Jobs in United Kingdom

Lead Junior Senior Sr Software Engineer Full Stack in London

140 active opportunities · Updated October 2026

Explore current lead junior senior sr software engineer full stack jobs in London. Filter by work mode, employment type, experience, department, date posted and distance.

Hiring demand

56/100

steady · 42 related jobs

Hiring trend

-76.5%

Job postings compared with the previous 30 days

Remote options

7.1%

Share of matching jobs listed as remote

R
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -100%

Replit is the agentic software creation platform that enables anyone to build applications using natural language. With millions of users worldwide, Replit is democratizing software development by removing traditional barriers to application creation. About the Role Replit is experiencing extraordinary growth across our customer base and seeking an Enterprise Account Manager with strong communication skills to drive retention, expansion, and customer success. Candidates with Customer Success or Account Management experience in SaaS, particularly with some technical background (i.e. having some coding knowledge or prior experience at other developer tool companies) are ideal. We believe this role offers a distinctive opportunity for people who excel in client-facing situations and have a passion for customer success and AI. You'll leverage your skills to help customers maximize value from Replit's platform while driving sustainable revenue growth. In this role you will: Serve as the primary relationship owner for your assigned customer portfolio, ensuring high satisfaction and retention Champion customer success by helping businesses realize the transformative potential of AI-powered software creation Lead onboarding programs that accelerate customer time-to-value and platform adoption Guide customers through Replit's rapidly evolving feature set, including Agent 3's autonomous capabilities, Plan Mode, and automation tools Execute renewal processes with a focus on expansion and long-term partnership development Maintain accurate customer health scores and renewal forecasting data in Replit's CRM (Hubspot) Gather and communicate valuable customer feedback, championing their interests within Replit Optimize customers' use of the Replit platform through ongoing training, support, and strategic guidance Required skills and experience: 5-7+ years of experience in Customer Success, Account Management, or technical sales role, preferably in SaaS or developer tools Excellent

R
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -100%

Replit is the agentic software creation platform that enables anyone to build applications using natural language. With millions of users worldwide, Replit is democratizing software development by removing traditional barriers to application creation. As a Premium Support Engineer at Replit, you’ll be the front line for our highest-value customers — delivering fast, expert, and reliable technical support when it matters most. You’ll handle complex product issues, guide customers through critical incidents, and ensure every interaction meets the highest standard of quality and speed. Replit is at the forefront of AI-driven software development, and how we support customers is constantly evolving. You’ll play a critical role in shaping how Premium Support adapts to new products, new customer expectations, and AI-assisted workflows, operating effectively in ambiguity and driving clarity for your team. You’ll combine deep technical troubleshooting with calm, confident communication to keep builders moving — whether it’s an enterprise team deploying at scale or a top-tier developer relying on Replit to power their business. In this role you will: Provide swift, high-priority support to Premium customers, responding within strict SLAs. Diagnose, reproduce, and resolve complex technical issues across the Replit platform. Escalate and track high-impact issues with Product and Engineering, ensuring timely fixes and transparent communication. Lead customer-facing communications during outages or incidents. Identify recurring issues and collaborate internally to reduce time-to-resolution. Contribute to internal tooling, automation, and documentation that improves team efficiency. Partner with Engineering, Product, Sales and other internal teams to ensure Premium customers receive a consistent, high-quality experience. Help onboard and mentor other support engineers, raising the team’s overall bar for responsiveness and quality. Required skills and experience: 3+ years in techn

JavaScriptPythonJavaAI
P
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -100%

We believe that the way people interact with their finances will drastically improve in the next few years. We’re dedicated to empowering this transformation by building the tools and experiences that thousands of developers use to create their own products. Plaid powers the tools millions of people rely on to live a healthier financial life. We work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid’s network covers 12,000 financial institutions across the US, Canada, UK and Europe. Founded in 2013, the company is headquartered in San Francisco with offices in New York, Washington D.C., London and Amsterdam. As an Enterprise Account Manager on our Account Management team, you'll own and grow a portfolio of Plaid's most strategic customers across the UK and Europe, spanning leading fintechs, banks, and enterprise accounts. This is a growth role: you'll be the trusted advisor your customers call on directly for guidance on how to build and deliver a seamless product experience, and you'll use that relationship to identify and deploy new, innovative use cases across your book. You will own commercial growth end to end, from renewals through to multi-product expansion, working closely with Sales, Product, Solutions Engineering, and Legal to get there. Responsibilities Own and grow a portfolio of Plaid's largest and most strategic UK & European enterprise customers Build deep, trusted-advisor relationships with executive sponsors and day-to-day operators, so customers come to you first for product and strategic guidance Proactively grow the account: identify upsell and cross-sell opportunities within the existing book and convert them into deployed use cases Deploy new, innovative use cases across some of the leading fintechs and banks in the UK and Europe Lead commercial conversations including renewals

