Senior Fullstack Engineer

Senior Fullstack Engineer page is loaded Senior Fullstack Engineer Apply locations London time type Full time posted on Posted 30+ Days Ago job requisition id REQ_ Believ: ABOUT US

At Believ, formerly known as Liberty Charge, we believe sustainable transport should be accessible to everyone. We're a Charge Point Operator (CPO) on a mission to create the UK's most reliable electric vehicle charging network that doesn't cost the earth and leaves no one behind.

We work closely with local authorities and businesses to deliver reliable, high quality charging networks at pace, at scale and at zero cost.

We offer all the advantages of being a scale-up business, but with the added security and long-term backing from well-known parents - Liberty Global (who also own our delivery partner, Virgin Media O2) and Zouk Capital (who manage the Government's Charging Investment Infrastructure Fund).

You'll be joining this exciting journey at the start of our scale-up phase, and work with us to hit the ambitious targets our shareholders have set. You'll become part of a passionate and supportive team in a fast-paced, dynamic and result-driven environment.

About the role

We are seeking an experienced Senior Software Engineer (Full Stack/Backend) to lead the development of our in-house Charge Point Management System (CPMS) and customer-facing app and web portal. Reporting into the Head of Engineering, this role will be responsible for enhancing these platforms to achieve feature parity with the incumbent SaaS solution. Following the migration, the focus will be on designing and implementing innovative features to create a market-leading, scalable, and secure platform.

Key responsibilities: Full Stack Development:

• Develop scalable and secure applications using React.js and TypeScript on the frontend and Python with FastAPI on the backend.
• Design and implement reusable, modular code for both client and server-side components.

API & Microservices Design:

• Define and build RESTful APIs and microservices using FastAPI that are efficient, secure, and scalable.
• Create data models with SQLAlchemy for seamless database interaction.

System Performance & Reliability:

• Conduct performance profiling and debugging to optimize system speed and reliability.
• Use containerization tools like Docker for scalable deployments.

OCPP/OCPI Libraries:

• Integrate OCPP/OCPI protocols into the CPMS to enable seamless communication with charging hardware and integration with third-party services like EV roaming and payment service providers.

Collaboration & Mentorship:

• Partner with product managers and designers to define technical requirements and ensure alignment with business goals.
• Mentor junior developers, providing guidance on best practices and code reviews.

Continuous Improvement:

• Stay updated with industry trends and implement improvements to ensure the system remains cutting-edge.
• Explore new tools & libraries which can improve the system, building prototypes to test
• Integrate feedback from customers into the product, and define and deliver metrics to improve the product

About you

At Believ, we are building a culture that attracts and retains the best talent. We are a dedicated and high-performing team, accustomed to working at pace in an ever-evolving industry, and we are looking for people who are as passionate as us about cutting carbon emissions and providing cleaner air for all. The successful candidate will have the following attributes and skills:

Knowledge & Experience:

• Proven track record of delivering scalable and secure applications.
• Experience working with cloud-based environments, particularly AWS.
• Familiarity with performance optimization and debugging tools.
• Knowledge of database design principles and SQL optimization.

Engineering Mindset

• Ability to understand and consider the broader business context and long-term implications of technical decisions.
• Willingness to take ownership, innovate, and proactively seek opportunities to drive impact beyond immediate tasks.
• Strong focus on delivering solutions that align with business goals and address real-world challenges effectively.
• Commitment to delivering exceptional user experiences by prioritizing customer needs and feedback throughout the development process.
• Demonstrate enthusiasm, resilience, and a can-do approach to tackling challenges and driving success.

Skills & Abilities:

• Expertise in Python, FastAPI, SQLAlchemy, and React.js.
• Proficiency with containerization tools like Docker and infrastructure-as-code tools such as Terraform.
• Familiarity with OCPP/OCPI protocol integration.
• Experience designing scalable APIs and microservices.
• Excellent communication skills and a collaborative mindset.

Benefits

• Competitive salary and bonus scheme
• 25 days' annual leave, plus the usual 8 UK Bank Holidays and the option to purchase up to 5 additional days per year
• Access to wellbeing and mental health benefits such as the Calm app, personal medical insurance, critical illness cover, dental, optical & travel insurance, income protection and life assurance
• Pension contribution matched up to 10%
• Access to our car benefit scheme and cycle to work scheme
• Access to our online learning platform to continue to develop and grow your career with us.
• 24 hours a year Volunteer Time Off to support causes that are important to you
• Virgin Media / O2 discounts and offers
• Access to VIP Arena Suites at the O2 Arena (London) and First Direct Arena (Leeds)
• Enhanced parental leave policies

This perk can only be availed for the following calendar year by employees who started before 1st December

Location

The business is currently based in our office in Southwark. The position is full time, hybrid with 3 days (Tuesday, Wednesday & Thursday) based in the office. Believ is an equal opportunity employer. We embrace diversity and are committed to creating an inclusive environment for our people.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

Similar Jobs (2) Senior Backend Engineer locations London time type Full time posted on Posted 30+ Days Ago Site Reliability Engineer locations London time type Full time posted on Posted 30+ Days Ago

We're building Tomorrow's Connections Today, bringing people together through the power of our technology.

Liberty Global is a world leader in converged broadband, video and mobile communications and an active investor in cutting-edge infrastructure, content and technology ventures.

With our investments in fibre-based and 5G networks we play a vital role in society, currently providing over 85 million fixed and mobile connections and rolling out the next generation of products and services, while readying our networks for 10 Gbps and beyond.

We're creating national champions, combining the best broadband and mobile networks under brands such as Virgin Media-02 in the UK, VodafoneZiggo in The Netherlands, Telenet in Belgium, Sunrise in Switzerland, Virgin Media in Ireland and UPC in Slovakia.

Liberty Global Ventures, our global investment arm, has a portfolio of more than 75 companies and funds across content, technology and infrastructure, including strategic stakes in ITV, Univision, Plume, Lionsgate and the Formula E racing series.

Our scale enables us to transfer knowledge and expertise across our operations and investments, creating a dynamic family of brands united in the pursuit of innovation and excellence.

And we're prioritising diversity, equity and inclusion in our workplace and communities, while reducing our impact on the environment. We are using technology as a force for good; for our people, our partners and the planet.

OUR FUTURE OUTLOOK IS EXCITING, TOGETHER

Privacy Policy

The data included in the candidate account (eg. your name, e-mail address and CV; hereafter collectively "your data") will be processed by Liberty Global as the Controller for the purposes of candidate selection, placement and employment.

Your data can also be shared with Liberty Global plc and/or its majority owned subsidiaries (collectively, the "Liberty Global Group", "we" or "us") and third party organizations providing recruitment, selection, placement and employment services.

Such third parties will use candidate information only in connection with such services, and applicable law.

Your data will be retained for the period of up to 1 year after closing the selection process, after which it will be deleted.

You have: the right to access your data or ask for a copy of the personal data that we hold about you and, if such personal data is inaccurate or incomplete, to request the rectification, erasure or blocking of such personal data. You have the right to object to the processing; and the right to lodge a complaint at a supervisory authority or a court of law in accordance with applicable laws.
. click apply for full job details