Senior Java Backend Engineer

Deploja-Ab; Solna kommun; On-site; SEK 700,000 - 1,000,000; Full time

Job summary

Deploja-Ab is seeking a consultant with strong experience in building distributed, high-volume Java services and scalable backend systems. You will deploy, monitor, and iterate on production services while collaborating with clients and internal teams on ML-powered and enterprise platforms.

The role emphasizes reliability, performance, and quality in production-grade code, with opportunities to work on innovative projects and new technologies within our consulting business.

Qualifications

• Must have experience writing distributed, high-volume Java services and deploying them in production.
• Skilled in designing and building scalable backend systems and APIs.
• Solid grasp of data structures and algorithms and applying them to pragmatic design.
• Excellent analytical and problem-solving abilities; able to communicate with technical and non-technical audiences.
• Enjoys fast iteration, experimentation, and bringing new technologies into production.

Skills

Distributed systems design

Backend API design

Data structures & algorithms

Analytical problem-solving

Communication to technical & non- tech

Experimentation & rapid iteration

Reliability & performance focus

ML-powered services

Speech technologies

Enterprise platforms

Tools

Java

Job description

We now have a new requirement and are looking for a consultant colleague with the qualifications listed below. The position is part of our consulting business, which means you will be employed by us and work either with clients or on internal projects and assignments.

As part of your application, you may be presented to clients/partners as part of the recruitment process. If selected for the assignment, you will be employed by us and work either with clients or on internal projects and assignments as part of our consulting business.

Your Profile (Must-have requirements)

• You have experience writing distributed, high-volume Java services and know how to deploy and keep them running in production.
• You have experience designing and building scalable backend systems and APIs.
• You have a good understanding of data structures and algorithms, and know how to apply them to design pragmatic solutions.
• You have excellent analytical and problem-solving skills and can communicate your ideas to technical and non-technical audiences.
• You enjoy working in environments where you can experiment, iterate quickly, and help bring new technologies into production.
• You care about reliability, performance, and quality, and know what it means to ship high-quality production code.

Experience working with ML-powered services, speech technologies, or enterprise platforms is a plus, but not required.

Application deadline:

03-11-2026

About Us

We currently employ experienced consultants in areas such as System Development, AI, Machine Learning, Testing, Cloud, Infra DevOps, and IT Project Management.

Working at Deploja is something entirely different from working at an ordinary consulting company - and we are really proud of that. So, what makes us unique?

We simply offer more than just a high salary and greater freedom; that's just the beginning. With us, you'll find the work environment and opportunities you deserve. Welcome to Deploja, where the grass is indeed greener!