Senior Fullstack Developer
Senior Fullstack Developer
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Job Description
Location: Bulgaria
Contract Type: Full-time
hedgehog lab is a globally renowned digital product consultancy with two decades of experience and a reputation as true masters of our craft. Proudly operating from the heart of Northern England we are on a mission to digitally craft a better world by delivering transformative solutions that align seamlessly with strategic visions.
Our culture thrives on turning constraints into catalysts for innovation empowering our team to tackle the most complex technical challenges with confidence architecting scalable and innovative solutions that future-proof businesses. Beyond our award-winning work were also known for our Flexa-certified company culture.
Were looking for a passionate Senior Fullstack Developer who thrives in an environment where expertise curiosity and impact converge. If youre ready to help shape the future and create digital products that leave a lasting legacy wed love to hear from you.
Why this role matters:
As a Senior Fullstack Developer youll lead the delivery of robust scalable digital products across the full stack. Youll combine your frontend expertise in with backend skills in or Python to create seamless user experiences. Working closely with designers engineers and product managers youll help shape technical decisions influence architecture and contribute to hedgehog labs reputation for innovation accessibility and high client satisfaction.
What youll be doing:
- Architect and develop fullstack applications using and either or Python
- Build and maintain scalable backend services and APIs
- Champion best practices in accessibility testing performance and code quality
- Use AWS to deploy scale and monitor production environments
- Work with CMS platforms to integrate content driven functionality into digital products
- Participate in sprint rituals technical reviews and continuous improvement initiatives
- Mentor junior engineers and contribute to internal tooling and documentation
How well know youre thriving:
- You deliver high quality software that meets client goals and performs reliably in production
- You take technical ownership and drive improvements across the stack
- You build trust with clients and communicate complex ideas clearly
- You bring a proactive mindset to solving problems and refining processes
Where this role can take you:
- Opportunity to shape the technical direction of key projects
- Exposure to diverse domains across global clients
- Influence cross-functional best practices across frontend backend and cloud
- Grow into a lead or staff-level engineering role within a supportive team
Who you are:
This role could be a great fit if you have
Frontend expertise:
- Strong commercial experience with both and with a clear understanding of the features each technology offers
- Solid foundation in semantic HTML and modern CSS with experience using component libraries such as ChakraUI and maintaining design systems via tools like Storybook
- Robust knowledge of JavaScript and ES6 fundamentals including functional programming concepts and modern syntax
- Extensive experience developing at scale with TypeScript including best practices for type safe applications and maintainable application architecture
- Deep understanding of core React principles including functional components hooks local and global state management and the rules of React
- Strong grasp of rendering patterns including client-side rendering (CSR) and server-side rendering (SSR) as used in frameworks like
- Hands-on experience with asynchronous state management particularly using tools like React Query
- Desirable: Familiarity with runtime validation libraries such as Zod or similar
- Proactive approach to accessibility with awareness of WCAG standards and commitment to inclusive design
- Experience with unit testing using Vitest and an understanding of visual regression testing workflows in CI/CD
- Excellent cross-functional communication skills with the ability to collaborate effectively across design product backend delivery and client-facing teams
- Actively contributes to team culture offering thoughtful opinions and engaging in frontend engineering discussions and decision-making
Backend skills:
- Experience building APIs and backend services in or Python
- Understanding of RESTful architecture and API integrations
- Familiarity with authentication session management and database access patterns
Cloud & CMS:
- Working knowledge of AWS services (e.g. Lambda S3 API Gateway RDS)
- Experience integrating or working with modern CMS platforms (e.g. Contentful Sanity Strapi or similar)
- Comfortable working with Git CI/CD pipelines and modern DevOps tooling
Note: Research shows that women and individuals from underrepresented backgrounds often refrain from applying to positions unless they meet all the specified criteria. If you believe you possess the necessary qualities for this role but do not fulfil every requirement dont hesitate to apply. We actively encourage you to showcase your skills and what you can contribute.
What to expect from our interview process
We aim to make our process transparent inclusive and respectful of your time:
Stage 1 - Intro Call with a member of the Talent team Holly (30 minutes Google Meet)
Stage 2 - A technical Interview including a live coding task with our Engineering Manager Steven (60 minutes Google Meet)
Stage 3 - People and Values Interview with Steven (45 minutes Google Meet)
Well keep you informed at every step.
Why join us at hedgehog lab
At hedgehog lab weve built a workplace where people genuinely enjoy what they do and who they do it with.
Were proud to be:
Rated #1 in the UK on Clutch for mobile development
A Great Place to Work! 93% of our team said so
Flexa-certified with an 85% FlexScore for flexible working
Holders of the Advanced Good Work Pledge in the North East
But culture goes beyond certifications. Were a team that values trust autonomy and inclusion. Whether youre working from our Newcastle HQ home or a caf we support what works for you. Weve created an environment where neurodiverse LGBTQ and underrepresented voices are celebrated and where every person can be their authentic self.
Read what our team says on Glassdoor.
What we offer:
How we support your growth
- Annual personal development budget
- Career frameworks and coaching support
- Impact Days 5 days a year to spend on learning volunteering or making a difference in ways that matter to you
How we support your wellbeing
- 2 wellbeing days a year (in addition to leave)
- Free therapy with Spill
- Bupa health cash plan (UK)
- Wellbeing budget
- Multisport card (Bulgaria)
- Bippit (UK) access to a financial coach tools and resources to support your money goals
How we stay connected
- Monthly payday socials
- Annual summer & Christmas parties
- Celebrations for cultural and team milestones
How we support your work/life balance
- Work from anywhere: home office or hybrid
- Flexa-certified employer with 85% FlexScore
- Enhanced parental policies
- 36 days holiday (UK) 30 days (Bulgaria) including bank/public holidays
- Open to alternate working patterns to suit you
Diversity & inclusion statement
We strongly believe that having diversity within our team is integral to doing our best work and creating the most innovative products for our customers. We encourage people from underrepresented backgrounds to apply to our roles.
Were a family-friendly employer with a culture based on trust autonomy and flexibility. With a current 85% FlexScore were learning as we go. By listening to our team and always asking for feedback we can continue to improve and offer a working environment worthy of attracting the most creative and dedicated people in technology.
If you require any adjustments to submit an application for a vacancy or if you require any reasonable adjustment should you be invited to interview please let us know.
For any questions about this role or future opportunities please contact Holly Orange Senior Talent Acquisition Adviser at or
Employment Type
Full Time
