BairesDev
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  2. Custom Software

Custom Software Development Company

Build custom software with experts trusted by 1500+ companies.

Our custom software development solutions power some of the world's top companies. Work with us to launch new web and mobile apps, modernize core systems, and accelerate delivery across your roadmap.
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4.9/5 stars60 client reviews

We've had quite a few superstars who resolve our problems without our full-time engineers having to step in.

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Nishant Roy

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Trusted by ctos at 1500+ companies
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Custom Software development services

No matter what you’re building, we can help.

Our custom software development services cover the full lifecycle, from ideation and architecture to deployment and optimization. Bring in our experts to ship higher-quality software faster and without adding headcount.

Google Cloud Platform Partner
AWS Partner
ISO 27001 certified - Information Security Management System
Architecture & Strategy

The right architecture is the foundation for speed, stability, and scale. We work with your engineering and product leaders early to lock in decisions that prevent months of rework down the road. Our designs are modular, balancing performance, resilience, and cost from the start.

Our senior architects run focused discovery sessions with your teams. They dig into constraints, document trade-offs, and produce blueprints you can act on. These cover data flows, service boundaries, deployment topologies, observability patterns, and governance policies. Every choice ties back to business value, reducing delivery risk.

Legacy Modernization

We modernize outdated systems so they can move as fast as your business needs to. Our developers know both legacy and modern languages, which means we can untangle complex logic and rebuild it on scalable, maintainable architectures.

We refactor brittle codebases, break domains into microservices, and re-platform core systems. Along the way, we upgrade frameworks, databases, and CI/CD tooling. Our team builds automated regression tests and rollback plans to protect uptime and data integrity while reducing maintenance costs and setting you up for future growth.

Cloud-Native Application Development

We build cloud-native applications that scale easily, stay resilient under load, and keep operating costs predictable. Our engineers use managed services, container orchestration, and serverless functions to deliver elasticity and reliability from day one.

We also put governance in place to keep your cloud secure and financially sustainable. That means active cost management, multi-region designs to protect uptime, and portable architectures that prevent you from getting locked into a single vendor.

Enterprise Integration & APIs

We connect enterprise applications, SaaS platforms, and legacy systems into one high-performance ecosystem. Our integrations link new solutions with ERPs, CRMs, data warehouses, and third-party platforms so data flows where it's needed.

Our team applies versioning, schema governance, authentication, authorization, and rate limiting to keep data exchange secure and reliable in both directions. This enables safe automation, accelerates product development, and extends the value of the systems you already have. Our architects oversee every connection to make sure integrations stay fast, dependable, and ready to scale.

Backend Development

We design backends built to perform under heavy, unpredictable demand. Our engineers use domain-driven design, horizontal scaling, CQRS, and database sharding to keep speed and reliability consistent as usage grows.

We implement and maintain full-stack observability and automatic failover to ensure stability well beyond launch. We run continuous profiling, chaos testing, and cost-performance drills to identify issues early and keep systems operating efficiently. Capacity-planning workshops give stakeholders accurate forecasts, helping you remove uncertainty as volumes increase.

Front-end & UX Engineering

We build fast, responsive interfaces that meet recognized accessibility standards, including WCAG 2.2. Our UX engineers turn complex business workflows into intuitive designs that scale without losing performance or usability.

We run Lighthouse audits and automated visual regression tests to keep interactions smooth and brand-consistent. We implement and maintain advanced accessibility tooling, along with real-user monitoring, to catch and fix issues before they affect customers. This improves engagement, reduces support demand, and keeps the front end reliable under load.

Test Automation

In too many teams, QA happens at the end of the release cycle—slowing delivery and letting costly defects slip through. We move testing into the pipeline from the start with a comprehensive, automated strategy tailored to your stack and workflows.

This shift-left approach catches bugs, security vulnerabilities, and performance issues early (when they're faster and cheaper to fix). Tight feedback loops allow frequent, low-risk releases that protect your users and brand. They also give engineering teams the confidence to ship at speed.

DevOps & Continuous Delivery

We engineer delivery platforms that standardize best practices and reduce operational risk. Our experts design infrastructure as code, build automated pipelines for releases, and set up monitoring across every environment for real-time visibility.

Teams gain self-service deployments with guardrails that prevent configuration drift and enforce security baselines. We track SLO compliance to keep performance on target. The result is shorter lead times, fewer failed changes, and faster recovery when issues occur.

