Belgrade, Central Serbia, Serbia · Hybrid
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 back…
Skills: Java, Spring, PostgreSQL, Distributed Systems, Microservices
Belgrade, Central Serbia, Serbia · On-site
Company Description Do you want to shape beneficial technologies with your ideas? Whether in mobility solutions, consumer goods, industrial technology, or energy and building technology – with us, you will have the chanc…
Skills: Windows Server, Linux, Microsoft SQL Server, Azure, Databricks
Belgrade, Central Serbia, Serbia · Hybrid
About the Role We’re hiring a Data Engineer to help build and scale the data platform that powers Rhythm’s core business operations across energy markets, customer lifecycle, and internal decision-making. You’ll work acr…
Skills: Python, SQL, Spark, Databricks, Data engineering
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Design and maintain high-performance Java backend services and internal tools for processing millions of financial transactions. Develop automated operational workflows and contribute to a new fraud monitoring platform within a microservices ecosystem.
Requires over 5 years of experience in Java, Spring, and PostgreSQL within distributed systems and cloud platforms like AWS or GCP. A strong ownership mentality and the ability to solve complex technical problems independently are essential.
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
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
The global infrastructure money moves on.
Paysend operates the holistic payment infrastructure: its own multi-jurisdictional licence footprint, and a full stack of proprietary systems, from processing and FX to orchestration and settlement. The world's network wired in — 25B+ digital endpoints across 170+ countries — interoperable between fiat and stablecoins. Optimised for cost, speed, and simplicity. For businesses plugging in: Enterprise API, Embed, Instant Settlement Accounts (ISA) — one integration, white-label cross-border, instant settlement. Technological and compliance complexity handled — typically live in weeks, subject to integration scope. All on one technology stack — businesses inherit infrastructure proven at scale every day. For over 12 million registered users: the Paysend app, sending home across 170+ countries, every day. Run by a lean team, on owned, proprietary technology, proven at scale — profitable in our most recent financial year, and growing rapidly. Paysend. Money Moves. paysend.com
Offices: London, England WC2E 9BT, GB · Dublin, IE · Belgrade , RS · Miami, US
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