
Ably · London
Our everyday digital experiences are in the midst of a realtime revolution. Whether chatting alongside a livestreaming event, receiving realtime financial infor...
Our everyday digital experiences are in the midst of a realtime revolution. Whether chatting alongside a livestreaming event,
receiving realtime financial information, or working with colleagues in an online collaborative environment - consumers simply
expect realtime digital experiences as standard. At Ably we’re not just witnessing this revolution, we’re powering it - at scale.
At the heart of our mission lies a commitment to putting developers first. Ably provides a suite of products to build, extend, and
deliver powerful digital experiences in realtime, delivering billions of messages for millions of devices every day and supporting
organizations like Harness, EA, Panasonic and HubSpot.
Working at Ably means helping to build the infrastructure and technology that will power and shape the future of the internet. The
opportunity in front of us is immense. And we’d like your help.
The Pub/Sub team owns the core backend that underpins Ably's entire edge messaging platform. This is a rare opportunity to work on
genuinely hard distributed systems problems at planet scale; designing and improving the infrastructure that developers and their
users depend on in production every day.
You'll be hands-on, driving the development of new functionality and initiatives to scale and improve Ably's core Pub/Sub
platform. We work in an AI-first engineering culture: AI tools are part of how we plan, prototype, and iterate - but engineers own
every technical decision, and human judgment is the quality bar that everything is measured against.
You can read more about the core concepts of working on a truly distributed system in our blog post here.
LiveObjects state synchronisation layer, and AI Transport, the messaging backbone purpose-built for AI agent communication,
focussing on shipping new features, performance improvements, bug fixes and maintenance.
full ownership of correctness, architectural quality, and what actually ships. Fast iteration is expected; shortcuts in quality
are not.
interesting and challenging technical problems.
important problems developers face when building on Ably.
the developers and companies building on our platform.
that AI alone can't provide.
about what you're building, talking about technical decisions, or contributing to the broader developer conversation around the
problems Ably solves.
We’re tackling planet-scale problems and our ambitions are a testament to that. You’ll join a successful, deeply motivated and
collaborative team that thrives on innovation, experimentation and autonomy. To get a sense of life at Ably, visit our careers
page. You can also read about the origins of Ably's core values on our blog.
We believe in fostering a culture that's built on inclusivity and mutual respect among all team members, and we recognise that
each individual is different and will want to be supported in their role in different ways. We provide a range of perks and
benefits to aid folks' development and wellbeing, allowing them to be their best selves and do great work.
Old Street) and we get together as a company twice per year. Aside from that, you’re welcome to work wherever suits best for
you.
options programme.
enjoy your birthday).
recover.
that you have everything you need to work comfortably.
skillset.
We believe our differences as individuals is what makes us great. Our people are at the heart of what we do, and we encourage
everyone to be their most authentic self at Ably: we see inclusivity and openness as fundamental to creating long-term success as
an organization. We encourage applications from all backgrounds regardless of age, disability, gender, sexual orientation,
parental status, race, religion, educational background or neurodiversity. Ably has an amazing opportunity ahead of us, and we
want anyone to be able to contribute to that opportunity.
If you enjoy working as part of a technology company, value open source, and love solving hard problems - then we’d love to hear
from you, regardless of whether you fit the job description exactly or not. If in doubt, drop us an email; we’d be more than happy
to give you some advice on your application.
