Lead developer jobs in Barnet, greater london

At Cast from Clay, we work with organisations that make our societies better for all of us. Are you the person to lead on all things digital for clients campaigning to improve school food, to better conserve the ocean, or to protect children in war?

The job

We're looking for a digital leader. To us, that means you’ll be able to advise clients on how to align their digital presence with their organisational goals. You’ll know what good looks like, and you’ll have the interpersonal skills to explain and convince others of your views.

Ever-curious, you’re the kind of person that is always looking for opportunities to make digital deliver for clients. You'll have an instinctive sense of what will (and won't) work on various platforms (websites, data platforms, Substacks, etc.), how they should complement each other and what it means to build an engaged online audience. 

You'll have that instinct because you've done it before: you know how to set digital/design KPIs and manage a team to meet those targets; you’ve run enough website build processes to do it in your sleep, and you know how to identify things a client should do, and explain to them why they should invest in doing them.

You’ll have a number of responsibilities from day one. You’ll take over advising our largest digital clients and be responsible for supporting them in their mission. 

You’ll be the new business lead for any strategy projects that require digital infrastructure – that means identifying what needs to change, writing those ideas into proposals, and pitching them. And you will own the digital roadmap for client content-led platforms, ensuring that the content isn’t just ‘published’ but drives audience growth.

You’ll be managing a team of developers to ensure the final product delivers on the strategic vision. While you may have a technical background, it’s worth being clear that this is not a technical role and we are not looking for exclusively technical candidates.

The challenge

Our clients work in the front line of campaigning to make the world a better place. Their websites are often the first thing funders and policymakers will check to see how legitimate or credible an organisation is. Nothing kills credibility faster than a website that loads slowly, categorises content in a way that no-one outside the organisation understands, or a site where the design is just… bad.

The challenge is that too many policy websites prioritise internal audiences over external. Rather than thinking “what does policymaker X need to see?”, the question is “what do senior management want to see on the website?” This leads to websites that are an output in themselves, rather than websites that lead to outcomes.

Your job is to ensure that all our digital workstreams avoid that trap; that they prioritise outcomes (hard to do), over simple outputs (anyone can do).

What we are looking for: 

• Someone who prizes outcomes over outputs, and knows how to adapt their approach to achieve best results. 

• Clear leadership of a digital function–in a consultancy, a nonprofit, or another relevant organisation.

• A consultative approach: you’re able to identify problems, solutions and opportunities, and convince others of your point of view.

• Commercial and revenue management experience.

• Experience managing a team, and an understanding of how to get the best out of different types of people in that team.

• An understanding of the policy landscape and know how to use digital platforms to move the needle with policymakers, media, and other stakeholders.

If you feel like you don’t meet 100% of the criteria, please don’t let that stop you. If you love the sound of this role and have a strong foundation in building and growing content-led platforms across multiple digital touchpoints, we would love to hear from you.

Why us?

We’re proud to be named one of the Sunday Times Best Places to Work 2026, and we work hard to keep it that way.

The kinds of people that thrive at Cast from Clay are intellectually curious, are open to challenge, and care about the details. Most importantly, they prize clarity of thought. In today’s world we are overwhelmed with information and content. Knowing what you think and being able to explain why is, to our minds, one of the most important skills of today.

It’s worth saying that we don’t care what your political views are, as long as you have some. The team has a mix of views, and we view ideological diversity as crucial to our ability to be an effective consultancy.

What we offer

We offer a competitive benefits package for all our positions, including enhanced parental leave, sabbaticals, and training budgets.

• Office: we work from our offices in Vauxhall on Tuesdays and Thursdays. You’re welcome to use the office more frequently than that if you wish.

• Home office allowance: we’ll make a £150 contribution towards kitting out your home workspace.

• Flexible working: tell us how you work best and we’ll do what we can to make it happen – including if you want to spend time working from abroad.

• Regular team socials: we like spending time together so every few weeks we come up with ideas for things to do together. That’s included board games over pizza, ice skating, movie nights, playing a VR game together and going on llama safari at our local city farm.

