Senior Back End Engineer UK Based

Chattermill

SENIOR BACKEND ENGINEER 🌍 UK / Europe (Remote or Hybrid, it’s up to you!) 💰 Dependent on experience 📈 Be part of our success with the opportunity to join our equity scheme   🦸‍♀️ The Role 🦸‍♀️ Our mission is to help large successful brands like Uber, Amazon, Wise, HelloFresh (and more!) put their customers at the centre of everything they do. Using best-in-class tech in a fast-evolving AI space, our Customer Experience Intelligence platform continuously analyses explicit and implicit feedback to help our clients identify what to do next. We're now looking for a talented Senior Backend Engineer to join the team!   👉 What you'll be doing: You’ll be designing, building and scaling the backend services and APIs that power Chattermill’s core analytics platform. Owning and driving the delivery of high-impact engineering workstreams and integrating AI capabilities into the product experience. This means you will: * Design, build, and maintain scalable backend services and APIs that power Chattermill’s core analytics platform. * Architect reliable, maintainable distributed systems and contribute to the evolution of backend service design and infrastructure. * Own end-to-end delivery of backend engineering workstreams, from technical scoping and architecture through to implementation, testing, observability, and production support. * Integrate language models, agentic frameworks, and AI pipelines into core product and backend services. * Drive performance, reliability, and observability across high-throughput distributed data systems, including logging, tracing, alerting, and incident response. * Work with cloud infrastructure and distributed systems in GCP (preferred) or AWS environments. * Collaborate closely with Product to define scope, shape technical solutions, and explore new platform capabilities and features. * Contribute to engineering excellence through code reviews, architectural discussions, and continuous improvement of development standards across the team.   🧰 What you’ll need: *  Strong professional experience operating as a senior backend engineer within high-ownership product engineering teams. * Strong proficiency in at least one modern backend language such as Python, Ruby, or Go, with a focus on scalable system design and architectural thinking. * Solid understanding of distributed systems, RESTful APIs, and event-driven architectures. * Experience optimising database performance at scale, including query tuning, indexing, and partitioning across large production datasets. * Cloud platform experience, ideally within GCP environments, although AWS experience is also valued. * Hands-on experience with observability tooling and production operations, including logging, tracing, alerting, and incident response. * Proven ability to independently deliver backend features and technical projects in fast-paced product environments. ➕It would be a bonus if you: * Experience integrating LLMs, prompt engineering techniques, or agentic frameworks such as Anthropic, OpenAI, or MCP. * Familiarity with AI-assisted development workflows and tools such as Cursor, Copilot, or Claude Code. * Experience working with ClickHouse, BigQuery, or other analytical databases supporting large-scale analytical workloads. * Experience with customer feedback analytics, NLP, or text analytics platforms. * Familiarity with Elasticsearch or large-scale search infrastructure. * Experience building asynchronous or event-driven systems using technologies such as PubSub, Kafka, or equivalent. * Contributions to open-source projects, conference speaking, or public technical writing. 🔎 Our Hiring Process 1. Let’s introduce ourselves – you’ll complete an introductory asynchronous interview - we’d love to learn more about you, your ambitions, and what you’re looking for in your next step. 2. Show us how your work and reason - You’ll meet with a member of our engineering team to complete a Live pseudo-code exercise. 3. Get to know your would-be team – You'll meet people you'll be working closely with from our Engineering team, and complete a System design and architecture-based interview. 4. Get to know your would-be manager – you’ll have a call with Ugo Anomelechi, our VP of Engineering, to learn more about the role and show off your experience. 5. How our values and your career goals align – you’ll have a call with our cofounder to learn more about life at Chattermill and ensure we’re the right place for your next stage of growth. Our Perks 🤸🏽‍♂️ Flexibility & Work Setup * Flexible working in a choice-first environment - we trust the way you want to work! * Work-from-home allowance to set up your ideal workspace 🌴 Time Off * 25 days holiday + local bank holidays, plus an extra day for each year of service * Your birthday off 🌱 Growth & Ownership * Annual learning & development budget to support your growth (increasing over time) * Equity options — share in the company’s success 💚 Health & Wellbeing * Monthly health & wellbeing budget, increasing with length of service * Optional private healthcare plan * Life assurance & income protection (location dependent) * Employee Assistance Programme (location dependent) for extra support when you need it * Enhanced family leave (location dependent), plus fertility and neonatal leave 🌆 Office Perks * If you’re in London, a dog-friendly office with great classes, events, and a rooftop terrace 💖 Our Values  * We are obsessed with experience – We take our mission to rid the world of bad Customer Experience seriously, and we practice what we preach. * We believe in the power of trust – Whether it's with each other, our customers, partners, or other stakeholders, we always communicate with openness and trust. * We act as responsible owners – Whether it's about the company, a team, a project, or a task, having the freedom to make decisions in our area of responsibility is a crucial driver for us. * We share a passion for growth & progress – On every level, we’re motivated by taking on new challenges – even if they seem out of reach. We recognise that we are learning machines and we always seek to action feedback and improve collectively. * We set our ambitions high but stay humble – We've come together to build a product and a category that’s never been seen before. While we're an ambitious bunch with lofty goals, we don't approach this goal carelessly. * We believe the right team is the key to success – At Chattermill we’ve learned that all our important achievements have been the result of the right people collaborating together – that’s why we need you to apply today! 🌈 Diversity & Inclusion 🌈 We want to enable exceptional experiences for everyone, and to achieve this we need everyone’s voice in our team.  We are on a mission to bring more diversity into the business and to give everyone (from all backgrounds and abilities) a chance to join us, even if they may not fit all of the requirements set out in this job spec. We realise that some may be hesitant to apply for a role when they don’t meet 100% of the listed requirements – we believe in potential and will happily consider all applications based on the skills and experience you have, we’d love to be part of your growth and we encourage you to apply!      #seniorbackendengineer #backenddeveloper #distributedsystems #cloudengineering #Python #GoLang #AIEngineering #LLM #Kafka #SaaS #AI #GCP #AWS #apidevelopment #engineering #engineer #developer #tech

