A Software Engineer at Echo Global Logistics plays a pivotal role in developing and maintaining software solutions that streamline logistics and transportation processes. This position is essential for ensuring that the company's technology infrastructure supports its mission of providing efficient and reliable logistics services. As a Software Engineer, you will work on innovative projects that directly impact client satisfaction and operational efficiency, making your contributions critical to the company's success. In this role, you will engage with various teams, including product management and operations, to create software that enhances user experiences and optimizes supply chain management. Projects may involve developing applications for real-time tracking, data analysis, or automation, providing a unique opportunity to work on complex problems in a fast-paced environment. Expect to be challenged intellectually and to collaborate closely with cross-functional teams, ultimately driving the company's technological advancement.
Initial Screening
reportedFirst contact by a recruiter to assess candidate qualifications and fit.
What to demonstrate
- First contact by a recruiter to assess candidate qualifications and fit
- Depth in Problem Solving
How to prepare
- Be able to walk your CV end to end in two minutes, and say why this company specifically.
- Have your salary expectations, notice period and location constraints ready, and ask for the rest of the loop in writing.
Technical Assessments
reportedCandidates undergo technical evaluations to demonstrate their skills.
What to demonstrate
- Candidates undergo technical evaluations to demonstrate their skills
- Depth in Problem Solving
How to prepare
- Answer aloud and timed: How do you manage version control in your projects?
- Answer aloud and timed: Can you describe a challenging bug you encountered and how you resolved it?
In-Person Interviews
reportedCandidates participate in interviews focusing on technical discussions and behavioral fit.
What to demonstrate
- Candidates participate in interviews focusing on technical discussions and behavioral fit
- Depth in Problem Solving
How to prepare
- Answer aloud and timed: What are the key differences between REST and SOAP APIs?
- Answer aloud and timed: Describe a time when you had to work with a difficult team member. How did you handle it?
PracHub editorial advice for the preparation topics above.
Understand the Company’s Mission
Familiarize yourself with Echo Global Logistics and its mission. Knowing how your role contributes to the overall goals will help you articulate your value during the interview.
Practice Technical Skills
Engage in coding exercises and technical assessments to sharpen your skills. Platforms like HackerRank or LeetCode can be beneficial for practicing coding problems.
Prepare Behavioral Examples
Have specific examples ready that demonstrate your problem-solving skills and teamwork abilities. Use the STAR method (Situation, Task, Action, Result) for structuring your responses.
Ask Insightful Questions
Prepare thoughtful questions to ask your interviewers about the team, projects, and company culture. This shows your genuine interest and helps you assess if the company is the right fit for you.
Choose a category, try a prompt, then open its approach, worked solution or follow-up when you need it.
Write a function to sort an array of integers.
Write a function to sort an array of integers.
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
How would you implement a search algorithm to find an item in a large dataset?
How would you implement a search algorithm to find an item in a large dataset?
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
Can you explain the time complexity of your solution for a given problem?
Can you explain the time complexity of your solution for a given problem?
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
Find version gaps and relay lag with window functions
outbox_event holds event_id, aggregate_type, aggregate_id, aggregate_version, event_type, payload, status ('pending','published','dead'), attempts, created_at, published_at. A projection is missing rows and you must decide whether the relay skipped events or the consumer dropped them. Write three queries over the last seven days: one listing every aggregate_id whose published aggregate_version sequence has a hole, one giving per-day counts with a running total, and one returning the newest published event per aggregate. For each, say where the window function is evaluated relative to WHERE and LIMIT. PostgreSQL 16.
Approach
- Gaps: compute lead(aggregate_version) OVER (PARTITION BY aggregate_id ORDER BY aggregate_version) in a subquery, then filter next_version <> aggregate_version + 1 in the outer query. Window functions are evaluated after WHERE, GROUP BY and HAVING and before the outer ORDER BY and LIMIT, so the predicate cannot sit in the same WHERE clause and PostgreSQL 16 has no QUALIFY.
- Say what the seven-day filter does to the answer: it truncates every partition, so the first row per aggregate has no predecessor inside the window and a hole spanning the boundary is invisible. Widen the window, or join to resource.version as the authority for the true maximum.
- Running total: SELECT date_trunc('day', created_at) AS d, count() AS n, sum(count()) OVER (ORDER BY date_trunc('day', created_at) ROWS UNBOUNDED PRECEDING). An aggregate inside a window call is legal because grouping runs before windowing. The grouping key is unique per row here so ROWS and RANGE agree, but write the frame anyway — over ungrouped rows with tied timestamps the default RANGE frame pulls in every peer row and the total jumps.
