Senior front end developer html5, css3, javascript Work, Jobs in Remote (with Salaries)

Volunteer Backend Engineer for UK Charity Native App
Nurture The Children International UK —Remote
- Part-time
- Remote
- Azure
- Java
- AWS
- Flexible schedule
- Referral programme
Quick apply
7h
AI Forward Deployed Software Engineer
XPS Pensions Group —Remote
- Full-time
- Remote
- Azure
- Java
- C++
- Employee discount
- Referral programme
6d
Junior Business Software Engineer
SECOM PLC —Remote
- Full-time
- Remote
- SQL
- JavaScript
- APIs
- Employee discount
Quick apply
4d
Application Support Engineer — Blockchain Security & AI Automation
Crypto.com —Remote
- Full-time
- Remote
- Computer Science
- Engineering
- AI
- Annual leave
Quick apply
Technical Support Engineer
Saviynt —Remote
- Full-time
- Remote
- Oracle
- Java
- SQL
System Integrator
Entrust —Field Based
- Full-time
- Hybrid work
- Project management
- JavaScript
- Computer networking
Head of Product Support
The Adaptavist Group —Remote
- Full-time
- Remote
- Management
- Java
- AWS
- Annual leave
- Flexible schedule
Quick apply
5d
Copy of Senior Software Engineer (Node.js)
Insights Learning & Development Ltd —Remote
- Full-time
- Remote
- AWS
- JavaScript
- Communication skills
- Employee assistance programme
- Employee discount
Quick apply
6d
Technical Consultant - IAM/IGA
Saviynt —Remote
- Full-time
- Remote
- Oracle
- Java
- SQL
Solution Architect, UK
Zinier —Remote
- Full-time
- Remote
- English
- Project management
- JavaScript
Quick apply
Full Stack Engineer - MarTech
ZEPZ TECHNOLOGY SERVICES LIMITED —Remote
- Remote
- Java
- AWS
- AI
- Annual leave
- Employee discount
Professional Services Architect EMEA
SnapLogic —Remote
- Full-time
- Java
- SQL
- AWS
Quick apply
Boomi Integration Platform Developer
Boomi —Remote
- Remote
- Oracle
- English
- Java
16h
Systems Integrator
Entrust —Field Based
- Full-time
- Hybrid work
- Spanish
- Salesforce
- JavaScript
4d

Related jobs to explore

Based on your search for senior front end developer html5, css3, javascript

Volunteer Backend Engineer for UK Charity Native App
Nurture The Children International UK —Remote
Supporting our education, feeding, water, and health programs provides individual sponsors a simple way to support the world’s most vulnerable children and put…
Quick apply
7h
Junior Business Software Engineer
SECOM PLC —Remote
We are currently seeking a Junior Business Software Engineer to work in a hybrid capacity (home/office). We are committed not only to protecting people and…
Quick apply
4d

I want to receive the latest job alerts for senior front end developer html5, css3, javascript in remote

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Explore jobs in more locations

senior front end developer html5, css3, javascript jobs near remote

Volunteer Backend Engineer for UK Charity Native App

Nurture The Children International UK -
Remote

Quick apply

Job details

Part-time | Volunteer
7 hours ago

Benefits

Flexible schedule
Referral programme

Qualifications

Spring Boot
Authentication
Kotlin
Azure
Go
Node.js
iOS development
iOS
NoSQL
Git
Google Cloud Platform
MongoDB
Java
AWS
Docker
PostgreSQL
New Relic
Back-end development
REST
Django
GitHub
APIs
GraphQL
Heroku
Python
Spring framework
MySQL

Full job description

Volunteer Backend Engineer – Native Mobile App

Organisation:
Nurture the Children International– a registered charity in England and Wales (Charity number: 1173351) dedicated to the fight against poverty globally.

Supporting our education, feeding, water, and health programs provides individual sponsors a simple way to support the world’s most vulnerable children and put an end to child hunger, poverty, and exploitation.

Location:
Fully remote / home-based (UK time zone preferred for easier collaboration)
Virtual meetings via Zoom / Microsoft Teams / Slack

Hours:
Flexible – approximately 4–10 hours per week (arranged around your availability)
Minimum commitment of 6–12 months preferred to support meaningful progress and hand-over

Role Purpose:
To design, build, maintain and secure the backend infrastructure that powers our native mobile app (iOS and Android), ensuring reliable data services, secure user authentication, smooth API performance, and compliance with UK data protection laws (UK GDPR). Your work will directly enable thousands of users / beneficiaries to access critical features such as [e.g. donation processing / resource libraries / peer support / progress tracking / emergency alerts].

