Software Engineer, Billie
PHP & JVM/Kotlin
+ Virtual Shares Incentive Programs
2-5 days a week in office
Buy Now, Pay Later payments for business
Be an early applicant
Buy Now, Pay Later payments for business
101-200 employees
Be an early applicant
+ Virtual Shares Incentive Programs
2-5 days a week in office
101-200 employees
Company mission
To simplify purchasing for all companies and open up new opportunities for growth.
Role
Who you are
- Dual-Stack Proficiency: Strong professional production development experience in both PHP (e.g., Symfony or similar frameworks) and JVM languages (with a strong focus on Kotlin and Spring Boot). While you might have a deeper expertise in one, you are proficient and comfortable working in both environments
- Impactful Engineering: Typically 5+ years of hands-on software engineering experience, having built and scaled highly available, resilient systems in production environments
- Architectural Acumen: Proven track record of contributing to and influencing architectural designs for distributed systems and microservices. You enjoy tackling complex system design challenges
- DDD Conviction: A deep understanding of Domain-Driven Design principles and the ability to apply them effectively in your day-to-day work
- Cloud & Microservices Experience: Working experience with Microservices and Cloud-based development environments (e.g., AWS, event-driven architecture, CQRS)
- Agile Practices: Strong conviction towards and practical experience with Agile engineering practices such as Test-Driven Development (TDD), mobbing, and pair programming
- Ownership & Drive: Be self-organised, self-driven, and willing to take end-to-end ownership of initiatives from start to finish
- Communication: Excellent written and verbal communication skills in English, with the ability to articulate intricate technical concepts clearly to diverse audiences, fostering effective collaboration
What the job involves
- As a Software Engineer focusing on both PHP and JVM/Kotlin, you will be an integral part of our engineering team within Billie's Payments domain.
- This domain is the beating heart of our business, covering the intricate movement of funds – from initiation and settlement to transaction identification, reconciliation, and reporting.
- You will be instrumental in enhancing our current systems (where PHP plays a significant role) while actively contributing to our future, built upon a cutting-edge microservices architecture primarily using JVM/Kotlin.
- This role is for someone who thrives on understanding diverse technical and product landscapes, influencing architectural decisions, and applying Domain-Driven Design (DDD) principles across different stacks to deliver resilient and scalable financial products.
- You will tackle complex challenges, bridging the present and future state of our technology landscape
- Full-Stack Backend Development: Design, develop, test, deploy, maintain, and improve our mission-critical payment systems, utilising your expertise in both PHP (e.g., Symfony) and JVM technologies (primarily Kotlin/Spring Boot)
- Architectural Contributions: Collaborate with Senior Staff Engineers to design and refine the architecture of our high-throughput, fault-tolerant payment systems. This means contributing to strategic decisions that pave the way for scalable, secure, and resilient operations within the Payments domain, across both existing and new stacks
- Strategic Modernisation: Take ownership of improving and changing the current status quo, whether through smart refactoring of existing PHP applications or the addition of new services in JVM/Kotlin, ensuring seamless evolution
- Leading Microservices Adoption: Actively participate in our journey towards a truly decoupled microservices architecture, contributing to the conceptualisation, building, and deployment of new services that facilitate, orchestrate, and monitor all money movements behind Billie's products
- Championing Domain-Driven Design: Be instrumental in fostering a deep understanding and practical application of DDD across the team, guiding the design of software that intimately mirrors our business domains, ensuring clarity, maintainability, and strategic alignment, particularly for core payment functionalities
- Engineering Excellence: Drive continuous improvement in our engineering practices, contributing to the evolution of our CI/CD pipelines, advocating for fast feedback loops, and ensuring a culture of quality and automation across the Payments domain
- Cross-Functional Collaboration: Your impact will extend beyond code. You’ll work hand-in-hand with product managers, data scientists, and other engineering teams, translating complex business needs into elegant technical solutions and delivering features that directly accelerate Billie's success by evolving our payment capabilities
- Mentorship & Knowledge Sharing: Mentor and train team members, share knowledge across teams, and perform thorough code reviews, contributing to a high-performing engineering culture
Our take
Buy Now, Pay Later(BNPL) options have exploded in popularity in recent years, with companies such as Klarna and Clearpay providing an additional line of credit to customers allowing them to split the cost of their purchases over several installments. Billie is a BNPL built for business transactions, using machine-learning driven risk models to responsibly finance B2B purchases.
With over 100,00 customers processing more than €750 million on its platform, Billie does not face much competition in its market. While BNPL firms like Afterpay and Klarna could theoretically move into the B2B space, they are specialised in B2C financing and lack Billie's data on the B2B sector. Billie also boasts a range of features designed specifically for intra-company sales such as instant verification, invoicing tools and business payment options which give it a large advantage against any new rivals.
Billie has raised a significant amount of funding from investors, most recently in a 2021 Series C round. Additionally Its 2022 integration with Klarna, allowing companies with a Klarna installation to swiftly switch over to Billie's payment options for B2B sales has removed a major roadblock to its future expansion. This move, alongside its entrance into more markets in Europe, will likely speed the company's ascension to Unicorn status and solidify its market lead in the BNPL space.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (last 2 of 5 rounds)
Oct 2021
$100m
SERIES C
Jul 2019
$34.5m
SERIES B
Total funding: $150m
Company benefits
- Flexibility first: We come to the office for important events, but do not have a permanent office presence. Our teams decide how to get the best results
- 30 days vacation per year and 5 extra paid days to look after sick children
- Virtual Share Program
- German language courses from different language levels free of charge
- One-off relocation bonus to make your move easier
- Reimbursement of travel expenses and discount on local public transport in Berlin with the BVG
- Individual training budget of 1,000 euros for courses, conferences and more every year
- Free gym access, weekly yoga classes, healthy snacks, cereals, drinks and more
Company HQ
Kreuzberg, Berlin, Germany
Leadership
Aiga Senftleben
(General Counsel)Previously worked on the Legal Counsel at eBay and Paypal. Also worked at Funding Circle Deutschland as a General Counsel and is now a member of the Digital Finance Forum at the Federal Ministry of Finance (Germany)
Christian Grobe
(MD)Graduated from the Free University of Berlin with a Ph.D. in Political Science. Previously co-founded Funding Circle/Zencap where they served as the Managing Director. Also Worked as an Engagement Manager at McKinsey & Company.
Dr. Matthias Knecht
(Co-CEO)Previously co-founded Funding Cirlce/Zencap where they served as Managing Director. Also worked as an Engagement Manager at McKinsey & Company.
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