Senior Backend Software Engineer

Trading 212; Poland; On-site; Full time

Benefits offered by this job

Generous remuneration package

Annual bonuses

Private health insurance

Sports card

25 days paid vacation

Spacious game room

Job summary

A leading trading platform in Poland is seeking software engineers to develop innovative services in a microservice architecture. Candidates should have experience with common communication protocols and a strong grasp of RDBMS concepts. The role offers a chance to impact millions of investors, the opportunity for rapid personal growth, and a generous compensation package, including excellent social benefits and 25 days of paid vacation per year.

Qualifications

• Experience developing services in a microservice architecture.
• Good familiarity with common communication protocols.
• Prior experience with a web framework.
• Deep understanding of RDBMS concepts.

Responsibilities

• Develop solutions with a holistic approach to problem-solving.
• Engage in the full SDLC from requirements to deployment.
• Ensure code is performant, scalable, and resilient.
• Work in autonomous teams with short release cycles.

Skills

Experience with microservice architecture

Familiarity with communication protocols (HTTP/WebSockets, AMQP)

Understanding of RDBMS concepts

Ability to design high-performance databases

Education

Ongoing or completed Computer Science education

Tools

Docker

Java 17

Spring

NodeJS

TypeScript

Job description

Our mission is to enable everyone to build wealth

We reinvent how trading and investing work by creating exceptional products people love.

Fostering a culture of excellence and high velocity is the key to our success.

Today, we serve over 4.5 million clients, with more than €30 billion in assets under management - a testament to the scale and trust we’ve built in just a few years.

What You’ll Do

• Develop solutions by taking a holistic approach to problem‑solving - we expect you to understand the business problems, our service architecture and the underlying technologies and infrastructure and take everything into consideration.
• Engage in forming requirements, design your implementation, code it, test it, deploy and monitor it – the full SDLC is led by our software engineers. You have full ownership of your code and you have to maintain it in good shape and refactor it when there’s a good opportunity for improvement.
• Develop for performance, scale and resilience – your code will run in an uncompromising environment. Downtime, latency and data loss are intolerable.
• Work in compact, autonomous teams with short release cycles - we rely on agile, independent teams of sharp and driven people with just the right amount of processes to steer off anarchy and not sacrifice velocity.
• Learn from your colleagues and share your knowledge with them. We have to grow as the company grows and mutual honest feedback is one of our most reliable weapons.

What You Need To Have

• Experience with developing services in a microservice architecture. To meet our business needs we’ve built a highly‑scalable and performant system consisting of 200+ microservices.
• Good familiarity with common communication protocols. We expect you to be comfortable with using HTTP/WebSockets & AMQP communication and have the ability to decide when to use one over the other.
• Prior experience with at least one commonplace web framework, no matter the language. Our system is language‑agnostic and we give the engineers the opportunity to choose the specific language based on its appropriateness for the particular task. The microservice architecture allows us to use the newest technologies and we’re constantly striving to keep a healthy balance between an up‑to‑date system and a battle‑tested and familiar one.
• Deep understanding of RDBMS concepts. We expect you to know about indexing, transactions, isolation levels, locking mechanisms and you should be able to design high‑performance databases.

Nice to have

• Experience with in-memory databases (e.g. Redis/Memcached).
• Ongoing or completed CS education.

Our tech stack

• Languages and frameworks: Java 17 - Spring, Go, NodeJS - TypeScript
• Databases: Apache Cassandra, MariaDB, Redis, Elasticsearch, TimescaleDB, ClickHouse
• Messaging: Apache Kafka
• Web servers: Nginx, HAProxy
• Version control: Git, GitLab
• Containerization: Docker
• Logs & Monitoring: Grafana, Kibana, Telegraf

What we offer

• Challenges that will help you grow and realize your potential really fast
• Opportunity to make a big Impact - you will build innovative services used by millions of investors to build wealth
• Work with smart, spirited, helpful, high‑performing colleagues with a common goal
• An environment where nothing is set in stone
• Appreciation for your talent and ideas
• Generous remuneration package including annual bonuses
• Excellent social benefits package, including private health insurance, sports card and 25 days of paid vacation per year
• Delicious treats and a spacious game room

Are you ready to accelerate your career with us? We'd love to hear from you!

We thank all applicants, but only candidates selected for an interview will be contacted.

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