Boundlayer
Backend Development

Backend Development Partner for Fintech and SaaS

We design and build secure, scalable, and maintainable backend systems — APIs, microservices, payments, and data pipelines — ready for real business load.

Typical project size: $10k–$100k

What you get

  • Secure, scalable, maintainable backend
  • APIs your product and partners can rely on
  • Lower latency and infrastructure cost
  • Confidence under real business load
Sounds familiar?

The problems we solve

Your backend is slow, fragile, or hard to change safely.

You need robust APIs, payments, and auth built by people who've done it before.

Scaling load is causing outages, timeouts, or runaway database costs.

You want senior backend capacity without a lengthy hiring process.

What's included

Delivered by senior engineers, end to end

API & microservices

Well-designed REST/GraphQL APIs and services with clear boundaries, documentation, and tests.

Data & performance

PostgreSQL modeling, Redis caching, queues with Kafka/RabbitMQ, and query optimization for real load.

Auth & payments

Authentication, authorization, and payment integrations built securely and correctly.

Reliability engineering

Monitoring, logging, and error handling so you can trust the system in production.

Node.jsNestJSPythonTypeScriptPostgreSQLRedisKafkaRabbitMQ
Process

A clear, transparent process

From first call to launch and long-term support.

  1. 1

    Discovery Call

    We discuss your business goals, current challenges, timeline, budget, and expected outcome.

  2. 2

    Technical Review

    We analyze your product, architecture, integrations, infrastructure, or project requirements.

  3. 3

    Proposal & Roadmap

    You receive a clear technical proposal, estimated budget, timeline, and delivery plan.

  4. 4

    Development

    We build, test, deploy, and iterate with regular communication and progress updates.

  5. 5

    Launch & Support

    We help you launch, monitor, optimize, and continue improving the product after release.

FAQ

Backend Development — common questions

Primarily Node.js/NestJS and Python with TypeScript, PostgreSQL, Redis, and Kafka/RabbitMQ. We choose the stack that fits your team and problem, not a one-size-fits-all template.

Yes. We can extend and improve your current system, own a specific service, or work alongside your in-house team.

Yes. We have experience with fintech backends, payment integrations, and building systems with security and reliability as first-class concerns.

Clear architecture, code review, automated tests, and monitoring — so changes are safe and the system stays maintainable.

Free consultation

Get a Free 30-Minute Technical Consultation

Share a few details about your project and we'll get back to you within 48 hours with a clear next step.

  • No sales pressure — a senior engineer, not a sales rep
  • Clear next step within 48 hours
  • We can sign an NDA before we talk

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