Main Responsibilities:

Design, develop and maintain robust, scalable RESTful (or GraphQL) APIs that connect the native mobile apps to backend services
Implement and manage authentication & authorisation flows (e.g. JWT, OAuth2, Firebase Auth, or similar)
Build and optimise data models, database schemas, and queries for user data, content, analytics, etc.
Integrate with third-party services (e.g. payment gateways like Stripe, push notifications, cloud storage, analytics tools)
Ensure high availability, performance and security of the backend (rate limiting, input validation, encryption, vulnerability scanning)
Handle data migration, backups, monitoring, error logging and basic DevOps tasks (CI/CD pipelines if applicable)
Collaborate remotely with frontend/mobile developers, product owners / trustees, and any external consultants via Git, shared docs, and regular stand-ups / sprint reviews
Write clean, documented, testable code and contribute to code reviews
Help maintain compliance with UK GDPR, Charity Commission expectations on data handling, and any sector-specific regulations (e.g. safeguarding for vulnerable users)
Document architecture, APIs (e.g. OpenAPI/Swagger), deployment processes and troubleshooting guides

Tech Stack (Current or Target – we can discuss alignment with your expertise):

Backend language/framework: Node.js (Express/NestJS), Python (FastAPI/Django), Java (Spring Boot), Go, or similar
Database: PostgreSQL, MySQL, MongoDB, Firebase Firestore, Supabase, or equivalent
Cloud / hosting: AWS, Google Cloud, Azure, Heroku, Railway, Render, or Firebase (cost-effective options preferred)
Other tools: Docker (nice-to-have), Git/GitHub, Postman/Swagger for API testing, Sentry/New Relic for monitoring

Skills and Experience (Essential):

Proven experience building and maintaining production backend services / APIs (commercial, open-source or personal projects)
Strong knowledge of at least one modern backend language/framework (Node.js, Python, Java/Kotlin, Go, etc.)
Experience with relational or NoSQL databases and writing efficient queries
Understanding of REST API design principles, authentication patterns, and basic security best practices
Comfortable with Git version control and remote collaboration tools (GitHub, Slack/Teams, etc.)
Self-motivated, reliable, and able to work independently while communicating progress clearly
Commitment to writing readable, maintainable code

Desirable (but not essential):

Previous work on mobile app backends (especially native iOS/Android integrations)
Experience with cloud platforms (AWS, GCP, Azure, Firebase) and serverless architectures
Familiarity with CI/CD, containerisation (Docker), or infrastructure-as-code
Knowledge of UK GDPR / data protection in charities / non-profits
Experience contributing to open-source projects or volunteering in tech-for-good
Interest in our mission area (e.g. health, education, environment, humanitarian)

What We Offer:

Direct, high-impact contribution to our charitable mission through technology
Opportunity to apply / deepen backend engineering skills in a real-world, user-focused product
Supportive remote environment with regular check-ins, code reviews, and feedback
Flexible hours – work when it suits you
Recognition of your contribution (e.g. credits in app/about page, thanks in annual report/website – with consent)
Potential professional reference after sustained contribution (6+ months)
Out-of-pocket expenses reimbursed per our volunteer policy (very limited – mainly specialist tools if pre-agreed)

Job Types: Part-time, Volunteer

Benefits:

Referral programme

Work Location: Remote

Quick apply

Refine Your Search

senior front end developer html5, css3, javascript jobs in remote

Volunteer Backend Engineer for UK Charity Native App

AI Forward Deployed Software Engineer

Junior Business Software Engineer

Application Support Engineer — Blockchain Security & AI Automation

Technical Support Engineer

System Integrator

Head of Product Support

Copy of Senior Software Engineer (Node.js)

Technical Consultant - IAM/IGA

Solution Architect, UK

Full Stack Engineer - MarTech

Professional Services Architect EMEA

Boomi Integration Platform Developer

Systems Integrator

Related jobs to explore

I want to receive the latest job alerts for senior front end developer html5, css3, javascript in remote

Related Searches

Explore jobs in more locations

Jobseeker tools

Employer Tools

Browse

Stay Connected