Referso Jobs

Design, build, and maintain scalable full-stack web applications
Develop modern user experiences using React.js, Next.js, TypeScript, JavaScript, HTML5, and CSS
Architect and deliver RESTful APIs, microservices, and backend services using Node.js, Python, and Java Spring Boot
Collaborate with product managers, designers, and engineering teams to translate business requirements into technical solutions
Optimize application performance, scalability, reliability, and maintainability across frontend and backend systems

Requirements

Bachelor's degree
Nice to have: React.js
Nice to have: Next.js
Nice to have: TypeScript
Nice to have: JavaScript

Skills

React.js Next.js TypeScript JavaScript HTML5

Frontend Developer

Vestas GmbH · Posted Nov 6, 2026

Open

Porto, Porto, Portugal
Hybrid
Full-time · Mid
4+ years

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As a Frontend Developer, you will be part of a product-driven team, contributing to the design, development, and continuous evolution of scalable and reliable digital solutions. Frontend development will be at the core of your role, but we value developers with a broad engineering mindset who are curious about the full technology stack.

Responsibilities

Design, develop, and maintain scalable web applications, translating product and design requirements into high-quality solutions
Take direct ownership of frontend development while being comfortable contributing across the technology stack when it creates value for the product
Collaborate closely with designers, backend developers, product owners, and other specialists to deliver intuitive and consistent user experiences
Contribute to APIs, integrations, backend services, and cloud-based solutions where relevant to the product and your experience
Continuously improve code quality and application performance, applying best practices for testing, accessibility, security, and maintainability

Requirements

Bachelor's degree
Master's degree
Computer Science
Software Engineering
Nice to have: APIs

Skills

Angular TypeScript component-based architecture

System Analyst

Hospital Authority · Posted Nov 6, 2026

Open

Hong Kong
Full-time · Mid
HK$65K–HK$89K per month
6+ years

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We are seeking for a skilled System Analyst to join our innovation and development team.

Compensation

Pay: HK$64,518 - HK$88,971 (HMPS Point 1-8) per month including Monthly Allowance Up to 15% of total basic salary (after deducting the contribution of Mandatory Provident Fund by Hospital Authority) as end-of-contract gratuity may be offered to contract staff upon completion of the contract subject to satisfactory performance.

Responsibilities

Oversee the delivery of IT services, focusing on system analysis and process optimization.
Lead the project team in the design, development and implementation of IT projects, ensuring alignment with organizational goals.
Lead the process transformation initiatives and service improvement programs to enhance user experience and operational effectiveness.
Guide and mentor junior staff, ensuring adherence to best practices and service standards.
Conduct quality assurance reviews in accordance with established guidelines to ensure system reliability and performance.

Requirements

Degree in Computer Science or relevant disciplines
Nice to have: AI solutions
Nice to have: business processes
Nice to have: documentation
Nice to have: continuous learning

Skills

system analysis process optimization

Applications Development Engineer (Java)

GXO Logistics · Posted Nov 5, 2026

Open

High Point, North Carolina, United States
Full-time
$105K–$105K per year
1+ years

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Provide in-depth technical web application programming expertise that meets technical specifications and business requirements.

Compensation

$105,000/yr

Responsibilities

Provide in-depth technical web application programming expertise that meets technical specifications and business requirements
Research business problems and propose software solutions
Mentor junior programmers in the department
Provide estimates and create functional and detailed design specifications for programs to be developed
Convert system designs and technical specifications into program code for complex applications

Requirements

Bachelor’s degree in Computer Science or related field

Skills

Windows JavaScript TypeScript Python/React Java 11 Spring boot Fast Api

Backend-Entwickler (Java & Python, Microservices) (m/w/d)

OKAPI:Orbits GmbH · Posted Nov 5, 2026

Open

Braunschweig, Lower Saxony, Germany +2 more
Hybrid
Full-time · Mid
2+ years

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Design and maintain asynchronous scalable backends for space mission design, SSA, space traffic management, and flight dynamics using Python and Java Spring Boot.