Custom Software case studies

1250+ software development projects delivered.

Across every stage of development, we have the experience to build custom solutions that deliver real value. It’s why 500+ clients choose us as their custom software development company.

Case Study Background TicketGalaxy
Media and Entertainment

Developed AI-Powered Dynamic Pricing Tool for Ticket Sellers

TicketGalaxy
Case Study Background Kinesso
Marketing & Advertising

Developed Marketing Intelligence Engine with Custom KPIs and Snowflake Integration

Kinesso
Case Study Background iWave
Fundraising

Improved Speed and Scalability of Fundraising Intelligence Platform

iWave
Education
We scaled Blackboard's LMS while streamlining support and release cycles.
2-Year Engagement
.NET | Java | Salesforce
Blackboard's priority was to scale its LMS without disrupting 26% of the global LMS market it already served. We assembled a senior software engineering team that worked hand-in-hand with Blackboard's in-house development team.
Maintained and improved solutions in managed hosting services.
Developed and tested various custom software applications.
Implemented new processes with ServiceNow.
Blackboard company logo

Get expert help for your Custom Software project.

Their engineers perform at very high standards. We've had a strong relationship for almost 7 years.

Our Custom Software Development Teams

Meet the experts behind our best work.

Top-quality software solutions require a highly specialized, dedicated team. That’s why we have experts for every stage of the software development lifecycle, from software architecture to quality assurance.

    • C# / .NET
    • React
    • Azure DevOps
    • AWS Certified Solutions Architect – Professional
    • Microsoft Certified: Azure Developer Associate
    • AWS
    • GCP
    • Terraform
    • Kubernetes
    • AWS Certified Solutions Architect – Professional
    • GCP Professional Cloud Architect
    • Kubernetes
    • Terraform
    • GitHub Actions
    • Argo CD
    • Prometheus
    • Certified Kubernetes Administrator
    • HashiCorp Certified: Terraform Associate
    • Selenium
    • Cypress
    • Playwright
    • ISTQB Advanced Test Automation Engineer
    • Certified Professional in Accessibility Core Competencies (CPACC)
    • Jira
    • Confluence
    • Miro
    • PMI-ACP
    • Certified Scrum Professional

Onboard a software 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+

ProjectsDelivered

4000+

DevelopersOn Staff

500+

ActiveClients

96%

Client RetentionRate
Why work with us

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.

  • Vetted Senior Talent
    We 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 Aligned
    We 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 English
    Our 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 Capabilities
    With 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 Teams
    Our 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 & SOWS
    We’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 Protection
    We 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 Security
    Our 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 Delivery
    We 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 custom software development experts.

Flexible engagement models

Need software 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 Custom Software projects in 2-4 weeks.

We have reps across the US.

Speak with a client engagement specialist near you.

  1. 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.

  2. 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.

  3. 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.

Custom Software Development Solutions

Build with software engineers who have experience in your industry.

We’ve delivered projects across 130+ industry sectors. You won’t spend weeks getting us up to speed. Our software developers arrive with a clear grasp of your industry’s data complexity, compliance mandates, and competitive pressures.

  • Navigate complex regulations with custom platforms that power secure transactions, advanced analytics, and modern customer experiences.

    Build solutions for:
    • Machine Learning-Driven Fraud Detection
    • Algorithmic Trading Platforms
    • Real-Time Payment Processing
    • Regulatory Reporting Automation
    • Credit Scoring & Underwriting
    • Wealth-Management Portals
    • Risk & Compliance Dashboards
    • Customer-360 Data Hubs
    • AML & KYC Automation Platforms
    • Insurtech Claims & Policy Automation

Custom Software Development Capabilities

We cover the custom software development stack (and everything around it).

As a top custom software development company, we build on a modern tech stack optimized for performance and scale. Our expertise spans 100+ technologies, so we can support any need on your roadmap.

Curious how we’d approach your custom software development project?

Custom Software Development Process

How we deliver innovative software solutions that drive business value:

We’ve refined our custom software development services across hundreds of projects. Whether you need end-to-end execution or targeted support, we step in wherever you need us to move projects forward without friction.

Strategic Discovery

We partner with stakeholders to define measurable business outcomes, identify constraints, and establish the KPIs that will define success long after launch.

