ARNIA
Tech Lead / Senior Software Engineer | Python, React, AWS
Skills
19 days ago
Share this opportunity
Share this opportunity to other talents of your network:
✓ Offer them a visibility boost with clients.
✓ Help your contacts find their next job.
Important information
Location:
Bucharest, Romania
Work mode:
Onsite
Published on:
1 October 2026
What they need
We’re looking for a senior engineer who enjoys taking ownership of complex technical work, shaping solutions, and staying hands-on.
You’ll work across an AI-focused R&D portfolio, helping turn research and product ideas into reliable, production-ready systems. The role sits at the intersection of engineering, cloud infrastructure and AI/ML, with plenty of scope to influence technical direction.
What you’ll be working on
- Design and build production applications using Python and React
- Shape technical solutions across backend, frontend and cloud environments
- Work with AWS, Docker, Kubernetes, PostgreSQL and APIs
- Take projects from early-stage concepts through to production
- Collaborate closely with AI/ML engineers, scientists and product teams
- Contribute to architecture, engineering standards and reusable technical foundations
- Lead technical discussions, support other engineers and make pragmatic engineering decisions
- Step into a Tech Lead role when a project needs it
What we’re looking for
- Strong commercial software engineering experience, ideally 10+ years
- Solid hands-on experience with Python and React
- Good experience with AWS, Docker and Kubernetes
- Strong software engineering fundamentals: testing, clean code, code review and CI/CD
- Experience taking systems from prototype or early-stage development into production
- Comfortable working in technically complex environments with evolving requirements
- Able to communicate technical trade-offs clearly and work across different teams
Nice to have
- Kubernetes / Helm, Terraform / Infrastructure as Code
- PostgreSQL
- TypeScript / Node.js
- Distributed systems
- AI/ML or data-driven systems
- Previous Technical Lead or line management experience
The kind of person who will enjoy this role
- You’re curious, pragmatic and enjoy working across different technical challenges.
- You like understanding the bigger picture, making thoughtful engineering decisions, and working with people who care about building things properly.
- You’re comfortable balancing speed, quality and long-term maintainability, and you enjoy contributing beyond your immediate area of responsibility.
Share this job:
relocation package
competitive compensation packages
performance bonuses
flexible working hours
job rotation
learning through Arnia Academy
attractive projects
trainings
international work experience
referral program
medical benefits
Other offers great for you!
These companies are also looking for great profiles
Salutech
Ingénieur Logiciel IA
Freelance
Paris, France
Onsite, Hybrid
Skills
5 days ago
Quick apply
ClubSec
DevOps Senior AWS (janvier 27)
620
Freelance
92000 Nanterre, France
Hybrid
Skills
5 hours ago
Quick apply
LeHibou
Senior Cloud Engineer (AWS)
750€ / jour
Freelance
Brussels, Belgium
Hybrid
Skills
3 hours ago
Quick apply