• Training: you’ll get up to £200 annual training budget to spend on your professional development. 

• Pension: we will pay 5% of your salary, matching the 5% you pay, to make a total of 10% annual contributions.

• Holidays: we offer 25 days holiday per year, plus bank holidays, and we close the office over Christmas.

• Bonuses: we offer a 5% new business bonus, and a company wide bonus if annual profit targets are hit.

Interested?

If this sounds like you, please apply here with: 

1. One example of how you have used digital to deliver a real-world outcome (we aren’t interested in engagement stats/number of hits)

2. Your CV (no more than 2 pages).

We expect to receive a lot of applications for this role. To help yours stand out, please give us a couple of sentences in your email as to why you want to work at Cast from Clay. 

It’s also worth saying that we want to hear your genuine voice, so please don’t use AI to write this. Not least because there will be lots of people who will use AI, and it’s always amusing for us when a bunch of very different people all write the same thing…!

Things to note

• You need to have permission to work in the U.K. already - we cannot sponsor visas for this role.

• We are an equal opportunities employer and we are determined to ensure that no applicant or employee receives less favourable treatment on the grounds of gender, age, class, disability, religion, belief, sexual orientation, marital status, or race, or is disadvantaged by conditions or requirements which cannot be shown to be justifiable.

It’s an exciting time to join War Child. We are sector-leading in our heritage, connections and relationships across music, gaming and events, with an incredible network of supporters ready to champion our work. Backed by a talented and ambitious team, we deliver bold, creative fundraising that inspires people to take action for children affected by conflict.

This is a fantastic opportunity for a motivated and relationship-driven partnerships professional with a passion for gaming to join our Gaming team at a pivotal moment of growth. You will help grow income and impact through gaming, building relationships with developers, publishers, platforms, creators and gaming communities to deliver creative and effective fundraising partnerships.

As Gaming Partnerships Executive, you will manage and grow a portfolio of existing gaming partners, identifying opportunities to deepen engagement and maximise their involvement in War Child campaigns. You will also support new business development, helping to build a strong pipeline of prospective partners and contributing to outreach, pitching and securing new collaborations.

Working closely with the Gaming Lead and wider Philanthropy and Partnerships department, you will help shape and deliver innovative campaigns at the intersection of gaming, streaming and digital fundraising. This includes supporting key partnerships such as Jingle Jam and contributing to campaign planning and delivery across the gaming calendar.

You will act as a visible ambassador for War Child within the gaming industry, attending events, building new connections and raising the profile of our work to unlock new opportunities for collaboration and income generation.

As part of our growing Philanthropy and Partnerships department, you will work closely with colleagues across Partnerships, Communications and Digital Marketing to develop strong pitches, proposals and activations that deliver real impact for children affected by war.

The team regularly comes together in our London office for collaboration, meetings and relationship-building, and the successful candidate will be expected to attend these in person where appropriate.

If you share our values and believe that children’s lives should not be torn apart by war, we want to hear from you.

Your role

The Gaming Partnerships Executive will work closely with the Gaming Lead to grow the team’s income sustainably by focusing primarily on business development and managing a portfolio of gaming relationships. You will seek out and build new relationships with developers, games publishers, platforms and gaming communities to contribute to the pipeline of new gaming partnerships and opportunities for War Child. You will also manage a portfolio of gaming relationships that will be called on to join our campaigns and activations throughout the year. As a key member of War Child’s award-winning Gaming team, you will have a direct impact on the lives of children who have been affected by conflict.

