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Paysend

Java engineer - Automation and Efficiency team

Beograd, SerbiaPosted Today
onsite

Job Description

About Us:

At Paysend, we’re building a world where moving money is instant, open, and effortless. Our mission? To create the world’s largest open, instant digital payment network - eliminating friction from global finance for people and businesses in 170+ countries.

We’re not just building payment systems; we’re building connections. Our technology links major card networks and local payment rails, reaching more than 20 billion endpoints. That means money moves instantly, globally, and securely - a promise that drives us to deliver excellence in every solution we create.

We’re builders, problem-solvers, and doers who think globally, move fast, and take ownership. You’ll join a team that raises the bar and thrives in a connected, principle-driven culture - empowering you to innovate with momentum and make meaningful impact.

From London to Belgrade, Dublin to Miami, we’re united by one goal: making cross-border payments simpler for everyone. Join the team driving the next evolution of global finance.

Download the Paysend app from the App Store or Google Play.


About The Role:

Join Paysend’s Automation and Efficiency team to help build and improve backend systems that support global payment operations at scale.

This role focuses on designing and developing high-performance backend services and internal tooling used to process and analyze millions of financial transactions daily. You’ll work across distributed systems and data-heavy workflows where reliability, performance, and correctness are critical.

This is a strong fit for engineers who enjoy solving complex backend and data problems, working across multiple services, and building systems that operate under real-world scale and operational demands.


What You'll Do (Responsibilities):

  • Design, implement, and maintain backend services and internal tools in Java, powering the processing and analysis of millions of financial transactions daily

  • Own and evolve PostgreSQL-based data models, queries, and performance optimization across multiple services.

  • Build and improve systems that automate operational and transaction-monitoring workflows at scale

  • Work within a distributed microservices ecosystem, handling service communication, dependencies, and evolving integrations

  • Contribute to the design and implementation of a new fraud monitoring platform built on the company’s modern technology stack

  • Investigate complex production and operational issues, identify bottlenecks, and implement long-term improvements

  • Collaborate closely with QA and Analytics teams to ensure systems are reliable, scalable, and operationally effective

  • Monitor and improve system performance, observability, reliability, and scalability across services

  • Contribute to CI/CD and deployment automation improvements across engineering workflows

What You’ll Need To Be Successful In This Role:

  • 5+ years of backend development experience with Java and Spring

  • Strong hands-on experience with PostgreSQL in production systems

  • Experience working with distributed systems and microservices architectures

  • Experience with major cloud platforms, preferably AWS or GCP

  • Strong engineering mindset with the ability to solve unfamiliar and complex technical problems independently

  • Comfortable working across multiple services and technical domains

  • Strong ownership mentality from implementation through deployment and operational support

  • Ability to adapt quickly to changing technical and business priorities

Great to have:

  • Experience with CI/CD pipelines and deployment automation (GitLab preferred)

  • Experience with Docker or other containerization technologies

  • Hands-on experience with C# or Rust

  • Experience in fintech, payments, fraud detection, or other transaction-heavy systems

  • Bachelor’s or Master’s degree in Computer Science or a related field

Why Join Paysend?

  • Make a Global Impact: Directly impact millions of users worldwide

  • Accelerate Your Career: Benefit from internal mobility, mentoring programs, and continuous learning opportunities

  • Thrive in a Connected, Global Organization: Collaborate with colleagues across our international hubs and more

  • Embrace a Principle-Driven & Focused Culture: Work in an organization guided by strong principles and values that actually help you achieve more than you thought possible

  • Enjoy Competitive Compensation and Benefits: Receive a competitive salary, benefits, and flexible work arrangements

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Java engineer - Automation and Efficiency team at Paysend | Renata