Our everyday digital experiences are in the midst of a realtime revolution. Whether chatting alongside a livestreaming event, receiving realtime financial information, or working with colleagues in an online collaborative environment - consumers simply expect realtime digital experiences as standard. At Ably we’re not just witnessing this revolution, we’re powering it - at scale. At the heart of our mission lies a commitment to putting developers first. Ably provides a suite of products to build, extend, and deliver powerful digital experiences in realtime, delivering billions of messages for millions of devices every day and supporting organizations like Harness, EA, Panasonic and HubSpot. Working at Ably means helping to build the infrastructure and technology that will power and shape the future of the internet. The opportunity in front of us is immense. And we’d like your help. ABOUT THIS ROLE As the Technical Lead for Developer Experience at Ably you will report directly to our CTO and co-own the DevEx vision and strategy, transforming our dashboard, documentation platform, and control plane into a world-class experience. You are a senior, hands-on engineer who’s passionate about building for developers like yourself; someone who’ll obsess over the developer journey and elevate the user experience of the Ably platform. You’ll blend deep full-stack expertise with a strong product mindset and lead a team of five engineers where the feedback loop is immediate, because you and your team are the target users of the very ecosystem you are building. DAY TO DAY YOU WILL * Obsess over developer experience. You’ll have broad responsibility for elevating how developers interact with Ably’s platform and services, partnering with the DevEx PM as a unified leadership team to deliver a developer experience that becomes a reference point for the industry. * Lead technical execution and vision. You’ll lead a team of five engineers building customer-facing web applications and own the technical architecture and design decisions for our dashboard, docs platform, marketing website, and billing UI. * Drive a product-first engineering culture. You’ll foster an environment where engineers are themselves principal stakeholders of product features, and obsess over customer outcomes. You’ll challenge the "feature factory" mentality and build a team that takes true ownership of the product. * Thrive in a rapid iteration environment. You’ll operate in a high-velocity workspace where PMs, customers, and engineers co-create features. You’ll lead the team in working full-stack to iterate, improve, and ship improvements quickly. * Champion AI-assisted development. You’ll be a catalyst for AI adoption across the team. You’ll leverage LLMs and AI tools to accelerate velocity without compromising on engineering integrity. * Guide engineering outcomes and quality. You’ll set and enforce high standards for code review, testing, and production readiness. You will participate in incident response and coordinate with the Infrastructure team on platform dependencies and deployments. * Mentor and grow the team. You’ll manage performance, career development, and hiring. You will hold the team accountable for delivery commitments while providing the mentorship needed to turn engineers into product-minded leaders. WE'D LOVE TO TALK IF YOU HAVE * A natural empathy for developer customers because you are the target audience. You are genuinely excited about building developer tools and instinctively understand what good looks like. You're fluent in API design, documentation, and the nuances that differentiate a great developer journey. * Extensive experience leading teams at B2B SaaS or API-first companies. You have a track record of building product-minded engineering cultures where teams take initiative and ownership of product outcomes. * A strong software engineering background with expertise in React, TypeScript, and modern JavaScript, alongside backend experience in Ruby on Rails or Node.js. You're comfortable writing code and building prototypes using our APIs, and have built and shipped customer-facing web applications at scale. * An AI-first mindset. You champion the use of LLMs and AI tools as productivity multipliers for the team. You see AI as an enabler for higher velocity and output, not a replacement for engineering judgment. * Experience at a startup or growth-stage company or adaptability to thrive in a fast-paced, agile environment with a focus on rapid iteration. To be effective in this role you’ll need excellent communication and cross-functional collaboration skills. BONUS POINTS IF YOU HAVE * Experience delivering solutions used by software developers (developer tooling or APIs) or similar technical personas. * An understanding of pub/sub and familiarity with distributed systems and event based architectures. WHAT’S IT LIKE TO WORK AT ABLY? We’re tackling planet-scale problems and our ambitions are a testament to that. You’ll join a successful, deeply motivated and collaborative team that thrives on innovation, experimentation and autonomy. To get a sense of life at Ably, visit our careers page. You can also read about the origins of Ably's core values on our blog. We believe in fostering a culture that's built on inclusivity and mutual respect among all team members, and we recognise that each individual is different and will want to be supported in their role in different ways. We provide a range of perks and benefits to aid folks' development and wellbeing, allowing them to be their best selves and do great work. * A remote-first and flexible work environment. UK-based teams come together in person once per month in our London hub (next to Old Street) and we get together as a company twice per year. Aside from that, you’re welcome to work wherever suits best for you. * Equity. We’re a growing start-up and we want all team to members to share in the success of the company through our EMI share options programme. * Enhanced holiday allowance. Our policy provides Ablyans with 28 days of paid annual leave (27 regular days, plus a day off to enjoy your birthday). * Enhanced parental leave package, so that you can take the time you need to get to know your new family member, rest and recover. * Home workstation budget of £500 on joining (and £150 p/a thereafter), so that your home office is set up to serve you well and that you have everything you need to work comfortably. * Personal learning and development budget of £1000 annually, and 5% L&D time during working hours to focus on improving your skillset. * Private healthcare with BUPA. * Medical cash plan to cover a range medical and dental costs. * Mental wellbeing coaching and counselling from Self Space. * Monthly wellbeing budget via Juno. * Life assurance and income protection. * Access to Tech & Cycle to Work schemes. * Weekly snack allowance for our end-of-week “Need To Know” meeting. * A fully-paid one-month sabbatical after five years with Ably. DIVERSITY, INCLUSION & BELONGING AT ABLY We believe our differences as individuals is what makes us great. Our people are at the heart of what we do, and we encourage everyone to be their most authentic self at Ably: we see inclusivity and openness as fundamental to creating long-term success as an organization. We encourage applications from all backgrounds regardless of age, disability, gender, sexual orientation, parental status, race, religion, educational background or neurodiversity. Ably has an amazing opportunity ahead of us, and we want anyone to be able to contribute to that opportunity. If you enjoy working as part of a technology company, value open source, and love solving hard problems - then we’d love to hear from you, regardless of whether you fit the job description exactly or not. If in doubt, drop us an email; we’d be more than happy to give you some advice on your application.