Your responsibilities

• Manage and grow a portfolio of gaming sector relationships, developing long-term engagement plans and identifying opportunities in support of our campaigns to increase strategic and income value..
• Support the delivery of our strategic partnership with Jingle Jam, as directed by the Gaming Partnerships Manager.
• With the Gaming Lead, build a pipeline of prospective gaming partners inclusive of developers, publishers, creators, platforms and the wider gaming community to support the sustainable growth of the Gaming Team.
• Personally lead on researching, approaching and securing new gaming partners, working towards your own new business target annually.
• Contribute to the development of pitches, proposals, cultivation plans and presentations to potential gaming partners
• Work collaboratively with the Gaming Team on developing and implementing the campaigns calendar.
• Build strong relationships with other teams in War Child (Partnerships, Communications, Digital Marketing), representing the Gaming Team where appropriate in working groups to enable smooth delivery of propositions, pitches, activations and campaigns.
• Act as a War Child Ambassador in the gaming industry, attending events and conferences to raise the profile of War Child and make new connections to support business development.
• Support the marketing and promotion of all gaming activations to maximise audience engagement.
• Contribute to team-wide income forecasting and annual planning processes.
• Use all tools available to ensure compliance and our ethical fundraising policy are adhered to, this includes partnership agreements, due diligence processes, CRM database management as well as GDPR and fundraising regulations.
• Contribute to creating a culture committed to the safeguarding of children and adults and compliant to War Child’s Safeguarding and PSEAH (Protection from Sexual Exploitation, Abuse & Harassment) Policies.
• We are committed to building an inclusive and equitable workplace. All staff are expected to actively contribute to this by embedding principles of diversity, equity, inclusion, and belonging into their day-to-day work, decision-making, and interactions with colleagues, partners, and supporters.

These duties provide a framework for the role and should not be regarded as a definitive list. Other reasonable duties may be required consistent with the grade of the role.

 You are

•  Knowledgeable about gaming or have worked in the sector and can demonstrate understanding of how to harness gaming communities and the industry more widely for fundraising purposes.
•  Familiar with digital marketing and gaming platforms & services, e.g. Steam, Twitch, YouTube, Discord and Tiltify.
•  Awareness of  creator-led fundraising and community-driven campaigns and wider gaming culture.
• Able to demonstrate success in achieving financial targets through partnership management, account management, business development or sales activity, including identifying and developing new opportunities.
• An excellent communicator, confident in building and managing relationships with external and internal stakeholders with the ability to influence and negotiate.
• Able to use audience insight, engagement data or campaign performance metrics to inform partnership activity and decision-making.
• Creative and innovative thinker with the ability to develop new commercial ideas and translate into proposals that achieve results
• Proactive with a growth mindset, capable of managing and prioritising your own workload to ensure new business targets are met.
• Comfortable working in a fast-paced and evolving environment, with the ability to respond proactively to new opportunities.
• Able to demonstrate success in contributing to projects or teamwork
• Able to maintain accurate records with the help of a Client Record Management system. Salesforce experience a plus
• Awareness of fundraising compliance, due diligence and partnership contracting processes

Platform Engineer

Remote (UK-based) | Full-time | Salary: £71,043 + benefits including 4.5-day week and 11% employer pension

Do your best work, for the right reasons.

Oak is a fully remote, mission-driven organisation offering high levels of flexibility, autonomy, and purpose. We’re a national not-for-profit working in partnership with teachers to create the highest-quality, sequenced curriculum and lesson resources for pupils across all subjects and age groups.

Our culture has been independently recognised through:

• Flexa verified (93% overall score, including 95% for working hours and 97% for role modelling)

• Escape the City's Top 1% Employers – based on anonymous colleague reviews of culture, development, and impact

• Investors in People Gold - through external accreditation and colleague feedback

�� About the Role

We've built a lot, fast. Now we want to make it last.

As a young organisation, we've used modern technology to move quickly and get remarkable products into teachers' hands. We've proven what's possible. Now we're maturing, making sure the foundations are as strong as what's built on top of them. We see this role as central to that change.

You'll work with engineering, product, and research colleagues to build confidence in using observability principles that deepen our understanding of how teachers and pupils use our products, and help us keep improving them. We work in product squads alongside designers, researchers, and education experts, regularly releasing new features and improvements so teachers and pupils get quick and easy access to the highest quality learning resources.