S
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -97.1%

At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate your impact. We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset — who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. At Snowflake, your role isn't just to execute a function, but to help redefine the future of how work gets done. We're at the forefront of the data revolution, building the world's greatest data, applications, and AI platform. Our culture empowers everyone at Snowflake to innovate, create work with lasting impact, and thrive in a collaborative and value-driven environment. Snowflake is looking for a Director of Partner Marketing, EMEA to shape and lead our partner marketing strategy across the region. This leader will serve as the critical connective tissue between Global Partner Marketing and EMEA Sales, Alliances and Marketing, translating global strategy and programs into focused regional execution, while bringing EMEA priorities and insights back into our global approach. This is a senior leadership role for someone who combines strategic judgment, operational rigor and cultural excellence. You will focus our resources on the partners and opportunities that matter most, ensure partner motions are deeply integrated into our core GTM priorities, and build a team and culture known for focus, accountability, collaboration and impact. What You'll Do Set the EMEA partner marketing strategy and priorities, aligning closely with Global Partner Marketing while determining where and how to activate across strategic cloud partners, GSIs, ISVs and other priority ecosystem relationships in the

P
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -100%

The Team + The Role Pendo’s Customer Engineering team is the technical backbone of the pre- and post-sales customer motion. The team brings together work that has historically sat across Customer Success, Technical Account Management, and Solutions Engineering into one full-lifecycle technical owner. Customer Engineering helps customers connect technical execution to business outcomes and realize the value of their investment in Pendo. The Team + The Role Pendo’s Customer Engineering team is the technical backbone of the pre- and post-sales customer motion. The team brings together work across Customer Success, Technical Account Management, and Solutions Engineering into one full-lifecycle technical owner. Customer Engineering helps customers connect technical execution to business outcomes and realize the value of their investment in Pendo. As a Senior Customer Engineer you will own strategic and complex Enterprise accounts across acquisition, implementation, adoption, expansion, and escalation. You will lead technical strategy for complex deployments, resolve ambiguous customer challenges, and partner closely with account teams to drive retention, expansion, and customer value. Your impact will extend beyond your own accounts through playbooks, coaching, repeatable fixes, and workflow improvements that raise the capability of the broader Customer Engineering team. This role is based in our London office. What this looks like day-to-day New customer acquisition and selling: Partner with Account Directors on pre-sales motions for new customer acquisition, product expansion, and growth across lines of business. You identify customer pain, craft and deliver tailored demos, and lead technical evaluations through requirements gathering, success criteria, installation guidance, and hands-on workshops. Quarterly business outcomes: Drive measurable improvement in customer health, retention, expansion,

JavaScriptJavaReactGit
S
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -100%

For over 20 years, Smartsheet has empowered teams to manage work seamlessly and scale solutions smarter. Now, in our most ambitious chapter yet, we are uniting human teams with AI agents. By orchestrating the work agents do best, automating manual tasks and uncovering insights at scale, we create the space for people to focus on what truly matters: judgment, creativity, and big thinking. That is magic at work, and it’s what we show up for every day. AI is reshaping how enterprises buy, adopt, and expand work management platforms — and the conversation is moving faster in EMEA than most vendors are equipped to support. Smartsheet is building a market-leading AI narrative anchored in organizational intelligence, agentic workflows, and the Model Context Protocol (MCP), and this role exists to make that narrative land with EMEA field teams and the enterprise buyers they serve. As a Sr. Product Marketing Manager on the AI GTM Strategy team, you will be the in-region AI product marketing partner for Smartsheet's EMEA sales organization. You will translate the global AI narrative, product roadmap, and enablement infrastructure into regionally activated content, training, and field support — ensuring EMEA account executives, solution engineers, and customer success managers can lead substantive AI conversations that drive pipeline and expansion. This is not a generalist PMM role. You will own the intersection of AI product marketing and regional field activation across EMEA, working at the pace of a rapidly evolving product surface and a field organization that needs to be ahead of the market conversation. The role is hybrid, based at Smartsheet’s corporate offices in London, UK. You will report to our VP, AI Market Strategy. You will own: AI Narrative Activation — EMEA Execute the regional activation of Smartsheet's global AI narrative across EMEA field teams, adapting messaging for market maturity, regulatory context, and competitive dynamics specific to European enterpri

