Job Posting: CHORD Research Associate

Date Posted: 05/12/2023
Req ID: 31266
Faculty/Division: Faculty of Arts & Science
Department: Dunlap Inst. for Astronomy & Astrophysic
Campus: St. George (Downtown Toronto)

To apply:



The Dunlap Institute for Astronomy and Astrophysics at the University of Toronto invites applications for a Research Associate (Limited Term) for a two-year appointment, renewable as funding allows.


At the Long Wavelength Lab (LW Lab) we build some of the world’s largest radio correlators. Under the general direction of Prof. Keith Vanderlinde, the responsibilities of this position centre around design and implementation of high-throughput signal processing software for use on the Canadian Hydrogen Observatory and Radio-transient Detector (CHORD)’s GPU-based correlator and beamformer, and on outlying antenna stations. The CHORD correlator will continuously process ~10 Tb/s of radio data, performing Peta-scale processing on a dedicated supercomputer cluster with 100+ GPUs and 1000+ CPU cores. With this position you will have the opportunity to work with cutting edge software and hardware, contribute to open-source software projects, and help to enable groundbreaking scientific discoveries. This position interacts with and supports other members of the CHORD collaboration, located at several universities across Canada & the US. In all these activities, there is the expectation that the appointee will supervise the work of undergraduates and graduate students.


The appointment is for two years, renewable for at least another two and further as funding allows. The start date is July 1, 2023 or as mutually agreed.


Applicants should apply online at the link below and include a covering letter, curriculum vitae and three reference names with their contact addresses and phone numbers. Any questions regarding this position should be directed to


The Dunlap Institute, DADDAA and CITA together host more than 150 staff and students in astronomy, who conduct a diverse research program across instrumentation, observation, computation and theory. The Dunlap Institute is located on a beautiful 19th century campus in the heart of one of the world’s great cities. Rated as having one of the highest standards of living in the world, Toronto offers a huge range of indoor and outdoor pursuits, outstanding food and music, and a vibrant and diverse cultural community.







  • PhD or equivalent certification in astrophysics, astronomy, physics, computer engineering or computer science



  • Experience organizing a team of student researchers on complex data analyses.
  • At least one year of relevant postdoctoral experience
  • Some understanding of radio astronomical instrumentation and polarization calibration
  • Demonstrable contributions to scientific research in the capacity of high-performance computing, high-level distributed software, or high-throughput signal processing software.
  • Experience developing research processes
  • Experience contributing to large-scale astrophysics research
  • Demonstrated track record of academic and/or research excellence
  • Experience with analyzing, designing, testing, installing, debugging, modifying, upgrading, operating and maintaining custom software environments.
  • Experience working with industry standard development tools (e.g git) and programming best practices.
  • Experience working in Linux/Unix based heterogeneous and massively parallel computing environments.



  • Advanced skills in radio interferometry, large-scale distributed data processing, radio astronomy pipelines or transient science 
  • Demonstrated excellence at scientific writing and publishing
  • Demonstrated ability to work with students
  • Demonstrated ability to handle several tasks, and effectively prioritize and meet multiple deadlines.
  • Demonstrated ability to work effectively with a team 



Assets (non-essential)

  • Experience with GPU programming (CUDA or OpenCL).
  • Experience with massively-parallel computation.
  • Experience with designing REST APIs.
  • Experience managing continuous integration/regression testing.
  • Experience with event driven programming models.
  • Familiarity with using Docker containers.


This role is currently eligible for a hybrid work arrangement, pursuant to University policies and guidelines, including but not limited to the University of Toronto’s Alternative Work Arrangements Guideline.”


If you have any questions about Alternative Work Arrangements in general, please visit:


Alternative Work Arrangements Article

Alternative Work Arrangements Guidelines


As a reminder, the Alternative Work Arrangements Guideline is posted publicly and can be shared with candidates who may wish to better understand the AWA process at U of T.

Closing Date: 06/09/2023,11:59PM ET
Employee Group: Research Associate
Appointment Type: Grant – Term
Schedule: Full-Time
Pay Scale Group & Hiring Zone: R01 — Research Associates (Limited Term): $47,287 – $88,663
Job Category: Research Administration & Teaching

All qualified candidates are encouraged to apply; however, Canadians and permanent residents will be given priority.

Diversity Statement

The University of Toronto embraces Diversity and is building a culture of belonging that increases our capacity to effectively address and serve the interests of our global community. We strongly encourage applications from Indigenous Peoples, Black and racialized persons, women, persons with disabilities, and people of diverse sexual and gender identities. We value applicants who have demonstrated a commitment to equity, diversity and inclusion and recognize that diverse perspectives, experiences, and expertise are essential to strengthening our academic mission.

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