Full-Time
Java/Spring Boot Developer
Spring Boot, Java
Posted on 9/10/2026
TMS
11-50 employees
Independent defense-analysis consultancy and simulations
No salary listed
Toronto, ON, Canada
Hybrid
 Software Engineering (1) |
|---|
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- At least 7 years of experience.
- Strong hands-on experience with Java, Spring Boot, application modernization, and dependency upgrades.
- Experience troubleshooting Maven pom.xml files, builds, dependencies, and upgrade-related issues.
- Experience with Java and Spring Boot upgrades, build issues, compatibility, testing, and migration challenges.
- Support application upgrades from Spring Boot 2.7 to 3.5 and Java 11/17 to Java 21.
- Resolve build issues, compatibility problems, testing issues, and migration challenges associated with Java and Spring Boot upgrades.
- Python experience, particularly as a fallback or supporting skill.
tms (technisch-mathematische studiengesellschaft) is a small, employee-owned defense-focused think-tank in Bonn, Germany. It provides bespoke technical studies and software tools for security and weapon systems, rather than mass-produced hardware. The company combines theoretical analysis, computer simulations, and practical testing to solve complex problems such as CBRN threat response and the performance of advanced weapons like the TAURUS KEPD-350 and GBU-48. Its products are modeled analyses and simulation software that help clients understand and predict how systems behave under real conditions. What sets tms apart is its concentrated team of engineers, physicists, and mathematicians working independently and agilely, delivering tailored, high-end solutions without scale manufacturing. The company aims to supply crucial studies and technologies that underpin modern security solutions for defense clients, enabling better design, testing, and decision-making.
Company Size
11-50
Company Stage
Debt Financing
Total Funding
$170K
Headquarters
Bonn, Germany
Founded
1957
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See people who can refer or advise you
Simplify's Take
What believers are saying
- tms posted Angular and technical project roles through June 2026, signaling demand.
- Its website updated August 3, 2026, confirms active defense and security business.
- Freelancer listings in March 2026 show continuing project flow and hybrid delivery.
What critics are saying
- Bundeswehr concentration makes a single procurement cycle a company-level shock.
- CONET won DB IT-SysBw support in 2025, intensifying Bonn defense-software competition.
- If Bundeswehr insources simulation and web tooling, tms loses its core mission.
What makes TMS unique
- tms Bonn has 1970 roots and employee ownership, preserving specialist continuity.
- tms builds defense software, simulations, and testing, not commodity hardware.
- tms works in tiny teams of 2-7 engineers, enabling fast execution.
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Benefits
Flexible Work Hours
Hybrid Work Options
Phone/Internet Stipend
Wellness Program
Mental Health Support
Conference Attendance Budget
Company News
Busch Group USA has acquired Total Maintenance Solutions (TMS) in Milan, Illinois, enhancing its market position in the vacuum and overpressure industry. TMS will operate as an independent division, retaining its staff and continuing production. The acquisition aims to leverage strengths in the food packaging and protein markets for growth. TMS was previously acquired by St. Martin Holdings in 2018. Busch Group has an annual revenue of nearly €2 billion.
TMS and JIXING will join forces to expeditiously develop and launch TMS-007 globally, facilitated by the form of a Joint Development Committee.