Locations (3)

Braunschweig, Lower Saxony, Germany
Barcelona, Catalonia, Spain
Madrid, Madrid, Spain

Responsibilities

Design, develop, and maintain asynchronous backend systems based on microservices (Python and Java Spring Boot).
Implement and optimize data processing and distribution pipelines for large volumes of orbital, telemetry, and mission data.
Design and maintain message-based communication structures (e.g., RabbitMQ).
Collaborate with aerospace scientists and engineers to translate mission requirements into scalable software solutions.
Share responsibility for backend architecture with a focus on performance, fault tolerance, and maintainability.

Backend Engineer

Corintis · Posted Nov 5, 2026

Open

Lausanne, Vaud, Switzerland
Full-time
4+ years

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Build and operate backend services for Glacierware, a platform for designing and simulating microfluidic cooling for high‑power chips.

Responsibilities

Design, build, and maintain REST and WebSocket APIs used by the Glacierware application.
Extend the scheduler, monitors, and task workers that coordinate simulation and optimization jobs on external compute resources.
Support asynchronous workflows, including job tracking, parameter sweeps, and project accounting.
Design and evolve MongoDB document schemas and change‑stream pipelines that keep the application up to date.
Maintain and improve the Python/FastAPI service alongside the Java services.

Skills

Java Spring Boot Python FastAPI MongoDB REST WebSocket asynchronous workflows security architecture

Développeur Full Stack Java Senior (H/F)

Talan · Posted Nov 5, 2026

Open

Lille, Hauts-de-France, France +1 more
On-site
Full-time · Senior
6+ years

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Développeur Full Stack Senior (F/H) capable de prendre en charge l'intégralité du cycle de vie des applications de l'un de nos clients finaux, de la conception à la mise en production, tant sur un front-end que le back-end.

Locations (2)

Lille, Hauts-de-France, France
Amiens, Hauts-de-France, France

Responsibilities

Participer activement aux cérémonies Agiles et à l'amélioration des pratiques de l'équipe.
Collaborer étroitement avec les UX/UI, les Ops, les architectes, et les développeurs.
Concevoir et développer de nouvelles fonctionnalités dans les applications.
Développer des API REST performantes et des microservices en Java avec les frameworks Spring Boot/Spring.
Prendre en charge l'intégration avec les bases de données (PostgreSQL, MongoDB) et les systèmes d'information existants.

Requirements

Diplôme d'ingénieur en informatique ou équivalent
Nice to have: Copilot
Nice to have: Github Copilot

Full-Stack Developer

Vamonos IT · Posted Nov 4, 2026

Open

Full-time · Senior
5+ years

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The role involves designing, developing, modernizing, and maintaining enterprise-level software applications for federal government operations using Java Spring Boot, Oracle Exadata, and Red Hat OpenShift.

Compensation

Competitive salary and benefits.

Responsibilities

Design, develop, test, deploy, and maintain enterprise full-stack applications using Java Spring Boot, RESTful APIs, and modern front-end frameworks such as React or Angular.
Analyze legacy source code, including C/C++ and Oracle-based applications, to support system modernization and the translation of business requirements into technical user stories.
Perform full-lifecycle software development activities, including solution design, application development, unit testing, and system testing.
Develop high-quality, maintainable code that satisfies approved user stories, technical requirements, and acceptance criteria.
Design, develop, and maintain scalable microservices using Java Spring Boot and RESTful APIs.

Requirements

Bachelor's degree in Computer Science
Information Systems
or related technical discipline
Nice to have: C/C++
Nice to have: Pro*C

Skills

Java Spring Boot RESTful APIs

Lead Full Stack Engineer

UnitedHealth Group · Posted Nov 6, 2026

Open

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Lead end-to-end design, development, and delivery of enterprise mobile and backend applications

Responsibilities

Lead end-to-end design, development, and delivery of enterprise mobile and backend applications
Architect and develop cross-platform mobile applications using React Native for iOS and Android
Design and build scalable Java Spring Boot microservices, APIs, and backend integrations
Drive technical strategy, solution architecture, code quality, and engineering best practices
Lead code reviews, technical design sessions, and mentor engineering teams

Skills

React Native Java Spring Boot AI tools CI/CD cloud-native microservices API development code reviews technical design mentoring Claude Code Codex GitHub Copilot

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