ABOUT US Engelhart was founded in 2013 by BTG Pactual Group as a commodities trading company. Our business model is “asset light” and highly diversified – giving us the ability to adapt effectively and nimbly to changing market conditions. We have assembled successful multidisciplinary teams, leveraging advanced fundamental analysis with deep quantitative and weather research capabilities. Our activities are underpinned by strong risk management practices and by powerful technology and operational excellence. We have exceptional teams with diverse global backgrounds and decades of experience, and are driven by a highly collaborative culture, across products and competencies. In 2024, Engelhart acquired Trailstone, a global energy trading and technology company. The acquisition provides us with new expertise, analytics and proprietary technology which is being used to provide risk management and optimisation services to help maximise the value of our clients’ renewable power. The acquisition also expanded Engelhart’s capabilities into physical natural gas across North America, a critical fuel to support the energy transition. Our talented and experienced individuals work together according to its four company values: Performance, Agility, Collaboration, Entrepreneurship. ABOUT THE ROLE This is an exciting opportunity for a Python Software Engineer with approximately five years of experience to deepen their current expertise in commodities trading, while becoming a key member of our Risk, Finance & Compliance technology function within the Engelhart Technology team. Operating with a high degree of autonomy and offering direct exposure to stakeholders & business users, this role will give someone the opportunity to take end-to-end ownership of initiatives, from requirements gathering and solution design through to production deployment and ongoing support. Working in close collaboration with a small, dynamic team, this role provides a unique opportunity to influence Engelhart's technology landscape and deliver initiatives with tangible business impact. This team is delivery-focused, fostering strong collaboration, open technical and business discussions, as well as a culture of continuous improvement. The ultimate objective is to enable informed decision-making across our business through reliable, scalable and well-designed technology solutions. This Software Engineer with have the following responsibilities; * Designing, developing, maintaining and enhancing in-house systems, as well as integrations with third-party platforms. * Working closely with Engelhart's Risk & Finance teams to gain a strong understanding of business requirements, translating them into well-defined technical solutions. * Providing technical support to Risk, Finance and Front Office users - particularly in the use of shared internal Python libraries, cloud infrastructure and access to enterprise data. * Contributing to the ongoing evolution of Engelhart's technology platform, including architectural design, identification of improvement opportunities and proposal of scalable solutions. * Designing and implementing new data visualisations for internal dashboards and reporting tools. * Performing data cleansing, enrichments and transformation using efficient and scalable tools and techniques. * Developing and maintaining data integration services and query interfaces for internal consumption. * Participating in, and contributing to, technology projects that support key business initiatives. ABOUT YOU This individual will be a strong Python developer with current experience in a commodities trading environment. In addition to commodities experience, which is an essential criteria to be considered for this role, we believe the following technical skills & experiences will best set someone up for success at Engelhart; Technical Skills: * Strong proficiency in Python, including common analytical and visualisation libraries (e.g. Pandas, NumPy, Plotly). * Experience building APIs using Python frameworks, preferably FastAPI. * Familiarity with AWS services such as Lambda, Step Functions, Cognito, ECS/Fargate, DynamoDB, CloudWatch and CDK. * Familiarity with containerisation and orchestration technologies (Docker, Kubernetes). * Understanding of parallel and distributed data processing concepts. Soft Skills: * Strong analytical thinking, logical reasoning and problem-solving abilities. * A collaborative team player with strong interpersonal skills and experience working with distributed or remote teams. * Willingness to share knowledge, mentor others and continuously learn from peers. * Self-motivated and proactive, with the ability to work independently and manage priorities with minimal supervision. Additional Experiences that are not necessary, but highly desirable: * Experience designing or building event-driven architectures. * Experience with applying AI tools, large language models and agent-based workflows to improve business processes, developer productivity or data analysis. * Familiarity with Model Context Protocol servers and related approaches for connecting AI agents securely to internal systems, APIs, databases and business tools. What we offer * Competitive compensation and participation in Engelhart’s discretionary bonus plan. * 25 days of annual holiday entitlement, excluding UK public holidays. * Robust benefits package such as medical, dental, life insurance, generous pension contribution, and supplemental benefits partially subsidised by the Company. * Eligibility to receive external and internal training in accordance with our Training & Development Policy. We believe in inclusivity and are therefore dedicated to ensuring all employees – across gender identity, race, ethnicity, sexual orientation, religion, life experience, background and more – feel welcome and included in the company. We promote diversity because we believe it is essential to our ability to think holistically.
