Senior Back-End Developer - Relocation to Poland

Talan Group; Warszawa; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Private medical insurance

Life insurance

Training and career development

Smart Office Pack

Job summary

An international consulting group is seeking a Senior Back-End Developer for a hybrid role based in Warsaw, Poland. The successful candidate will have over 7 years of experience and will be responsible for designing and maintaining backend systems, mentoring junior developers, and implementing best practices in code quality. A strong background in financial services technology and proficiency in agile methodologies are essential for this position. Join a multicultural team and work on impactful international projects.

Qualifications

• Over 7 years of experience as a Backend Developer.
• Strong background in financial services technology.
• Hands-on expertise with modern backend architecture.

Responsibilities

• Design, develop, and maintain backend systems.
• Implement best practices in code quality and testing.
• Mentor junior developers and foster high-performing teams.
• Work with technical leads on modern architecture.
• You will be Accountable for execution teams inside the product: Software delivery, best practices

Skills

Agile methodologies

DevOps

Java

MongoDB

Elastic

Kafka streams

Interpersonal communication

Education

Bachelor's degree in Computer Science

Master's degree in Finance

Fluent English (C2)

Tools

Kafka streams

MongoDB

Elasticsearch

Job description

Senior Back-End Developer - Relocation to Poland

Talan is an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultants in 21 countries and a turnover of €850M, we are committed to delivering impactful, future-ready solutions.

Talan at a Glance

Headquartered in Paris and operating globally, Talan combines technology, innovation, and empowerment to deliver measurable results for our clients. Over the past 22 years, we’ve built a strong presence in the IT and consulting landscape, and we’re on track to reach €1 billion in revenue this year.

Our Core Areas of Expertise

Data & Technologies: We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI.

Cloud & Application Services: We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.

Management & Innovation Consulting: We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies.

We work with major global clients across diverse sectors, including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications.

Job Description

As a Senior Backend Developer give support to the Technical Lead & Junior developers, you will be a trusted partner to the business in developing a roadmap to ensure the delivery of technology solutions. You will contribute to the transformation and growth by building high performing IT teams and continuously evolving the platforms that support our business.

We need somebody like you to help us in different fronts:

• Design, develop, and maintain backend systems and services to support mission-critical applications.
• Implement and enforce best practices in code quality, testing, CI/CD, and performance optimization.
• Mentor junior developers, fostering high-performing agile and DevOps teams.
• Work together our “technical leads” helping them in the adoption of modern backend architecture.
• You will be Accountable for execution teams inside the product: Software delivery, best practices

WHAT WE ARE LOOKING FOR

• Highly experienced Backend Developer with more than 7 years in IT, specializing in designing and implementing scalable backend solutions, optimizing technical processes, and leading development teams.
• Strong background in financial services and investment banking technology, with hands‑on expertise in modern backend architectures, data streaming, and cloud-native solutions.
• Adept at translating business requirements into robust, secure, and efficient software systems.

Qualifications

EDUCATION

• Bachelor's degree in computer science, information systems, engineering, mathematics, or similar.
• Master's degree in finance, business or data science would be an asset.
• Fluent English, C2 desirable (work is largely in English) and fluency on Spanish or Polish would be an asset.

REQUIRED SKILLS:

• Experience working with Agile and DevOps delivery teams.
• Experience managing developers and implementing strategies on code review, pull requests, ....
• Knowledge of latest software architecture (e.g., public cloud, hybrid cloud, microservice architecture).
• Hands‑on experience with streaming big data technologies (Kafka streams, Java, MongoDB, Elastic).
• Strong interpersonal and proactive communication skills, ensuring transparency and alignment.

DESIRED SKILLS:

• Knowledge of Investment Banking Products and Wholesale Banking.
• Ability to organize team and prioritize tasks within the sprint.

Additional Information

What do we offer you?

• Full‑time contract.
• Smart Office Pack so that you can work comfortably from home.
• Training and career development.
• Benefits and perks such as private medical insurance, life insurance.
• Possibility to be part of a multicultural team and work on international projects.
• This is a hybrid position based in Warsaw, Poland.
• Possibility to manage work‑permits.

If you are passionate about development & tech, we want to meet you!

Talan Spain is committed to non‑discrimination based on gender, race, ideology, or any other grounds, in accordance with the company’s Equality Plan and current regulations on gender equality between women and men (Royal Decree‑Law 6/2019).