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Clera

Backend Engineer (Mid-Level)

Berlin
Salary
€80,000 - €120,000
Level
Mid
Work type
On-site · Berlin
Visa
Sponsors visas

Open. First seen 14 October 2026.

Apply on jobs.ashbyhq.com →

The team: Engineering HIRES STEADILY

This role is one of 246 open in Engineering. 180 were posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

LLM (118 of 246), TypeScript (112 of 246), Python (103 of 246), React (92 of 246), Machine Learning (61 of 246), PostgreSQL (44 of 246), JavaScript (41 of 246)

OTHER ROLES ON THIS TEAM

From the team and dates on Clera's own job board.

About the role

About the Role

Join the core infrastructure team at an early-stage energy technology company, building the backend systems behind dynamic electricity plans and reliable billing. You will help develop scalable services for billing and energy-market communication.

What You'll Do

  • Design backend systems that reduce complexity in billing and energy-market workflows.
  • Scale core infrastructure to support growing transaction volumes and market demands.
  • Ship features and improvements through rapid iteration and practical engineering decisions.
  • Raise technical standards through code reviews, architecture decisions, and mentorship.

What We're Looking For

  • At least 3 years of hands-on experience building and shipping reliable backend systems in production.
  • Strong TypeScript and Node.js skills, including asynchronous programming.
  • Experience with PostgreSQL and ORM-based data access, such as Drizzle or similar tools.
  • Experience building Next.js backend services, including API routes or server components.
  • Familiarity with distributed systems and designing scalable, maintainable services.
  • Experience integrating Stripe payments and billing workflows.
  • Strong computer science fundamentals through formal education or equivalent practical experience.
  • Fluent or native-level German proficiency, C1 or higher.
  • Interest in early-stage environments, an ownership mindset, and evidence of strong technical ability through projects, research, competition, or founding work.
  • Broad application-building experience and clear written and verbal communication skills.

Compensation & Benefits

Annual salary of €80,000 to €120,000. Visa sponsorship is available.

Location

On-site in Berlin, Germany, five days per week.

Other openings for this role

2 open postings for this role in Berlin, first posted 4 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.

See Backend Engineer salaries in Berlin →

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