Software Engineer

SourceWhale

Senior Software Engineer leading technical delivery for a platform using AI and automation. Collaborating with teams to drive engineering excellence and mentor junior engineers.

Posted 5/27/2026full-timeRemote • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsjQueryPythonSvelte

About the role

Key responsibilities & impact

Lead complex technical delivery
Own the delivery of complex features and systems end-to-end
Break ambiguous product problems into scalable technical solutions
Balance speed, maintainability, reliability, and customer value in decision-making
Guide implementation decisions and technical trade-offs across the stream
Drive technical excellence
Write maintainable, predictable, scalable code
Perform thoughtful technical reviews that improve both code quality and engineer capability
Shape patterns, standards, and approaches that improve consistency across the stream
Identify and resolve systemic technical issues, not just isolated bugs
Influence architecture & design
Design efficient, scalable systems with long-term maintainability in mind
Evaluate architectural trade-offs across integrations, APIs, infrastructure, and product workflows
Anticipate scaling challenges and operational risks early
Contribute to broader engineering discussions through technical leadership and peer influence
Mentor & elevate engineers
Coach junior engineers on implementation, debugging, design patterns, and engineering practices
Provide timely, actionable technical feedback
Support a culture of collaboration, ownership, accountability, and continuous improvement
Lead through example by modelling strong engineering judgement and professionalism
Improve reliability & operations
Improve deployment reliability, monitoring, and observability across the stream
Participate in and lead production incident response where needed
Drive actionable post-mortems and operational improvements
Advocate for proactive quality practices that reduce long-term operational risk
Collaborate cross-functionally
Partner closely with Product and QA to ensure the team understands what is being built, why it matters, and how quality is maintained
Simplify complex technical concepts for non-technical stakeholders
Communicate risks, dependencies, and trade-offs clearly and early

Requirements

What you’ll need

Strong professional experience with backend development using Python
Experience building modern frontend applications (Svelte and/or jQuery preferred)
Strong understanding of APIs, distributed systems, integrations, and scalable application design
Experience working across complex product ecosystems and multiple technical surfaces
Experience with any of the following is beneficial: AWS cloud infrastructure, Browser/email extensions, CRM integrations, OpenAI APIs / LLM-powered applications, Observability and operational tooling

Benefits

Comp & perks

25 days annual leave
MacBook + any additional tech or software you need
Flexible working arrangements
Private Health, Dental, and Vision Insurance through Aviva
Income Protection Insurance
Extended mental health cover and Employee Assistance Programme
Compassionate leave policy
Private pension contributions (Royal London)
Monthly company social events
Regular in-person hackathons

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

backend developmentPythonfrontend applicationsSveltejQueryAPIsdistributed systemsscalable application designAWSobservability

Soft Skills

technical leadershipmentoringcollaborationcommunicationproblem-solvingdecision-makinginfluencecoachingaccountabilitycontinuous improvement