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BAE Systems

(Senior) Java Developer

Location:  Poznan, Poland
Location flexibility:  1 office day / week, 2 office days / week, 3 office days / week – Hybrid options are dependant on role and can range from fully remote to on-site full time, 4 office days / week
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Job Description

Location(s): Poznan / hybrid

BAE Systems Digital Intelligence is home to 4,500 digital, cyber and intelligence experts. We work collaboratively across 10 countries to collect, connect and understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments.

Job Title: (Senior) Java Engineer

Location: Poznan/ hybrid working

About The Role

Our agile team delivers a dynamic platform that supports high quality, enterprise scale applications.

  • You will be working in a rapidly growing and engaging programme. Sharing your knowledge and expertise with other engineers, to deliver advanced technological solutions.
  • You will act as the intermediary between architects and developers, turning high-level designs into quality engineering activities to build and deliver elegant solutions to our clients. This will allow you a degree of autonomy and responsibility, as you will be empowered to make the most appropriate technological decisions to meet the requirements of the programme.
  • You will be developing and participating in design phase of microservice architecture solution.
  • Troubleshoot complex issues.
  • Identify process improvements and recommend/perform changes.

Skills and Experience

Essential skills:

  • Java (preferably 21)
  • Spring and Springboot
  • API Development, REST
  • PostgreSQL and Relational Databases
  • DevOps processes and CI/CD pipelines

Desirable skills:

  • AWS (SQS, RDS, S3, CloudWatch)
  • Queue/Messaging (Kafka, SQS, SNS)
  • Iceberg or other datalake solution
  • Unit Testing
  • Jenkins
  • JavaScrip or Python is nice to have

Compensation

  • Permanent or B2B contract
  • private medical care
  • lunch voucher
  • multi-sport card
  • social events
  • cross company free share program
  • life insurance
  • flexible working hours and hybrid working
  • subsidy to help you create your home office space

Life at BAE Systems Digital Intelligence

We are embracing Hybrid Working. This means you and your colleagues may be working in different locations, such as from home, another BAE Systems office or client site, some or all of the time, and work might be going on at different times of the day.

By embracing technology, we can interact, collaborate and create together, even when we’re working remotely from one another. Hybrid Working allows for increased flexibility in when and where we work, helping us to balance our work and personal life more effectively, and enhance well-being.

Diversity and inclusion are integral to the success of BAE Systems Digital Intelligence. We are proud to have an organisational culture where employees with varying perspectives, skills, life experiences and backgrounds – the best and brightest minds – can work together to achieve excellence and realise individual and organisational potential.

Division overview: Capabilities

At BAE Systems Digital Intelligence, we pride ourselves in being a leader in the cyber defence industry, and Capabilities is the engine that keeps the business moving forward. It is the largest area of Digital Intelligence, containing our Engineering, Consulting and Project Management teams that design and implement the defence solutions and digital transformation projects that make us a globally recognised brand in both the public and private sector.

As a member of the Capabilities team, you will be creating and managing the solutions that earn us our place in an ever changing digital world. We all have a role to play in defending our clients, and this is yours.

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Working at BAE Systems

Hybrid - Hybrid options are dependant on role and can range from fully remote to on-site full time

A little flex time – We offer a range of hybrid and flexible working arrangements depending on the role you apply for – explore your options with our recruiter during the application process.

Company benefits

Adoption leave
Annual bonus
Buy or sell annual leave
Collaboration spaces
Cycle to work scheme
Electric Car Salary Sacrifice
Employee discounts
Enhanced maternity leave – 26 weeks paid, up to 52 weeks total, with the option of returning to work on reduced hours for the first 13 weeks
Enhanced paternity leave – 4 weeks for eligible employees
Enhanced pension match/contribution
Family health insurance
Fertility treatment leave
Gym membership – Discounts available
Health insurance
In house training
Learning license
Lunch and learns
Mental health support
Mental health first aiders
Mental health platform access
Modern office
Neonatal leave
Open to compressed hours
Open to job sharing
Open to part time work for some roles
Open to part-time employees
Pregnancy loss leave
Private booths
Referral bonus
Relocation packages
Reservist leave – 15 days
Salary sacrifice
Secure on-site parking
Share options
Shared parental leave
Mentoring

Awards & Accreditations

Most loved - Large companies

Top 5 - Most loved - Large companies

Flexa awards 2026
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Company employees:

Around 110,000

Hiring in countries

Australia

Malaysia

Qatar

Singapore

United Kingdom

Office Locations