S
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -100%

For over 20 years, Smartsheet has empowered teams to manage work seamlessly and scale solutions smarter. Now, in our most ambitious chapter yet, we are uniting human teams with AI agents. By orchestrating the work agents do best, automating manual tasks and uncovering insights at scale, we create the space for people to focus on what truly matters: judgment, creativity, and big thinking. That is magic at work, and it’s what we show up for every day. Smartsheet is looking for an Enterprise Account Executive to join our EMEA organisation. You will be responsible for increasing software and services sales by expanding existing customers' adoption along with targeting new logo acquisition. This is an incredibly exciting opportunity to help build out a strategically important vertical for Smartsheet. This role is based at Smartsheet in London, UK (hybrid or UK, remote eligible) and reports to a Regional Director, Enterprise Sales. You Will: Exceed quarterly and annual software and services sales quotas Lead primary and secondary account teams by partnering with Solution Engineering, Consulting, Customer Success, Customer Outcomes, Marketing and Sales Development Develop short and long-term growth and renewal strategies across your customer base Balance tactical execution whilst ultimately targeting complex, high-value solution-based deals Proactively develop unsolicited proposals that align with customer initiatives and position Smartsheet as an enterprise software solution provider Accurately forecast sales opportunities, while tracking and using critical metrics that predict sales success Perform other duties as assigned You Have: 7+ years of experience selling enterprise software or services Demonstrable track record of exceeding assigned quotas and receiving recognition for high-performance Demonstrable experience building relationships with senior line-of-business leaders, IT executives and operational managers within Enterprise organisations (>10,00

AWSAIGoRust
S
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -100%

For over 20 years, Smartsheet has empowered teams to manage work seamlessly and scale solutions smarter. Now, in our most ambitious chapter yet, we are uniting human teams with AI agents. By orchestrating the work agents do best, automating manual tasks and uncovering insights at scale, we create the space for people to focus on what truly matters: judgment, creativity, and big thinking. That is magic at work, and it’s what we show up for every day. Smartsheet is looking for an Account Executive to join our EMEA organisation . You will be responsible for increasing software and services sales by expanding existing customers' adoption along with targeting new logo acquisition. This is an incredibly exciting opportunity as we build out our UK business. This role is part of the Commercial Sales team and is based at Smartsheet in London, UK (hybrid eligible) and reports to a Manager, Commercial Sales . You Will: Exceed quarterly and annual software and services sales quotas Develop and execute strategic account plans for a defined set of key accounts in the Commercial segment (200-5,000 employees). Lead primary and secondary account teams by partnering with Sales Engineering, Consulting, Customer Success, Customer Outcomes, Marketing and Sales Development Develop short and long-term growth and renewal strategies across your customer base Balance tactical execution whilst ultimately targeting complex, high-value solution-based deals Proactively develop unsolicited proposals that align with customer initiatives and position Smartsheet as an enterprise software solution provider Accurately forecast sales opportunities, while tracking and using critical metrics that predict sales success Perform other duties as assigned. You Have: 3+ years of successful SaaS sales experience with a proven track record of exceeding quotas in the Commercial segment. Demonstrated experience building and maintaining strong, long-term customer relationships within the Com