Alongside other members of the platform engineering group, you'll enable squads to move more quickly by optimising tooling and implementing automations, including the effective and safe use of AI. You'll drive the creation and adoption of engineering standards across code, deployment, security, observability, and monitoring. And you'll be a key driver of automation, working with the rest of the platform team to improve the overall developer experience.

You'll need a good understanding of platform engineering in a SaaS-heavy environment and the value it brings to an organisation. A solid grounding in development practices, security fundamentals, and infrastructure operation matters. But specific technical skills are less important to us than a passion for automation, an ability to understand complex systems, and a pragmatic engineering approach.

As part of the Oak team, you'll contribute to the wider success and culture of the organisation, and support and role model our five values: create the right environment, be a great colleague, own your role but work for the team, make things happen, and keep getting better.

��What you'll be doing:

• Leading continuous improvement of the observability, performance, and reliability of our web applications (Next.js, JavaScript, TypeScript, Node) and serverless functions (Google Cloud Functions, Cloudflare), deployed on Vercel and Cloudflare

• Helping teams maintain high service quality by promoting a culture of quality across engineering and product, and enabling squads to use SLOs and SLAs effectively

• Contributing to the strategy and evolution of our monitoring, logging, and reporting solutions so developers can resolve problems quickly and get meaningful insights into application behaviour

• Identifying and implementing automations that speed up development, improve security, or raise the quality of what we deliver

• Working in cross-functional, product-oriented squads with colleagues from across the organisation

• Deputising for other members of the platform team and taking on broader responsibilities as needed

�� What we're looking for

You'll have strong professional experience working with event-driven architectures using serverless technologies such as Google Cloud Run, AWS Lambda, or Azure Serverless.

Beyond that, you'll bring:

• Demonstrable experience collaboratively designing and implementing observability, monitoring, and reporting solutions for complex cloud infrastructures in a major cloud provider (GCP, AWS, or Azure), including solutions for squad-specific use cases

• Confidence reading and maintaining web application code, with the ability to design and build small apps, preferably in JavaScript or TypeScript

• Experience with cloud computing platforms and a working familiarity with Infrastructure as Code tools

• A collaborative approach, comfortable promoting and leading collaboration with both technical and non-technical stakeholders, and able to frame work in terms of impact.

You'll want to contribute in all areas, not just your own lane. You'll be comfortable working at pace across a range of digital systems, always looking for ways the team can keep getting better. And you'll be excellent at remote working, building relationships and managing your time effectively.

Specific technical skills matter less to us than a sound engineering mindset and the ability to bring others with you.

�� Our Benefits

• 25 days annual leave, plus one extra day for each year of service (up to 28)

• Additional Oak closure days over Christmas/New Year

• 11% employer pension contribution (with no minimum employee contribution)

• A 36-hour working week, with half-days on Fridays or every other Friday off

• Fully remote working — we’ll support your home set-up and offer coworking options if preferred

• Twice-yearly in-person offsites to collaborate, connect, and have fun

• A culture that genuinely supports flexibility, autonomy, and trust

�� Inclusion and Belonging

We believe diverse teams build better products. We warmly welcome applicants from all backgrounds, particularly those who are underrepresented in the tech and education sectors. 

If you're from an underrepresented group, there's a good chance you're discounting yourself before you've even started. That's more common than you'd think, and it means we may miss out on brilliant people. If you're excited by this role but don't meet every requirement, please apply anyway.

We use the Applied platform to help reduce bias in our hiring process. Answers are anonymised and reviewed by a panel of humans.

�� Key Info

• Location: Remote, but you must be based in the UK with the legal right to work here

• Sponsorship: Unfortunately, we’re unable to offer visa sponsorship at this time

• Closing date: We’ll be reviewing applications as they come in and may close the role early

If this sounds like the kind of role and team where you could do your life’s best work, we’d love to hear from you.

Next steps

You'll answer a few admin questions followed by three questions about your day-to-day work. Answers are anonymised, randomised, and reviewed by a panel, so it's your thinking that gets assessed, not your CV.