- Newest per aggregate: DISTINCT ON (aggregate_id) ... ORDER BY aggregate_id, aggregate_version DESC is the cheap PostgreSQL-only form when an index matches that order; row_number() OVER (PARTITION BY aggregate_id ORDER BY aggregate_version DESC) = 1 is the portable form and needs a subquery for the same evaluation-order reason as the gap query.
Follow-up
- Relay failover redelivers events. Does a duplicate break the gap query, and how would you detect one from this table alone?
- Turn the gap check into a continuous monitor rather than a query someone runs after an incident. What does it watch?
Stop tag and share joins from fanning out a page
resource_tag is (resource_id, tag_id) with PK (resource_id, tag_id); resource_share is (resource_id, shared_with_user_id, permission). The tagged-and-shared listing inner-joins resource to both, filters tenant_id, tag_id = ANY($2) and shared_with_user_id = $3, orders by updated_at DESC and takes 50. Pages come back with fewer than 50 distinct resources and the total in the header is far too high. Explain the row multiplication, rewrite both the page query and the count query so each is correct, and name the index each one needs. PostgreSQL 16.
Approach
- Do the arithmetic against the predicates that are actually there. An inner join emits one row per matching child row, and both joins are filtered: tag_id = ANY($2) admits only the requested tags, shared_with_user_id = $3 admits one user's share rows. So a resource holding three of the requested tags and shared with $3 once yields three rows, not one — the multiplier is its count of matching tags times its share rows for that single user, and that second factor is 1 unless the table admits duplicate (resource_id, shared_with_user_id) pairs. LIMIT 50 then limits rows rather than resources, and COUNT(*) counts pairs — the header is the product, not the population.
- Reject DISTINCT as the fix. It deduplicates after the product has been built, so the planner must materialise and sort the fanned-out set before the LIMIT can apply, and it leaves any SUM or AVG in the same select list wrong.
- Rewrite both filters as semi-joins, keeping resource as the only row source: AND EXISTS (SELECT 1 FROM resource_tag rt WHERE rt.resource_id = r.resource_id AND rt.tag_id = ANY($2)) and the same shape against resource_share. A semi-join stops at the first match per resource and preserves the driving index order, so ORDER BY updated_at DESC, resource_id DESC LIMIT 50 still stops after 50 rows.
- Count with the same predicates and no join at all: SELECT count(*) FROM resource r WHERE r.tenant_id = $1 AND r.status = 'active' AND EXISTS (...) AND EXISTS (...). Nothing multiplies a resource, so the number is the population.
Follow-up
- The filter changes from 'any of these tags' to 'all of these tags'. Rewrite it and state what it costs relative to the ANY form.
- A resource can be shared with the same user twice under different permissions. Does your count change, and should it?
What programming languages are you most comfortable with, and why?
What programming languages are you most comfortable with, and why?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
Explain the concept of OOP and its principles.
Explain the concept of OOP and its principles.
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
How do you manage version control in your projects?
How do you manage version control in your projects?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
Can you describe a challenging bug you encountered and how you resolved it?
Can you describe a challenging bug you encountered and how you resolved it?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
What are the key differences between REST and SOAP APIs?
What are the key differences between REST and SOAP APIs?
Approach
- Say who the caller is and what they do when the call fails halfway.
- Define the identity of a request so a retry cannot double-apply it.
- Separate accepted, pending, failed and confirmed; they are different facts.
- Design the error taxonomy before the success shape; callers branch on it.
Follow-up
- What happens if the caller retries after a timeout?
- How does a client discover it is on an old version of this contract?
Walk us through your thought process in designing a software solution for a logistics problem.
Walk us through your thought process in designing a software solution for a logistics problem.
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
How would you approach optimizing an existing application for better performance?
How would you approach optimizing an existing application for better performance?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
Given a specific scenario, outline how you would troubleshoot an application failure.
Given a specific scenario, outline how you would troubleshoot an application failure.
Approach
- Establish what changed and when, before forming any theory.
- Pick a bisection that eliminates candidates whichever way it turns out.
- Check the instrumentation before believing the symptom.
- Separate the trigger from the cause; the deploy is rarely the bug.
Follow-up
- What would you look at first, and what would it rule out?
- How would you tell a cause from a coincidence here?
Built from the rounds and topics Echo Global Logistics candidates report.
Prepare, practise & reflect
One practical outcome each day. Spend longer where you need it.
0 / 7 done01Map the Echo Global Logistics loop
- Write out the reported sequence: Initial Screening, Technical Assessments, In-Person Interviews.
- For each round, write one sentence on what it is judging, from the description above, and mark the one you are least ready for.
Deliverable: A one-page map of the 3 reported rounds, with the weakest marked.