R
📍 London, England, United Kingdom· Full-time
✓ Quality checked

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a founding member of the Security Operations team in EMEA, you will join us at an exciting time in Roblox’s SIRT & SOC program. You will design and build the detections, automation and tooling that let a lean team monitor and protect players, developers, employees and the platform at global scale and serve as security incident commander in the region. This is a highly autonomous role where you will be a primary decision-maker, core to our mission to maintain a highly capable 24/7/365 monitoring and response capability. While you will work in close collaboration with peers at our US West Coast Headquarters, the time difference requires an engineer who can operate independently, making critical decisions without immediate oversight. We favor engineering our way out of toil through automation, orchestration, detections-as-code, and risk-based prioritization, while retaining the deep technical skills required to conduct detailed, hands-on analysis and lead response end-to-end when the situation warrants. Work Environment: This role is based in London, UK. You will be working from a dedicated, private space located within a shared office environment, designed to enable collaboration

AWSGitAIGo
D
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -92.3%

Datadog is seeking a Field Marketing Manager to develop and execute regional field marketing programs that drive pipeline, build brand awareness, and deliver exceptional customer experiences across the region. This is a true field marketing role spanning campaigns, account-based marketing, and events, you'll partner closely with Sales, Demand Gen/ABM, Partner Marketing, and Communications to bring Datadog's go-to-market strategy to life in market. In the initial 6 months, your focus will be on planning and executing a curated slate of first and third-party events and sponsorships across the region. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You'll Do: Develop and execute regional field marketing programs - including campaigns, account-based marketing, and events - that drive pipeline and strengthen Datadog's brand in market Own the marketing pipeline generation outcome from conception to execution to results Evaluate and prioritize third-party sponsorship opportunities based on audience fit, brand visibility, and pipeline potential Partner with Sales, field marketing teams, and Demand Gen/ABM to align target account lists, build pipeline-driving campaigns, and convert event and program engagement into qualified pipeline Collaborate with Communications and Partner Marketing to align messaging and co-marketing opportunities across programs Own on-site logistics and execution for events, ensuring high-touch, on-brand delivery for customers, prospects, and partners Track and report on program and event performance (pipeline influenced, cost-per-lead, attendee quality) and use data to continuously optimize Act as the regional point of contact for field marketing strategy, keeping regional leadership and global marketing ops aligned on status and risks

D
📍 London, United Kingdom; United Kingdom, United Kingdom· Full-time· Remote
✓ Quality checkedCompany trend -92.3%

We are looking for an experienced Principal Partner Manager to build and accelerate growth with our top security-focused channel partners in EMEA. Our ultimate goal is building channels and alliances that drive new customer adoption and revenue. In this role, you will drive Datadog’s business relationships by analyzing partner business performance, identifying methods of increasing partner and Datadog returns, and identifying opportunities with your named partners to position Datadog as the observability & cloud security platform of choice for their install base, programs & contracts. This is a great opportunity for you to join a high-growth cloud software company and help blaze the path for our company's expansion. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do: Own the top cloud security-focused channel partner relationships Drive net new and expansion revenue through our top established and strategic cloud security partners Recruit and onboard new security-focused partners aligning to Datadog’s Ideal Partner Profile Oversee Datadog Partner Agreement process and, if needed, collaborate with Datadog Legal Work with partners to develop partner-led insertion points, including joint solution and services offerings Enable and activate existing partners through training, planning and joint selling activities Coordinate the technical and marketing aspects of integrated partnership launches Host regular business reviews with partners to drive accountability and report on success metrics Generate partner-sourced net-new sales pipeline and revenue Who You Are: 5+ years of partner-facing, quota-carrying experience in the cyber security and/or cloud security SaaS industry Proven experience in driving sales opportunities from lead generation to closure, eff

GitAIGoRust
D
📍 London, United Kingdom; United Kingdom, United Kingdom· Full-time· Remote
✓ Quality checkedCompany trend -92.3%

Our Channels & Alliances Team’s charter builds and activates a strategic, differentiated and high-impact partner ecosystem for our best-of-breed multi-cloud monitoring product, one partner at a time. As a Senior Partner Manager, you will recruit and develop channel partners that drive new customer adoption and revenue, including Regional and Global Systems Integrators, Managed Service Providers, and Value Added Resellers. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do: Identify and recruit new strategic channel partners to drive revenue growth Enable and activate existing partners through training, planning and joint selling activities Coordinate the technical and marketing aspects of integrated partnership launches Host regular business reviews with partners to drive accountability and report on success metrics Work hand-in-hand with Datadog’s regional enterprise and commercial sales organizations Generate partner-sourced net-new sales pipeline and revenue Who You Are: Experienced in 7+ years of partner-facing, quota-carrying business development, strategic alliances, or channel sales at a cloud services or software as a service organization Proven in driving sales opportunities from lead generation to closure, effectively negotiating agreements and building long-lasting partnerships Able to quickly comprehend technical concepts and architectural scenarios, and explain them to others verbally and in writing Proficiency in managing premier Cloud MSP partners will be advantageous Willing to travel 20-30% of the time Datadog values people from all walks of life. We understand not everyone will meet all the above qualifications on day one. That's okay. If you’re passionate about technology and want to grow your skills, w

