i
Iris Software
Filter interviews by
I applied via Naukri.com and was interviewed in Jan 2021. There were 5 interview rounds.
Optimization techniques in Spark involve tuning parameters, partitioning data, and using caching.
Tune parameters like memory allocation, parallelism, and shuffle partitions for better performance
Partition data to distribute workload evenly across nodes
Use caching to store intermediate results in memory for faster access
Examples: repartition(), cache(), persist() functions in Spark
I applied via Approached by Company and was interviewed in Jan 2024. There was 1 interview round.
Questions on SQL, Python and Data Science. SQL joins and Cumulative Sum question followed by Python function definitions to lambda functions - square the odd digits in array using lambda function. Data Science - Which test metric to use for assessing CTR and when to differentiate between Mean Sq Error and R2 coefficient of Variation. Overall medium difficulty questions.
posted on 26 Feb 2024
Coding and mcq round
I applied via Naukri.com and was interviewed in Apr 2023. There were 2 interview rounds.
I applied via Company Website and was interviewed before Jul 2023. There were 3 interview rounds.
5 coding questions to evaluate data structure and algorithms shared over an online coding platform.
Case study to evaluate the problem solving strategy
I was interviewed before May 2023.
Sql and python coding problems
posted on 4 Feb 2022
I applied via LinkedIn and was interviewed in Aug 2021. There were 3 interview rounds.
I had to go with 3 live coding problems in which they included concepts on recursion and dynamic programming.
I applied via Approached by Company and was interviewed before Aug 2022. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Mar 2021. There were 4 interview rounds.
based on 5 reviews
Rating in categories
Senior Software Engineer
558
salaries
| ₹10 L/yr - ₹32 L/yr |
Technical Lead
525
salaries
| ₹15 L/yr - ₹36.2 L/yr |
Senior Technical Consultant
486
salaries
| ₹10.1 L/yr - ₹25.1 L/yr |
Senior Engineer
390
salaries
| ₹9.5 L/yr - ₹31 L/yr |
Senior Technology Engineer
294
salaries
| ₹11.8 L/yr - ₹33 L/yr |
TCS
Infosys
Wipro
HCLTech