Audited engineers. No names until terms clear.

TypeScript, Node.js, React, PostgreSQL, AWS

• Shipped the self-serve onboarding flow that took a B2B SaaS from sales-led to 41% self-serve revenue.
• Owns a Node.js API serving 90M requests/day behind an event-sourced PostgreSQL write model.
• Reduced infrastructure cost per tenant 34% by replacing per-tenant workers with a shared queue runtime.
• Runs the product-engineering guild; introduced trunk-based development across 5 squads.

Rate floor

€47/hr

Experience

7yrs

Start

Available now

Kotlin, Compose, Android, gRPC

• Owns an Android app with 14M monthly active users; crash-free sessions held above 99.8% for 3 years.
• Led the full Compose migration of a 900-screen app, shipped incrementally over 5 releases.
• Cut cold-start time 58% via baseline profiles, startup tracing and dependency-graph pruning.
• Built the modularisation strategy (62 Gradle modules) that halved incremental build times.

Rate floor

€57/hr

Experience

12yrs

Start

1 month

Java, Spring Boot, Kafka, Oracle, Kubernetes

• Delivered the SEPA instant-payments module for a tier-1 bank: 1,800 TPS, 7-second end-to-end settlement.
• Decomposed a 2.4M-line core-banking monolith into 23 services with strangler-fig migration, zero outages.
• Owned PSD2 / strong-customer-authentication compliance work across 3 regulated markets.
• Ran the on-call rota for a 24/7 payments platform; reduced Sev-1 volume 62% in 18 months.

Rate floor

€52/hr

Experience

11yrs

Start

Available now

Python, Triton, CUDA, Ray, Kubernetes

• Serves 4.2B inference requests/month on Triton + Kubernetes with a 22ms p95 budget.
• Cut GPU cost per million tokens 47% via continuous batching, quantisation and KV-cache reuse.
• Built the model-rollout system (shadow, canary, auto-rollback) used by 11 ML teams.
• Wrote the CUDA kernels behind a custom re-ranker, 3.1x faster than the off-the-shelf implementation.

Rate floor

€62/hr

Experience

9yrs

Start

Available now

Go, AWS, Terraform, OPA, Threat modelling

• Led SOC 2 Type II and ISO 27001 readiness for a fintech processing €900M/year, both passed first attempt.
• Built policy-as-code guardrails (OPA) blocking 2,400 non-compliant infrastructure changes in year one.
• Ran red-team exercises that surfaced a privilege-escalation path in the internal IdP before external audit.
• Reduced critical CVE mean-time-to-patch across 190 repositories from 21 days to 3.

Rate floor

€65/hr

Experience

12yrs

Start

1 month

Spark, Flink, Iceberg, Python, dbt

• Moved 480 nightly batch jobs to Flink streaming, dropping data freshness from 8 hours to 90 seconds.
• Runs an Iceberg lakehouse over 1.4PB with automated compaction and time-travel restores.
• Built the lineage + data-contract enforcement layer that stopped 90% of downstream schema breakages.
• Cut warehouse cost 38% by pushing aggregation into pre-materialised streaming views.

Rate floor

€54/hr

Experience

10yrs

Start

2 weeks

TypeScript, React, Next.js, GraphQL

• Owns a design system consumed by 34 product teams; 1.2M weekly sessions across web and embedded webviews.
• Cut Largest Contentful Paint from 4.1s to 1.3s on the main funnel, lifting checkout conversion 11%.
• Migrated 240k lines from CRA to Next.js App Router incrementally, without a feature freeze.
• Built the accessibility audit pipeline that took the flagship app from 64 to 98 Lighthouse a11y.

Rate floor

€50/hr

Experience

8yrs

Start

Available now

Rust, Raft, RocksDB, C++, gRPC

• Implemented a Raft-backed metadata store in Rust holding 2.1B objects with sub-5ms median reads.
• Designed the compaction scheduler that removed 70% of RocksDB write-stall incidents under peak load.
• Published internal formal model (TLA+) for the replication protocol; caught 3 split-brain edge cases pre-launch.
• Mentored 12 engineers; ran the architecture review board for the storage organisation.

Rate floor

€72/hr

Experience

15yrs

Start

1 month

Kubernetes, Go, eBPF, Terraform, Prometheus

• Ran multi-tenant Kubernetes for 180 services across 4 clusters; 99.97% control-plane availability over 24 months.
• Shipped an eBPF-based network profiler that cut mean incident triage from 47 minutes to 9.
• Reduced cloud spend €41k/month by right-sizing workloads with VPA plus spot-instance scheduling policies.
• Wrote the Terraform module library now used by every squad in a 600-engineer delivery organisation.

Rate floor

€55/hr

Experience

9yrs

Start

2 weeks

Go, Kafka, PostgreSQL, Kubernetes

• Rebuilt a card-authorisation ingestion tier to sustain 35k TPS on Go + Kafka, cutting p99 from 410ms to 38ms.
• Owns a 9-node Kafka cluster (partition rebalancing, exactly-once semantics, MirrorMaker2 DR across two regions).
• Cut PostgreSQL write amplification 4x by replacing per-row triggers with logical-replication CDC into ClickHouse.
• Led a 6-engineer platform squad through a zero-downtime monolith-to-services split over 14 months.

Rate floor

€58/hr

Experience

11yrs

Start

Available now