O
📍 London, United Kingdom· Full-time
✓ High-confidence listingCompany trend -100%

From £114K/yr

Quick readStrong listing-quality and freshness signals

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. About Okta for AI Agents Okta secures access for 20,000 organizations and billions of users. Okta for AI Agents extends that work to the agentic shift. Deploying an AI agent is not like deploying traditional software. You are putting professional work output into production, and it needs deep integration, continuous tuning, and change management. Every agent needs an identity, a scope, an audit trail, and a way to be shut down when it goes wrong. Most enterprises have not built this yet. We are. We hire builders who see the cracks in enterprise agent identity that everyone else has learned to live with. The Role You are the most senior technical field authority for agent identity at Okta. Where a Senior FDE owns the outcome inside one account, you own the patterns that every account and every FDE inherits. You take the hardest and most strategic deployments yourself, set the reference architecture the team builds from, and turn what the field learns into the direction the product takes. You still write code. You also multiply the people around you, and you are the person product and engineering leadership call when an agent identity problem has no precedent. Responsibilities Own the reference architecture. Define the canonical agent identity, delegation, audit, and kill-switch patterns that Senior FDEs deploy across the portfolio, and keep them current as the standards and the product move. Lead the hardest accounts. Personally own the most strategic, regul

AWSRestMachine LearningAI
O
📍 London, United Kingdom· Full-time
✓ High-confidence listingCompany trend -100%

From £193K/yr

Quick readStrong listing-quality and freshness signals

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Are you ready to redefine the future of digital identity in the AI era? Okta’s UKI Strategic Account Executive Sales Team is hiring! Our Strategic Account Executives (SAE) are the visionary leaders who orchestrate and drive sales engagements for our most critical and prestigious UKI customers. In an era where Artificial Intelligence is transforming how enterprises operate, identity has become the new security perimeter. As an SAE, you won't just be selling software—you will act as a trusted, long-term advisor helping the C-suite safely navigate the AI revolution. You will build first-class Account Plans that map directly to your customers' overarching business strategies, digital transformation initiatives, and AI adoption plans. By championing value-based selling, you will translate complex technical capabilities into undeniable business outcomes, showing how secure identity is the ultimate enabler of modern enterprise innovation and ROI. You will collaboratively plan and orchestrate the execution of aligned account strategies, ensuring robust opportunity generation, deep relationship alignment, and flawless account governance. Expect to lead from the front: presenting Okta’s transformational proposals, negotiating high-stakes terms, and bringing down complex, multi-layered, seven-figure deals that deliver massive win-win scenarios for both the customer and Okta. Beyond managing existing relationships, you will hunt for new business leads that fit our idea

AWSGitRestMachine Learning
P
Relocation support. Relocation assistance is stated. This does not establish visa sponsorship.
📍 London, United Kingdom· Full-time
✓ Quality checkedCompany trend -100%

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here . We’re looking for a Director, Multi-Vertical (CPG, Tech, Auto, Travel, Telco, Ents, QSR, FinServe, Govt), UK to lead our monetisation efforts across the vertical. Reporting to the UK Managing Director, you'll be responsible for building this multi-vertical business in one of EMEA’s largest markets. You will be working closely with cross-functional partners to drive business results for our clients while delivering growth. You will be managing a team of senior sellers and be part of the UK Senior Leadership Team. You will be representing Pinterest externally and be our voice in the industry on relevant topics. This is a full-time position based in the UK, and our office is in London. What you’ll do: Lead our sales strategy and execution for the multi-vertical business in the UK Develop market and competitive assessments to identify and drive new

AWSGitRestAI
🔔

Get new lead junior senior sr software engineer full stack jobs in London, United Kingdom by email

Daily job updates · Unsubscribe anytime