Jobs for senior java backend developer at London

Trackunit is seeking an experienced Backend Software Developer to join a 200+ engineering team, driving backend features for an IoT SaaS platform used by thousands of users daily. The role emphasizes REST APIs in Java, GraphQL, and scalable stream processing with Kafka, Kinesis, or Flink, plus mentoring and collaborative design in a hybrid Ontario...

Senior Software Developer, Backend, Applied AI Agent Studio Google, Waterloo, ON, Canada; Toronto, ON, Canada Mid Experience driving progress, solving problems, and mentoring more junior team members; deeper expertise and applied knowledge within relevant area. X This posting is for a new vacancy. Google utilizes AI tools to assist in assessing...

Why Sony Interactive Entertainment? Sony Interactive Entertainment isn't just the Best Place to Play - it's also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we're part of a proud legacy of innovation and excellence. SIE is a dynamic technology company,...

Toronto, Waterloo, Canada | Posted on 08/17/2026 Backend Integration Developer (Java/Spring Boot) Contribute to a strategic digital transformation initiative within the insurance sector focused on enhancing application lifecycle tracking and electronic document management. This opportunity offers the chance to work on enterprise integrations, API...

As an experienced Backend Software Developer, you will join our team of 200+ engineers where you'll be working alongside a core group of qualified colleagues who are curious and challenge assumptions and technical limits to find the best solutions. You will be an integral part in the continuous development of our hands-on products used by 10,000+ active...

A leading software company is looking for a Senior Java Developer to ensure data quality and optimize data pipelines. The role requires at least 10 years of hands-on experience with Java and related technologies, such as SQL, Spring, and Cassandra. You will work in a hybrid environment in Toronto or London and collaborate with Agile teams to deliver scalable...

Inclusion without Exception Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our...

As a Technical Lead or Senior Consultant, you will be responsible for leading the design, development, and delivery of scalable enterprise applications. This role combines deep hands‑on engineering expertise with solution leadership, team mentorship, and strong client engagement within a consulting environment. Key Responsibilities Lead design of ETL,...

A sports-tourism technology company is seeking a senior backend developer to lead projects from concept to production. The ideal candidate will have over 8 years of experience with PHP and 5 years with Laravel, capable of designing and implementing scalable APIs and database strategies. The role offers a hybrid work environment, competitive salary and...

Elevate your career with EventConnect, a hybrid Senior PHP Developer role based in London, Ontario. Lead backend projects and drive technical decision-making for our cutting-edge software platform. In this senior role, you will leverage your 8+ years of PHP experience to spearhead backend projects from inception to production. Collaborate with...

As an experienced Backend Software Developer, you will join our team of 200+ engineers where you'll be working alongside a core group of qualified colleagues who are curious and challenge assumptions and technical limits to find the best solutions. You will be an integral part in the continuous development of our hands‑on products used by 10,000+ active...

Java + Spark Developer (Senior) – 1-Year Term Location: GTA preferred; Mississauga is the head office. Hybrid — predominantly remote, with occasional attendance at the office (approximately once per month as required). Fully remote is an option for candidates located outside the GTA. Employment Type 1-Year Fixed-Term (Full-Time Salary + Benefits +...

Transform energy management with LYNKED as a Senior Developer focused on IoT solutions. Engage with advanced cloud platforms and smart metering technologies to foster sustainability initiatives. In the role of Senior Developer, you will harness your 5+ years of software development experience to improve our IoT technologies. Your expertise in APIs, cloud...

LYNKED is at the forefront of providing innovative technology solutions that drive efficiency and sustainability. With a diverse product portfolio that includes smart thermal energy and water meters, as well as the most advanced cloud IoT Platform and communication infrastructure for multi-tenant properties, LYNKED is shaping the future of energy use and...

Google's Waterloo office is hiring a Software Developer for the Developer Connect Insights team. You will build and scale backend services that integrate SDLC events from runtimes, deployments, artifacts, and dependencies, enabling developers to understand runtime health at large scale. You will work across teams, mentor juniors, and contribute to...

Software Developer (Senior)Full Time London, ONAre you looking to join a team where everyone - including you - is striving to constantly improve their knowledge of system project architecture, coding languages, design patterns, and testing? We are passionate about clean, well-organized code, and how systems and users interact with our implementations.Being...

Who We Are Verily Health is a data platform and technology company purpose-built to power AI-enabled precision health solutions that accelerate research and improve care for individuals and communities. Uniquely positioned at the intersection of technology, data science, and healthcare, Verily transforms multimodal health data into insights, models, and...

About Us LYNKED is at the forefront of providing innovative technology solutions that drive efficiency and sustainability. With a diverse product portfolio that includes smart thermal energy and water meters, as well as the most advanced cloud IoT Platform and communication infrastructure for multi-tenant properties, LYNKED is shaping the future of energy...

Take charge of ITPS Canada's Flight School Management System as a Senior Full Stack Developer. Shape the architecture and integrate AI features in a high-impact aviation environment. This role in London, Ontario, involves developing an ERP platform that powers flight training operations. You will work on essential components like simulator scheduling,...

Take the lead in developing a sophisticated ERP and AI system at ITPS Canada as a Senior Full Stack Developer. Help shape the future of flight school management efficiently. In this role, you will be instrumental in developing the Flight School Management System, a pivotal ERP platform for operational management. Your responsibilities will encompass...