1
Architecture & Tech Strategy

We design resilient architecture for today’s needs and future growth, choosing technologies for performance, security, and cost-effectiveness.

2
Delivery Engine Setup

We configure Git repos, CI/CD pipelines, tests, and cloud environments so your team can build quickly and safely from day one.

3
Prioritization & Sprint Planning

We turn strategic goals into a clear, prioritized backlog, planning agile sprints to deliver the most valuable work first.

4
Test-Driven Development & Integration

We use TDD to build features, APIs, and systems with automated checks that prevent breaking existing functionality.

5
Continuous Security & Quality Scans

We integrate automated scanners into the pipeline, catching vulnerabilities, code issues, and compliance risks on every commit so developers can fix problems before they reach production.

6
Automated Deployment to Production

We build and manage zero-downtime pipelines with canary releases, safely deploying updates to production without disrupting users.

7
Production Observability & Alerting

We track logs, metrics, and traces with SLO-based alerts to monitor health, performance, and usage in real time.

8
Continuous Optimization

We analyze observability data to fix bottlenecks, reduce costs, and guide the next sprint's priorities.

9
Governance & Strategic Evolution

We maintain security, compliance, and efficiency while evolving your platform to meet future challenges and opportunities.

10

Client testimonials

Get dev outcomes you can stand behind.

Our work holds up in reviews, in production, and in front of the board.

Join 500+ companies who count on our Custom Software developers

Global companies have trusted us to build and scale custom software solutions for over a decade.

  • Forcepoint
  • Abbott
  • AbbVie
  • Abra
  • Acklands-Grainger
  • Acumen
  • Arlo
  • Associated Press
  • Autodesk
  • Avigilon
  • Azlo
  • BBVA
  • Blackboard
  • Burger King
  • Care.com
  • Chime
  • ConsumerAffairs
  • GlobalStart
  • CropTrak
  • eBay
  • Ernst & Young
  • Fresenius
  • Gennev
  • Google
  • Great Wolf Lodge
  • Groupon
  • Hewllet-Packard
  • HomeAdvisor
  • IBM
  • Instructure
  • IPG Mediabrands
  • IQVIA
  • iSeatz
  • iWave
  • Johnson & Johnson
  • Kapsch
  • Keller Williams
  • Kinesso
  • Limeade
  • Netgear
  • Newsela
  • NextRoll
  • Panasonic
  • Patra Company
  • Pinterest
  • R/GA
  • Regeneron
  • Repay
  • Rolls-Royce
  • Salesforce
  • Sana Sano Consulting
  • SAP
  • SiriusXM
  • Swordpoint
  • Thomson Reuters
  • Ticket Galaxy
  • Trone Brand Energy
  • Turner
  • Udemy
  • Univision
  • Urban Outfitters
  • Verisk
  • ViacomCBS
  • Volkswagen
  • Volvo
  • Whirlpool
  • Xtensifi

Excellence.
Our minimum bar for client delivery.

Over 130 awards, accolades, and achievements showcase our quality and commitment to client success.

Our trophy cabinet
  • 1,250+projects
    delivered
    projects executed successfully
  • 130+industry
    sectors
    industry sectors industry sectors
  • America's Fastest-Growing Companies 2025 by Financial Times
    America's Fastest-Growing Companies 2025 by Financial Times
  • Top 100 U.S. IT Innovators 2025 by CIO100 Awards
    Top 100 U.S. IT Innovators 2025 by CIO100 Awards
  • Nearshore North America Top Software Developers 2025 by Clutch
    Nearshore North America Top Software Developers 2025 by Clutch
  • Top 100 Global Outsourcing Providers 2024 by IAOP Global Outsourcing 100
    Top 100 Global Outsourcing Providers 2024 by IAOP Global Outsourcing 100

Accelerate custom software development and delivery with our top-rated nearshore teams.

