Senior Backend Engineer/ Elixir
- Remote
- Poznań, Poland
- PLN 19.5 - PLN 26.5 per month
- Elixir
Job description
Our client is solving modern organizations' biggest challenge – navigating global employment compliantly with ease. They make it possible for businesses of all sizes to recruit, pay, and manage international teams. Their team works across 6 different continents, all positions are fully remote, and innovation is at the heart of everything they build.
Job requirements
What this role can offer you
• Complex and meaningful challenges — solving them will enable people and businesses to live and operate in any country of the world.
• Significant impact on the business — early-stage company where each change is amplified by growth.
• Freedom to organize your work and life — no mandatory standups, recurring meetings or ceremonies.
• Competitive salary, stock options, flexible paid time off, and a set of perks and benefits.
• Supportive environment where you are encouraged to challenge the dogmas and pursue innovation.
• Strong team of experienced engineers who will support and facilitate your professional growth.
What we offer
Salary: 19,500 - 26,500 PLN net (B2B) - depending on your skills
Remote first approach
Transparent, async-first, documentation-driven organization
AI-native work environment
What do we need for this position?
• Design and maintain server-side applications with a focus on high availability and scalability.
• Collaborate in a product trio, working closely with designers and product managers to ship impactful features.
• Drive technical excellence by promoting best practices in code quality, security, and automated testing.
• Proactively troubleshoot and optimize existing systems to ensure top-tier performance.
• Stay curious – research emerging technologies and help us innovate our tech stack.
• Practical experience designing or adopting agentic/automation workflows and improving them through iteration.
• Ability to think in systems: define specs clearly, break down plans, instrument verification, and close the loop on quality.
You'll be a great fit if you have:
• 5+ years of experience as a Backend Engineer in cross-functional, agile environments.
• Strong engineering fundamentals and a track record of shipping production systems that are secure, reliable, and scalable.
• Strong proficiency in Elixir for backend development.
• Hands-on experience with Phoenix Framework, building robust and scalable services.
• Solid SQL skills and experience with Postgres, including schema design and performance tuning.
• Proficiency in REST API design and microservices architecture within cloud environments (preferably AWS).
• CI/CD experience (GitLab, GitHub, Jenkins or similar).
• Excellent communication skills in English (B2/C1) and Polish, with the ability to explain complex technical concepts to various stakeholders.
Nice to have:
• Kubernetes, Docker, AWS.
• Next.js, React / Vue / Angular.
• Knowledge of Infrastructure as Code (Terraform/CloudFormation).
• Ability to lead technical workshops or mentor junior developers.
• Project Experience: Drives the success of major projects or multiple concurrent projects, providing strategic technical leadership. Often consulted for expertise on high-impact decisions.
• Technical Skills: Possesses deep expertise across multiple technical areas and the ability to drive innovation within the team. Skilled at identifying and mitigating technical risks and ensuring the robustness of solutions.
• Responsibilities: Provides technical leadership across projects, mentors other senior developers, and shapes the team's technical direction and practices.
Backend (Elixir) — Platform-Specific
• Oversees the design and implementation of large-scale Elixir systems.
• Drives innovation within the Elixir team.
• Ensures best practices in building scalable, maintainable backend services.
Our recruitment process
Only 3 steps long:
Culture & mission fit meeting with Recruitment Team (abt. 45 minutes)
Competency interview with team representatives (abt. 60 minutes)
AI fluency assessment via AI CRED (aicred.ai) — a short online test measuring competency across 5 AI dimensions.
If any other step of the recruitment process is necessary, we will inform you!
And finally, the decision — after which we can say "welcome on board."
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Perks and benefits
Paid time off and sick days also for B2B contracts
Education & Training Budget
Remote first approach with flexible working hours
Spacious and stylish office if you prefer working on site
Organise team office space in your city
Private healthcare & life insurance
Co-financed multisport membership
Book formula - make a book-wish and we’ll grant it!
Being part of company events and meetups
English lessons with a native speaker
A brand MacBook to work on
Additional budget for team outings
Got questions? Feel free to contact us!
You will be in good hands! Our team will help guide you through the recruitment process and maintain communication throughout as well as share feedback with you.
Kinga Szałek
I see work as a genuine passion. For me, it’s about finding fulfillment and joy in what I do. By discovering new people, their unique talents and understanding their perspectives, I have the opportunity to build collaborative teams that continually grow. I invite you to join Appunite to be part of our thriving Team.
Milena Stareńczak
I believe that the Human Being always comes first: their story and needs. Only then we are able to come up with the best solutions. It's an approach that shines through in my role as a recruiter and psychologist on a daily basis. Still in search of creating the best recruitment process and candidate experience.
Magdalena Adamczak
Can a workplace be made up of inspiring people who are the missing piece of the company's puzzle and together create a space for activity and growth? Yes, at Appunite on a daily basis, the curiosity is learn about people and other perspectives never leaves me. I'm in doing sourcing amazing people, sounds good! Are you in?
Maciej Matwiejczyk
I'm passionate about making recruitment simple and effective, always upholding honesty and transparency throughout the process. I focus on the bigger picture in recruitment, ensuring every step aligns with long-term success. My approach prioritizes support and meaningful feedback for everyone involved, building strong connections and lasting matches.