Algos Tech Lead, Transaction Monitoring

Solidus Labs; Greater London; On-site; GBP 120,000 - 160,000; Full time

Job summary

Solidus Labs is hiring a Tech Lead to own the Transaction Monitoring (TM) detection algorithms and lead the Algorithms team end to end. You will drive offchain and on-chain monitoring implementations, data pipelines, and system architecture, collaborating with compliance and product to translate requirements into robust engineering plans.

You will mentor a global engineering team, ensure high-quality sprint delivery, and influence the roadmap for on-chain surveillance across wallets and

Qualifications

• 8+ years backend engineering experience, including 2+ years leading or tech-leading a team.
• Strong domain knowledge of fintech, payments, banking or crypto and compliance concepts.
• Hands-on with data structures, algorithms, high-performance concurrent code.
• Proven design ownership at architecture and implementation levels.
• Experience with high-throughput, low-latency data systems (Kafka, ClickHouse, Snowflake).

Responsibilities

• Lead, mentor, and grow the existing TM global engineering team - sprint delivery, code quality, on-call health.
• Own implementation of our offchain TM detection suite.
• Drive the build-out of on-chain TM - wallet-level and protocol-level monitoring, and the data pipelines behind it.
• Produce and defend both high-level and low-level design: system architecture, data models, detection logic, and threshold/tuning frameworks.
• Partner with Global Product on the on-chain roadmap, translating regulatory and customer requirements into deliverable engineering plans.
• Merging various patterns to re-use: You’ll help shape that architecture and, over time, how engineering resources are shared across TM and TS.
• Work with compliance, customer success, and solutions teams on alert quality, false-positive reduction, and client tuning requests.

Skills

Backend engineering

Team leadership

Financial crime knowledge

Data structures & algorithms

Low-latency systems

Cross-functional communication

AI coding experience

Tools

Kafka

ClickHouse

Snowflake

Job description

About The Role

At Solidus Labs, we are shaping the financial markets of tomorrow by providing cutting‑edge, real‑time trade surveillance and transaction monitoring technology for regulated and crypto‑native financial institutions. We protect investors, enhance transparency, and ensure regulatory compliance across traditional assets, prediction markets, and crypto.

We’re hiring a Tech Lead to join our Algorithms team and own the Transaction Monitoring (TM) detection algorithms, product engineering effort end to end.

What you’ll own :

• Lead, mentor, and grow the existing TM global engineering team - sprint delivery, code quality, on‑call health.
• Own implementation of our offchain TM detection suite.
• Drive the build‑out of on‑chain TM - wallet‑level and protocol‑level monitoring, and the data pipelines behind it.
• Produce and defend both high‑level and low‑level design: system architecture, data models, detection logic, and threshold/tuning frameworks.
• Partner with Global Product on the on‑chain roadmap, translating regulatory and customer requirements into deliverable engineering plans.
• Merging various patterns to re‑use: You’ll help shape that architecture and, over time, how engineering resources are shared across TM and TS.
• Work with compliance, customer success, and solutions teams on alert quality, false‑positive reduction, and client tuning requests.

Requirements:

• 8+ years backend engineering experience, including 2+ years leading or tech‑leading a team.
• Strong domain knowledge of the financial ecosystem - fintech, payments, banking or crypto - and a solid understanding of financial crime or compliance concepts.
• Genuinely hands‑on: Strong data structures and algorithms fundamentals, a track record of high‑performance concurrent code, and still reviewing PRs and debugging production.
• Proven design ownership at both levels - architecture decisions and detailed implementation design.
• Experience with high‑throughput, low latency data systems: streaming (Kafka or similar), analytical stores (ClickHouse, Snowflake, or similar),and distributed batch processing.
• Clear written and verbal communication with non‑engineering stakeholders.
• Experience with AI coding and using coding harnesses

Nice to have

• On‑chain/blockchain data experience - chain indexing, wallet clustering, DeFi protocol mechanics.
• Exposure to trade surveillance or market abuse detection.
• Experience at a RegTech vendor or in a bank/exchange compliance technology function.

Benefits:

Why join us?

You’ll own a product line, not a component - with a team already in place, a clear regulatory driver, and a roadmap that expands into on‑chain and market surveillance convergence.