforms decouple services and handle high-volume data flows reliably.Apache KafkaRabbitMQAmazon SQSAmazon KinesisGoogle Pub/SubRedis StreamsApache PulsarCaching & Performance
We select caching tools based on data volatility, latency requirements, and infrastructure compatibility. These systems reduce database load while maintaining consistency across distributed environments.MemcachedVarnishAmazon CloudFrontCloudflareAzure CDNNginxMonitoring & Observability
We select observability tools based on integration depth, alerting capabilities, and correlation across metrics, logs, and traces. These platforms surface issues before they impact users.PrometheusGrafanaDatadogNew RelicELK StackJaegerOpenTelemetryCloudWatchCI/CD & DevOps
We select pipeline tools based on repository integration, testing capabilities, and deployment flexibility. These platforms enforce quality gates and enable frequent, low-risk releases.GitLab CIGitHub ActionsCircleCIAnsibleArgoCDSpinnakerSecurity & Authentication
We select identity and security tools based on protocol support, compliance certifications, and integration with your existing systems. These platforms enforce access controls while supporting audit requirements.Auth0KeycloakOktaHashiCorp VaultAWS IAMOWASP ZAPSnykCyberArk
BACKEND DEVELOPMENT PROCESS
How we deliver backend solutions that drive business value:
We've refined our backend development services across hundreds of projects. Whether you need end-to-end execution or support for an internal team, we step in wherever you need us to move projects forward without friction.
Requirements & Technical Discovery
We work with stakeholders to understand business objectives, system constraints, and integration requirements, translating them into architecture decisions aligned with your goals.
Architecture Design & Technology Selection
Our architects design scalable systems based on your data flows, performance requirements, and existing infrastructure, selecting technologies that balance maintainability and cost.
Database Schema Design & Optimization
We design normalized schemas, define relationships, establish indexing strategies, and plan for data growth. This ensures efficient queries, data integrity, and the ability to scale as your application evolves.
API Contract Definition
We define API specifications with request/response formats, authentication, and versioning before development begins. This establishes contracts between teams that prevent integration issues.
Development Environment & CI/CD Setup
We configure development, staging, and production environments with automated testing, code quality checks, and deployment pipelines. Developers can ship code confidently knowing every commit is validated.
Iterative Backend Development
Our engineers build server-side logic, implement business rules, and integrate with databases and third-party services using test-driven development. Code is peer-reviewed and deployed incrementally to reduce risk.
API Integration & Testing
We integrate backend services with frontend applications, mobile clients, and external systems. Comprehensive API testing validates functionality, performance, and error handling under realistic conditions.
Performance Testing & Optimization
We conduct load testing to identify bottlenecks, optimize database queries, implement caching strategies, and tune resource allocation. This ensures backend systems handle production traffic efficiently.
Security Hardening & Compliance Validation
We implement authentication frameworks, encrypt sensitive data, apply security patches, and conduct vulnerability assessments. Systems meet compliance requirements like HIPAA, PCI-DSS, and GDPR before launch.
Production Deployment & Monitoring
We deploy backend services using blue-green or canary strategies to minimize downtime. Real-time monitoring tracks performance metrics, error rates, and system health to catch issues immediately.
Ongoing Optimization & Maintenance
After launch, we monitor system performance, apply security updates, optimize resource usage, and refine architecture based on actual usage patterns to keep your backend efficient and cost-effective.
Client testimonials
Get backend results you can stand behind.
Our work holds up in reviews, in production, and in front of the board.
Global companies have trusted us to build and scale custom backend solutions for over a decade.
Excellence.
Our minimum bar for client delivery.
Over 130 awards, accolades, and achievements showcase our quality and commitment to client success.
- 1,250+projects
delivered - 130+industry
sectors
America's Fastest-Growing Companies 2025 by Financial Times Top 100 U.S. IT Innovators 2025 by CIO100 Awards Nearshore North America Top Software Developers 2025 by Clutch Top 100 Global Outsourcing Providers 2024 by IAOP Global Outsourcing 100
What tech leaders ask about our backend development services:
How quickly can you staff a backend development team?
We typically staff backend teams within 2–4 weeks. Our 4,000+ engineer bench includes backend specialists with experience in Python, Java, Node.js, Go, cloud platforms, and more. This allows us to assemble the right backend development team quickly based on your technology stack and project requirements.
What level of experience do your backend developers bring?
We screen over 2 million applicants annually and hire less than 1%. Our experienced developers average 8–10+ years building production systems. They've architected backends processing billions of requests, optimized database performance at scale, and built APIs serving millions of users. They understand server side development, distributed systems, and caching strategies without needing guidance on fundamentals.
Will your team work in our time zone and integrate with our processes?
Yes. Our nearshore backend teams work US business hours, communicate in English, and participate fully in your standups, sprint planning, and code reviews. We adopt your tools (GitHub, Jira, Slack), follow your API design standards and coding conventions, and operate as an extension of your team from day one.
Do you have experience in regulated industries?
Yes, we're ISO 27001 certified and have delivered backend solutions across regulated industries. Our implementations include encrypted data storage, audit logging, role-based access controls, and secure API authentication. With hundreds of projects in highly regulated industries under our belts, our teams have the experience to meet HIPAA, GDPR, and PCI-DSS requirements without slowing delivery.
Can you build backends for both web and mobile applications?
Yes. Our backend development services support web app backend development and mobile app backend development from a unified codebase. We design APIs that serve web, iOS, and Android clients efficiently, with appropriate caching, payload optimization, and authentication flows for each platform.
How do you approach custom backend development for complex business logic?
We start by mapping your domain model and business rules before writing code. Custom backend development projects get dedicated architecture sessions where we document edge cases, validation rules, and integration requirements. This ensures server-side logic accurately reflects your business operations and handles exceptions gracefully.
Can you work with our existing backend infrastructure?
Absolutely. We've integrated with legacy systems running on mainframes, on-premise servers, and cloud platforms. Our backend engineers analyze existing architectures, identify integration points, and build solutions that connect with your current systems. Whether you need API layers for legacy systems or incremental cloud migration, we deliver seamless integration without disrupting operations.
How do you ensure backend systems can scale for future growth?
We architect scalable infrastructure from the start using horizontal scaling patterns, database sharding strategies, caching layers, and load balancing. Our engineers conduct performance testing under projected loads and implement monitoring to track resource usage. This is how we give you systems that handle growth without expensive rewrites or service disruptions.
What's your approach to backend security and data protection?
Data security is embedded throughout development. We implement authentication frameworks (OAuth 2.0, JWT), encrypt data at rest and in transit, apply principle of least privilege for API access, and conduct security testing before deployment. Our practices align with OWASP guidelines and industry standards to protect your data and users.
How do you handle database migrations and schema changes?
We use migration tools that version database changes alongside code, allowing rollbacks if needed. Changes are tested in staging environments that mirror production data patterns. For large datasets, we implement zero-downtime migration strategies using read replicas and gradual cutover. So your applications stay online throughout the transition.
Useful Backend resources
See why the biggest names in tech choose our backend development services.
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