Java developers for hire, working as part of your team
Add Java engineering capacity while keeping control of your backlog, architecture and delivery process. Meet the proposed engineers and agree their roles before the engagement starts.
Experience your team can draw on
- 1,000,000,000
- financial transactions an hourFastPost accounting platform · developed for LegerityFastPost case study
- 300,000,000
- travel queries a dayThe hotel metasearch platform we helped buildHotel search case study
- Working model
- Engineers join your team under your technical direction and bring experience from the high-volume Java systems we have built.
- Location
- Direct employees in Poland, inside the EU; no subcontracting.
- Term
- Ongoing, typically a long-term cooperation; notice and staffing changes are agreed in the contract.
- Commercial model
- Monthly fee based on the named engineers and agreed roles.
- Stack
- Java 17 to 25, Spring Boot, Kafka, Hazelcast, Oracle Coherence and Apache Ignite, PostgreSQL, AWS and Azure.
Add capacity without handing over direction
Engineers you meet before starting
Review profiles and interview the proposed engineers. Agree the skills, responsibilities and team composition around the work you need delivered.
Your repositories and delivery process
Engineers work with your issue tracker, review practices and release process. Your team sets priorities and owns architecture decisions.
Java experience for demanding systems
Access experience with Spring, Kafka, data grids, PostgreSQL and cloud platforms. Specialist assignments are matched to the engineers available for the engagement.
A clear point of contact
A Stratoflow lead coordinates onboarding, staffing and escalation. Agree how progress is reviewed and how knowledge is documented throughout the engagement.
We are very pleased with our partnership with Stratoflow and, as we continue to grow, we expect to increase the numbers of developers that work with us on our projects. They have proven to be very skilled and flexible. They're extremely reliable, and they have a very good company culture of their own, which gives them a real edge compared to other providers that serve more as production shops rather than thought partners and creative problem solvers.
Choose the people, then establish the working rhythm
Discuss the gap
Review your backlog, current team, stack and delivery constraints. Decide whether additional engineering capacity fits the work and agree the roles required.
Meet the proposed engineers
Review profiles and interview candidates. Confirm availability, working-hours overlap, start dates and the monthly fee before signing.
Onboard into your process
Arrange access, environments and an initial task with your technical lead. Use the first delivery week to check communication, review and release practices.
Review delivery and plan handovers
Review progress through your usual delivery routines and demos. Plan staffing changes and knowledge transfer under the notice and transition terms in the agreement.
A monthly engagement with clear ownership
The monthly fee reflects the engineers, seniority, specialist skills and commitment required. The proposal states the included coordination, working arrangements, leave coverage and handover responsibilities. Timing depends on engineer availability and your onboarding requirements.
Your engineering leadership directs the work. Our lead supports onboarding, staffing and escalation, while engineers collaborate directly with your team. Agree useful delivery measures together rather than comparing unrelated teams by a vendor velocity score.
Team extension works best when you have technical direction and a backlog that needs more capacity. If you need an agreed implementation outcome, we can instead scope a modernization or performance engineering project.
Before we start
Can we interview the engineers?
Yes. You review the proposed profiles and interview candidates before agreeing the team. Replacement and transition arrangements are recorded in the contract.
How soon can engineers start?
A typical planning range is two to four weeks after an agreement, subject to availability, team size and onboarding access. We confirm proposed start dates during selection.
What working hours can we expect?
Engineers are based in Poland, with substantial overlap with UK and European working days. Working hours and overlap with teams in other regions are agreed before the engagement starts.
Who owns the code and intellectual property?
Work takes place in repositories you control. The agreement assigns ownership of the delivered work to you and records any third-party licensing requirements.
Can we change the team size?
Yes, subject to availability and the contract. Engagements are ongoing and typically long-term, so the team can grow or shrink with your roadmap; notice, scaling and handover terms are agreed before the engagement begins.
How is team extension different from a project engagement?
With team extension, your leadership owns priorities and technical decisions and our engineers work within your team. A scoped project establishes a defined implementation outcome, responsibilities and acceptance criteria.
Is this staff augmentation or team extension?
It covers the same need with one difference that matters. IT staff augmentation services usually place individual contractors; our software staff augmentation places Stratoflow employees, never subcontractors, with senior colleagues behind them. We call it development team extension because the engineers stay for the long term, and team extension services work best when the people who learn your system are still there a year later.
Why hire Java developers in Poland rather than offshore?
When you hire Java developers from us you get nearshore software development in Poland: Poland is one hour ahead of London (CET), so the working day overlaps the UK in full and the US East Coast in the morning. Offshore Java developers can cost less per hour, and the trade is time-zone overlap and turnover; our attrition is 7% a year. If you would rather hand over a whole project than add engineers, that is Java outsourcing, which we run as a Java development engagement.
When you need an agreed project outcome
Find the Java expertise your team needs
Tell us about your application, current team and upcoming work. We will discuss suitable roles and availability.