YLD

* Location: London 1-2 days a week.  * Department: Engineering * Employment Type: Contract * Contract Length: 6 months (with potential for extension) ABOUT YLD: Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay. We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done. ABOUT THE ROLE: As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious, passionate, driven, and enthusiastic. You should be skilled in problem-solving and experienced in designing scalable, resilient, and fault-tolerant architectures. You’re also an effective communicator and a strong team player. Together with your team, you’ll thrive in a fast-paced engineering environment, delivering outstanding results and exciting projects. PREFERRED SKILLS: * Strong backend engineering experience, with Go as a primary or preferred language; * Comfortable working in cloud environments such as AWS, Azure, or Google Cloud; * Experience building and maintaining APIs and backend services, including SaaS platforms; * Familiarity with modern infrastructure and distributed systems; * Solid understanding of modern deployment practices, including Docker, containers, and Kubernetes; * Strong background in testing strategies, including TDD, across the full system lifecycle, with a focus on performance optimization; * Use AI tools to augment your work, applying sound judgement to adopt emerging technologies where they genuinely add value and increase your impact as an engineer. YOU SHOULD APPLY IF YOU ARE: * Self-motivated, proactive and always looking for ways to improve and develop yourself; * A good communicator, both in writing and verbally. You’ll be able to explain technical ideas and concepts in business-friendly language; * Detail-oriented; * Possess strong problem-solving skills that balance innovation with pragmatic technology choices to solve business needs; * Used to working in a team-oriented, collaborative environment; * Analytical and problem-solving-oriented; * A genuine believer in diversity and fairness. WHAT YOU’LL GET IN RETURN: * The chance to work with a forward-thinking, ethical, and fun group of people and to develop and grow your skills in a fast-moving business OUR TYPICAL RECRUITMENT PROCESS: * 1st Interview with a Talent Partner (30/45 mins) * Technical Interview with our Senior Developers (1h30) * Final chat with our Client Partner (30/45 mins) Get a glimpse of what it's like working at YLD! 🤳 Check out our LinkedIn page WE LIVE AND BREATHE OUR VALUES, AND KNOW YOU WILL TOO: * Growing every day * Including everyone * Relationships built on honesty and ethics * Inspiring solutions * Winning together We’re an equal-opportunity employer and value diversity in all its forms. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, pregnancy or maternity, age, marital status, or disability. We also offer a remote-first working environment, with flexible working and work–life balance as standard for all employees.

