UNWB Full-Stack Web Developer, Multiple positions

Job categories IT

Vacancy code VA/2025/B0012/30897

Level ICS-9

Department/office MP, PG, Procurement Group

Duty station Home based

Contract type International ICA

Contract level IICA-1

Duration Open-ended, subject to organizational requirements, availability of funds and satisfactory performance

Application period 21-Oct-2025 to 02-Nov-2025

Applications to vacancies must be received before midnight Copenhagen time (CET) on the closing date of the announcement.

Please note that UNOPS will at no stage of the recruitment process request candidates to make payments of any kind.

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Background Information - Job-specific

Organization:

The United Nations Office for Project Services (UNOPS) is an operational arm of the United Nations, supporting the successful implementation of its partners' peacebuilding, humanitarian and development projects around the world. UNOPS supports partners to build a better future by providing services that increase the efficiency, effectiveness and sustainability of peace building, humanitarian and development projects. Mandated as a central resource of the United Nations, UNOPS provides sustainable project management, procurement and infrastructure services to a wide range of governments, donors and United Nations organizations.

The UN Web Buy team (UNWB) is part of the UNOPS Procurement Group. We provide procurement services to UNOPS offices globally and to external clients (IGOs, NGOs, governments) through unwebbuyplus.org - UNOPS e-commerce solution. The solution is built and operated by the UNWB team.

The UNWB Full-Stack Web Developer will be responsible for developing high-quality, secure, scalable, and maintainable code to enhance and extend the UNWB platform. The successful candidate will be working as part of the team and under the supervision of UNWB Application Architect.

Functional Responsibilities

Under the supervision of the UN WebBuy Application Architect, the UN WebBuy Full...

Under the supervision of the UN WebBuy Application Architect, the UN WebBuy Full-Stack Web Developer will be responsible for developing high-quality, secure, scalable, and maintainable code artifacts for the UN WebBuy platform. They will also be responsible for troubleshooting production issues and providing support to the end users.

1. Develops the UNWB platform

UNWB Full Stack-Stack Web Developer will work independently to develop system features and improvements according to technical specifications and requirements received from the UNWB Application Architect.

Designs and implements features and system improvements using:
- .NET/C#
- SQL Server
- Entity Framework
- JavaScript, HTML, CSS
- Other technologies that may be adopted by the team
Develops and maintains high-performance, scalable, and secure code
Creates detailed technical specifications for complex features
Implements best practices for code quality and performance optimization
Maintains comprehensive technical documentation

2. Ensures Quality and Testing Standards

UNWB Full Stack-Stack Web Developer will be responsible for upholding the quality standards set by the UNWB Application Architect.

Works closely with QA person to resolve issues
Implements automated testing frameworks
Develops comprehensive test strategies for new features
Participates in code reviews
Implements and maintains CI/CD pipelines
Troubleshoots complex technical issues
Monitors and optimizes system performance

3. Contributes to Technical Excellence

UNWB Full Stack-Stack Web Developer will participate in technical discussions and brainstorming sessions. They will independently carry out research into specific areas and prepare their findings and recommendations.

Researches and evaluates new technologies
Proposes system improvements
Contributes to technical design discussions
Maintains high standards for code quality and development practices
Participates in architectural discussions

4. Provides User Support and Technical Troubleshooting

UNWB Full Stack-Stack Web Developer will work with the end users for support requests as assigned by UNWB Application Architect. They will also be responsible for troubleshooting and resolving system issues as needed.

Responds to and resolves complex technical support tickets from internal and external users
Investigates and diagnoses system issues across the full technology stack
Performs root cause analysis for production incidents
Creates and maintains documentation for common support issues and solutions
Implements fixes and patches for identified issues
Collaborates with the operations team to ensure minimal system downtime
Participates in on-call rotation for critical system support when required

Competencies

Treats all individuals with respect; responds sensitively to differences and enc...