Some key info for you: 🌱 We were founded in 2007 💰 We have provided over $3bn of funding to small businesses so far 🚀 We have been named in CNBC & Statista Top 150 UK Fintechs for 2025 🌍 We're a global team, with a dynamic presence in 6 key locations around the world 🧠 We're a thriving community of over 290 innovative minds 👩🏾 🤝 👨🏼 We're a vibrant melting pot, celebrating over 27 nationalities in our team 🏢 Our team brings experience from over 740 previous companies, from startups to global giants 🎯 We have just been named as one of FinTech’s Finest 50 by Welcome to the Jungle 💪 We’re proud to be an accredited Real Living Wage employer, ensuring everyone is paid fairly for the great work they do Our Product & Engineering Team: Liberis is building the embedded finance platform that lets partners around the world offer innovative funding products to their small business customers. We're a growth-stage fintech with teams in London, Nottingham, Atlanta, Stockholm, Munich and Mumbai, and we’re building a global Product, Data & Engineering team that thrives on autonomy, ownership, and is focused on impact! Our teams solve real-world problems for small businesses, shaping products that unlock opportunity at scale. Engineering is going through an AI-first transformation, rethinking how teams are structured and how they ship. It's changing what a small team can do! We empower our teams to make decisions, move fast, and take full responsibility for the solutions they deliver. You’ll join a team where curiosity is encouraged and collaboration across Product, Data, Delivery and Engineering is the norm. The role: At Liberis, we’re building a global engineering team that thrives on autonomy, ownership, and focused on impact. Our engineers don’t just write code — they solve real-world problems for small businesses, shaping products that unlock opportunity at scale. We're hiring across a number of teams in our Engineering org, so we'd love to have a conversation about where you could make the biggest impact! You'll start with an informal chat with Chess (our Internal Recruiter), who will give you more insight into Liberis and what you're looking for next. From there, we'll talk you through the teams we're hiring for and look at which roles could be the best fit. Whether you're passionate about building customer-facing products, scaling platforms, working with data, or exploring how AI can transform the way we build software, we're looking for engineers who enjoy solving complex problems and taking ownership of what they deliver! The interview process: * Screening call with Chess (Internal Recruiter) (30 mins) * Video interview with the Hiring Manager (45 mins) * In person code pairing interview with a member of Engineering team (1 hour) * Video interview with the wider Liberis team (1 hour) What We Think You’ll Need * Proven success writing code in two or more programming languages. * A willingness to learn our tech stack - mostly C# .net, Node and React. * Proven experience developing APIs and services * An understanding of working with Agile methods, such as Extreme Programming, Kanban, or Scrum. * Resilience in early-stage business situations, where requirements are evolving and experimentation is required. * Bonus points if you have experience of cloud technologies (we are moving to GCP); experience using highly collaborative methods such as ensemble, mob, or pair programming; experience writing financial software; or experience with Test Driven Development. N.B - there is an ‘on-call’ element to this role, which Chess will outline at the screening stage Next steps If this opportunity feels like the right fit for your next career move, we’d love to hear from you! Even if you don’t meet every requirement, don’t hesitate to apply or reach out to Chess (Internal Recruiter) on chess.crossley@liberis.com Our hybrid approach Working together in person helps us move faster, collaborate better, and build a great Liberis culture. Our hybrid working policy requires team members to be in the office at least 3 days a week, but ideally 4 days. At Liberis, we embrace flexibility as a core part of our culture, while also valuing the importance of the time our teams spend together in the office #LI-FC1