
Payhawk · Sofia
Company Mission Payhawk is a leading global spend management solution for scaling businesses. Headquartered in London and combining company cards, reimbursable...
Company Mission
Payhawk is a leading global spend management solution for scaling businesses. Headquartered in London and combining company cards,
reimbursable expenses and accounts payable into a single product; its future-facing technology enables finance teams to control
and automate company spending at scale.
The Payhawk customer base includes fast-growing and mature multinational companies in 32 countries including LuxAir and
Wagestream. With offices in New York, London, Berlin, Munich , Barcelona, Paris, Amsterdam, Vilnius and Sofia; Payhawk is backed
by renowned investors such as Lightspeed Venture Partners, Greenoaks, QED Investors, Bek Ventures and Eleven Ventures.
Our values include supporting flat hierarchies, taking ownership and responsibility, seeking and providing feedback, managing
constructive critique, and speaking our minds. We understand that the best ideas don’t all come from the same place, so we
encourage diversity and inclusion in all areas of our work.
The future of fintech is about more than money, and we believe in work-life balance, continual learning, and empowered
teams. We’re also on a journey to measure and improve our environmental and social impact. From virtual cards to digital
subscriptions, our software and automation help take paper out of the equation for our customers, too.
We’re changing the world of payments, and we’re looking for an exceptional team to help us.
About the Role
To achieve our visionary goals, we are scaling up our robust engineering team and looking for a Full Stack Software Engineer to
meet the compelling challenges we face. Our product consists of many services that are not limited to a single technology so it’s
important that you are technology agnostic and eager to learn new stuff. You’ll be responsible for delivering entire, highly
complex features to production. As part of a team of talented and highly experienced individuals, you’ll have the opportunity to
shape everything. Our goal is to produce the best solution for our customers.
Being part of the Payhawk team means that you’ll be developing a world-class product in the fast-growing fintech industry. We
deliver an exceptional solution, and to continue doing so, we seek out the top 1% engineering talent.
Responsibilities
end-to-end delivery.
functionalities where applicable, while contributing to the architecture and proposing scalable, sustainable solutions.
being implemented.
technical goals.
compatibility.
supervision.
direction.
Requirements
PostgreSQL, Kubernetes, Docker, Google Cloud, React, React Native, Apache Kafka.
embedding models, and MLOps practices.
Company Benefits
At SumUp, we create tools that help small businesses get paid easily, manage money confidently, and grow sustainably. Our mission is to empower merchants around the world, and at the heart of that mission is a robust, scalable Payments Platform developed in Sofia. We’re now expanding this platform with a new dedicated Pricing team – and we’re looking for Software Engineers (Mid & Senior) who want to build core services from the ground up and make a lasting impact across SumUp. ABOUT THE TEAM Pricing is an important part of any payments business. The Pricing team will build and own the services that determine how SumUp’s products and transactions are priced worldwide. This includes maintaining existing pricing tools and creating a future-ready pricing platform that enables precision, flexibility, and transparency. We’ll be a small, high-impact team with strong engineering ownership. You’ll help define how pricing logic is modeled, how it evolves, and how it's applied at scale for millions of transactions across our ecosystem. ABOUT THE ROLE As a (Senior) Software Engineer in our Pricing team, you’ll help design, build, and maintain a scalable and compliant pricing platform for SumUp’s payment ecosystem. You’ll participate in architectural discussions, guide technical decisions, and deliver projects independently or in collaboration with your squad. Your work will directly shape how SumUp evolves its pricing capabilities and supports business growth. WHAT YOU’LL DO * You’ll design, develop, and maintain scalable backend services for our pricing systems. * You’ll develop backoffice tools for pricing management. * You’ll write high-quality, maintainable, and scalable code that meets coding standards and best practices. * You’ll provide comprehensive documentation and automated good test coverage, improve code quality * You’ll collaborate with other software, QA and DevOps engineers to ensure smooth deployment, continuous integration, and support for the software that we deliver in production environments. * You’ll actively participate in code reviews with other software engineers to improve code quality and maintainability. * You’ll support technical discussions during requirements analysis and scope definition. * You’ll participate in team retrospectives and document lessons learned. YOU’LL BE GREAT FOR THIS ROLE IF YOU HAVE * You have several years of programming experience, including in Golang * You have experience with building