Freelance Backend Engineer

Senior Software Engineer – Java (Contractor)

Rate: 120,000 to 160,000 HUF Per Day
Duration: 3 Months Plus
Start Date: ASAP

As a Senior Software Engineer (Java) – Contractor at Pulselive, you’ll be focused on delivering robust, high-performance backend services and APIs that power digital experiences for millions of sports fans globally. This role is ideal for an experienced, hands-on engineer with strong Java and Spring expertise who thrives in a collaborative and fast-paced delivery environment.
You’ll work closely with cross-functional teams to build, integrate, and optimize systems that handle real-time sports data, video, and live commentary. This position is project- and delivery-focused, with no line management or people-leadership responsibilities required.

Key Responsibilities:
Design and develop scalable backend systems using Java and Spring Boot

Deliver well-structured, maintainable, and testable code aligned with project requirements

Build and maintain RESTful APIs to support web and mobile applications

Integrate with third-party data providers (e.g. sports data, video, commentary)

Use Git to manage code versioning and contribute to shared repositories

Manage deployments across multiple environments (Dev, Test, Staging, Prod)

Ensure systems are performant, secure, and resilient

Identify and manage project-level technical dependencies

Participate in sprint planning and delivery-focused meetings with the wider team

Write and maintain clear technical documentation

Contribute to code reviews and uphold development best practices

Core Skills & Experience:
Expert-level knowledge of:
Java 11+

Spring Boot and Spring Framework (v5+)

JPA/Hibernate and ORM principles

Designing and building microservice architectures

Creating and consuming RESTful APIs

Git for version control and collaborative development

JSON and working with structured data

Unit testing with frameworks like JUnit

Task management tools like JIRA

Writing technical documentation for APIs and backend components

Proficient with:
SQL (PostgreSQL, MySQL, or similar)

Kafka or other messaging/event-driven platforms

Docker containerization

Kubernetes for orchestration

AWS services (e.g., S3, Lambda, EC2, etc.)

Maven for build and dependency management

CI/CD pipelines and deployment automation

Basic understanding of:
Python (scripts, tools, integrations)

Frontend technologies: HTML, CSS, JavaScript (for context when integrating with frontend)