Kyra

ABOUT KYRA Kyra is an enterprise influencer marketing platform working with brands like SharkNinja, Coach, H&M, Ray-Ban, and Converse. Our platform manages the full lifecycle — creator discovery, campaign management, content review, payments, analytics, and AI-powered intelligence across TikTok, Instagram, and YouTube. 📍London (Hybrid) | 6-month Fixed-Term Contract 💰 Competitive, dependent on experience The Opportunity You will be the day-to-day owner of one of Kyra's largest and most complex global enterprise accounts: a fast-moving, multi-category consumer brand with 12+ sub-brands, 35+ active stakeholders, and campaigns running simultaneously across multiple regions. Your job is to keep delivery tight, keep the client happy, and be a safe pair of hands on a flagship account. This is not about growing or expanding the account. The commercial relationship is locked in. The job is world-class servicing at enterprise scale. What you'll do: * Own the global account relationship across 12+ sub-brands and multiple regions. Stay organised across a volume of comms, briefs, and stakeholders that is genuinely unusual. * Orchestrate cross-functional teams: creative, paid media, creator partnerships, and product. You are the connective tissue. If something drifts, you see it early and fix it. * If something drifts (performance, scope, relationship, or timeline) you see it early and fix it. No surprises. Steady, organised ownership. 🎯 Lead the Relationship Own client relationships across product launches, seasonal campaigns, and always-on programmes. Multi-thread across their teams. Build trust at every level. Have direct conversations when performance needs to improve. 📈 Turn Insight into Strategy Translate campaign data into clear, executive-level recommendations using AI to move from raw numbers to narrative faster. Present performance against KPIs (engagement, EMV, sales lift, affiliate impact) and explain what it means. 🔍 Own Delivery End-to-End Lead client onboarding for new briefs: build decks, verify SOW accuracy, coordinate internal teams, demo the platform. Manage timelines, scopes, budgets, and execution across our full product suite, including Always-On creator partnerships, Pulse campaigns, Makers (CGC), Amplify+ (paid boosting), Seeding+, and License+. With 6+ briefs running simultaneously, operational precision is everything. Keep work on-brand, on-time, and within margin. 📊 Protect & Grow Revenue Lead post-campaign analysis: run internal post-mortems, build PCA decks, present performance narratives. Own exec-ready reporting (QBRs/EBRs). Reporting should inform decisions, not just recap them. 🛡️ Keep the System Tight Keep tracking clean. Watch capacity. Fix what's inefficient. Make sure client feedback doesn't get lost. Feed client insights back into product development. Feed Insight Back into Product Surface client needs, pain points, and feature requests back into the product team. You are the closest person to how the client actually uses the platform.   What We're Looking For We're looking for someone who has: * 4–6+ years in influencer or creator marketing * Campaign execution experience. You have actually run creative marketing activations, not just managed client relationships from a distance. * Enterprise account servicing at scale. Multi-stakeholder, high-volume, complex. You have managed accounts with this many moving parts before. * Exceptional organisation. The volume of comms, briefs, regions, and stakeholders on this account is unusually high. Getting lost is easy. You don't get lost. * Self-starter with an entrepreneurial mindset. You take ownership of learning, build internal relationships proactively, and don't wait to be told what to do. * Strong hands-on campaign experience, with real fluency in TikTok. * AI fluency, applied. Our platform is AI-powered and you'll be expected to get up to speed fast and use it daily for client summaries, performance narratives, and campaign analysis. We're looking for people already comfortable using AI tools in their workflow, so the learning curve is the platform, not the concept. * Comfortable working across project management tools (Asana, Airtable, Slack) and reporting dashboards. * CPG or multi-category consumer brand experience is a plus. You should be commercially sharp, operationally reliable, and able to speak confidently about the accounts you've managed. Traits That Matter Proactive. Organised. Adaptable. Self-starting. Comfortable with ambiguity. You don't wait for problems to land. You see them coming and act. You don't need rigid processes or hand-holding. Tools, product, and ways of working evolve constantly here, and you thrive on that. You're willing to say "I don't know" and go find out. You take feedback well. You build trust fast. What Success Looks Like What Success Looks Like By Month 1: You have full context on all active sub-brands, briefs, and stakeholders. You've built a strong working relationship with the Campaign Director and the internal pod. The client knows your name and trusts you to run things. By Month 3: Delivery is running smoothly across all regions. You own reporting and client comms without oversight. Post-campaign analysis is sharp and drives clear recommendations. Internal teams come to you, not around you. By Month 6: The account is in better shape than when you arrived. Stakeholder satisfaction is high. Nothing has been dropped. Leadership trusts your judgement completely. Benefits 🏢 Hybrid working. 3 days per week in-office, 4 days during your first 2 weeks of onboarding. 🌴 Annual Time Off: 25 days PTO (pro-rated) + bank holidays (pro-rated), 4 company-wide days off (Kyra Days), 3 wellness days, and paid sick leave each year 📚 Growth: Annual Learning & Development budget to invest in your skills. 💰 Rewards: Annual bonus scheme to recognise great workAI is core to how we operate. Use it to elevate your work. But everything in your application should reflect your own judgement and experience. 💟 Support If you have a condition or require an adjustment to our interview process - please let us know so we can make adjustments to support you. Please note that when you submit an application or resume, your data will be processed in line with our privacy policy.