and consuming RESTful APIs * You’re familiar with Docker, AWS, Kubernetes (user, not admin experience) * You have a DevOps mindset * You have experience with SQL & NoSQL DBs. We’re working with Postgres and Kafka * You understand fundamental system architecture, software design principles, data modeling, and API design * You are have an open to feedback, collaborative approach to teamwork and excellent problem-solving skills * You take pride in engineering and have a keen sense of ownership of the work that you do WHY YOU SHOULD JOIN SUMUP * You’ll play a key role in a high-impact team working on one of the most critical services at SumUp, while being part of a global scale-up of 3000+ people from 60+ countries, spread across 4 continents. * Shape the future of SumUp’s pricing capabilities and business strategy. * You’ll receive 25 days’ paid leave, increasing with tenure, and paid vacation for certain occasions. You’d enjoy a paid 1 month Sabbatical vacation every 3 years. * You’ll receive an individual learning budget and can take 10 days paid educational leave to expand your skillset. You'll have access to hackathons. * You'd enjoy other great benefits such as additional health and life insurance; funded therapy & coaching sessions with licensed psychotherapists; co-sponsored Multisport card; Child birth/adoption bonus; free shuttle buses from Joliot-Curie metro station; a long list of discounts; attractive referral programme; monthly budget for food vouchers (100 EUR) and flexible benefits (40 EUR) , and more. About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse teamOpens in new window of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website, and follow our journey on LinkedInOpens in new window, InstagramOpens in new window, and TikTokOpens in new window. Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.
ABOUT US The Financial Times (FT) is one of the world’s leading business news and information organisations. We are recognised globally for our authority, integrity, and accuracy. We provide a broad range of essential services, including news, comment, data, and analysis, to a growing audience of internationally minded business people. Here at the FT, gold-standard journalism is just the beginning. Our 500-people-strong Product & Tech team keeps us ahead of the ever-changing digital landscape by delivering cutting-edge products to over one million digital subscribers every day. Our plans for growth rely on a diverse, dedicated, and dynamic group of product, tech, delivery, and data specialists – everyone’s welcome in this friendly, forward-thinking team. STORYFINDING TEAM The Storyfinding team sits at the heart of innovation between the FT’s newsroom and technology. We collaborate closely with the Computational Journalism team to uncover and scale new ways of finding stories hidden in complex or unstructured data. Our mission is to turn bespoke investigations into reusable tools and data products that empower more journalists to tell stories that otherwise would be untold. This is where engineering meets journalism — you can see the direct impact of your work on the FT’s homepage. Since the team was formed, Storyfinding has helped uncover more than 10 exclusive stories, including Europe builds for war as arms factories expand at triple speed and Prices for used Teslas drop in US and Britain. We are a cross-functional team of Software Engineers, Data Engineers, ML Ops Engineers, and Product Managers. We balance strong engineering practices with the fast-moving needs of the newsroom, delivering quickly while keeping our systems reliable, secure, and easy to evolve. ABOUT THE ROLE OVERVIEW We are looking for a Senior Software Engineer 1 to play a key role in designing, building, and operating the backend systems and services that power Storyfinding’s investigative and editorial work. This is a hands-on senior individual contributor role with a primary focus on backend software engineering. You will be responsible for designing and building robust backend systems and services, while also maintaining that data engineering is a key component of the work. You will contribute to and maintain critical data pipelines and data products, helping to establish patterns and standards that enable the team to scale its impact. WHAT YOU’LL WORK ON Some example projects include: * Designing and operating data pipelines that ingest, clean, enrich, and model complex datasets for investigative reporting. * Building resilient, observable data workflows to support high-traffic and time-critical newsroom events such as elections or major economic announcements. * Developing shared data infrastructure and tooling that turns one-off investigations into reusable capabilities for the wider newsroom. * Working with unstructured and semi-structured data sources (documents, filings, scraped content, APIs) to create high-quality, queryable datasets. * Collaborating with journalists, product managers, and engineers to translate editorial questions into scalable data solutions. KEY RESPONSIBILITIES * Design, build, and maintain scalable and resilient backend services, APIs, and infrastructure. * Ensure high standards of software quality through testing, documentation, observability, and security across all