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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - Alternatives - **Company:** Janus Henderson - **Location:** London, UK - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Airflow, Amazon Web Services, Automation of Tests, Microsoft Azure, Big Data, C Sharp (Programming Language), Cloud Computing, Cloud Engineering, Code Review, Databases, Continuous Integration, Data as a Services, Data Infrastructure, Distributed Systems, Python (Programming Language), NumPy, Open Source Technology, Software Architecture, Software Tools, Standard Sql, Software Engineering, Data Streaming, Systems Integration, Cloud Platform System, Azure Data Factory, Spring Cloud, Snowflake, Fastapi, Pandas, Event Driven Architecture, Microsoft Fabric, AngularJS, Pyspark, Infrastructure Automation Frameworks, Information Technology, Apache Kafka, Graphql, Data Management, Terraform, Software Version Control, Data Pipelines, Devsecops, Docker, Databricks - **Published:** October 16, 2026 - **Apply:** https://dejobs.org/x/x/03BAA658F55F467A9D3B442D40B2BC90/job/ ## About the Role * Client-focused, committed to excellence, detail-oriented, and highly collaborative * Craftsman-like approach to building software; takes pride in engineering excellence and instils these values across engineering teams. * Strong software engineering background with proven experience delivering production-grade applications and platforms. * Expert-level Python development skills, including design, development, testing, deployment, and support of business-critical applications and data services. * Strong experience with Python libraries and frameworks such as Pandas, NumPy, PySpark, FastAPI, or equivalent. * Proven experience designing, building, and operating cloud-native solutions on Azure (preferred), AWS, or similar cloud platforms. * Experience building scalable data platforms, data pipelines, APIs, integration services, and event-driven architectures. * Strong understanding of distributed computing and large-scale data processing. * Experience implementing software engineering best practices including source control, code reviews, automated testing, CI/CD, DevSecOps, and Infrastructure as Code. * Strong SQL and database skills, with experience working across operational, analytical, and cloud-based data platforms. * Demonstrable passion for technology through personal projects, open-source contribution, continuous learning, or technology leadership. * Inspires cross-functional teams towards common goals and objectives. Uses influence to align stakeholders and drive technology adoption and organisational change. * Intellectually robust with a keen analytical approach to problem solving and technology decision-making. * Self-organised with the ability to manage delivery across multiple initiatives and competing business priorities. * Focused on delivering measurable business value through automation, simplification, modernisation, and process improvement. * Strong interpersonal skills; able to establish and maintain close working relationships with engineering teams, operations teams, portfolio managers, risk teams, and senior business stakeholders. * Confident communicator; able to explain complex technical concepts, architectural decisions, and delivery trade-offs to both technical and non-technical audiences. * Strong ownership mentality; takes responsibility for problems and drives pragmatic solutions through to completion. Nice to have skills * Investment Management experience with exposure to front-office, middle-office, risk, data, or investment platform technologies. * Experience supporting Alternative Investments, Hedge Funds, Private Markets, Multi-Asset, or Derivatives businesses. * Experience working directly with Portfolio Managers, Traders, Investment Operations, Risk, and Quantitative teams. * Experience with Databricks, Snowflake, Microsoft Fabric, or comparable modern data platforms. * Experience with workflow orchestration technologies such as Airflow. * Experience implementing Infrastructure as Code using Terraform or equivalent tooling. * Experience with containerisation technologies such as Docker and Kubernetes. * Understanding of real-time messaging, event streaming, and integration technologies such as Kafka. * Experience building and consuming REST, GraphQL, or event-driven APIs. * Experience with Azure data services and cloud architecture patterns. * Knowledge of C#, Angular, or other modern application development technologies. * Strong understanding of Agile delivery methodologies and product-oriented operating models. * Degree educated in Computer Science, Engineering, Mathematics, Physics, or a related scientific discipline. ## Description * Work directly with Alternatives Portfolio Managers to build and support cloud-native applications, data services, APIs, and platform capabilities, while enabling the investment team to develop and automate their own workflows using modern engineering tools and frameworks. * Collaborate closely with the Team Lead, Technical Lead, and wider engineering team to deliver solutions in line with business and project priorities. * Partner with the Team Lead and Technical Lead to ensure all solutions align with the strategic technology architecture, engineering standards, and long-term platform vision. * Perform hands-on software development, testing, deployment, and support, adhering to established engineering practices, governance standards, and delivery processes. * Engage directly with investment teams throughout the full delivery lifecycle, from requirements gathering and solution design through to implementation and ongoing support. * Contribute to the continuous improvement of the Alternatives technology platform, identifying opportunities to improve automation, scalability, reliability, and user experience. * Provide support for Alternative Investments-specific applications, platforms, and business processes. * Undertake additional responsibilities and duties as required. What to expect when you join our firm * Hybrid working and reasonable accommodations * Generous Holiday policies * Excellent Health and Wellbeing benefits including corporate membership to ClassPass * Paid volunteer time to step away from your desk and into the community * Support to grow through professional development courses, tuition/qualification reimbursement and more * All-inclusive approach to Diversity, Equity and Inclusion * Maternal/paternal leave benefits and family services * Complimentary subscription to Headspace - the mindfulness app * All employee events including networking opportunities and social activities * Lunch allowance for use within our subsidized onsite canteen