Senior Software Engineer, Seven Senders
Java
More information about location
Office located in Alexanderplatz, Berlin
Cross-border parcel shipping platform for Europe
Open for applications
Cross-border parcel shipping platform for Europe
201-500 employees
Open for applications
More information about location
Office located in Alexanderplatz, Berlin
201-500 employees
Company mission
To provide unlimited shipping from a single source.
Role
Who you are
- 5+ years of backend development experience with strong proficiency in Java and the Spring Boot / Spring ecosystem
- Solid experience with microservices and event-driven architectures (Kafka, SQS, or equivalent), and contract-first API development with OpenAPI
- Hands-on knowledge of both NoSQL (MongoDB) and relational (MySQL) databases, including data modelling and performance tuning
- Strong grasp of Domain-Driven Design and software architecture, with proven experience integrating third-party APIs and designing for resilience against unreliable upstreams
- Production experience with Docker, Kubernetes, and cloud-native AWS environments; familiarity with GraalVM native images and Vue + TypeScript is a plus
- If you meet the above qualifications and are excited about the opportunity to join our team, we encourage you to submit your application today
What the job involves
- We are looking for a Senior Software Engineer to join our Carrier Integration Team
- You will design, build, and operate the backend services that integrate Seven Senders with Europe's carriers end-to-end; from label generation, routing, and returns to ingesting and normalizing parcel tracking events from dozens of carrier APIs, EDI feeds, and webhooks
- You will own the full lifecycle, from architecture to production, on a modern, event-driven JVM stack built around Domain-Driven Design
- Design, develop, and operate backend microservices using Java and Spring Boot, following Domain-Driven Design and clean architecture principles
- Build event-driven pipelines using Kafka and SQS to ingest, normalise, and distribute high-volume carrier-tracking events
- Integrate new carriers across REST, SOAP, EDI, and SFTP, designing resilient clients for third-party APIs
- Design efficient, scalable data models in MongoDB and MySQL
- Deploy and operate containerised services on Kubernetes (AWS, Datadog, Prometheus), writing well-tested, contract-first code and actively contributing to design discussions, code reviews, and agile ceremonies
Our take
eCommerce continues to expand across borders, and retailers need seamless solutions to reach customers in different European markets. Seven Senders is a leading European delivery platform, catering to the growing demand for efficient and cost-effective international shipping.
It offers an all-in-one platform that simplifies cross-border shipping. By connecting retailers with the best local carriers in Europe, Seven Senders is ensuring parcels are delivered quickly and cost-effectively, while also offering tailored solutions for each target market. Alongside this, it also offers CO2-neutral shipping options, allowing retailers to meet growing environmental expectations.
The company has already seen impressive success, working with major brands like ASOS and Tamaris to facilitate their cross-border shipping needs. As eCommerce expands and sustainability becomes an even bigger priority, Seven Senders is in an exciting position for continued success.
Freddie
Company Specialist at Welcome to the Jungle
Insights
-3% employee growth in 12 months
Company
Funding (last 2 of 3 rounds)
Apr 2021
$37.7m
SERIES C
Jun 2019
$18.3m
SERIES A
Total funding: $63.5m
Company benefits
- Flex your work: Our hybrid model lets you work remotely 60% of the time and enjoy our vibrant office 40% of the time. With our work abroad policy, you can work from nearly anywhere worldwide for up to two months each year
- Enjoy our vibrant workplace: You choose where you work best from our range of flexible working spaces. Take a break in our spacious lounge, get some fresh air on the balcony or at the terrace, or enjoy a game of table tennis, kicker, or PlayStation with colleagues
- Maximise your benefits: With our flexible benefits wallet, you will have a monthly allowance to purchase vouchers for top brands like Zalando and Spotify. You can also use your funds towards an Urban Sports Club membership, or BVG ticket. Also, you can get additional tax benefits for bike leasing via JobRad
- Find your balance: Need a moment of reflection or prayer? Our Relax Room offers a peaceful space. Plus, you can bring your children along—we have a dedicated Kids’ Room to keep them entertained
- Build bonds beyond work: Our team knows how to connect and have a good time. From cooking events to watching football to company lunches and festive parties, our events allow us to share our different cultures and strengthen our bond as a team
- Boost your language skills: We offer German and English language courses to anyone looking to improve their communication skills and confidence. Your partner is also welcome to join our language courses
- Make work pawsome: We have a dog-friendly office and welcome your furry friends, creating a joyful environment for everyone. And yes, colleagues will be happy for a chance to pet and cuddle your adorable dog
- Bring your best talent onboard: Recommend friends, acquaintances, or former colleagues you think would be an excellent fit for us. As a token of our appreciation, our Referral Program offers rewards of up to 3000 euros for successful hires based on your recommendations
- Hardware your way: You can choose between a Mac or Windows laptop and an iPhone or Android smartphone. We also provide a mouse, keyboard, and additional monitor to improve your home office setup. (The hardware provision may vary based on your responsibilities and department)
Company HQ
Mitte, Berlin, Germany
Leadership
Johannes Plehn
(Co-Founder & Co-CEO)Previously worked in Logistics for Mercedes and Porsche Consulting. They then served as the COO at Wine in Black before co-founding Seven Senders in 2014.
Jan Halberstadt
(Co-CEO)Joined Seven Senders in 2024. Prior to that, they were the VP of Operations at Reibus, a General Manager and Director of Germany at TIER Mobility, and the Head of Sales Germany at Deliveroo.
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