systems. * Design, build, and maintain scalable, reliable data pipelines and datasets in a cloud environment. * Work across OLTP and OLAP data stores to support both application-driven and analytical use cases. * Partner closely with journalists and other technical colleagues to shape data solutions that directly support storytelling. * Lead by example in engineering best practices, including code review, documentation, and pragmatic architectural decision-making. * Support and mentor more junior engineers through pairing, feedback, and knowledge sharing. * Identify areas where AI and new technologies can help in the newsroom and be able to propose ideas. * Actively participate in the process of requirements gathering and have the desire to have regular catch-ups with editors and journalists if that’s needed. ABOUT YOU We’re looking for someone curious, pragmatic, and motivated by impact. You enjoy working with messy real-world data, care deeply about reliability and clarity, and are comfortable operating in an environment where priorities can shift quickly around editorial deadlines. ESSENTIAL SKILLS * Strong experience as a backend engineer designing and building production-grade distributed systems and APIs in a cloud environment. * Excellent Python skills for developing backend services, system integration, and data processing. * Solid experience as a data engineer with a vital skill set in maintaining production data pipelines and using workflow orchestration tools like Apache Airflow. * Experience working with cloud platforms, particularly AWS. * Familiarity with modern engineering practices including version control, CI/CD, and automated testing. * The ability to communicate clearly with both technical and non-technical stakeholders. * Interest in exploring new technologies and approaches related to AI and Agentic AI. * An interest in journalism, investigations, or using data to answer real-world questions. * Data Science (DS) experience or education is highly valuable for this role, as we leverage AI heavily for many of our use cases. DESIRABLE SKILLS * Strong SQL skills and experience designing and working with relational and analytical databases. * Experience with databases such as BigQuery, Redshift, PostgreSQL, SingleStore, or MongoDB. * Experience working with unstructured or semi-structured data at scale. * A solid understanding of data modelling, data architecture, and trade-offs between different storage and processing approaches. * Comfort contributing to backend software engineering tasks beyond pure data pipelines. * Exposure to building internal tools or lightweight user-facing applications. * Experience with building simple user interfaces or/and the desire to do so (e.g., using frameworks like Streamlit). CHARACTERISTICS WE VALUE * Inquisitive and analytical, with strong problem-solving skills. * Pragmatic and delivery-focused, able to balance technical quality with newsroom deadlines. * Collaborative and generous with your knowledge. * Comfortable working with ambiguity and evolving requirements. * A systems-level thinker who can see how individual pipelines and tools fit into a broader platform. * Motivated by learning and continuous improvement. * A collaborative team member who thrives in cross-functional environments and values collective success. OUR TECHNOLOGY We don’t expect you to be an expert in everything. Our current stack includes: * Languages: Python, SQL * Cloud & Infrastructure: AWS * Data Pipelines & Orchestration: Apache Airflow, AWS ECS * Databases: BigQuery, Redshift, PostgreSQL, SingleStore, MongoDB * Version Control & CI/CD: GitHub, CircleCI * Frontend (small part of the role): Streamlit This is a unique opportunity to use your technical skills to contribute to data journalism. You’ll be making content for the FT’s readership, using data to make news accessible, understandable, and impactful. If this sounds like a role that aligns with your expertise and ambitions, we’d love to hear from you! IN RETURN, WE CAN OFFER YOU * Annual bonus scheme * 25 days paid leave * 24/7 Employee Assistance Program * Life Insurance * Enhanced Parental Leave policy * Food Allowance * Multisport Card * Both in house and external training programs * Your own training dedicated budget (for conferences, courses etc.) We currently operate a hybrid model which requires staff to work onsite 50% of the time, subject to role requirements & regular review. While flexible working requests will be considered, not all patterns are suitable for all roles. We believe this balanced approach supports flexibility and protects our culture, making collaboration and communication easier, building stronger relationships and team cohesion, and supporting peer learning. We reserve discretion on reasonable notice to change this approach either generally or for specific individuals or teams. Our commitment to diversity, equity and inclusion We believe in the power of unique perspectives and want all voices in our organisation to be heard, respected and valued. A supportive workplace is one where employees feel they can be themselves and operate to their full potential. We are committed to removing barriers for everyone, with a focus on addressing those faced by underrepresented groups. Accessibility