Principal Engineer

We work as an extension of our clients' teams, helping them define the right problems, shape solutions, and deliver technology-driven outcomes that create measurable business value. Our expertise spans software engineering, AI & data, product development, and customer experience, delivered by teams that combine strong technical depth with a consulting mindset.

Why Join Us? If you are looking for a place where you can think beyond execution, take true ownership of outcomes, influence decisions, and continuously learn alongside top-tier specialists in a truly global environment, we'd love to meet you.

How will you impact?

As a Principal Engineer at Parser, you will partner with a long-established leader in the global payments industry to define and launch a next-generation onboarding solution for its clients. You will drive the architecture, reliability, and engineering direction of critical financial platforms, shaping an onboarding engine platform that enables seamless integration through a new SDK framework. Working in an ambiguous space, you will play a critical role in product discovery and early product definition, designing and testing early concepts to translate complex user needs and data into clear, intuitive, and high-value experiences that accelerate client onboarding.

Your key responsibilities:

Your responsibilities include, but are not limited to:

* Technical Strategy & Architecture: Co-own product squads alongside Product Managers and design distributed, cloud-native, and event-driven systems (e.g., using Kubernetes, Kafka, or microservices).
* Hands-on Engineering Leadership: Stay close to the code by pairing on complex problems, reviewing critical changes, and unblocking delivery.
* Regulatory & Risk Governance: Build secure-by-design, resilient, and auditable systems that meet strict financial regulations, anti-money laundering (AML) controls, and data protection standards.
* Modern Engineering & AI Integration: Champion CI/CD optimization, automated testing, and emerging practices like AI-assisted software delivery or agentic engineering workflows while keeping human-in-the-loop governance.
* Coaching & Influence: Mentor engineers across teams, align platform standards with Security, QE, and Risk/Audit, and influence technical roadmaps without necessarily holding direct line-management authority.
* Product Discovery & Integration Modeling: Help define how clients are onboarded and integrated, how complex data is surfaced and compared, and what the most effective integration model looks like.
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What you'll bring to the role:

Essential Requirements:

* Experience: Extensive software engineering background (often 8+ years) with proven principal- or staff-level technical leadership in agile, product-led, or regulated financial environments.
* Domain Knowledge: Deep familiarity with core banking workflows (ledger systems, interest calculations, posting engines), payments rails, or digital assets/blockchain depending on the team.
* Tech Stack Proficiency: Strong command of backend languages (e.g., Java, Rust, Go), cloud platforms (AWS, Azure), container orchestration (Kubernetes), and relational/distributed databases.
* Risk & Resilience Mindset: Track record of designing systems with high availability, disaster recovery, and clear failure-mode analysis for real-money transactions.

Location:

London, Hybrid

You will receive:

* The chance to join an organization with triple-digit growth that is changing the paradigm on how software products are built.
* The opportunity to be part of an amazing, multicultural community of tech experts.
* A highly competitive compensation package.
* A flexible and hybrid working environment.
* Medical insurance.

Parser is committed to fostering an inclusive workplace and providing equal employment opportunities to all applicants regardless of race, religion, gender, sexual orientation, age, disability, or any other protected characteristic under applicable law.

If you require reasonable accommodations during the recruitment process, please let us know and we will work with you to support your participation.

By applying to this role, you acknowledge that your personal data will be processed in accordance with Parser's Privacy Notice for recruitment purposes.

Parser may use AI-assisted tools during certain stages of the recruitment process to support operational efficiency. Our recruiting teams use AI to streamline note-taking and scheduling. All hiring decisions are made by people, with human review and oversight.

Come and join our #ParserCommunity.

https://parserdigital.com