Backend Developer

Founders Factory; London; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A tech-focused startup in London is seeking a skilled Software Engineer to join their team. The role involves integrating telecom systems and collaborating with product teams to design high-quality solutions. Ideal candidates will have at least 3 years of experience, strong proficiency in backend technologies, and excellent communication skills. The company offers equity, generous PTO, and a hybrid work environment.

Benefits

Equity Package: 0.2%–0.8%

25 days annual leave plus bank holidays

Hybrid setup with office collaboration

Career growth opportunities

Supportive team culture

Qualifications

• Minimum 3 years of professional experience as a software engineer.
• Strong ability to design, code, test, and maintain applications.
• Excellent verbal and written communication skills.

Responsibilities

• Integrate telecom systems onto the Bondio platform.
• Evaluate REST APIs from telecom partners.
• Collaborate with the product team to gather project requirements.

Skills

Backend technologies proficiency

API development

Problem-solving skills

Collaboration

Attention to detail

Job description

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Bondio is the first connectivity marketplace. Through partnership with the world's leading carriers, Bondio provide mobile connectivity including 4G/5G as well as Voice to anyone.

Bondio is backed by Deutsche Telekom, Telefonica and other major actors of the telecommunication industry. We are on a mission to open up connectivity to the world.

The telco industry has not been disrupted since its creation, but now with the rise of eSIM, for the first time in telco history, there is an opportunity to change the status quo.

Responsibilities

• Integrate telecom systems onto the Bondio platform, ensuring seamless interaction with existing infrastructure.
• Evaluate REST APIs from telecom partners to determine compatibility with Bondio systems and assess their ability to meet business requirements.
• Collaborate with the product team to gather and clarify project requirements, and deliver end-to-end solutions, including technical design, code implementation, testing, deployment, and ongoing maintenance.
• Resolve customer queries and technical issues, providing timely and effective solutions when needed.
• Participate in on-call support duties as required, ensuring critical issues are addressed quickly and effectively.
• Improve the technical architecture of the platform, implementing changes to enhance scalability, flexibility, and robustness.
• Ensure high code quality, following best practices and maintaining a clean, well-documented codebase.
• Design and implement server-side APIs, data models, and business logic
• Build reusable and modular backend components, promoting code reusability, maintainability, and scalability.
• Perform thorough testing, debugging, and troubleshooting to ensure high-quality deliverables and a smooth user experience.
• Stay up-to-date with emerging web development trends, frameworks, and best practices, and proactively recommend improvements to enhance development processes.
• Participate in code reviews, providing constructive feedback to team members and ensuring adherence to coding standards and best practices.
• Communicate project progress, challenges, and solutions effectively to both technical and non-technical stakeholders.
• Contribute to the continuous improvement of development processes, methodologies, and tools to enhance team productivity and product quality.

Requirements

You’re the engineer we’re looking for if you have:

• Minimum 3 years of professional experience as a software engineer, with a proven track record of delivering high-quality software solutions.
• Proficiency in backend technologies, with hands-on experience.
• A strong ability to design, code, test, and maintain applications, ensuring high-quality, scalable solutions.
• Experience with building customer-facing APIs, with a focus on user-centric development and high-availability architectures.
• Comfort working with tight deadlines and delivering high-impact projects with efficiency and precision.
• Excellent verbal and written communication skills, with the ability to clearly articulate complex technical ideas to both technical and non-technical stakeholders.
• A collaborative mindset and experience working in remote-first teams, where self-direction, responsibility, and communication are key to success.
• A passion for solving problems and an ability to troubleshoot and debug complex issues quickly.
• A business-focused approach to software development, always keeping customer needs and project goals at the forefront.
• A sharp eye for detail, especially when it comes to error handling, UX implementation, and ensuring a flawless user experience.
• A growth mindset, always eager to learn new technologies, improve your skills, and stay ahead of the curve in the software development space.

What We Offer

• Equity Package: 0.2%–0.8% to grow with us.
• Paid Time Off: 25 days annual leave plus bank holidays.
• Hybrid Setup: Flexibility with in-office collaboration.
• Career Growth: Shape the future of Bondio as an early team member.
• Collaborative Culture: A close-knit, ambitious, and supportive team.

Interview Process

• Apply: Send your resume, LinkedIn profile, and 2 references to [emailprotected] . Optional: A short 1–2 minute video introduction is highly encouraged.
• Behavioral Interview (1 hour): Cultural fit and motivations.
• Technical Interviews (2–3 rounds): Hands-on problem solving.