If you're shortlisted, we'll invite you to interview. We give everyone feedback at the end of the process.

Interview dates:

Interview 1: Monday 13 and Tuesday 14 July 2026

Final interview: Monday 20 and Tuesday 21 July 2026

If this sounds like somewhere you could do your life's best work, we'd love to hear from you.

We're getting strong responses to our roles and we may close applications early. If you're interested, don't leave it too long.

We are an equal opportunities employer.

We're an equal opportunities employer and committed to making sure everyone is treated fairly, regardless of gender, age, disability, religion, belief, sexual orientation, marital status, or race.

Are you a digital product leader who enjoys balancing strategy with delivery, user needs with organisational priorities, and long-term vision with day-to-day execution?
 

Great Ormond Street Hospital Charity is looking for a Senior Website Manager to lead the evolution of one of our most important digital products. Our website is much more than a website - it is where supporters discover our work, fundraisers find inspiration, donors take action, and people learn about the difference their support makes to seriously ill children and their families.

This is a high-profile role sitting within our Performance Marketing and Digital Engagement team, with responsibility for shaping the future of the charity’s digital experience. We’re looking for someone who can think strategically about where we need to go, while also being comfortable rolling up their sleeves to help make it happen.
 

You’ll lead the website product roadmap, drive continuous improvement across supporter journeys and work across a wide range of teams including Fundraising, Marketing, Communications, Technology, Data and external partners. Success in this role comes from being able to flex between strategic planning, stakeholder management, product ownership, user experience, optimisation and delivery.

No two days are likely to look the same. One day you might be facilitating roadmap discussions with senior stakeholders, the next analysing user behaviour, shaping an SEO strategy, reviewing backlog priorities with developers or testing new approaches to improve conversion and supporter engagement.
 

We’re looking for someone who enjoys bringing people together around a shared vision, navigating complexity and making confident decisions based on evidence, user needs and organisational priorities. Someone who can challenge constructively, build consensus and help teams focus on what will create the greatest value for our supporters and the organisation.
 

Salary

The salary for this role is £51,000 per annum and we operate a hybrid working policy of a minimum of 2 days per week in the office.

In line with our EDI strategy and Total Reward policy, we calculate our salaries based on benchmarking data across the charity sector. To ensure fairness for existing staff and new joiners, we do not offer salaries above the advertised rate.

Note – this job is known internally as Senior Product Manager – Website. 

Key Responsibilities

• Lead the strategic vision, roadmap and ongoing development of the charity website, ensuring it supports supporter needs, fundraising objectives and organisational priorities.
• Own the website product backlog, balancing long-term improvements, business priorities, technical considerations and user experience enhancements.
• Work closely with Technology teams, developers, analysts, content specialists and external partners to scope, prioritise and deliver digital improvements through agile ways of working.
• Champion a user-centred approach, using insight, research, testing and data to improve supporter journeys and digital experiences.
• Lead website optimisation activity, including experimentation, A/B testing, user research and conversion improvement initiatives.
• Drive the GOSH’s SEO strategy, ensuring content and technical improvements support sustainable growth and discoverability.
• Build strong relationships across Fundraising, Communications, Marketing and Technology teams, helping align priorities and bring stakeholders together around shared goals.
• Translate organisational needs and supporter insight into clear product outcomes, user stories and prioritised delivery plans.
• Manage website performance, governance, accessibility and compliance, ensuring the platform remains secure, effective and fit for purpose.
• Lead and develop a small team while building digital capability across the organisation through guidance, training and best practice.

Skills, Knowledge and Expertise

• Significant experience managing websites, digital products or digital platforms in a complex environment.
• Strong product management experience, including roadmap development, backlog management and prioritisation.
• Experience working across multiple teams and stakeholder groups, with excellent relationship-building and influencing skills.
• Strong understanding of user-centred design, digital optimisation and supporter or customer journey development.
• Experience using analytics, user research and insight to inform decisions and improve performance.
• Strong SEO knowledge and experience developing strategies that drive growth and visibility.
• Experience working with software engineers, technology teams and external suppliers to deliver digital products and improvements.
• Ability to move comfortably between strategic thinking and hands-on delivery, adapting to changing priorities and organisational needs.
• Strong communication skills, with the ability to translate complex information for technical and non-technical audiences.
• Experience leading and developing teams, creating a collaborative and high-performing environment.