02Work Problem Solving
- Spend the session on Problem Solving, which Echo Global Logistics candidates report being tested on.
- Write one worked example in Problem Solving and time yourself on it.
Deliverable: One timed worked example in Problem Solving.
03Work Angular (Frontend Framework)
- Spend the session on Angular (Frontend Framework), which Echo Global Logistics candidates report being tested on.
- Write one worked example in Angular (Frontend Framework) and time yourself on it.
Deliverable: One timed worked example in Angular (Frontend Framework).
04Work Database Concepts (SQL Joins)
- Spend the session on Database Concepts (SQL Joins), which Echo Global Logistics candidates report being tested on.
- Write one worked example in Database Concepts (SQL Joins) and time yourself on it.
Deliverable: One timed worked example in Database Concepts (SQL Joins).
05Answer out loud: Technical / Domain Questions
- Answer aloud, timed: What programming languages are you most comfortable with, and why?
- Answer aloud, timed: Explain the concept of OOP and its principles.
Deliverable: Spoken answers to 2 reported Technical / Domain Questions question(s), under time.
06Answer out loud: Behavioral / Leadership
- Answer aloud, timed: Describe a time when you had to work with a difficult team member. How did you handle it?
- Answer aloud, timed: What is your approach to receiving and providing feedback?
Deliverable: Spoken answers to 2 reported Behavioral / Leadership question(s), under time.
07Answer out loud: Problem-Solving / Case Studies
- Answer aloud, timed: Walk us through your thought process in designing a software solution for a logistics problem.
- Answer aloud, timed: How would you approach optimizing an existing application for better performance?
Deliverable: Spoken answers to 2 reported Problem-Solving / Case Studies question(s), under time.
Expand any day for tasks and deliverables. Your progress is saved on this device.
Behavioural rounds judge the decision you made and what it cost.
Describe a time when you had to work with a difficult team member. How did you handle it?
Describe a time when you had to work with a difficult team member. How did you handle it?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
What is your approach to receiving and providing feedback?
What is your approach to receiving and providing feedback?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
How do you prioritize tasks when working on multiple projects?
How do you prioritize tasks when working on multiple projects?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Tell me about a successful project you led and what made it successful.
Tell me about a successful project you led and what made it successful.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
How do you handle tight deadlines and pressure?
How do you handle tight deadlines and pressure?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
- 01
Describe a time when you had to work with a difficult team member. How did you handle it?
- 02
What is your approach to receiving and providing feedback?
- 03
How do you prioritize tasks when working on multiple projects?
- 04
Tell me about a successful project you led and what made it successful.
How difficult are the interviews, and how much preparation time is typically needed?
The interviews can be challenging, focusing on both technical and behavioral aspects. Candidates typically benefit from 2-4 weeks of focused preparation, particularly in brushing up on technical skills and practicing coding problems.
Echo Global Logistics Software Engineer candidate reports ↗What differentiates successful candidates?
Successful candidates often demonstrate a strong blend of technical proficiency and cultural fit. They communicate clearly and effectively, showcasing their problem-solving abilities while aligning with the company's values.
Echo Global Logistics Software Engineer candidate reports ↗Can you describe the culture and working style at Echo Global Logistics?
Echo Global Logistics fosters a collaborative and innovative environment. Employees are encouraged to share ideas and work together to solve problems, promoting a culture of continuous improvement.
Echo Global Logistics Software Engineer candidate reports ↗What is the typical timeline from the initial screen to an offer?
The timeline can vary, but candidates can generally expect a response within 2-4 weeks after their final interview.
Echo Global Logistics Software Engineer candidate reports ↗Are remote work or hybrid expectations common?
Remote work policies may vary by team and role. It is advisable to inquire about specific expectations during the interview process.
Echo Global Logistics Software Engineer candidate reports ↗What topics does Echo Global Logistics test in interviews?
Echo Global Logistics interviews most often cover Behavioral Interviewing, Problem Solving, Communication Skills, Excel (advanced proficiency), and Phone screening (recruiter call). The exact emphasis depends on the specific role you apply for.
Echo Global Logistics Software Engineer candidate reports ↗Sources & methodology 3 sources ↗
No official company page is cited. Rounds and questions come from candidate reports and PracHub editorial material; each source shows the date it was read.
- 01Echo Global Logistics Software Engineer candidate reports ↗
Company-reported rounds, questions and FAQ.
Candidate reports · Accessed 2026-09-22 - 02PracHub Software Engineer practice ↗
PracHub practice material, not company-reported.
PracHub page · Accessed 2026-09-22 - 03PracHub preparation framework ↗
PracHub preparation guidance.
PracHub page · Accessed 2026-09-22
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