We are a disability confident employer and Valuable 500 signatory. Please let us know if you require any reasonable adjustments/personalisation as part of the application process or to enable you to attend an interview. If you would like to discuss your requirements or have any questions, email talent@ft.com and a member of our team will be happy to help. Further information At the FT, we embrace innovation and the use of technology and appreciate that individuals may leverage AI tools as part of their job application process. Whilst we are happy for you to use AI to assist with your application, it is essential that all information provided is authentic and accurately represents your skills, experience, and qualifications. Candidates should be aware that the use of AI throughout the application process may be monitored to ensure a fair and transparent hiring process for all. Please beware of fraudulent job postings and offers claiming to be from the Financial Times. All legitimate opportunities will direct you to apply through the official Financial Times careers site, and the FT will never ask for financial information, payments, or referrals to third parties during the hiring process. If you have any concerns about the legitimacy of a job posting or suspect any scam activity, please contact talent@ft.com. Interested in the FT but don’t see the right role yet? Join our Talent Community to receive exclusive updates, featured jobs, and insights into working at the FT. #LI-MG1
SumUp enables businesses to get paid easily, process orders quickly, sell online instantly and manage their money more efficiently. We create the tools businesses need to make their business and their customer experience thrive. The payments processing platform, consisting of other sub-platforms, has powered SumUp’s global business for more than 10 years now. It’s developed in Sofia by the Payments Tribe, composed of several teams (squads). Each squad is cross-functional, autonomous and co-located, working on its part of the platform end-to-end. We are scaling and improving existing products, while developing new ones - an exciting time to join. You would make an impact by improving and co-creating our existing and new microservices architecture platforms, solving scaling and new development challenges. Scalability and high availability are among our focus areas. What you’ll do * Design and evolve systems that process millions of transactions reliably and at scale * Build and maintain backend services in a microservices architecture * Contribute to API design for internal services and external integrations * Write clean, maintainable, and scalable code with strong test coverage * Participate in architectural discussions and drive technical decisions * Collaborate closely with engineers, QA, and DevOps to deliver production-ready systems * Continuously improve engineering practices, including leveraging AI to iterate faster You will be great for this role if you have: * Strong programming experience in any modern language (e.g. Go, Java, Python, Kotlin, etc.). We care more about how you think and design systems than the specific language you use * Solid understanding of system design, scalability, and distributed systems * Experience building APIs and working with data storage systems * Ability to learn new technologies quickly and pragmatically * Strong problem-solving skills and a structured way of thinking * Ownership mindset and collaborative approach to teamwork * Interest in incorporating AI as part of your development workflow Nice to have: * Experience with cloud platforms (e.g. AWS) * Familiarity with containers and orchestration (Docker, Kubernetes) * Experience with event-driven systems and messaging (e.g. Kafka) If you don’t meet every requirement but are excited about the role, we’d still love to hear from you. Why you should join SumUp * Make an impact on a global scale - our systems serve millions of merchants * Learn from experienced engineers while working on complex, real-world problems * Be part of a tech-agnostic team that uses the right tools for the job * Collaborate with SumUppers worldwide on large-scale fintech products used by millions, based in our Sofia office (office-first setup). * Access a €2,000 annual L&D budget to attend conferences or advance your career through education. * Enjoy 25 days of paid leave (increasing with tenure), plus paid vacations for special occasions and a 1-month sabbatical every 3 years. * Benefit from extra perks like health and life insurance, co-sponsored Multisport cards, childbirth/adoption bonuses, discounts, a referral program, 100 EUR monthly food vouchers, 40 EUR flexible benefits, and more. About SumUp We believe in the everyday hero. Small business owners are at the heart of all we do, so we create powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a 'team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that the small business owners we partner with can be successful doing what they love. SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, color, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind. SumUp will not accept unsolicited resumes from any source other than directly from a candidate. Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.