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Senior Back-End Engineer (Java)

Horizons

Shanghai (Office), or China (Remote) (Remote - China) Remote permanent

Posted: December 19, 2025

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Quick Summary

We're building the infrastructure to power borderless teams. By handling global payroll, benefits, taxes, and compliance, our technology enables businesses to hire anyone anywhere compliantly at the push of a button.

Job Description

About Horizons

At Horizons, we're building the infrastructure to power borderless teams. By handling global payroll, benefits, taxes, and compliance, our technology enables businesses to hire anyone anywhere compliantly at the push of a button.

If you're interested in adding to our vision of enabling people to work in dream jobs, for every company, and from anywhere in the world, apply now!

We're committed to building a global, diverse team representing different and varied backgrounds, perspectives, and experiences. We welcome applications from everyone, regardless of gender, ethnicity, sexual orientation, religion, civil or family status, age, or disability. Being a Horizoneer means being part of a growing, international family.

Overview

We're seeking an experienced back-end engineer to join one of our Software Engineering squads and build software solutions that support the company rapid growth. If you thrive in a team-oriented setting and are passionate about delivering high-quality software, we invite you to explore the opportunity below.

Responsibilities

• Design, develop and document fast, secured and easy to use APIs to be consumed by both front-end and back-end applications

• Build effective integrations with other applications and third party software

• Own entire implementation cycle from design to rollout

• Work in a cross-functional squad (along with FE, BE, QA Engineers, Product Manager and Designer)

• Contribute to requirements review and work closely with PM to design and plan new features implementation

• Participate to Back-End Engineering Chapter and contribute to global architecture decisions

Requirements

• Minimum of 7 years in a Software Development role

• Exceptional coding skills and command of either Java and Spring Boot or Python and one of its framework, preferably FastAPI

• Experience designing and implementing micro-services

• Knowledge in API design with REST, gPRC, GraphQL and API documentation with OpenAPI, Swagger

• Experience with various data store, streaming and caching solutions (SQL and NoSQL databases, Redis, MQ, Kafka, ElasticSearch)

• Ability to draw and document technical solutions prior to implementation

• Professional proficiency in written and spoken English

Preferred Skills

• Experience working on a SaaS platform, or at least a custom built Product

• Proven knowledge of Online Payment, HRIS, Payroll or Invoicing domains

• Use TDD by default

• Strong sense of Security and Application Performance

• Strive to solve complex problems with simple solutions

• Take ownership in what you do and always look for improvements

• Set high standards for others and for yourself

Why Join Us

• Growing international Engineering team on two continents (Asia and Europe), working on in-house product

• Chance to contribute to cutting-edge projects and technologies

• Work alongside other talented Engineers, in an environment fostering collaboration, personal development, technical excellence and continuous improvement

• Competitive compensation package and comprehensive benefits

• Continuous learning and development opportunities

If you're passionate about building high quality software and enjoy working in a supportive team environment, we encourage you to apply and become a valuable part of our Product and Engineering team.

What it's like working at Horizons

Our service & product. We're a technology company, not an accountancy, payroll provider, recruitment firm or similar. We build a workforce management platform that allows our customers to hire the best talent in minutes, without worrying about compliance, payroll, or HR admin.

Our amazing team and environment. Working at Horizons means you're working on something very exciting: Allowing every person on the planet to have access to equal opportunities in living a fulfilled work and personal life. We believe in hiring from within and going the extra mile to retain top talent. As the company continues to grow extremely fast, you will be given the opportunity to develop and grow alongside.

Our benefits and perks. Being a Horizoneer means that you get the benefit of:

• A competitive salary

• An asynchronous working environment

• A "Remote-First" company environment (or Hybrid) - based on the nature of the job

• The ability to work from abroad for a short period of time

• Growth opportunities within the company

• We provide all new joiners with the necessary hardware to ensure you have the tools you need to succeed from day one

How to apply

Please fill out the form and upload your CV in a PDF format.

If you don’t have an up-to-date CV but you are still keen to reaching out, please feel free to add a copy of your LinkedIn profile instead.

Need help? Get in touch with us at: [email protected]

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