Treats all individuals with respect; responds sensitively to differences and encourages others to do the same. Upholds organizational and ethical norms. Maintains high standards of trustworthiness. Role model for diversity and inclusion.

Acts as a positive role model contributing to the team spirit. Collaborates and supports the development of others.

Demonstrates understanding of the impact of own role on all partners and always puts the end beneficiary first. Builds and maintains strong external relationships and is a competent partner for others (if relevant to the role).

Efficiently establishes an appropriate course of action for self and/or others to accomplish a goal. Actions lead to total task accomplishment through concern for quality in all areas. Sees opportunities and takes the initiative to act on them. Understands that responsible use of resources maximizes our impact on our beneficiaries.

Open to change and flexible in a fast paced environment. Effectively adapts own approach to suit changing circumstances or requirements. Reflects on experiences and modifies own behavior. Performance is consistent, even under pressure. Always pursues continuous improvements.

Evaluates data and courses of action to reach logical, pragmatic decisions. Takes an unbiased, rational approach with calculated risks. Applies innovation and creativity to problem-solving.

Expresses ideas or facts in a clear, concise and open manner. Communication indicates a consideration for the feelings and needs of others. Actively listens and proactively shares knowledge. Handles conflict effectively, by overcoming differences of opinion and finding common ground.

Education/Experience/Language requirements

a. Education Master’s Degree, preferably in Computer Science, I...

Contract type, level and duration

Contract type: International ICA Contract level: IICA-1 (ICS-09) Contr...

Additional Information

Please note that UNOPS does not accept unsolicited resumes. Applications rec...

Please note that UNOPS does not accept unsolicited resumes.
Applications received after the closing date will not be considered.
Please note that only shortlisted candidates will be contacted and advance to the next stage of the selection process, which involves various assessments.
UNOPS embraces diversity and is committed to equal employment opportunity. Our workforce consists of many diverse nationalities, cultures, languages, races, gender identities, sexual orientations, and abilities. UNOPS seeks to sustain and strengthen this diversity to ensure equal opportunities as well as an inclusive working environment for its entire workforce.
Qualified women and candidates from groups which are underrepresented in the UNOPS workforce are encouraged to apply. These include in particular candidates from racialized and/or indigenous groups, members of minority gender identities and sexual orientations, and people with disabilities.
We would like to ensure all candidates perform at their best during the assessment process. If you are shortlisted and require additional assistance to complete any assessment, including reasonable accommodation, please inform our human resources team when you receive an invitation.

Terms and Conditions

For staff positions only, UNOPS reserves the right to appoint a candidate at a lower level than the advertised level of the post.
For retainer contracts, you must complete a few Mandatory Courses (they take around 4 hours to complete) in your own time, before providing services to UNOPS. For more information on a retainer contract here.
All UNOPS personnel are responsible for performing their duties in accordance with the UN Charter and UNOPS Policies and Instructions, as well as other relevant accountability frameworks. In addition, all personnel must demonstrate an understanding of the Sustainable Development Goals (SDGs) in a manner consistent with UN core values and the UN Common Agenda.
It is the policy of UNOPS to conduct background checks on all potential personnel. Recruitment in UNOPS is contingent on the results of such checks.

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APPLICATION TIPS

How to send a good application:

TOGETHER, WE BUILD THE FUTURE

UNOPS – an operational arm of the United Nations – supports the achievement of the Sustainable Development Goals (SDGs) by successfully implementing its partners’ peacebuilding, humanitarian and development projects around the world.

Our mission is to help people build better lives and countries achieve peace and sustainable development.

We are proud of our people. The UNOPS family brings together approximately 160 nationalities, represented by over 5,000 UNOPS personnel as well as some 7,800 personnel recruited on behalf on our partners. Spread across 80 countries, our workforce is rich in diversity and culture – with inclusion at its core.

We understand the importance of balancing professional and personal demands and offer several flexible working options.

Explore what we offer here.