Full-Stack API Developer
New
H
HypoportFinance
100% remote.ContractSenior
SalaryB2B – up to 45 EUR/h.
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Job Details
- Languages
- Fluent German (B2+/C1) – mandatory for documentation & daily communication.
- Required Skills
- Full Stack DevelopmentJavaJavascript
Requirements
- Have strong experience with Java.
- Have experience developing REST APIs and designing APIs.
- Demonstrate excellent full-stack JavaScript skills.
- Have proven experience as a Full-Stack Developer.
- Have a background in agile software development.
- Be able to analyze, structure, and optimize existing code.
- Be fluent in German at B2+/C1 level for documentation and daily communication.
- Communicate proactively and work collaboratively as a team member.
- Experience in regulated industries such as banking, insurance, or energy is a plus.
- IT security, firewall, or networking knowledge is a plus.
- Experience with document management systems is a plus.
- Experience with integration-heavy or interface-driven projects is a plus.
- Experience in the German financial sector is a plus.
Responsibilities
- Develop and integrate REST API interfaces into existing systems.
- Implement technical requirements within a large-scale integration and brokerage project.
- Build full-stack features in the JavaScript ecosystem across frontend and backend.
- Collaborate with internal and external developers in a distributed agile setup.
- Analyze and evaluate the existing codebase and contribute to architectural decisions.
- Translate business requirements into technical solutions and maintain documentation.
- Work closely with team leads, business units, and stakeholders.
- Support onboarding topics such as firewall, whitelisting, and internal processes, with client guidance.
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