Schedule a Call

Custom Software Development FAQ

What tech leaders ask about our custom software development services:

How does your custom software development process speed up delivery?
We accelerate delivery in two main ways. First, our process removes early bottlenecks with a proven startup sequence: standing up environments, CI/CD pipelines, and automated quality checks in parallel with backlog planning. We ship frequent, small releases to shorten feedback loops and reduce risk. Second is the quality of our talent. Our top 1% senior engineers bring experience from hundreds of custom software development projects, allowing them to design for scale, anticipate integration challenges, and avoid costly mistakes. As a result, you ship software faster without sacrificing quality.
Can you replace off-the-shelf software without disrupting business processes?
Of course. We start by mapping out dependencies and breaking legacy systems into manageable parts. Then we run the new solution alongside the old one, phasing in changes so there's no downtime. This way, your business operations keep running smoothly, and we can confirm the new, tailored system meets (or beats) your current KPIs before making the full switch
How do you protect sensitive data during development?
When we deliver custom software solutions, data security is built into every stage. We use zero-trust access controls, secure secrets management, and continuous scanning for vulnerabilities in code and dependencies. Our safeguards align with SOC 2, HIPAA, and PCI-DSS—using encryption, audit logs, and least-privilege permissions—so your data stays protected and compliance isn't left to chance.
How senior are your software engineers?
For us, seniority isn't just about years in the field. It's about proven impact. Most of our engineers have 10+ years of experience leading complex builds, solving high-stakes performance issues, and designing scalable architectures across industries. They've made the hard trade-offs, kept systems reliable under heavy load, and delivered at scale. Every hire passes a rigorous process that evaluates technical excellence, strategic thinking, and clear English communication. Once on your team, they are fully capable of leading reviews, setting standards, and designing solutions that accelerate delivery without piling on tech debt. They also hold relevant industry certifications and stay current with the latest technologies and best practices. But what matters most is that they can work independently, reduce your oversight burden, and deliver results you can trust.
Will time-zone alignment really improve our custom software development process?
Absolutely. Our nearshore teams share your workday, join stand-ups live, and resolve blockers in minutes to hours (not in days). Working with us means faster feedback loops, a cornerstone of Agile software development. This alignment, plus our talent quality and expertise, accelerates the development process and helps you hit sprint goals without the delays typical of far-shore vendors.
Can you add more developers if our needs grow mid-project?
Absolutely. Our model is built for flexibility and rapid scaling. With 4,000+ software engineers on staff and thousands more in our pipeline, we can scale your team without slowing delivery. Our clients onboard new software developers or spin up teams at any point during a project in a few days to a few weeks, depending on the specific need.
Do you integrate with existing governance and vendor-onboarding protocols?
Yes. We adapt to your MSAs, SOW templates, and procurement portals. Standard NDA and IP clauses (plus SOC 2 Type II evidence) help streamline onboarding. Our dedicated compliance team confirms that every custom software development partner requirement is satisfied before work begins.
What post-launch support keeps customized solutions performant long-term?
After go-live, we operate your solution with the same rigor we use in development. Our team provides SLO-driven support, automated patching, and quarterly performance and architecture reviews. We build and maintain observability pipelines—covering logs, metrics, and traces—to give continuous visibility into system health. Proactive tuning keeps cost, reliability, and scalability aligned with changing demand, so your custom software continues to meet business and technical targets over time.
How do you measure ROI when developing custom software?
We define ROI around the engineering outcomes we can directly influence. Before development starts, we baseline metrics like cycle time, lead time, deployment frequency, change failure rate, defect rate, and MTTR. During the project, we build in monitoring and tracking so these metrics are captured automatically. That way, we can show how our work speeds up delivery, improves stability, and scales smoothly—helping you get features to market faster and with fewer issues.
What's your experience with enterprise software development?
We've delivered hundreds of enterprise projects for Fortune 500s and high-growth companies like Google, Pinterest, eBay, and Rolls-Royce. Our top 1% senior engineers are vetted for their experience with complex architectures, integrations, and compliance demands typical of enterprise systems. Because we work across 100+ technologies and cover the full software development lifecycle, we can support multi-year roadmaps without skill gaps slowing progress. Our nearshore model with US-based accountability gives you a rapid ramp-up (often in 2–4 weeks) while meeting the performance, security, and regulatory standards enterprise leaders expect. Bottom line: If you're searching for enterprise software development services, we have the expertise and bench to support you.
What's your approach to large-scale or multi-system integrations?
Our software integration services start with a full assessment of your architecture, data flows, and interdependencies to surface risks before development begins. We design integration plans that account for performance, security, and scalability, using proven patterns like API gateways, event-driven messaging, and data mapping. Testing happens in parallel with development to validate each connection under real-world load, and we stage rollouts to avoid downtime. The result is a seamless integration that keeps your systems stable while expanding functionality.

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