This is a varied and high-impact role where you’ll help shape how people experience GOSH Charity online—from the first moment they discover us to the actions they take to support seriously ill children and their families.
 

You’ll have the opportunity to influence strategy, lead digital transformation, improve supporter experiences and work with a wide range of talented colleagues across the organisation. If you enjoy solving problems, bringing people together and creating digital experiences that make a difference, we’d love to hear from you.

QuarterFive are delighted to be supporting STEM Learning, a leading educational charity that believes every young person deserves access to high-quality education and career support, regardless of their background. 

Reporting directly to the Chief Executive, and as a member of the Senior Management Team, you will lead the organisation's fundraising strategy and team to secure significant, multi-year income from major donors, trusts and foundations and corporates. You’ll be responsible for expanding their funding base, deepening key relationships, and ensuring the organisation has the partnerships and resources to achieve its mission.

Fundraising has developed rapidly in recent years, with investment, board-level commitment and a growing team driving success. With strong foundations in place and a portfolio of high-value partnerships, there is an exciting opportunity to scale their strategic influence and deepen their impact.

We’re looking for a relationship-driven leader who will take an entrepreneurial approach to identifying opportunities for new funds and develop long-term, high-impact partnerships.

This is a hybrid but mostly home-based role, with monthly team meetings and occasional overnight stays at the N.England headquarters, and fortnightly attendance at the London office. All travel costs covered.

As Head of Fundraising, you will:

• Lead on fundraising strategy with major donors, trusts and foundations and corporates, focusing on driving  new funder engagement and developing long-term, high-impact partnerships
• Secure high-value, multi-year funding partnerships with major donors, trusts and foundations and corporates, achieving six-figure and above income targets
• Manage, develop and inspire a team of five, fostering a proactive, collaborative, innovative and high-performing culture
• Build and maintain a strong, diversified pipeline of new and repeat funders aligned to organisational priorities and ethical fundraising principles
• Engage senior stakeholders including the CEO, Chair, Trustees and senior partners to unlock networks and open opportunities
• Work closely with programme and delivery teams to create compelling funding propositions and ensure excellent stewardship and impactful reporting
• Represent the organisation at senior-level networking events, conferences and sector forums, influencing decision-makers and strengthening brand positioning

Essential skills and experience:

• Success in securing and growing income from a range of sources, including HNWIs and trusts and foundations — delivering six-figure and multi-year partnerships
• Skilled relationship builder with experience developing and stewarding complex, multifaceted partnerships that deliver mutual value and long-term impact
• Strong managerial skills to empower teams and support their professional development and enjoyment in their role
• Strategic business developer with the ability to build and maintain a strong pipeline of funding opportunities, identifying, cultivating, and converting prospects to meet fundraising targets
• Entrepreneurial and proactive, with a strong sense of ownership and the confidence to identify, shape, and present compelling cases for support
• Collaborative and influential, experienced in working across matrix structures and with remote or cross-functional teams to achieve shared goals, ensuring alignment and effective delivery
• Highly skilled communicator, comfortable presenting to diverse audiences and tailoring messages to inspire and engage at all levels
• Strong networker, eager to represent the organisation at events and conferences, identifying new opportunities, and staying informed on market trends and developments in the philanthropic and corporate partnership landscape

Desirable, but not essential:

• An understanding and general knowledge of the education landscape in the UK
• Experience of establishing or maintaining a Fellowship programme

Employee benefits include:

• 30 days annual leave plus bank holidays
• Up to 15% employer pension contributions 
• Private health care via Benenden Health plus Healthcare Cash Plan and Dental Plan
• Annual salary review
• Electric Car Benefit Scheme