Senior .NET Engineer

Meniga builds financial intelligence for the world's leading banks - 100M+ users, 30+ countries. We're not the brand on the app. We're the layer underneath it - the one that makes the data meaningful, the experience personal, and the bank worth opening.Meniga’s offices are in London, Reykjavik, Warsaw and Cairo.

Senior .NET Engineer 

Financial intelligence for 100M+ users across the world's leading banks. 

THE WORK 

We're scaling engineering to match a growing business and a full commitment to AI. The platform is in active transformation - performance, architecture, and AI - and the engineers driving it care deeply about getting it right. You'll join one of three squads - each with real ownership, real clients, and real consequences: 

You will join one of our core engineering squads, each owning critical parts of our platform:

• Premium Features - Extend, maintain, and re-architect high-value functionality, built for our biggest bank clients. You keep it running, you make it better.
• SaaS Product Reinvention - Take an established product and bring it to the standard it deserves - technically sound, modern, and built for what comes next.
• AI & On-Prem Applications - Own a portfolio of three applications - one AI-powered, all running on-premises inside bank environments. You maintain them, evolve them, and prepare them for a hybrid on-prem/SaaS future.

WHAT YOU’LL DO 

• Own services end-to-end -not just features, but their reliability, evolution, and the client relationship around them 

• Co-own the squad backlog -you’re not an order-taker; squads are small and autonomous, and you help shape direction aligned with the company’s vision 
• Hold a high engineering bar -code reviews, testing discipline, pushing back when shortcuts threaten reliability - not as bureaucracy, but because you care what ships 

WHAT WE'RE LOOKING FOR 

• Accountability over activity -you own a feature from the first conversation to the client's environment, and you care what happens after it ships 

• Business-minded -you understand what's at stake for the client, engage with Product and Commercial as partners, and treat Support tickets as signal, not noise 

• Can-do under constraints -on-premises bank environments are demanding; you find a way, not an excuse 

• Strong, production-hardened C#/.NET, with real experience in database-heavy systems - this is not CRUD territory 

• AI-native -you use AI tools as a natural part of how you work (Cursor & Claude Code) 

TECH 

Must have:  C# / .NET  ·  MSSQL or PostgreSQL 

Nice to have:  Kafka  ·  Azure  ·  RabbitMQ  ·  GCP  ·  Kubernetes  ·  Terraform  ·  Python  ·  Helm Charts ·  Fintech 

Most systems are on premises at client sites and actively migrating toward cloud. You'll work with real constraints, not just clean-slate architecture.

WHAT YOU GET 

• Competitive salary + equity: B2B, 20-29k PLN + VAT, + ESOPs 
• Hybrid-2 days in office, 3 remote
• Private healthcare, fitness, meal & phone allowance 
• A team where technical opinions are welcomed, not managed 
• Software that runs inside real global banks, used by millions of people every day 
  

HOW WE HIRE 

1. Screening- 30 min call. Real projects, real decisions, real trade-offs.
   
2. Meet the CTO- 15 min. We want to understand how you think and what you care about. So does he.
   
3. 90 min interview- onsite or call. One real problem (coding + design + AI), system design, and a conversation with a senior team member. AI tools are welcome.