Senior Software Engineer

Join to apply for the Senior Software Engineer role at OSCAR ASSOCIATES (UK) LIMITED
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Salary: £55,000 - £65,000

Location: Birmingham (Hybrid - 2 days per week in office)

Industry: Sustainable Technology / Data & Analytics Platforms

I'm recruiting for a growing Birmingham-based tech company that's building open, scalable software used to power data-driven platforms in the sustainability and energy space. This is an exciting opportunity for a Senior Software Engineer who wants to work on meaningful products, influence technical decisions, and be part of a team that genuinely values good engineering.

You’ll be joining a close-knit engineering team of around 12, with a strong senior presence and a collaborative, low-ego culture. Engineers here are trusted to make decisions, challenge ideas, and help shape both the product and the technical roadmap.

• Building and evolving large-scale web applications used by organisations across the UK
• Designing and delivering new platform features end-to-end
• Improving performance, scalability, and reliability of existing systems
• Contributing to architectural decisions and long-term technical strategy
• Mentoring developers and raising engineering standards
• Working closely with Product, Design, and Data teams

Projects include customer-facing dashboards, data ingestion services, internal tooling, and API-first platforms.

• Backend: PHP (Laravel), Python
• Frontend:
  JavaScript, Type Script, React
• APIs: REST, GraphQL
• Databases:
  Postgre
  
  SQL, MySQL, Redis
• Infrastructure:
  Linux, Docker, Kubernetes, CI/CD
• Cloud: AWS
• Testing: PHPUnit, Jest, automated integration testing

You don’t need experience in everything - strong fundamentals and an interest in learning are far more important.

• Proven experience as a Senior Software Engineer
• Strong background in modern web application development
• Experience working with open-source technologies in production
• Confident making technical decisions and guiding others
• Comfortable mentoring, reviewing code, and improving processes
• A pragmatic, collaborative mindset

• Salary: £55,000 - £65,000 depending on experience
• Hybrid working: 2 days per week in a Birmingham office
• 25 days holiday plus UK bank holidays
• Flexible working hours and a strong focus on work-life balance
• Company pension scheme with employer contribution
• Private healthcare and wellbeing support
• Annual learning and development budget for training, courses, and conferences
• Modern equipment provided (laptop, peripherals, etc.)
• Regular team events and knowledge-sharing sessions

This role offers the chance to work on technically interesting, real-world problems in a stable yet fast-moving environment, without excessive bureaucracy. If you're a Senior Engineer looking for autonomy, impact, and a strong benefits package in Birmingham, this is well worth a conversation.

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Seniority level: Mid-Senior level

Employment type: Full-time

Job function: Engineering and Information Technology

Industries: Software Development