Senior Backend Engineer – Platform Team

Posted Yesterday
Be an Early Applicant
Hiring Remotely in Bulgaria
Remote or Hybrid
6K-8K Annually
Senior level
Fintech • Payments
The Role
Own the full backend software development lifecycle, including architecture, implementation, testing, deployment, and production support. Design and scale distributed systems, RESTful APIs, databases, infrastructure, and developer tools. Contribute to platform strategy and AI-enabled software development practices, collaborate with cross-functional teams, and mentor engineers. The role requires strong experience with PostgreSQL or MongoDB, AWS, containers, Kubernetes or serverless systems, CI/CD, and database performance optimization.
Summary Generated by Built In
Description

About Balance

At Balance, we're building the financial infrastructure that powers the next generation of B2B commerce. Our platform enables businesses to streamline payments, automate financial workflows, and deliver exceptional purchasing experiences.

We're looking for a passionate Senior Backend Engineer to join the platform team, help design and scale our system, infrastructure and dev tools.

Salary range- 6000-8000 Euros Monthly

Responsibilities

What You'll Do

  • Take ownership of the entire software development lifecycle—from ideation and architecture through implementation, testing, deployment, and ongoing production support.
  • Participate in architecture discussions and contribute to long-term technical strategy and platform evolution.
  • Contribute to how we shift towards agentic software development lifecycle.
  • Support Balance’s rapid business growth.
  • Collaborate closely with Product Managers, Designers, Data teams, fellow engineers and other stakeholders.
  • Mentor and support fellow engineers through technical guidance, knowledge sharing, and collaborative problem-solving.


Requirements

What We're Looking For

  • You’re curious about and actively experimenting with how AI changes Software Development Lifecycle.
  • 7+ years of experience building production-grade backend applications.
  • Experience designing and building RESTful APIs and service-oriented architectures.
  • Significant practical experience building distributed systems.
  • Hands-on experience with large-scale production databases, including PostgreSQL and/or MongoDB.
  • Strong knowledge of data modeling, indexing, query optimization, and database performance tuning.
  • Experience working with AWS cloud services.
  • Experience with Docker, Kubernetes, and/or serverless architectures.
  • Experience building and maintaining CI/CD pipelines.
  • Solid understanding of software architecture, clean code principles, and design patterns.
  • Experience working in Agile development environments.
  • Frontend experience with React or similar frameworks is an advantage.
  • Bachelor's degree in Computer Science, Software Engineering, or a related field is an advantage.


Skills Required

  • 7+ years of experience building production-grade backend applications
  • Experience designing and building RESTful APIs and service-oriented architectures
  • Significant practical experience building distributed systems
  • Hands-on experience with large-scale production databases, including PostgreSQL and/or MongoDB
  • Strong knowledge of data modeling, indexing, query optimization, and database performance tuning
  • Experience working with AWS cloud services
  • Experience with Docker, Kubernetes, and/or serverless architectures
  • Experience building and maintaining CI/CD pipelines
  • Understanding of software architecture, clean code principles, and design patterns
  • Experience working in Agile development environments
  • Curiosity about and active experimentation with AI's impact on software development lifecycle
  • Frontend experience with React or similar frameworks
  • Bachelor's degree in Computer Science, Software Engineering, or a related field
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The Company
150 Employees
Year Founded: 2020

What We Do

Balance builds financial infrastructure for B2B commerce, helping businesses manage the full transaction lifecycle. Its platform combines payment acceptance and checkout with invoicing, collections, payment reconciliation, real-time credit intelligence, and embedded trade-credit financing. It supports methods including ACH, cards, and wire, while automating finance operations and helping merchants offer flexible payment terms to business buyers. The company describes its mission as powering transactions through connected financial tools.

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